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authorFulup Ar Foll <fulup@iot.bzh>2017-08-18 01:09:56 +0200
committerFulup Ar Foll <fulup@iot.bzh>2017-08-18 01:09:56 +0200
commit41457015d45d1ce97d009009157c0713149fbb2b (patch)
treeb320fbf4415255c2817bce42d20b05e2f68ef14c
Integration with Alsa HookPlugin is now working.
Diffstat
-rw-r--r--CMakeLists.txt84
-rw-r--r--README.md333
-rwxr-xr-xa.outbin0 -> 12552 bytes
-rw-r--r--ctl-apidef.h115
-rw-r--r--ctl-apidef.json250
-rw-r--r--ctl-binding.c65
-rw-r--r--ctl-binding.h146
-rw-r--r--ctl-dispatch.c665
-rw-r--r--ctl-lua.c1033
-rw-r--r--ctl-plugin-sample.c134
-rw-r--r--ctl-policy.c221
-rw-r--r--ctl-timer.c101
12 files changed, 3147 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..a9e8e60
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,84 @@
+###########################################################################
+# Copyright 2015, 2016, 2017 IoT.bzh
+#
+# author: Fulup Ar Foll <fulup@iot.bzh>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+###########################################################################
+
+
+# Generate API-v2 hat from OpenAPI json definition
+macro(SET_TARGET_GENSKEL TARGET_NAME API_DEF_NAME)
+ add_custom_command(OUTPUT ${API_DEF_NAME}.h
+ WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+ DEPENDS ${API_DEF_NAME}.json
+ COMMAND afb-genskel ${API_DEF_NAME}.json >${API_DEF_NAME}.h
+ )
+ add_custom_target(${API_DEF_NAME}_OPENAPI DEPENDS ${API_DEF_NAME}.h)
+ add_dependencies(${TARGET_NAME} ${API_DEF_NAME}_OPENAPI)
+endmacro(SET_TARGET_GENSKEL)
+
+# Include LUA only when requested
+if(CONTROL_SUPPORT_LUA)
+ message(STATUS "Notice: LUA Controler Support Selected")
+ set(CTL_LUA_SOURCE ctl-lua.c)
+endif(CONTROL_SUPPORT_LUA)
+
+# Add target to project dependency list
+PROJECT_TARGET_ADD(control-afb)
+
+ # Define project Targets
+ ADD_LIBRARY(${TARGET_NAME} MODULE ctl-binding.c ctl-timer.c ctl-dispatch.c ${CTL_LUA_SOURCE})
+
+ # Generate API-v2 hat from OpenAPI json definition
+ SET_TARGET_GENSKEL(${TARGET_NAME} ctl-apidef)
+
+ # Binder exposes a unique public entry point
+ SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
+ PREFIX "afb-"
+ LABELS "BINDING"
+ LINK_FLAGS ${BINDINGS_LINK_FLAG}
+ OUTPUT_NAME ${TARGET_NAME}
+ )
+
+ # Library dependencies (include updates automatically)
+ TARGET_LINK_LIBRARIES(${TARGET_NAME}
+ audio-common
+ ${link_libraries}
+ )
+
+ # installation directory
+ INSTALL(TARGETS ${TARGET_NAME}
+ LIBRARY DESTINATION CMAKE_INSTALL_PREFIX )
+
+PROJECT_TARGET_ADD(audio-plugin-sample)
+
+ # Define targets
+ ADD_LIBRARY(${TARGET_NAME} MODULE ctl-plugin-sample.c)
+
+ # Alsa Plugin properties
+ SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
+ PREFIX ${CTL_PLUGIN_PRE}
+ SUFFIX ${CTL_PLUGIN_EXT}
+ OUTPUT_NAME ${TARGET_NAME}
+ )
+
+ # Library dependencies (include updates automatically)
+ TARGET_LINK_LIBRARIES(${TARGET_NAME}
+ audio-common
+ ${link_libraries}
+ )
+
+ # installation directory
+ INSTALL(TARGETS ${TARGET_NAME}
+ LIBRARY DESTINATION ${BINDINGS_INSTALL_DIR}/controler)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..403f637
--- /dev/null
+++ b/README.md
@@ -0,0 +1,333 @@
+Controler AAAA(AGL Advance Audio Controler) and more.
+------------------------------------------------------------
+
+ * Object: Generic Controler to handle Policy,Small Business Logic, Glue in between components, ...
+ * Status: Release Candidate
+ * Author: Fulup Ar Foll fulup@iot.bzh
+ * Date : August-2017
+
+## Functionalities:
+ - Create an application dedicate controller from a JSON config file
+ - Each controls (eg: navigation, multimedia, ...) is a suite of actions. When all actions succeed control is granted, if one fail control acces is denied.
+ - Actions can either be:
+ + Invocation to an other binding API, either internal or external (eg: a policy service, Alsa UCM, ...)
+ + C routines from a user provider plugin (eg: policy routine, proprietary code, ...)
+ + Lua script function. Lua provides access to every AGL appfw functionalities and can be extended from C user provided plugins.
+
+## Installation
+ - Controler is a native part of AGL Advance Audio Framework but may be used independently with any other service or application binder.
+ - Dependencies: the only dependencies are audio-common for JSON-WRAP and Filescan-utils capabilities.
+ - Controler relies on Lua-5.3, when not needed Lua might be removed at compilation time.
+
+## Config
+
+Configuration is loaded dynamically during startup time. The controller scans CONTROL_CONFIG_PATH for a file corresponding to pattern
+"onload-bindername-xxxxx.json". When controller runs within AAAA binder it searches for "onload-audio-xxxx.json". First file found in the path the loaded
+any other files corresponding to the same pather are ignored and only generate a warning.
+
+Each bloc in the configuration file are defined with
+ * label: must be provided is used either for debugging or as input for the action (eg: signal name, control name, ...)
+ * info: optional used for documentation purpose only
+
+Note by default controller config search path is defined at compilation time, but path might be overloaded with CONTROL_CONFIG_PATH
+environment variable.
+
+### Config is organised in 4 sections:
+
+ * metadata
+ * onload defines the set of action to be executed at startup time
+ * control defines the set of controls with corresponding actions
+ * event define the set of actions to be executed when receiving a given signal
+
+### Metadata
+
+As today matadata is only used for documentation purpose.
+ * label + version mandatory
+ * info optional
+
+### OnLoad section
+
+Defines startup time configuration. Onload may provide multiple initialisation profiles, each with a different label.
+ * label is mandatory. Label is used to select onload profile at initialisation through DispatchOneOnLoad("onload-label") API;
+ * info is optional
+ * plugin provides optional unique plugin name. Plugin should follow "onload-bindername-xxxxx.ctlso" patern
+ and are search into CONTROL_PLUGIN_PATH. When defined controller will execute user provided function context=CTLP_ONLOAD(label,version,info).
+ The context returned by this routine is provided back to any C routines call later by the controller. Note that Lua2C function
+ are prefix in Lua script with plugin label (eg: MyPlug: in following config sample)
+ * lua2c list of Lua commands shipped with provided plugin.
+ * require list of binding that should be initialised before the controller starts. Note that some listed requirer binding might be absent,
+ nevertheless any present binding from this list will be started before controller binding, missing ones generate a warning.
+ * action the list of action to execute during loadtime. Any failure in action will prevent controller binding from starting.
+
+### Control section
+
+Defines a list of controls that are accessible through (api="control", verb="request", control="control-label").
+
+ * label mandatory
+ * info optional
+ * permissions Cynara needed privileges to request this control (same as AppFw-V2)
+ * action the list of actions
+
+### Event section
+
+Defines a list of actions to be executed on event reception. Even can do anything a controller can (change state,
+send back signal, ...) eg: if a controller subscribes to vehicule speed, then speed-event may ajust master-volume to speed.
+
+ * label mandatory
+ * info optional
+ * action the list of actions
+
+### Actions Categories
+
+Controler support tree categories of actions. Each action return a status status where 0=success and 1=failure.
+ * AppFw API, Provides a generic model to request other bindings. Requested binding can be local (eg: ALSA/UCM) or
+ external (eg: vehicle signalling).
+ * api provides requested binding API name
+ * verb provides verb to requested binding
+ * args optionally provides a jsonc object for targeted binding API. Note that 'args' are statically defined
+ in JSON configuration file. Controler client may also provided its own arguments from the query list. Targeted
+ binding receives both arguments defined in the config file and the argument provided by controller client.
+ * C-API, when defined in the onload section, the plugin may provided C native API with CTLP-CAPI(apiname, label, args, query, context).
+ Plugin may also create Lua command with CTLP-Lua2C(LuaFuncName, label, args, query, context). Where args+query are JSONC object
+ and context the value return from CTLP_ONLOAD function. Any missing value is set to NULL.
+ * Lua-API, when compiled with Lua option, the controller support action defined directly in Lua script. During "onload" phase the
+ controller search in CONTROL_Lua_PATH file with pattern "onload-bindername-xxxx.lua". Any file corresponding to this pattern
+ is automatically loaded. Any function defined in those Lua script can be called through a controller action. Lua functions receive
+ three parameters (label, args, query).
+
+Note: Lua added functions systematically prefix. AGL standard AppFw functions are prefixed with AGL: (eg: AGL:notice(), AGL_success(), ...).
+User Lua functions added though the plugin and CTLP_Lua2C are prefix with plugin label (eg: MyPlug:HelloWorld1).
+
+### Avaliable Application Framework Commands
+
+Each Lua AppFw commands should be prefixed by AFB:
+
+ * AFB:notice ("format", arg1,... argn) LUA table are print directly as json string with '%s'.
+ AFB:error, AFB:warning, AFB:info, AFB:debug work on the same model. Printed message are limited to 512 characters.
+
+ * AFB:service ('API', 'VERB', {query}, "Lua_Callback_Name", {context}) asynchronous call to an other binding. When empty query/context should be set to '{}'
+ and not to 'nil'. When 'nil' Lua does not send 'NULL' value but remove arguments to calling stack. WARNING:"Callback"
+ is the name of the callback as a string and not a pointer to the callback. (If someone as a solution to fix this, please
+ let me known). Callback is call as LUA "function Alsa_Get_Hal_CB (error, result, context)" where:
+ * error is a Boolean
+ * result is the full answer from AppFw (do not forget to extract response)
+ * context is a copy of the Lua table pas as argument (warning it's a copy not a pointer to original table)
+
+ * error,result=AFB:servsync('API', 'VERB', {query}) Save as previous but for synchronous call. Note that Lua accept multiple
+ return. AFB:servsync return both the error message and the response as a Lua table. Like for AFB:service user should not
+ forget to extract response from result.
+
+ * AFB:success(request, response) request is the opaque handle pass when Lua is called from (api="control", verb="docall").
+ Response is a Lua table that will be return to client.
+
+ * AFB:fail(request, response) same as for success. Note that LUA generate automatically the error code from Lua function name.
+ The response is tranformed to a json string before being return to client.
+
+ * EventHandle=AFB:evtmake("MyEventName") Create an event and return the handle as an opaque handle. Note that due to a limitation
+ of json_object this opaque handle cannot be passed as argument in a callback context.
+
+ * AFB:subscribe(request, MyEventHandle) Subscribe a given client to previously created event.
+
+ * AFB:evtpush (MyEventHandle, MyEventData) Push an event to every subscribed client. MyEventData is a Lua table that will be
+ send as a json object to corresponding clients.
+
+ * timerHandle=AFB:timerset (MyTimer, "Timer_Test_CB", context) Initialise a timer from MyTimer Lua table. This table should contend 3 elements:
+ MyTimer={[l"abel"]="MyTimerName", ["delay"]=timeoutInMs, ["count"]=nBOfCycles}. Note that is count==0 then timer is cycle
+ infinitively. Context is a standard Lua table. This function return an opaque handle to be use to further control the timer.
+
+ * AFB:timerclear(timerHandle) Kill an existing timer. Return an error when timer does not exit.
+
+ * MyTimer=AFB:timerget(timerHandle) Return Label, Delay and Count of an active timer. Return an error when timerHandle does not
+ point on an active timer.
+
+Note: Except for function call during binding initialisation period. Lua call are protected and should return clean message
+ even when improperly used. If you find bug please report.
+
+### Adding Lua command from User Plugin
+
+User Plugin is optional and may provide either native C-action accessible directly from controller actions as defined in
+JSON config file, or alternatively may provide at set of Lua commands usable inside any script (onload, control,event). A simple
+plugin that provide both natice C API and Lua commands is provided as example (see ctl-plugin-sample.c). Technically a
+plugin is a simple sharelibrary and any code fitting in sharelib might be used as a plugin. Developer should nevertheless
+not forget that except when no-concurrency flag was at binding construction time, any binding should to be thread safe.
+
+A plugin must be declare with CTLP_REGISTER("MyCtlSamplePlugin"). This entry point defines a special structure that is check
+at plugin load time by the controller. Then you have an optional init routine declare with CTLP_ONLOAD(label, version, info).
+This init routine receives controller onload profile as selected by DispatchOnLoad("profile"). The init routine may create
+a plugin context that is later one presented to every plugin API this for both LUA and native C ones. Then each:
+
+ * C API declare with CTLP_CAPI (MyCFunction, label, argsJ, queryJ, context) {your code}. Where:
+ * MyFunction is your function
+ * Label is a string containing the name of your function
+ * ArgsJ a json_object containing the argument attach the this control in JSON config file.
+ * context your C context as return from CTLP_ONLOAD
+
+ * Lua API declarewith TLP_LUA2C (MyLuaCFunction, label, argsJ, context) {your code}. Where
+ * MyLuaCFunction is both the name of your C function and Lua command
+ * Label your function name as a string
+ * Args the arguments passed this time from Lua script and not from Json config file.
+ * Query is not provided as LuaC function are called from a script and not directly from controller action list.
+
+Warning: Lua samples use with controller enforce strict mode. As a result every variables should be declare either as
+local or as global. Unfortunately "luac" is not smart enough to handle strict mode at build time and errors only appear
+at run time. Because of this strict mode every global variables (which include functions) should be prefix by '_'.
+Note that LUA require an initialisation value for every variables and declaring something like "local myvar" wont
+allocate "myvar"
+
+### Debugging Facilities
+
+Controler Lua script are check for syntax from CMAKE template with Luac. When needed to go further an developer API allow to
+execute directly Lua command within controller context from Rest/Ws (api=control, verb=lua_doscript). DoScript API takes two
+other optional arguments func=xxxx where xxxx is the function to execute within Lua script and args a JSON object to provide
+input parameter. When funcname is not given by default the controller try to execute middle filename doscript-xxxx-????.lua.
+
+When executed from controller Lua script may use any AppFw Apis as well as any L2C user defined commands in plugin.
+
+## Config Sample
+
+Here after a simple configuration sample.
+
+```
+{
+ "$schema": "ToBeDone",
+ "metadata": {
+ "label": "sample-audio-control",
+ "info": "Provide Default Audio Policy for Multimedia, Navigation and Emergency",
+ "version": "1.0"
+ },
+ "onload": [{
+ "label": "onload-default",
+ "info": "onload initialisation config",
+ "plugin": {
+ "label" : "MyPlug",
+ "sharelib": "ctl-audio-plugin-sample.ctlso",
+ "lua2c": ["Lua2cHelloWorld1", "Lua2cHelloWorld2"]
+ },
+ "require": ["intel-hda", "jabra-usb", "scarlett-usb"],
+ "actions": [
+ {
+ "label": "onload-sample-cb",
+ "info": "Call control sharelib install entrypoint",
+ "callback": "SamplePolicyInit",
+ "args": {
+ "arg1": "first_arg",
+ "nextarg": "second arg value"
+ }
+ }, {
+ "label": "onload-sample-api",
+ "info": "Assert AlsaCore Presence",
+ "api": "alsacore",
+ "verb": "ping",
+ "args": "test"
+ }, {
+ "label": "onload-hal-lua",
+ "info": "Load avaliable HALs",
+ "lua": "Audio_Init_Hal"
+ }
+ ]
+ }],
+ "controls":
+ [
+ {
+ "label": "multimedia",
+ "permissions": "urn:AGL:permission:audio:public:mutimedia",
+ "actions": {
+ "label": "multimedia-control-lua",
+ "info": "Call Lua Script function Test_Lua_Engin",
+ "lua": "Audio_Set_Multimedia"
+ }
+ }, {
+ "label": "navigation",
+ "permissions": "urn:AGL:permission:audio:public:navigation",
+ "actions": {
+ "label": "navigation-control-lua",
+ "info": "Call Lua Script to set Navigation",
+ "lua": "Audio_Set_Navigation"
+ }
+ }, {
+ "label": "emergency",
+ "permissions": "urn:AGL:permission:audio:public:emergency",
+ "actions": {
+ "label": "emergency-control-ucm",
+ "lua": "Audio_Set_Emergency"
+ }
+ }, {
+ "label": "multi-step-sample",
+ "info" : "all actions must succeed for control to be accepted",
+ "actions": [{
+ "label": "multimedia-control-cb",
+ "info": "Call Sharelib Sample Callback",
+ "callback": "sampleControlNavigation",
+ "args": {
+ "arg1": "snoopy",
+ "arg2": "toto"
+ }
+ }, {
+ "label": "navigation-control-ucm",
+ "api": "alsacore",
+ "verb": "ping",
+ "args": {
+ "test": "navigation"
+ }
+ }, {
+ "label": "navigation-control-lua",
+ "info": "Call Lua Script to set Navigation",
+ "lua": "Audio_Set_Navigation"
+ }]
+ }
+ ],
+ "events":
+ [
+ {
+ "label": "Vehicle-Speed",
+ "info": "Action when Vehicule speed change",
+ "actions": [
+ {
+ "label": "speed-action-1",
+ "callback": "Blink-when-over-130",
+ "args": {
+ "speed": 130
+ "blink-speed": 1000
+ }
+ }, {
+ "label": "Adjust-Volume",
+ "lua": "Adjust_Volume_To_Speed",
+ }
+ ]
+ },
+ {
+ "label": "Reverse-Engage",
+ "info": "When Reverse Gear is Engage",
+ "actions": [
+ {
+ "label": "Display-Rear-Camera",
+ "callback": "Display-Rear-Camera",
+ }, {
+ "label": "Prevent-Phone-Call",
+ "api" : "phone",
+ "verb" : "status",
+ "args": {
+ "call-accepted": false
+ }
+ }
+ ]
+ },
+ {
+ "label": "Neutral-Engage",
+ "info": "When Reverse Neutral is Engage",
+ "actions": [
+ {
+ "label": "Authorize-Video",
+ "api" : "video",
+ "verb" : "status",
+ "args": {
+ "tv-accepted": true
+ }
+ }
+ ]
+ }
+ ]
+}
+
+```
+
diff --git a/a.out b/a.out
new file mode 100755
index 0000000..d18064f
--- /dev/null
+++ b/a.out
Binary files differ
diff --git a/ctl-apidef.h b/ctl-apidef.h
new file mode 100644
index 0000000..68f9725
--- /dev/null
+++ b/ctl-apidef.h
@@ -0,0 +1,115 @@
+
+static const char _afb_description_v2_control[] =
+ "{\"openapi\":\"3.0.0\",\"$schema\":\"http:iot.bzh/download/openapi/schem"
+ "a-3.0/default-schema.json\",\"info\":{\"description\":\"\",\"title\":\"c"
+ "ontroler\",\"version\":\"1.0\",\"x-binding-c-generator\":{\"api\":\"cont"
+ "rol\",\"version\":2,\"prefix\":\"ctlapi_\",\"postfix\":\"\",\"start\":nu"
+ "ll,\"onevent\":\"DispatchOneEvent\",\"init\":\"CtlBindingInit\",\"scope\""
+ ":\"\",\"private\":false}},\"servers\":[{\"url\":\"ws://{host}:{port}/api"
+ "/polctl\",\"description\":\"Unicens2 API.\",\"variables\":{\"host\":{\"d"
+ "efault\":\"localhost\"},\"port\":{\"default\":\"1234\"}},\"x-afb-events\""
+ ":[{\"$ref\":\"#/components/schemas/afb-event\"}]}],\"components\":{\"sch"
+ "emas\":{\"afb-reply\":{\"$ref\":\"#/components/schemas/afb-reply-v2\"},\""
+ "afb-event\":{\"$ref\":\"#/components/schemas/afb-event-v2\"},\"afb-reply"
+ "-v2\":{\"title\":\"Generic response.\",\"type\":\"object\",\"required\":"
+ "[\"jtype\",\"request\"],\"properties\":{\"jtype\":{\"type\":\"string\",\""
+ "const\":\"afb-reply\"},\"request\":{\"type\":\"object\",\"required\":[\""
+ "status\"],\"properties\":{\"status\":{\"type\":\"string\"},\"info\":{\"t"
+ "ype\":\"string\"},\"token\":{\"type\":\"string\"},\"uuid\":{\"type\":\"s"
+ "tring\"},\"reqid\":{\"type\":\"string\"}}},\"response\":{\"type\":\"obje"
+ "ct\"}}},\"afb-event-v2\":{\"type\":\"object\",\"required\":[\"jtype\",\""
+ "event\"],\"properties\":{\"jtype\":{\"type\":\"string\",\"const\":\"afb-"
+ "event\"},\"event\":{\"type\":\"string\"},\"data\":{\"type\":\"object\"}}"
+ "}},\"x-permissions\":{\"monitor\":{\"permission\":\"urn:AGL:permission:a"
+ "udio:public:monitor\"},\"multimedia\":{\"permission\":\"urn:AGL:permissi"
+ "on:audio:public:monitor\"},\"navigation\":{\"permission\":\"urn:AGL:perm"
+ "ission:audio:public:monitor\"},\"emergency\":{\"permission\":\"urn:AGL:p"
+ "ermission:audio:public:emergency\"}},\"responses\":{\"200\":{\"descripti"
+ "on\":\"A complex object array response\",\"content\":{\"application/json"
+ "\":{\"schema\":{\"$ref\":\"#/components/schemas/afb-reply\"}}}}}},\"path"
+ "s\":{\"/monitor\":{\"description\":\"Subcribe Audio Agent Policy Control"
+ " End\",\"get\":{\"x-permissions\":{\"$ref\":\"#/components/x-permissions"
+ "/monitor\"},\"parameters\":[{\"in\":\"query\",\"name\":\"event_patern\","
+ "\"required\":true,\"schema\":{\"type\":\"string\"}}],\"responses\":{\"20"
+ "0\":{\"$ref\":\"#/components/responses/200\"}}}},\"/dispatch\":{\"descri"
+ "ption\":\"Request Access to Navigation Audio Channel.\",\"get\":{\"x-per"
+ "missions\":{\"$ref\":\"#/components/x-permissions/navigation\"},\"parame"
+ "ters\":[{\"in\":\"query\",\"name\":\"zone\",\"required\":false,\"schema\""
+ ":{\"type\":\"string\"}}],\"responses\":{\"200\":{\"$ref\":\"#/components"
+ "/responses/200\"}}}},\"/lua_docall\":{\"description\":\"Execute LUA stri"
+ "ng script.\",\"get\":{\"x-permissions\":{\"$ref\":\"#/components/x-permi"
+ "ssions/navigation\"},\"parameters\":[{\"in\":\"query\",\"name\":\"func\""
+ ",\"required\":true,\"schema\":{\"type\":\"string\"}},{\"in\":\"query\",\""
+ "name\":\"args\",\"required\":false,\"schema\":{\"type\":\"array\"}}],\"r"
+ "esponses\":{\"200\":{\"$ref\":\"#/components/responses/200\"}}}},\"/lua_"
+ "dostring\":{\"description\":\"Execute LUA string script.\",\"get\":{\"x-"
+ "permissions\":{\"$ref\":\"#/components/x-permissions/navigation\"},\"par"
+ "ameters\":[{\"in\":\"query\",\"required\":true,\"schema\":{\"type\":\"st"
+ "ring\"}}],\"responses\":{\"200\":{\"$ref\":\"#/components/responses/200\""
+ "}}}},\"/lua_doscript\":{\"description\":\"Execute LUA string script.\",\""
+ "get\":{\"x-permissions\":{\"$ref\":\"#/components/x-permissions/navigati"
+ "on\"},\"parameters\":[{\"in\":\"query\",\"name\":\"filename\",\"required"
+ "\":true,\"schema\":{\"type\":\"string\"}}],\"responses\":{\"200\":{\"$re"
+ "f\":\"#/components/responses/200\"}}}}}}"
+;
+
+static const struct afb_auth _afb_auths_v2_control[] = {
+ { .type = afb_auth_Permission, .text = "urn:AGL:permission:audio:public:monitor" }
+};
+
+ void ctlapi_monitor(struct afb_req req);
+ void ctlapi_dispatch(struct afb_req req);
+ void ctlapi_lua_docall(struct afb_req req);
+ void ctlapi_lua_dostring(struct afb_req req);
+ void ctlapi_lua_doscript(struct afb_req req);
+
+static const struct afb_verb_v2 _afb_verbs_v2_control[] = {
+ {
+ .verb = "monitor",
+ .callback = ctlapi_monitor,
+ .auth = &_afb_auths_v2_control[0],
+ .info = NULL,
+ .session = AFB_SESSION_NONE_V2
+ },
+ {
+ .verb = "dispatch",
+ .callback = ctlapi_dispatch,
+ .auth = &_afb_auths_v2_control[0],
+ .info = NULL,
+ .session = AFB_SESSION_NONE_V2
+ },
+ {
+ .verb = "lua_docall",
+ .callback = ctlapi_lua_docall,
+ .auth = &_afb_auths_v2_control[0],
+ .info = NULL,
+ .session = AFB_SESSION_NONE_V2
+ },
+ {
+ .verb = "lua_dostring",
+ .callback = ctlapi_lua_dostring,
+ .auth = &_afb_auths_v2_control[0],
+ .info = NULL,
+ .session = AFB_SESSION_NONE_V2
+ },
+ {
+ .verb = "lua_doscript",
+ .callback = ctlapi_lua_doscript,
+ .auth = &_afb_auths_v2_control[0],
+ .info = NULL,
+ .session = AFB_SESSION_NONE_V2
+ },
+ { .verb = NULL }
+};
+
+const struct afb_binding_v2 afbBindingV2 = {
+ .api = "control",
+ .specification = _afb_description_v2_control,
+ .info = NULL,
+ .verbs = _afb_verbs_v2_control,
+ .preinit = NULL,
+ .init = CtlBindingInit,
+ .onevent = DispatchOneEvent,
+ .noconcurrency = 0
+};
+
diff --git a/ctl-apidef.json b/ctl-apidef.json
new file mode 100644
index 0000000..c35cbc0
--- /dev/null
+++ b/ctl-apidef.json
@@ -0,0 +1,250 @@
+{
+ "openapi": "3.0.0",
+ "$schema": "http:iot.bzh/download/openapi/schema-3.0/default-schema.json",
+ "info": {
+ "description": "",
+ "title": "controler",
+ "version": "1.0",
+ "x-binding-c-generator": {
+ "api": "control",
+ "version": 2,
+ "prefix": "ctlapi_",
+ "postfix": "",
+ "start": null,
+ "onevent": "DispatchOneEvent",
+ "init": "CtlBindingInit",
+ "scope": "",
+ "private": false
+ }
+ },
+ "servers": [
+ {
+ "url": "ws://{host}:{port}/api/polctl",
+ "description": "Unicens2 API.",
+ "variables": {
+ "host": {
+ "default": "localhost"
+ },
+ "port": {
+ "default": "1234"
+ }
+ },
+ "x-afb-events": [
+ {
+ "$ref": "#/components/schemas/afb-event"
+ }
+ ]
+ }
+ ],
+ "components": {
+ "schemas": {
+ "afb-reply": {
+ "$ref": "#/components/schemas/afb-reply-v2"
+ },
+ "afb-event": {
+ "$ref": "#/components/schemas/afb-event-v2"
+ },
+ "afb-reply-v2": {
+ "title": "Generic response.",
+ "type": "object",
+ "required": ["jtype", "request"],
+ "properties": {
+ "jtype": {
+ "type": "string",
+ "const": "afb-reply"
+ },
+ "request": {
+ "type": "object",
+ "required": ["status"],
+ "properties": {
+ "status": {
+ "type": "string"
+ },
+ "info": {
+ "type": "string"
+ },
+ "token": {
+ "type": "string"
+ },
+ "uuid": {
+ "type": "string"
+ },
+ "reqid": {
+ "type": "string"
+ }
+ }
+ },
+ "response": {
+ "type": "object"
+ }
+ }
+ },
+ "afb-event-v2": {
+ "type": "object",
+ "required": ["jtype", "event"],
+ "properties": {
+ "jtype": {
+ "type": "string",
+ "const": "afb-event"
+ },
+ "event": {
+ "type": "string"
+ },
+ "data": {
+ "type": "object"
+ }
+ }
+ }
+ },
+ "x-permissions": {
+ "monitor": {
+ "permission": "urn:AGL:permission:audio:public:monitor"
+ },
+ "multimedia": {
+ "permission": "urn:AGL:permission:audio:public:monitor"
+ },
+ "navigation": {
+ "permission": "urn:AGL:permission:audio:public:monitor"
+ },
+ "emergency": {
+ "permission": "urn:AGL:permission:audio:public:emergency"
+ }
+ },
+ "responses": {
+ "200": {
+ "description": "A complex object array response",
+ "content": {
+ "application/json": {
+ "schema": {
+ "$ref": "#/components/schemas/afb-reply"
+ }
+ }
+ }
+ }
+ }
+ },
+ "paths": {
+ "/monitor": {
+ "description": "Subcribe Audio Agent Policy Control End",
+ "get": {
+ "x-permissions": {
+ "$ref": "#/components/x-permissions/monitor"
+ },
+ "parameters": [
+ {
+ "in": "query",
+ "name": "event_patern",
+ "required": true,
+ "schema": {
+ "type": "string"
+ }
+ }
+ ],
+ "responses": {
+ "200": {
+ "$ref": "#/components/responses/200"
+ }
+ }
+ }
+ },
+ "/dispatch": {
+ "description": "Request Access to Navigation Audio Channel.",
+ "get": {
+ "x-permissions": {
+ "$ref": "#/components/x-permissions/navigation"
+ },
+ "parameters": [
+ {
+ "in": "query",
+ "name": "zone",
+ "required": false,
+ "schema": {
+ "type": "string"
+ }
+ }
+ ],
+ "responses": {
+ "200": {
+ "$ref": "#/components/responses/200"
+ }
+ }
+ }
+ },
+ "/lua_docall": {
+ "description": "Execute LUA string script.",
+ "get": {
+ "x-permissions": {
+ "$ref": "#/components/x-permissions/navigation"
+ },
+ "parameters": [
+ {
+ "in": "query",
+ "name": "func",
+ "required": true,
+ "schema": {
+ "type": "string"
+ }
+ },
+ {
+ "in": "query",
+ "name": "args",
+ "required": false,
+ "schema": {
+ "type": "array"
+ }
+ }
+ ],
+ "responses": {
+ "200": {
+ "$ref": "#/components/responses/200"
+ }
+ }
+ }
+ },
+ "/lua_dostring": {
+ "description": "Execute LUA string script.",
+ "get": {
+ "x-permissions": {
+ "$ref": "#/components/x-permissions/navigation"
+ },
+ "parameters": [
+ {
+ "in": "query",
+ "required": true,
+ "schema": {
+ "type": "string"
+ }
+ }
+ ],
+ "responses": {
+ "200": {
+ "$ref": "#/components/responses/200"
+ }
+ }
+ }
+ },
+ "/lua_doscript": {
+ "description": "Execute LUA string script.",
+ "get": {
+ "x-permissions": {
+ "$ref": "#/components/x-permissions/navigation"
+ },
+ "parameters": [
+ {
+ "in": "query",
+ "name": "filename",
+ "required": true,
+ "schema": {
+ "type": "string"
+ }
+ }
+ ],
+ "responses": {
+ "200": {
+ "$ref": "#/components/responses/200"
+ }
+ }
+ }
+ }
+ }
+}
diff --git a/ctl-binding.c b/ctl-binding.c
new file mode 100644
index 0000000..8771fc0
--- /dev/null
+++ b/ctl-binding.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#include "audio-common.h"
+#include "ctl-binding.h"
+
+
+
+// Include Binding Stub generated from Json OpenAPI
+#include "ctl-apidef.h"
+
+
+PUBLIC void ctlapi_monitor (afb_req request) {
+
+ // subscribe Client to event
+ int err = afb_req_subscribe(request, TimerEvtGet());
+ if (err != 0) {
+ afb_req_fail_f(request, "register-event", "Fail to subscribe binder event");
+ goto OnErrorExit;
+ }
+
+ afb_req_success(request, NULL, NULL);
+
+ OnErrorExit:
+ return;
+}
+
+// Create Binding Event at Init
+PUBLIC int CtlBindingInit () {
+
+ int errcount=0;
+
+ errcount += TimerEvtInit();
+ errcount += DispatchInit();
+#ifdef CONTROL_SUPPORT_LUA
+ errcount += LuaLibInit();
+#endif
+
+ // now that everything is initialised execute the onload action
+ if (!errcount)
+ errcount += DispatchOnLoad(CONTROL_ONLOAD_DEFAULT);
+
+ AFB_DEBUG ("Audio Policy Control Binding Done errcount=%d", errcount);
+ return errcount;
+}
+
diff --git a/ctl-binding.h b/ctl-binding.h
new file mode 100644
index 0000000..a1c7ef2
--- /dev/null
+++ b/ctl-binding.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef CONTROLLER_BINDING_INCLUDE
+#define CONTROLLER_BINDING_INCLUDE
+
+#define AFB_BINDING_VERSION 2
+#include <afb/afb-binding.h>
+#include <json-c/json.h>
+#include <filescan-utils.h>
+#include <wrap-json.h>
+#include <systemd/sd-event.h>
+
+
+#ifdef CONTROL_SUPPORT_LUA
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+#endif
+
+#ifndef PUBLIC
+ #define PUBLIC
+#endif
+#define STATIC static
+
+#ifndef UNUSED_ARG
+#define UNUSED_ARG(x) UNUSED_ ## x __attribute__((__unused__))
+#define UNUSED_FUNCTION(x) __attribute__((__unused__)) UNUSED_ ## x
+#endif
+
+// polctl-binding.c
+PUBLIC int CtlBindingInit ();
+
+// ctl-timerevt.c
+// ----------------------
+typedef int (*timerCallbackT)(void *context);
+
+typedef struct TimerHandleS {
+ int count;
+ int delay;
+ const char*label;
+ void *context;
+ timerCallbackT callback;
+ sd_event_source *evtSource;
+} TimerHandleT;
+
+PUBLIC int TimerEvtInit (void);
+PUBLIC afb_event TimerEvtGet(void);
+PUBLIC void TimerEvtStart(TimerHandleT *timerHandle, timerCallbackT callback, void *context);
+PUBLIC void TimerEvtStop(TimerHandleT *timerHandle);
+
+// ctl-policy
+// -----------
+
+typedef enum {
+ CTL_MODE_NONE=0,
+ CTL_MODE_API,
+ CTL_MODE_CB,
+ CTL_MODE_LUA,
+} CtlRequestModeT;
+
+
+typedef enum {
+ CTL_SOURCE_CLOSE=-1,
+ CTL_SOURCE_UNKNOWN=0,
+ CTL_SOURCE_ONLOAD=1,
+ CTL_SOURCE_OPEN=2,
+ CTL_SOURCE_EVENT=3,
+} DispatchSourceT;
+
+typedef struct DispatchActionS{
+ const char *info;
+ const char* label;
+ CtlRequestModeT mode;
+ const char* api;
+ const char* call;
+ json_object *argsJ;
+ int timeout;
+ int (*actionCB)(DispatchSourceT source, const char*label, json_object *argsJ, json_object *queryJ, void *context);
+} DispatchActionT;
+
+typedef int (*Lua2cFunctionT)(char *funcname, json_object *argsJ, void*context);
+
+PUBLIC int DispatchInit(void);
+PUBLIC int DispatchOnLoad(const char *onLoadLabel);
+PUBLIC void DispatchOneEvent(const char *evtLabel, json_object *eventJ);
+PUBLIC int DispatchOneL2c(lua_State* luaState, char *funcname, Lua2cFunctionT callback);
+PUBLIC void ctlapi_dispatch (afb_req request);
+
+#ifdef CONTROL_SUPPORT_LUA
+// ctl-lua.c
+typedef int (*Lua2cWrapperT) (lua_State* luaState, char *funcname, Lua2cFunctionT callback);
+
+#define CTLP_LUA2C(FuncName, label,argsJ, context) static int FuncName(char*label,json_object*argsJ, void*context);\
+ int lua2c_ ## FuncName(lua_State* luaState){return((*Lua2cWrap)(luaState, MACRO_STR_VALUE(FuncName), FuncName));};\
+ static int FuncName(char* label, json_object* argsJ, void* context)
+
+typedef enum {
+ LUA_DOCALL,
+ LUA_DOSTRING,
+ LUA_DOSCRIPT,
+} LuaDoActionT;
+
+PUBLIC int LuaLibInit ();
+PUBLIC void LuaL2cNewLib(const char *label, luaL_Reg *l2cFunc, int count);
+PUBLIC int Lua2cWrapper(lua_State* luaState, char *funcname, Lua2cFunctionT callback, void *context);
+PUBLIC int LuaCallFunc (DispatchSourceT source, DispatchActionT *action, json_object *queryJ) ;
+PUBLIC void ctlapi_lua_docall (afb_req request);
+PUBLIC void ctlapi_lua_dostring (afb_req request);
+PUBLIC void ctlapi_lua_doscript (afb_req request);
+
+#else
+ typedef void* Lua2cWrapperT;
+#endif // CONTROL_SUPPORT_LUA
+
+
+// sharelib ctl-plugin*
+typedef struct {
+ long magic;
+ char *label;
+} CtlPluginMagicT;
+
+
+#define MACRO_STR_VALUE(arg) #arg
+#define CTLP_REGISTER(pluglabel) CtlPluginMagicT CtlPluginMagic={.magic=CTL_PLUGIN_MAGIC,.label=pluglabel}; struct afb_binding_data_v2; Lua2cWrapperT Lua2cWrap;
+#define CTLP_ONLOAD(label,version,info) void* CtlPluginOnload(char* label, char* version, char* info)
+#define CTLP_CAPI(funcname,source, label,argsJ, queryJ, context) int funcname(DispatchSourceT source, char* label, json_object* argsJ, json_object* queryJ, void* context)
+
+
+
+#endif // CONTROLLER_BINDING_INCLUDE
diff --git a/ctl-dispatch.c b/ctl-dispatch.c
new file mode 100644
index 0000000..1708204
--- /dev/null
+++ b/ctl-dispatch.c
@@ -0,0 +1,665 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, something express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Reference:
+ * Json load using json_unpack https://jansson.readthedocs.io/en/2.9/apiref.html#parsing-and-validating-values
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <dlfcn.h>
+
+#include "ctl-binding.h"
+
+typedef void*(*DispatchPluginInstallCbT)(const char* label, const char*version, const char*info);
+
+
+static afb_req NULL_AFBREQ = {};
+
+
+typedef struct {
+ const char* label;
+ const char *info;
+ DispatchActionT *actions;
+} DispatchHandleT;
+
+typedef struct {
+ const char *label;
+ const char *info;
+ void *context;
+ char *sharelib;
+ void *dlHandle;
+ luaL_Reg *l2cFunc;
+ int l2cCount;
+} DispatchPluginT;
+
+typedef struct {
+ const char* label;
+ const char *info;
+ const char *version;
+ DispatchPluginT *plugin;
+ DispatchHandleT **onloads;
+ DispatchHandleT **events;
+ DispatchHandleT **controls;
+} DispatchConfigT;
+
+// global config handle
+STATIC DispatchConfigT *configHandle = NULL;
+
+STATIC int DispatchControlToIndex(DispatchHandleT **controls, const char* controlLabel) {
+
+ for (int idx = 0; controls[idx]; idx++) {
+ if (!strcasecmp(controlLabel, controls[idx]->label)) return idx;
+ }
+ return -1;
+}
+
+STATIC int DispatchOneControl(DispatchSourceT source, DispatchHandleT **controls, const char* controlLabel, json_object *queryJ, afb_req request) {
+ int err;
+
+ if (!configHandle) {
+ AFB_ERROR("DISPATCH-CTL-API: (Hoops/Bug!!!) No Config Loaded");
+ goto OnErrorExit;
+ }
+
+ if (!configHandle->controls) {
+ AFB_ERROR("DISPATCH-CTL-API: No Control Action in Json config label=%s version=%s", configHandle->label, configHandle->version);
+ goto OnErrorExit;
+ }
+
+ int index = DispatchControlToIndex(controls, controlLabel);
+ if (index < 0 || !controls[index]->actions) {
+ AFB_ERROR("DISPATCH-CTL-API:NotFound/Error label=%s in Json Control Config File", controlLabel);
+ goto OnErrorExit;
+ }
+
+ // Fulup (Bug/Feature) in current version is unique to every onload profile
+ if (configHandle->plugin && configHandle->plugin->l2cCount) {
+ LuaL2cNewLib (configHandle->plugin->label, configHandle->plugin->l2cFunc, configHandle->plugin->l2cCount);
+ }
+
+ // loop on action for this control
+ DispatchActionT *actions = controls[index]->actions;
+ for (int idx = 0; actions[idx].label; idx++) {
+
+ switch (actions[idx].mode) {
+ case CTL_MODE_API:
+ {
+ json_object *returnJ;
+
+ // if query is empty increment usage count and pass args
+ if (!queryJ || json_object_get_type(queryJ) != json_type_object) {
+ json_object_get(actions[idx].argsJ);
+ queryJ= actions[idx].argsJ;
+ } else if (actions[idx].argsJ) {
+
+ // Merge queryJ and argsJ before sending request
+ if (json_object_get_type(actions[idx].argsJ) == json_type_object) {
+ json_object_object_foreach(actions[idx].argsJ, key, val) {
+ json_object_object_add(queryJ, key, val);
+ }
+ } else {
+ json_object_object_add(queryJ, "args", actions[idx].argsJ);
+ }
+ }
+
+ int err = afb_service_call_sync(actions[idx].api, actions[idx].call, queryJ, &returnJ);
+ if (err) {
+ static const char*format = "DispatchOneControl(Api) api=%s verb=%s args=%s";
+ if (afb_req_is_valid(request))afb_req_fail_f(request, "DISPATCH-CTL-MODE:API", format, actions[idx].label, actions[idx].api, actions[idx].call);
+ else AFB_ERROR(format, actions[idx].api, actions[idx].call, actions[idx].label);
+ goto OnErrorExit;
+ }
+ break;
+ }
+
+#ifdef CONTROL_SUPPORT_LUA
+ case CTL_MODE_LUA:
+ err = LuaCallFunc(source, &actions[idx], queryJ);
+ if (err) {
+ static const char*format = "DispatchOneControl(Lua) label=%s func=%s args=%s";
+ if (afb_req_is_valid(request)) afb_req_fail_f(request, "DISPATCH-CTL-MODE:Lua", format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ));
+ else AFB_ERROR(format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ));
+ goto OnErrorExit;
+ }
+ break;
+#endif
+
+ case CTL_MODE_CB:
+ err = (*actions[idx].actionCB) (source, actions[idx].label, actions[idx].argsJ, queryJ, configHandle->plugin->context);
+ if (err) {
+ static const char*format = "DispatchOneControl(Callback) label%s func=%s args=%s";
+ if (afb_req_is_valid(request)) afb_req_fail_f(request, "DISPATCH-CTL-MODE:Cb", format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ));
+ else AFB_ERROR(format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ));
+ goto OnErrorExit;
+ }
+ break;
+
+ default:
+ {
+ static const char*format = "DispatchOneControl(unknown) mode control=%s action=%s";
+ AFB_ERROR(format, controls[index]->label);
+ if (afb_req_is_valid(request))afb_req_fail_f(request, "DISPATCH-CTL-MODE:Unknown", format, controls[index]->label);
+ }
+ }
+ }
+
+ // everything when fine
+ if (afb_req_is_valid(request))afb_req_success(request, NULL, controls[index]->label);
+ return 0;
+
+OnErrorExit:
+ return -1;
+}
+
+
+// Event name is mapped on control label and executed as a standard control
+
+PUBLIC void DispatchOneEvent(const char *evtLabel, json_object *eventJ) {
+ DispatchHandleT **events = configHandle->events;
+
+ (void) DispatchOneControl(CTL_SOURCE_EVENT, events, evtLabel, eventJ, NULL_AFBREQ);
+}
+
+// Event name is mapped on control label and executed as a standard control
+
+PUBLIC int DispatchOnLoad(const char *onLoadLabel) {
+ DispatchHandleT **onloads = configHandle->onloads;
+
+ int err = DispatchOneControl(CTL_SOURCE_ONLOAD, onloads, onLoadLabel, NULL, NULL_AFBREQ);
+ return err;
+}
+
+PUBLIC void ctlapi_dispatch(afb_req request) {
+ DispatchHandleT **controls = configHandle->controls;
+ json_object *queryJ, *argsJ=NULL;
+ const char *target;
+ DispatchSourceT source= CTL_SOURCE_UNKNOWN;
+
+ queryJ = afb_req_json(request);
+ int err = wrap_json_unpack(queryJ, "{s:s, s?i s?o !}", "target", &target, "source", &source, "args", &argsJ);
+ if (err) {
+ afb_req_fail_f(request, "CTL-DISPTACH-INVALID", "missing target or args not a valid json object query=%s", json_object_get_string(queryJ));
+ goto OnErrorExit;
+ }
+
+ (void) DispatchOneControl(source, controls, target, argsJ, request);
+
+OnErrorExit:
+ return;
+}
+
+// Wrapper to Lua2c plugin command add context dans delegate to LuaWrapper
+PUBLIC int DispatchOneL2c(lua_State* luaState, char *funcname, Lua2cFunctionT callback) {
+#ifndef CONTROL_SUPPORT_LUA
+ AFB_ERROR("DISPATCH-ONE-L2C: LUA support not selected (cf:CONTROL_SUPPORT_LUA) in config.cmake");
+ return 1;
+#else
+ int err=Lua2cWrapper(luaState, funcname, callback, configHandle->plugin->context);
+ return err;
+#endif
+}
+
+
+// List Avaliable Configuration Files
+
+PUBLIC void ctlapi_config(struct afb_req request) {
+ json_object*tmpJ;
+ char *dirList;
+
+
+ json_object* queryJ = afb_req_json(request);
+ if (queryJ && json_object_object_get_ex(queryJ, "cfgpath", &tmpJ)) {
+ dirList = strdup(json_object_get_string(tmpJ));
+ } else {
+
+ dirList = getenv("CONTROL_CONFIG_PATH");
+ if (!dirList) dirList = strdup(CONTROL_CONFIG_PATH);
+ AFB_NOTICE("CONFIG-MISSING: use default CONTROL_CONFIG_PATH=%s", CONTROL_CONFIG_PATH);
+ }
+
+ // get list of config file
+ struct json_object *responseJ = ScanForConfig(dirList, CTL_SCAN_RECURSIVE, "onload", "json");
+
+ if (json_object_array_length(responseJ) == 0) {
+ afb_req_fail(request, "CONFIGPATH:EMPTY", "No Config Found in CONTROL_CONFIG_PATH");
+ } else {
+ afb_req_success(request, responseJ, NULL);
+ }
+
+ return;
+}
+
+// unpack individual action object
+
+STATIC int DispatchLoadOneAction(DispatchConfigT *controlConfig, json_object *actionJ, DispatchActionT *action) {
+ char *api = NULL, *verb = NULL, *callback = NULL, *lua = NULL;
+ int err, modeCount = 0;
+
+ err = wrap_json_unpack(actionJ, "{ss,s?s,s?s,s?s,s?s,s?s,s?o !}"
+ , "label", &action->label, "info", &action->info, "callback", &callback, "lua", &lua, "api", &api, "verb", &verb, "args", &action->argsJ);
+ if (err) {
+ AFB_ERROR("DISPATCH-LOAD-ACTION Missing something label|info|callback|lua|(api+verb)|args in %s", json_object_get_string(actionJ));
+ goto OnErrorExit;
+ }
+
+ if (lua) {
+ action->mode = CTL_MODE_LUA;
+ action->call = lua;
+ modeCount++;
+ }
+
+ if (api && verb) {
+ action->mode = CTL_MODE_API;
+ action->api = api;
+ action->call = verb;
+ modeCount++;
+ }
+
+ if (callback && controlConfig->plugin) {
+ action->mode = CTL_MODE_CB;
+ action->call = callback;
+ modeCount++;
+
+ action->actionCB = dlsym(controlConfig->plugin->dlHandle, callback);
+ if (!action->actionCB) {
+ AFB_ERROR("DISPATCH-LOAD-ACTION fail to find calbback=%s in %s", callback, controlConfig->plugin->sharelib);
+ goto OnErrorExit;
+ }
+ }
+
+ // make sure at least one mode is selected
+ if (modeCount == 0) {
+ AFB_ERROR("DISPATCH-LOAD-ACTION No Action Selected lua|callback|(api+verb) in %s", json_object_get_string(actionJ));
+ goto OnErrorExit;
+ }
+
+ if (modeCount > 1) {
+ AFB_ERROR("DISPATCH-LOAD-ACTION:ToMany arguments lua|callback|(api+verb) in %s", json_object_get_string(actionJ));
+ goto OnErrorExit;
+ }
+ return 0;
+
+OnErrorExit:
+ return -1;
+};
+
+STATIC DispatchActionT *DispatchLoadActions(DispatchConfigT *controlConfig, json_object *actionsJ) {
+ int err;
+ DispatchActionT *actions;
+
+ // action array is close with a nullvalue;
+ if (json_object_get_type(actionsJ) == json_type_array) {
+ int count = json_object_array_length(actionsJ);
+ actions = calloc(count + 1, sizeof (DispatchActionT));
+
+ for (int idx = 0; idx < count; idx++) {
+ json_object *actionJ = json_object_array_get_idx(actionsJ, idx);
+ err = DispatchLoadOneAction(controlConfig, actionJ, &actions[idx]);
+ if (err) goto OnErrorExit;
+ }
+
+ } else {
+ actions = calloc(2, sizeof (DispatchActionT));
+ err = DispatchLoadOneAction(controlConfig, actionsJ, &actions[0]);
+ if (err) goto OnErrorExit;
+ }
+
+ return actions;
+
+OnErrorExit:
+ return NULL;
+
+}
+
+STATIC DispatchHandleT *DispatchLoadControl(DispatchConfigT *controlConfig, json_object *controlJ) {
+ json_object *actionsJ, *permissionsJ;
+ int err;
+
+ DispatchHandleT *dispatchHandle = calloc(1, sizeof (DispatchHandleT));
+ err = wrap_json_unpack(controlJ, "{ss,s?s,s?o, so !}", "label", &dispatchHandle->label, "info", &dispatchHandle->info
+ , "permissions", &permissionsJ, "actions", &actionsJ);
+ if (err) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:CONTROL Missing something label|[info]|actions in %s", json_object_get_string(controlJ));
+ goto OnErrorExit;
+ }
+
+ dispatchHandle->actions = DispatchLoadActions(controlConfig, actionsJ);
+ if (!dispatchHandle->actions) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:CONTROL Error when parsing actions %s", dispatchHandle->label);
+ goto OnErrorExit;
+ }
+ return dispatchHandle;
+
+OnErrorExit:
+ return NULL;
+}
+
+STATIC DispatchHandleT *DispatchLoadOnload(DispatchConfigT *controlConfig, json_object *onloadJ) {
+ json_object *actionsJ = NULL, *requireJ = NULL, *pluginJ = NULL;
+ int err;
+
+ DispatchHandleT *dispatchHandle = calloc(1, sizeof (DispatchHandleT));
+ err = wrap_json_unpack(onloadJ, "{ss,s?s, s?o,s?o,s?o !}",
+ "label", &dispatchHandle->label, "info", &dispatchHandle->info, "plugin", &pluginJ, "require", &requireJ, "actions", &actionsJ);
+ if (err) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:ONLOAD Missing something label|[info]|[plugin]|[actions] in %s", json_object_get_string(onloadJ));
+ goto OnErrorExit;
+ }
+
+ // best effort to initialise everything before starting
+ if (requireJ) {
+
+ void DispatchRequireOneApi(json_object * bindindJ) {
+ const char* requireBinding = json_object_get_string(bindindJ);
+ err = afb_daemon_require_api(requireBinding, 1);
+ if (err) {
+ AFB_WARNING("DISPATCH-LOAD-CONFIG:REQUIRE Fail to get=%s", requireBinding);
+ }
+ }
+
+ if (json_object_get_type(requireJ) == json_type_array) {
+ for (int idx = 0; idx < json_object_array_length(requireJ); idx++) {
+ DispatchRequireOneApi(json_object_array_get_idx(requireJ, idx));
+ }
+ } else {
+ DispatchRequireOneApi(requireJ);
+ }
+ }
+
+ if (pluginJ) {
+ json_object *lua2csJ = NULL;
+ DispatchPluginT *dPlugin= calloc(1, sizeof(DispatchPluginT));
+ controlConfig->plugin = dPlugin;
+ const char*ldSearchPath=NULL;
+
+ err = wrap_json_unpack(pluginJ, "{ss,s?s,s?s,ss,s?o!}",
+ "label", &dPlugin->label, "info", &dPlugin->info, "ldpath", &ldSearchPath, "sharelib", &dPlugin->sharelib, "lua2c", &lua2csJ);
+ if (err) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:ONLOAD Plugin missing label|[info]|sharelib|[lua2c] in %s", json_object_get_string(onloadJ));
+ goto OnErrorExit;
+ }
+
+ // if search path not in Json config file, then try default
+ if (!ldSearchPath) ldSearchPath=CONTROL_PLUGIN_PATH;
+
+ // search for default policy config file
+ json_object *pluginPathJ = ScanForConfig(ldSearchPath, CTL_SCAN_RECURSIVE, dPlugin->sharelib, NULL);
+ if (!pluginPathJ || json_object_array_length(pluginPathJ) == 0) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:PLUGIN Missing plugin=%s in path=%s", dPlugin->sharelib, ldSearchPath);
+ goto OnErrorExit;
+ }
+
+ char *filename;
+ char*fullpath;
+ err = wrap_json_unpack(json_object_array_get_idx(pluginPathJ, 0), "{s:s, s:s !}", "fullpath", &fullpath, "filename", &filename);
+ if (err) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:PLUGIN HOOPs invalid plugin file path = %s", json_object_get_string(pluginPathJ));
+ goto OnErrorExit;
+ }
+
+ if (json_object_array_length(pluginPathJ) > 1) {
+ AFB_WARNING("DISPATCH-LOAD-CONFIG:PLUGIN plugin multiple instances in searchpath will use %s/%s", fullpath, filename);
+ }
+
+ char pluginpath[CONTROL_MAXPATH_LEN];
+ strncpy(pluginpath, fullpath, sizeof (pluginpath));
+ strncat(pluginpath, "/", sizeof (pluginpath));
+ strncat(pluginpath, filename, sizeof (pluginpath));
+ dPlugin->dlHandle = dlopen(pluginpath, RTLD_NOW);
+ if (!dPlugin->dlHandle) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:PLUGIN Fail to load pluginpath=%s err= %s", pluginpath, dlerror());
+ goto OnErrorExit;
+ }
+
+ CtlPluginMagicT *ctlPluginMagic = (CtlPluginMagicT*) dlsym(dPlugin->dlHandle, "CtlPluginMagic");
+ if (!ctlPluginMagic || ctlPluginMagic->magic != CTL_PLUGIN_MAGIC) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:Plugin symbol'CtlPluginMagic' missing or != CTL_PLUGIN_MAGIC plugin=%s", pluginpath);
+ goto OnErrorExit;
+ } else {
+ AFB_NOTICE("DISPATCH-LOAD-CONFIG:Plugin %s successfully registered", ctlPluginMagic->label);
+ }
+
+ // Jose hack to make verbosity visible from sharelib
+ struct afb_binding_data_v2 *afbHidenData = dlsym(dPlugin->dlHandle, "afbBindingV2data");
+ if (afbHidenData) *afbHidenData = afbBindingV2data;
+
+ // Push lua2cWrapper @ into plugin
+ Lua2cWrapperT *lua2cInPlug = dlsym(dPlugin->dlHandle, "Lua2cWrap");
+#ifndef CONTROL_SUPPORT_LUA
+ if (lua2cInPlug) *lua2cInPlug = NULL;
+#else
+ // Lua2cWrapper is part of binder and not expose to dynamic link
+ if (lua2cInPlug) *lua2cInPlug = DispatchOneL2c;
+
+ {
+ int Lua2cAddOne(luaL_Reg *l2cFunc, const char* l2cName, int index) {
+ char funcName[CONTROL_MAXPATH_LEN];
+ strncpy(funcName, "lua2c_", sizeof(funcName));
+ strncat(funcName, l2cName, sizeof(funcName));
+
+ Lua2cFunctionT l2cFunction= (Lua2cFunctionT)dlsym(dPlugin->dlHandle, funcName);
+ if (!l2cFunction) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:Plugin symbol'%s' missing err=%s", funcName, dlerror());
+ return 1;
+ }
+ l2cFunc[index].func=(void*)l2cFunction;
+ l2cFunc[index].name=strdup(l2cName);
+
+ return 0;
+ }
+
+ int errCount = 0;
+ luaL_Reg *l2cFunc=NULL;
+ int count=0;
+
+ // look on l2c command and push them to LUA
+ if (json_object_get_type(lua2csJ) == json_type_array) {
+ int length = json_object_array_length(lua2csJ);
+ l2cFunc = calloc(length + 1, sizeof (luaL_Reg));
+ for (count=0; count < length; count++) {
+ int err;
+ const char *l2cName = json_object_get_string(json_object_array_get_idx(lua2csJ, count));
+ err = Lua2cAddOne(l2cFunc, l2cName, count);
+ if (err) errCount++;
+ }
+ } else {
+ l2cFunc = calloc(2, sizeof (luaL_Reg));
+ const char *l2cName = json_object_get_string(lua2csJ);
+ errCount = Lua2cAddOne(l2cFunc, l2cName, 0);
+ count=1;
+ }
+ if (errCount) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:Plugin %d symbols not found in plugin='%s'", errCount, pluginpath);
+ goto OnErrorExit;
+ } else {
+ dPlugin->l2cFunc= l2cFunc;
+ dPlugin->l2cCount= count;
+ }
+ }
+#endif
+ DispatchPluginInstallCbT ctlPluginOnload = dlsym(dPlugin->dlHandle, "CtlPluginOnload");
+ if (ctlPluginOnload) {
+ dPlugin->context = (*ctlPluginOnload) (controlConfig->label, controlConfig->version, controlConfig->info);
+ }
+ }
+
+ dispatchHandle->actions = DispatchLoadActions(controlConfig, actionsJ);
+ if (!dispatchHandle->actions) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:ONLOAD Error when parsing actions %s", dispatchHandle->label);
+ goto OnErrorExit;
+ }
+ return dispatchHandle;
+
+OnErrorExit:
+ return NULL;
+}
+
+STATIC DispatchConfigT *DispatchLoadConfig(const char* filepath) {
+ json_object *controlConfigJ, *ignoreJ;
+ int err;
+
+ // Load JSON file
+ controlConfigJ = json_object_from_file(filepath);
+ if (!controlConfigJ) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:JsonLoad invalid JSON %s ", filepath);
+ goto OnErrorExit;
+ }
+
+ AFB_INFO("DISPATCH-LOAD-CONFIG: loading config filepath=%s", filepath);
+
+ json_object *metadataJ = NULL, *onloadsJ = NULL, *controlsJ = NULL, *eventsJ = NULL;
+ err = wrap_json_unpack(controlConfigJ, "{s?o,so,s?o,s?o,s?o !}", "$schema", &ignoreJ, "metadata", &metadataJ, "onload", &onloadsJ, "controls", &controlsJ, "events", &eventsJ);
+ if (err) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG Missing something metadata|[onload]|[controls]|[events] in %s", json_object_get_string(controlConfigJ));
+ goto OnErrorExit;
+ }
+
+ DispatchConfigT *controlConfig = calloc(1, sizeof (DispatchConfigT));
+ if (metadataJ) {
+ err = wrap_json_unpack(metadataJ, "{ss,s?s,ss !}", "label", &controlConfig->label, "info", &controlConfig->info, "version", &controlConfig->version);
+ if (err) {
+ AFB_ERROR("DISPATCH-LOAD-CONFIG:METADATA Missing something label|version|[label] in %s", json_object_get_string(metadataJ));
+ goto OnErrorExit;
+ }
+ }
+
+ if (onloadsJ) {
+ DispatchHandleT *dispatchHandle;
+
+ if (json_object_get_type(onloadsJ) != json_type_array) {
+ controlConfig->onloads = (DispatchHandleT**) calloc(2, sizeof (void*));
+ dispatchHandle = DispatchLoadOnload(controlConfig, onloadsJ);
+ controlConfig->onloads[0] = dispatchHandle;
+ } else {
+ int length = json_object_array_length(onloadsJ);
+ controlConfig->onloads = (DispatchHandleT**) calloc(length + 1, sizeof (void*));
+
+ for (int jdx = 0; jdx < length; jdx++) {
+ json_object *onloadJ = json_object_array_get_idx(onloadsJ, jdx);
+ dispatchHandle = DispatchLoadOnload(controlConfig, onloadJ);
+ controlConfig->onloads[jdx] = dispatchHandle;
+ }
+ }
+ }
+
+ if (controlsJ) {
+ DispatchHandleT *dispatchHandle;
+
+ if (json_object_get_type(controlsJ) != json_type_array) {
+ controlConfig->controls = (DispatchHandleT**) calloc(2, sizeof (void*));
+ dispatchHandle = DispatchLoadControl(controlConfig, controlsJ);
+ controlConfig->controls[0] = dispatchHandle;
+ } else {
+ int length = json_object_array_length(controlsJ);
+ controlConfig->controls = (DispatchHandleT**) calloc(length + 1, sizeof (void*));
+
+ for (int jdx = 0; jdx < length; jdx++) {
+ json_object *controlJ = json_object_array_get_idx(controlsJ, jdx);
+ dispatchHandle = DispatchLoadControl(controlConfig, controlJ);
+ controlConfig->controls[jdx] = dispatchHandle;
+ }
+ }
+ }
+
+ if (eventsJ) {
+ DispatchHandleT *dispatchHandle;
+
+ if (json_object_get_type(eventsJ) != json_type_array) {
+ controlConfig->events = (DispatchHandleT**) calloc(2, sizeof (void*));
+ dispatchHandle = DispatchLoadControl(controlConfig, eventsJ);
+ controlConfig->events[0] = dispatchHandle;
+ } else {
+ int length = json_object_array_length(eventsJ);
+ controlConfig->events = (DispatchHandleT**) calloc(length + 1, sizeof (void*));
+
+ for (int jdx = 0; jdx < length; jdx++) {
+ json_object *eventJ = json_object_array_get_idx(eventsJ, jdx);
+ dispatchHandle = DispatchLoadControl(controlConfig, eventJ);
+ controlConfig->events[jdx] = dispatchHandle;
+ }
+ }
+ }
+
+ return controlConfig;
+
+OnErrorExit:
+ return NULL;
+}
+
+
+// Load default config file at init
+
+PUBLIC int DispatchInit() {
+ int index, err, luaLoaded = 0;
+ char controlFile [CONTROL_MAXPATH_LEN];
+
+ const char *dirList= getenv("CONTROL_CONFIG_PATH");
+ if (!dirList) dirList=CONTROL_CONFIG_PATH;
+
+ strncpy(controlFile, CONTROL_CONFIG_PRE "-", CONTROL_MAXPATH_LEN);
+ strncat(controlFile, GetBinderName(), CONTROL_MAXPATH_LEN);
+
+ // search for default dispatch config file
+ json_object* responseJ = ScanForConfig(dirList, CTL_SCAN_RECURSIVE, controlFile, "json");
+
+ // We load 1st file others are just warnings
+ for (index = 0; index < json_object_array_length(responseJ); index++) {
+ json_object *entryJ = json_object_array_get_idx(responseJ, index);
+
+ char *filename;
+ char*fullpath;
+ err = wrap_json_unpack(entryJ, "{s:s, s:s !}", "fullpath", &fullpath, "filename", &filename);
+ if (err) {
+ AFB_ERROR("DISPATCH-INIT HOOPs invalid JSON entry= %s", json_object_get_string(entryJ));
+ goto OnErrorExit;
+ }
+
+ if (index == 0) {
+ if (strcasestr(filename, controlFile)) {
+ char filepath[CONTROL_MAXPATH_LEN];
+ strncpy(filepath, fullpath, sizeof (filepath));
+ strncat(filepath, "/", sizeof (filepath));
+ strncat(filepath, filename, sizeof (filepath));
+ configHandle = DispatchLoadConfig(filepath);
+ if (!configHandle) {
+ AFB_ERROR("DISPATCH-INIT:ERROR Fail loading [%s]", filepath);
+ goto OnErrorExit;
+ }
+ luaLoaded = 1;
+ break;
+ }
+ } else {
+ AFB_WARNING("DISPATCH-INIT:WARNING Secondary Control Config Ignored %s/%s", fullpath, filename);
+ }
+ }
+
+ // no dispatch config found remove control API from binder
+ if (!luaLoaded) {
+ AFB_WARNING("DISPATCH-INIT:WARNING Not Found Control dispatch file [%s]", controlFile);
+ }
+
+ AFB_NOTICE("DISPATCH-INIT:SUCCES: Audio Control Dispatch Init");
+ return 0;
+
+OnErrorExit:
+ AFB_NOTICE("DISPATCH-INIT:ERROR: Audio Control Dispatch Init");
+ return 1;
+}
+
+
+
diff --git a/ctl-lua.c b/ctl-lua.c
new file mode 100644
index 0000000..4ef6b65
--- /dev/null
+++ b/ctl-lua.c
@@ -0,0 +1,1033 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ref:
+ * (manual) https://www.lua.org/manual/5.3/manual.html
+ * (lua->C) http://www.troubleshooters.com/codecorn/lua/lua_c_calls_lua.htm#_Anatomy_of_a_Lua_Call
+ * (lua/C Var) http://acamara.es/blog/2012/08/passing-variables-from-lua-5-2-to-c-and-vice-versa/
+ * (Lua/C Lib)https://john.nachtimwald.com/2014/07/12/wrapping-a-c-library-in-lua/
+ * (Lua/C Table) https://gist.github.com/SONIC3D/10388137
+ * (Lua/C Nested table) https://stackoverflow.com/questions/45699144/lua-nested-table-from-lua-to-c
+ * (Lua/C Wrapper) https://stackoverflow.com/questions/45699950/lua-passing-handle-to-function-created-with-newlib
+ *
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+
+
+#include "ctl-binding.h"
+#include "wrap-json.h"
+
+#define LUA_FIST_ARG 2 // when using luaL_newlib calllback receive libtable as 1st arg
+#define LUA_MSG_MAX_LENGTH 512
+#define JSON_ERROR (json_object*)-1
+static afb_req NULL_AFBREQ = {};
+
+
+static lua_State* luaState;
+
+#define CTX_MAGIC 123456789
+#define CTX_TOKEN "AFB_ctx"
+
+typedef struct {
+ char *name;
+ int count;
+ afb_event event;
+} LuaAfbEvent;
+static LuaAfbEvent *luaDefaultEvt;
+
+typedef struct {
+ int ctxMagic;
+ afb_req request;
+ void *handle;
+ char *info;
+} LuaAfbContextT;
+
+typedef struct {
+ const char *callback;
+ json_object *context;
+ void *handle;
+} LuaCallServiceT;
+
+typedef enum {
+ AFB_MSG_INFO,
+ AFB_MSG_WARNING,
+ AFB_MSG_NOTICE,
+ AFB_MSG_DEBUG,
+ AFB_MSG_ERROR,
+} LuaAfbMessageT;
+
+/*
+ * Note(Fulup): I fail to use luaL_setmetatable and replaced it with a simple opaque
+ * handle while waiting for someone smarter than me to find a better solution
+ * https://stackoverflow.com/questions/45596493/lua-using-lua-newuserdata-from-lua-pcall
+ */
+
+STATIC LuaAfbContextT *LuaCtxCheck (lua_State *luaState, int index) {
+ LuaAfbContextT *afbContext;
+ //luaL_checktype(luaState, index, LUA_TUSERDATA);
+ //afbContext = (LuaAfbContextT *)luaL_checkudata(luaState, index, CTX_TOKEN);
+ luaL_checktype(luaState, index, LUA_TLIGHTUSERDATA);
+ afbContext = (LuaAfbContextT *) lua_touserdata(luaState, index);
+ if (afbContext == NULL && afbContext->ctxMagic != CTX_MAGIC) {
+ luaL_error(luaState, "Fail to retrieve user data context=%s", CTX_TOKEN);
+ AFB_ERROR ("afbContextCheck error retrieving afbContext");
+ return NULL;
+ }
+ return afbContext;
+}
+
+STATIC LuaAfbContextT *LuaCtxPush (lua_State *luaState, afb_req request, void *handle, const char* info) {
+ // LuaAfbContextT *afbContext = (LuaAfbContextT *)lua_newuserdata(luaState, sizeof(LuaAfbContextT));
+ // luaL_setmetatable(luaState, CTX_TOKEN);
+ LuaAfbContextT *afbContext = (LuaAfbContextT *)calloc(1, sizeof(LuaAfbContextT));
+ lua_pushlightuserdata(luaState, afbContext);
+ if (!afbContext) {
+ AFB_ERROR ("LuaCtxPush fail to allocate user data context");
+ return NULL;
+ }
+ afbContext->ctxMagic=CTX_MAGIC;
+ afbContext->info=strdup(info);
+ afbContext->request= request;
+ afbContext->handle= handle;
+ return afbContext;
+}
+
+STATIC void LuaCtxFree (LuaAfbContextT *afbContext) {
+ free(afbContext->info);
+ free(afbContext);
+}
+
+// Push a json structure on the stack as a LUA table
+STATIC int LuaPushArgument (json_object *argsJ) {
+
+ //AFB_NOTICE("LuaPushArgument argsJ=%s", json_object_get_string(argsJ));
+
+ json_type jtype= json_object_get_type(argsJ);
+ switch (jtype) {
+ case json_type_object: {
+ lua_newtable (luaState);
+ json_object_object_foreach (argsJ, key, val) {
+ int done = LuaPushArgument (val);
+ if (done) {
+ lua_setfield(luaState,-2, key);
+ }
+ }
+ break;
+ }
+ case json_type_array: {
+ int length= json_object_array_length(argsJ);
+ lua_newtable (luaState);
+ for (int idx=0; idx < length; idx ++) {
+ json_object *val=json_object_array_get_idx(argsJ, idx);
+ LuaPushArgument (val);
+ lua_seti (luaState,-2, idx);
+ }
+ break;
+ }
+ case json_type_int:
+ lua_pushinteger(luaState, json_object_get_int(argsJ));
+ break;
+ case json_type_string:
+ lua_pushstring(luaState, json_object_get_string(argsJ));
+ break;
+ case json_type_boolean:
+ lua_pushboolean(luaState, json_object_get_boolean(argsJ));
+ break;
+ case json_type_double:
+ lua_pushnumber(luaState, json_object_get_double(argsJ));
+ break;
+ case json_type_null:
+ AFB_WARNING("LuaPushArgument: NULL object type %s", json_object_get_string(argsJ));
+ return 0;
+ break;
+
+ default:
+ AFB_ERROR("LuaPushArgument: unsupported Json object type %s", json_object_get_string(argsJ));
+ return 0;
+ }
+ return 1;
+}
+
+STATIC json_object *LuaPopOneArg (lua_State* luaState, int idx);
+
+STATIC json_object *LuaTableToJson (lua_State* luaState, int index) {
+ int idx;
+ #define LUA_KEY_INDEX -2
+ #define LUA_VALUE_INDEX -1
+
+ json_object *tableJ= json_object_new_object();
+ const char *key;
+ char number[3];
+ lua_pushnil(luaState); // 1st key
+ if (index < 0) index--;
+ for (idx=1; lua_next(luaState, index) != 0; idx++) {
+
+ // uses 'key' (at index -2) and 'value' (at index -1)
+ if (lua_type(luaState,LUA_KEY_INDEX) == LUA_TSTRING) key= lua_tostring(luaState, LUA_KEY_INDEX);
+ else {
+ snprintf(number, sizeof(number),"%d", idx);
+ key=number;
+ }
+ json_object *argJ= LuaPopOneArg(luaState, LUA_VALUE_INDEX);
+ json_object_object_add(tableJ, key, argJ);
+ lua_pop(luaState, 1); // removes 'value'; keeps 'key' for next iteration
+ }
+
+ // Query is empty free empty json object
+ if (idx == 1) {
+ json_object_put(tableJ);
+ return NULL;
+ }
+ return tableJ;
+}
+
+STATIC json_object *LuaPopOneArg (lua_State* luaState, int idx) {
+ json_object *value=NULL;
+
+ int luaType = lua_type(luaState, idx);
+ switch(luaType) {
+ case LUA_TNUMBER: {
+ lua_Number number= lua_tonumber(luaState, idx);;
+ int nombre = (int)number; // evil trick to determine wether n fits in an integer. (stolen from ltcl.c)
+ if (number == nombre) {
+ value= json_object_new_int((int)number);
+ } else {
+ value= json_object_new_double(number);
+ }
+ break;
+ }
+ case LUA_TBOOLEAN:
+ value= json_object_new_boolean(lua_toboolean(luaState, idx));
+ break;
+ case LUA_TSTRING:
+ value= json_object_new_string(lua_tostring(luaState, idx));
+ break;
+ case LUA_TTABLE:
+ value= LuaTableToJson(luaState, idx);
+ break;
+ case LUA_TNIL:
+ value=json_object_new_string("nil") ;
+ break;
+ case LUA_TUSERDATA:
+ value=json_object_new_int64((int64_t)lua_touserdata(luaState, idx)); // store userdata as int !!!
+ break;
+
+ default:
+ AFB_NOTICE ("LuaPopOneArg: script returned Unknown/Unsupported idx=%d type:%d/%s", idx, luaType, lua_typename(luaState, luaType));
+ value=NULL;
+ }
+
+ return value;
+}
+
+static json_object *LuaPopArgs (lua_State* luaState, int start) {
+ json_object *responseJ;
+
+ int stop = lua_gettop(luaState);
+ if(stop-start <0) return NULL;
+
+ // start at 2 because we are using a function array lib
+ if (start == stop) {
+ responseJ=LuaPopOneArg (luaState, start);
+ } else {
+ // loop on remaining return arguments
+ responseJ= json_object_new_array();
+ for (int idx=start; idx <= stop; idx++) {
+ json_object *argJ=LuaPopOneArg (luaState, idx);
+ if (!argJ) goto OnErrorExit;
+ json_object_array_add(responseJ, argJ);
+ }
+ }
+
+ return responseJ;
+
+ OnErrorExit:
+ return NULL;
+}
+
+
+STATIC int LuaFormatMessage(lua_State* luaState, LuaAfbMessageT action) {
+ char *message;
+
+ json_object *responseJ= LuaPopArgs(luaState, LUA_FIST_ARG);
+
+ if (!responseJ) {
+ luaL_error(luaState,"LuaFormatMessage empty message");
+ goto OnErrorExit;
+ }
+
+ // if we have only on argument just return the value.
+ if (json_object_get_type(responseJ)!=json_type_array || json_object_array_length(responseJ) <2) {
+ message= (char*)json_object_get_string(responseJ);
+ goto PrintMessage;
+ }
+
+ // extract format and push all other parameter on the stack
+ message = alloca (LUA_MSG_MAX_LENGTH);
+ const char *format = json_object_get_string(json_object_array_get_idx(responseJ, 0));
+
+ int arrayIdx=1;
+ int targetIdx=0;
+
+ for (int idx=0; format[idx] !='\0'; idx++) {
+
+ if (format[idx]=='%' && format[idx] !='\0') {
+ json_object *slotJ= json_object_array_get_idx(responseJ, arrayIdx);
+ //if (slotJ) AFB_NOTICE("**** idx=%d slotJ=%s", arrayIdx, json_object_get_string(slotJ));
+
+
+ switch (format[++idx]) {
+ case 'd':
+ if (slotJ) targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"%d", json_object_get_int(slotJ));
+ else targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"nil");
+ arrayIdx++;
+ break;
+ case 'f':
+ if (slotJ) targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"%f", json_object_get_double(slotJ));
+ else targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"nil");
+ arrayIdx++;
+ break;
+
+ case'%':
+ message[targetIdx]='%';
+ targetIdx++;
+ break;
+
+ case 's':
+ default:
+ if (slotJ) targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"%s", json_object_get_string(slotJ));
+ else targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"nil");
+ arrayIdx++;
+ }
+
+ } else {
+ if (targetIdx >= LUA_MSG_MAX_LENGTH) {
+ AFB_WARNING ("LuaFormatMessage: message[%s] owerverflow LUA_MSG_MAX_LENGTH=%d", format, LUA_MSG_MAX_LENGTH);
+ targetIdx --; // move backward for EOL
+ break;
+ } else {
+ message[targetIdx++] = format[idx];
+ }
+ }
+ }
+ message[targetIdx]='\0';
+
+PrintMessage:
+ switch (action) {
+ case AFB_MSG_WARNING:
+ AFB_WARNING (message);
+ break;
+ case AFB_MSG_NOTICE:
+ AFB_NOTICE (message);
+ break;
+ case AFB_MSG_DEBUG:
+ AFB_DEBUG (message);
+ break;
+ case AFB_MSG_INFO:
+ AFB_INFO (message);
+ break;
+ case AFB_MSG_ERROR:
+ default:
+ AFB_ERROR (message);
+ }
+ return 0; // nothing return to lua
+
+ OnErrorExit: // on argument to return (the error message)
+ return 1;
+}
+
+STATIC int LuaPrintInfo(lua_State* luaState) {
+ int err=LuaFormatMessage (luaState, AFB_MSG_INFO);
+ return err;
+}
+
+STATIC int LuaPrintError(lua_State* luaState) {
+ int err=LuaFormatMessage (luaState, AFB_MSG_ERROR);
+ return err; // no value return
+}
+
+STATIC int LuaPrintWarning(lua_State* luaState) {
+ int err=LuaFormatMessage (luaState, AFB_MSG_WARNING);
+ return err;
+}
+
+STATIC int LuaPrintNotice(lua_State* luaState) {
+ int err=LuaFormatMessage (luaState, AFB_MSG_NOTICE);
+ return err;
+}
+
+STATIC int LuaPrintDebug(lua_State* luaState) {
+ int err=LuaFormatMessage (luaState, AFB_MSG_DEBUG);
+ return err;
+}
+
+STATIC int LuaAfbSuccess(lua_State* luaState) {
+ LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
+ if (!afbContext) goto OnErrorExit;
+
+ // ignore context argument
+ json_object *responseJ= LuaPopArgs(luaState, LUA_FIST_ARG+1);
+ if (responseJ == JSON_ERROR) return 1;
+
+ afb_req_success(afbContext->request, responseJ, NULL);
+
+ LuaCtxFree(afbContext);
+ return 0;
+
+ OnErrorExit:
+ lua_error(luaState);
+ return 1;
+}
+
+STATIC int LuaAfbFail(lua_State* luaState) {
+ LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
+ if (!afbContext) goto OnErrorExit;
+
+ json_object *responseJ= LuaPopArgs(luaState, LUA_FIST_ARG+1);
+ if (responseJ == JSON_ERROR) return 1;
+
+ afb_req_fail(afbContext->request, afbContext->info, json_object_get_string(responseJ));
+
+ LuaCtxFree(afbContext);
+ return 0;
+
+ OnErrorExit:
+ lua_error(luaState);
+ return 1;
+}
+
+STATIC void LuaAfbServiceCB(void *handle, int iserror, struct json_object *responseJ) {
+ LuaCallServiceT *contextCB= (LuaCallServiceT*)handle;
+ int count=1;
+
+ lua_getglobal(luaState, contextCB->callback);
+
+ // push error status & response
+ lua_pushboolean(luaState, iserror);
+ count+= LuaPushArgument(responseJ);
+ count+= LuaPushArgument(contextCB->context);
+
+ int err=lua_pcall(luaState, count, LUA_MULTRET, 0);
+ if (err) {
+ AFB_ERROR ("LUA-SERICE-CB:FAIL response=%s err=%s", json_object_get_string(responseJ), lua_tostring(luaState,-1) );
+ }
+
+ free (contextCB);
+}
+
+
+STATIC int LuaAfbService(lua_State* luaState) {
+ int count = lua_gettop(luaState);
+
+ // note: argument start at 2 because of AFB: table
+ if (count <5 || !lua_isstring(luaState, 2) || !lua_isstring(luaState, 3) || !lua_istable(luaState, 4) || !lua_isstring(luaState, 5)) {
+ lua_pushliteral (luaState, "LuaAfbServiceCall-Syntax is AFB:service_call (api, verb, query, callback, handle ....");
+ goto OnErrorExit;
+ }
+
+ // get api/verb+query
+ const char *api = lua_tostring(luaState,2);
+ const char *verb= lua_tostring(luaState,3);
+ json_object *queryJ= LuaTableToJson(luaState, 4);
+ if (queryJ == JSON_ERROR) return 1;
+
+ LuaCallServiceT *contextCB = calloc (1, sizeof(LuaCallServiceT));
+ contextCB->callback= lua_tostring(luaState, 5);
+ contextCB->context = LuaPopArgs(luaState, 6);
+
+ afb_service_call(api, verb, queryJ, LuaAfbServiceCB, contextCB);
+
+ return 0; // no value return
+
+ OnErrorExit:
+ lua_error(luaState);
+ return 1;
+}
+
+STATIC int LuaAfbServiceSync(lua_State* luaState) {
+ int count = lua_gettop(luaState);
+ json_object *responseJ;
+
+ // note: argument start at 2 because of AFB: table
+ if (count <3 || !lua_isstring(luaState, 2) || !lua_isstring(luaState, 3) || !lua_istable(luaState, 4)) {
+ lua_pushliteral (luaState, "LuaAfbServiceSync-Syntax is error,data=AFB:service_call (api, verb, query)");
+ goto OnErrorExit;
+ }
+
+ // get api/verb+query
+ const char *api = lua_tostring(luaState,2);
+ const char *verb= lua_tostring(luaState,3);
+ json_object *queryJ= LuaTableToJson(luaState, 4);
+
+ int iserror=afb_service_call_sync (api, verb, queryJ, &responseJ);
+
+ // push error status & response
+ count=1; lua_pushboolean(luaState, iserror);
+ count+= LuaPushArgument(responseJ);
+
+ return count; // return count values
+
+ OnErrorExit:
+ lua_error(luaState);
+ return 1;
+}
+
+STATIC int LuaAfbEventPush(lua_State* luaState) {
+ LuaAfbEvent *afbevt;
+ int index;
+
+ // if no private event handle then use default binding event
+ if (lua_islightuserdata(luaState, LUA_FIST_ARG)) {
+ afbevt = (LuaAfbEvent*) lua_touserdata(luaState, LUA_FIST_ARG);
+ index=LUA_FIST_ARG+1;
+ } else {
+ index=LUA_FIST_ARG;
+ afbevt=luaDefaultEvt;
+ }
+
+ if (!afb_event_is_valid(afbevt->event)) {
+ lua_pushliteral (luaState, "LuaAfbMakePush-Fail invalid event");
+ goto OnErrorExit;
+ }
+
+ json_object *ctlEventJ= LuaTableToJson(luaState, index);
+ if (!ctlEventJ) {
+ lua_pushliteral (luaState, "LuaAfbEventPush-Syntax is AFB:signal ([evtHandle], {lua table})");
+ goto OnErrorExit;
+ }
+
+ int done = afb_event_push(afbevt->event, ctlEventJ);
+ if (!done) {
+ lua_pushliteral (luaState, "LuaAfbEventPush-Fail No Subscriber to event");
+ AFB_ERROR ("LuaAfbEventPush-Fail name subscriber event=%s count=%d", afbevt->name, afbevt->count);
+ goto OnErrorExit;
+ }
+ afbevt->count++;
+ return 0;
+
+ OnErrorExit:
+ lua_error(luaState);
+ return 1;
+}
+
+STATIC int LuaAfbEventSubscribe(lua_State* luaState) {
+ LuaAfbEvent *afbevt;
+
+ LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
+ if (!afbContext) {
+ lua_pushliteral (luaState, "LuaAfbEventSubscribe-Fail Invalid request handle");
+ goto OnErrorExit;
+ }
+
+ // if no private event handle then use default binding event
+ if (lua_islightuserdata(luaState, LUA_FIST_ARG+1)) {
+ afbevt = (LuaAfbEvent*) lua_touserdata(luaState, LUA_FIST_ARG+1);
+ } else {
+ afbevt=luaDefaultEvt;
+ }
+
+ if (!afb_event_is_valid(afbevt->event)) {
+ lua_pushliteral (luaState, "LuaAfbMakePush-Fail invalid event handle");
+ goto OnErrorExit;
+ }
+
+ int err = afb_req_subscribe(afbContext->request, afbevt->event);
+ if (err) {
+ lua_pushliteral (luaState, "LuaAfbEventSubscribe-Fail No Subscriber to event");
+ AFB_ERROR ("LuaAfbEventPush-Fail name subscriber event=%s count=%d", afbevt->name, afbevt->count);
+ goto OnErrorExit;
+ }
+ afbevt->count++;
+ return 0;
+
+ OnErrorExit:
+ lua_error(luaState);
+ return 1;
+}
+
+STATIC int LuaAfbEventMake(lua_State* luaState) {
+ int count = lua_gettop(luaState);
+ LuaAfbEvent *afbevt=calloc(1,sizeof(LuaAfbEvent));
+
+ if (count != LUA_FIST_ARG || !lua_isstring(luaState, LUA_FIST_ARG)) {
+ lua_pushliteral (luaState, "LuaAfbEventMake-Syntax is evtHandle= AFB:event ('myEventName')");
+ goto OnErrorExit;
+ }
+
+ // event name should be the only argument
+ afbevt->name= strdup (lua_tostring(luaState,LUA_FIST_ARG));
+
+ // create a new binder event
+ afbevt->event = afb_daemon_make_event(afbevt->name);
+ if (!afb_event_is_valid(afbevt->event)) {
+ lua_pushliteral (luaState, "LuaAfbEventMake-Fail to Create Binder event");
+ goto OnErrorExit;
+ }
+
+ // push event handler as a LUA opaque handle
+ lua_pushlightuserdata(luaState, afbevt);
+ return 1;
+
+ OnErrorExit:
+ lua_error(luaState);
+ return 1;
+}
+
+// Function call from LUA when lua2c plugin L2C is used
+PUBLIC int Lua2cWrapper(lua_State* luaState, char *funcname, Lua2cFunctionT callback, void *context) {
+
+ json_object *argsJ= LuaPopArgs(luaState, LUA_FIST_ARG+1);
+ int response = (*callback) (funcname, argsJ, context);
+
+ // push response to LUA
+ lua_pushinteger(luaState, response);
+ return 1;
+}
+
+// Generated some fake event based on watchdog/counter
+PUBLIC int LuaCallFunc (DispatchSourceT source, DispatchActionT *action, json_object *queryJ) {
+
+ int err, count;
+
+ json_object* argsJ = action->argsJ;
+ const char* func = action->call;
+
+ // load function (should exist in CONTROL_PATH_LUA
+ lua_getglobal(luaState, func);
+
+ // push source on the stack
+ count=1;
+ lua_pushinteger(luaState, source);
+
+ // push argsJ on the stack
+ if (!argsJ) {
+ lua_pushnil(luaState);
+ count++;
+ } else {
+ count+= LuaPushArgument (argsJ);
+ }
+
+ // push queryJ on the stack
+ if (!queryJ) {
+ lua_pushnil(luaState);
+ count++;
+ } else {
+ count+= LuaPushArgument (queryJ);
+ }
+
+ // effectively exec LUA script code
+ err=lua_pcall(luaState, count, 1, 0);
+ if (err) {
+ AFB_ERROR("LuaCallFunc Fail calling %s error=%s", func, lua_tostring(luaState,-1));
+ goto OnErrorExit;
+ }
+
+ // return LUA script value
+ int rc= (int)lua_tointeger(luaState, -1);
+ return rc;
+
+ OnErrorExit:
+ return -1;
+}
+
+
+// Execute LUA code from received API request
+STATIC void LuaDoAction (LuaDoActionT action, afb_req request) {
+
+ int err, count=0;
+
+ json_object* queryJ = afb_req_json(request);
+
+ switch (action) {
+
+ case LUA_DOSTRING: {
+ const char *script = json_object_get_string(queryJ);
+ err=luaL_loadstring(luaState, script);
+ if (err) {
+ AFB_ERROR ("LUA-DO-COMPILE:FAIL String=%s err=%s", script, lua_tostring(luaState,-1) );
+ goto OnErrorExit;
+ }
+ // Push AFB client context on the stack
+ LuaAfbContextT *afbContext= LuaCtxPush(luaState, request,NULL,script);
+ if (!afbContext) goto OnErrorExit;
+
+ break;
+ }
+
+ case LUA_DOCALL: {
+ const char *func;
+ json_object *argsJ=NULL;
+
+ err= wrap_json_unpack (queryJ, "{s:s, s?o !}", "func", &func, "args", &argsJ);
+ if (err) {
+ AFB_ERROR ("LUA-DOCALL-SYNTAX missing func|args query=%s", json_object_get_string(queryJ));
+ goto OnErrorExit;
+ }
+
+ // load function (should exist in CONTROL_PATH_LUA
+ lua_getglobal(luaState, func);
+
+ // Push AFB client context on the stack
+ LuaAfbContextT *afbContext= LuaCtxPush(luaState, request, NULL, func);
+ if (!afbContext) goto OnErrorExit;
+
+ // push query on the stack
+ if (!argsJ) {
+ lua_pushnil(luaState);
+ count++;
+ } else {
+ count+= LuaPushArgument (argsJ);
+ }
+
+ break;
+ }
+
+ case LUA_DOSCRIPT: { // Fulup need to fix argument passing
+ const char *script;
+ char*func=NULL;
+ char *filename; char*fullpath;
+ char luaScriptPath[CONTROL_MAXPATH_LEN];
+ json_object *argsJ=NULL;
+ int index;
+
+ // scan luascript search path once
+ static json_object *luaScriptPathJ =NULL;
+
+ err= wrap_json_unpack (queryJ, "{s:s, s?s s?o !}", "script", &script,"func", &func, "args", &argsJ);
+ if (err) {
+ AFB_ERROR ("LUA-DOSCRIPT-SYNTAX:missing script|(args,arg) query=%s", json_object_get_string(queryJ));
+ goto OnErrorExit;
+ }
+
+ // search for filename=script in CONTROL_LUA_PATH
+ if (!luaScriptPathJ) luaScriptPathJ= ScanForConfig(CONTROL_LUA_PATH , CTL_SCAN_RECURSIVE,CONTROL_DOSCRIPT_PRE "-", script);
+ for (index=0; index < json_object_array_length(luaScriptPathJ); index++) {
+ json_object *entryJ=json_object_array_get_idx(luaScriptPathJ, index);
+
+ err= wrap_json_unpack (entryJ, "{s:s, s:s !}", "fullpath", &fullpath,"filename", &filename);
+ if (err) {
+ AFB_ERROR ("LUA-DOSCRIPT-SCAN:HOOPs invalid config file path = %s", json_object_get_string(entryJ));
+ goto OnErrorExit;
+ }
+
+ if (index > 0) AFB_WARNING("LUA-DOSCRIPT-SCAN:Ignore second script=%s path=%s", filename, fullpath);
+ else {
+ strncpy (luaScriptPath, fullpath, sizeof(luaScriptPath));
+ strncat (luaScriptPath, "/", sizeof(luaScriptPath));
+ strncat (luaScriptPath, filename, sizeof(luaScriptPath));
+ }
+ }
+
+ err= luaL_loadfile(luaState, luaScriptPath);
+ if (err) {
+ AFB_ERROR ("LUA-DOSCRIPT HOOPs Error in LUA loading scripts=%s err=%s", luaScriptPath, lua_tostring(luaState,-1));
+ goto OnErrorExit;
+ }
+
+ // script was loaded we need to parse to make it executable
+ err=lua_pcall(luaState, 0, 0, 0);
+ if (err) {
+ AFB_ERROR ("LUA-DOSCRIPT:FAIL to load %s", luaScriptPath);
+ goto OnErrorExit;
+ }
+
+ // if no func name given try to deduct from filename
+ if (!func) func= (char*)GetMidleName(filename);
+ if (!func) {
+ AFB_ERROR ("LUA-DOSCRIPT:FAIL to deduct funcname from %s", filename);
+ goto OnErrorExit;
+ }
+
+ // load function (should exist in CONTROL_PATH_LUA
+ lua_getglobal(luaState, func);
+
+ // Push AFB client context on the stack
+ LuaAfbContextT *afbContext= LuaCtxPush(luaState, request, NULL, func);
+ if (!afbContext) goto OnErrorExit;
+
+ // push function arguments
+ if (!argsJ) {
+ lua_pushnil(luaState);
+ count++;
+ } else {
+ count+= LuaPushArgument(argsJ);
+ }
+
+ break;
+ }
+
+ default:
+ AFB_ERROR ("LUA-DOSCRIPT-ACTION unknown query=%s", json_object_get_string(queryJ));
+ goto OnErrorExit;
+ }
+
+ // effectively exec LUA code (afb_reply/fail done later from callback)
+ err=lua_pcall(luaState, count+1, 0, 0);
+ if (err) {
+ AFB_ERROR ("LUA-DO-EXEC:FAIL query=%s err=%s", json_object_get_string(queryJ), lua_tostring(luaState,-1));
+ goto OnErrorExit;
+ }
+ return;
+
+ OnErrorExit:
+ afb_req_fail(request,"LUA:ERROR", lua_tostring(luaState,-1));
+ return;
+}
+
+PUBLIC void ctlapi_lua_dostring (afb_req request) {
+ LuaDoAction (LUA_DOSTRING, request);
+}
+
+PUBLIC void ctlapi_lua_docall (afb_req request) {
+ LuaDoAction (LUA_DOCALL, request);
+}
+
+PUBLIC void ctlapi_lua_doscript (afb_req request) {
+ LuaDoAction (LUA_DOSCRIPT, request);
+}
+
+STATIC int LuaTimerClear (lua_State* luaState) {
+
+ // Get Timer Handle
+ LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
+ if (!afbContext) goto OnErrorExit;
+
+ // retrieve useful information opaque handle
+ TimerHandleT *timerHandle = (TimerHandleT*)afbContext->handle;
+
+ AFB_NOTICE ("LuaTimerClear timer=%s", timerHandle->label);
+ TimerEvtStop(timerHandle);
+
+ return 0; //happy end
+
+OnErrorExit:
+ return 1;
+}
+STATIC int LuaTimerGet (lua_State* luaState) {
+
+ // Get Timer Handle
+ LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
+ if (!afbContext) goto OnErrorExit;
+
+ // retrieve useful information opaque handle
+ TimerHandleT *timerHandle = (TimerHandleT*)afbContext->handle;
+
+ // create response as a JSON object
+ json_object *responseJ= json_object_new_object();
+ json_object_object_add(responseJ,"label", json_object_new_string(timerHandle->label));
+ json_object_object_add(responseJ,"delay", json_object_new_int(timerHandle->delay));
+ json_object_object_add(responseJ,"count", json_object_new_int(timerHandle->count));
+
+ // return JSON object as Lua table
+ int count=LuaPushArgument(responseJ);
+
+ // free json object
+ json_object_put(responseJ);
+
+ return count; // return argument
+
+OnErrorExit:
+ return 0;
+}
+
+// Timer Callback
+
+// Set timer
+STATIC int LuaTimerSetCB (void *handle) {
+ LuaCallServiceT *contextCB =(LuaCallServiceT*) handle;
+ TimerHandleT *timerHandle = (TimerHandleT*) contextCB->handle;
+ int count;
+
+ // push timer handle and user context on Lua stack
+ lua_getglobal(luaState, contextCB->callback);
+
+ // Push timer handle
+ LuaAfbContextT *afbContext= LuaCtxPush(luaState, NULL_AFBREQ, contextCB->handle, timerHandle->label);
+ if (!afbContext) goto OnErrorExit;
+ count=1;
+
+ // Push user Context
+ count+= LuaPushArgument(contextCB->context);
+
+ int err=lua_pcall(luaState, count, LUA_MULTRET, 0);
+ if (err) {
+ AFB_ERROR ("LUA-TIMER-CB:FAIL response=%s err=%s", json_object_get_string(contextCB->context), lua_tostring(luaState,-1));
+ goto OnErrorExit;
+ }
+
+ // get return parameter
+ if (!lua_isboolean(luaState, -1)) {
+ return (lua_toboolean(luaState, -1));
+ }
+
+ // timer last run free context resource
+ if (timerHandle->count == 1) {
+ LuaCtxFree(afbContext);
+ }
+ return 0; // By default we are happy
+
+ OnErrorExit:
+ return 1; // stop timer
+}
+
+STATIC int LuaTimerSet(lua_State* luaState) {
+ const char *label=NULL, *info=NULL;
+ int delay=0, count=0;
+
+ json_object *timerJ = LuaPopOneArg(luaState, LUA_FIST_ARG);
+ const char *callback = lua_tostring(luaState, LUA_FIST_ARG + 1);
+ json_object *contextJ = LuaPopOneArg(luaState, LUA_FIST_ARG + 2);
+
+ if (lua_gettop(luaState) != LUA_FIST_ARG+2 || !timerJ || !callback || !contextJ) {
+ lua_pushliteral(luaState, "LuaTimerSet-Syntax timerset (timerT, 'callback', contextT)");
+ goto OnErrorExit;
+ }
+
+ int err = wrap_json_unpack(timerJ, "{ss, s?s si, si !}", "label", &label, "info", &info, "delay", &delay, "count", &count);
+ if (err) {
+ lua_pushliteral(luaState, "LuaTimerSet-Syntax timerT={label:xxx delay:ms, count:xx}");
+ goto OnErrorExit;
+ }
+
+ // everything look fine create timer structure
+ TimerHandleT *timerHandle = malloc (sizeof (TimerHandleT));
+ timerHandle->delay=delay;
+ timerHandle->count=count;
+ timerHandle->label=label;
+
+ // Allocate handle to store context and callback
+ LuaCallServiceT *contextCB = calloc (1, sizeof(LuaCallServiceT));
+ contextCB->callback= callback;
+ contextCB->context = contextJ;
+ contextCB->handle = timerHandle;
+
+ // fire timer
+ TimerEvtStart (timerHandle, LuaTimerSetCB, contextCB);
+
+ return 0; // Happy No Return Function
+
+OnErrorExit:
+ lua_error(luaState);
+ return 1; // return error code
+}
+
+// Register a new L2c list of LUA user plugin commands
+PUBLIC void LuaL2cNewLib(const char *label, luaL_Reg *l2cFunc, int count) {
+ // luaL_newlib(luaState, l2cFunc); macro does not work with pointer :(
+ luaL_checkversion(luaState);
+ lua_createtable(luaState, 0, count+1);
+ luaL_setfuncs(luaState,l2cFunc,0);
+ lua_setglobal(luaState, label);
+}
+
+static const luaL_Reg afbFunction[] = {
+ {"timerclear", LuaTimerClear},
+ {"timerget" , LuaTimerGet},
+ {"timerset" , LuaTimerSet},
+ {"notice" , LuaPrintNotice},
+ {"info" , LuaPrintInfo},
+ {"warning" , LuaPrintWarning},
+ {"debug" , LuaPrintDebug},
+ {"error" , LuaPrintError},
+ {"servsync" , LuaAfbServiceSync},
+ {"service" , LuaAfbService},
+ {"success" , LuaAfbSuccess},
+ {"fail" , LuaAfbFail},
+ {"subscribe" , LuaAfbEventSubscribe},
+ {"evtmake" , LuaAfbEventMake},
+ {"evtpush" , LuaAfbEventPush},
+
+ {NULL, NULL} /* sentinel */
+};
+
+// Create Binding Event at Init
+PUBLIC int LuaLibInit () {
+ int err, index;
+
+ // search for default policy config file
+ char fullprefix[CONTROL_MAXPATH_LEN];
+ strncpy (fullprefix, CONTROL_CONFIG_PRE "-", sizeof(fullprefix));
+ strncat (fullprefix, GetBinderName(), sizeof(fullprefix));
+ strncat (fullprefix, "-", sizeof(fullprefix));
+
+ json_object *luaScriptPathJ = ScanForConfig(CONTROL_LUA_PATH , CTL_SCAN_RECURSIVE, fullprefix, "lua");
+
+ // open a new LUA interpretor
+ luaState = luaL_newstate();
+ if (!luaState) {
+ AFB_ERROR ("LUA_INIT: Fail to open lua interpretor");
+ goto OnErrorExit;
+ }
+
+ // load auxiliary libraries
+ luaL_openlibs(luaState);
+
+ // redirect print to AFB_NOTICE
+ luaL_newlib(luaState, afbFunction);
+ lua_setglobal(luaState, "AFB");
+
+ // create default lua event to send test pause/resume
+ luaDefaultEvt=calloc(1,sizeof(LuaAfbEvent));
+ luaDefaultEvt->name=CONTROL_LUA_EVENT;
+ luaDefaultEvt->event = afb_daemon_make_event(CONTROL_LUA_EVENT);
+ if (!afb_event_is_valid(luaDefaultEvt->event)) {
+ AFB_ERROR ("POLCTL_INIT: Cannot register lua-events=%s ", CONTROL_LUA_EVENT);
+ goto OnErrorExit;;
+ }
+
+ // load+exec any file found in LUA search path
+ for (index=0; index < json_object_array_length(luaScriptPathJ); index++) {
+ json_object *entryJ=json_object_array_get_idx(luaScriptPathJ, index);
+
+ char *filename; char*fullpath;
+ err= wrap_json_unpack (entryJ, "{s:s, s:s !}", "fullpath", &fullpath,"filename", &filename);
+ if (err) {
+ AFB_ERROR ("LUA-INIT HOOPs invalid config file path = %s", json_object_get_string(entryJ));
+ goto OnErrorExit;
+ }
+
+ char filepath[CONTROL_MAXPATH_LEN];
+ strncpy(filepath, fullpath, sizeof(filepath));
+ strncat(filepath, "/", sizeof(filepath));
+ strncat(filepath, filename, sizeof(filepath));
+ err= luaL_loadfile(luaState, filepath);
+ if (err) {
+ AFB_ERROR ("LUA-LOAD HOOPs Error in LUA loading scripts=%s err=%s", filepath, lua_tostring(luaState,-1));
+ goto OnErrorExit;
+ }
+
+ // exec/compil script
+ err = lua_pcall(luaState, 0, 0, 0);
+ if (err) {
+ AFB_ERROR ("LUA-LOAD HOOPs Error in LUA exec scripts=%s err=%s", filepath, lua_tostring(luaState,-1));
+ goto OnErrorExit;
+ }
+ }
+
+ // no policy config found remove control API from binder
+ if (index == 0) {
+ AFB_WARNING ("POLICY-INIT:WARNING No Control LUA file in path=[%s]", CONTROL_LUA_PATH);
+ }
+
+ AFB_DEBUG ("Audio control-LUA Init Done");
+ return 0;
+
+ OnErrorExit:
+ return 1;
+}
+ \ No newline at end of file
diff --git a/ctl-plugin-sample.c b/ctl-plugin-sample.c
new file mode 100644
index 0000000..1d66802
--- /dev/null
+++ b/ctl-plugin-sample.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Sample plugin for Controller
+ */
+
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+
+#include "ctl-binding.h"
+
+#define MY_PLUGIN_MAGIC 987654321
+
+typedef struct {
+ int magic;
+ int count;
+} MyPluginCtxT;
+
+STATIC const char* jsonToString (json_object *valueJ) {
+ const char *value;
+ if (valueJ)
+ value=json_object_get_string(valueJ);
+ else
+ value="NULL";
+
+ return value;
+}
+
+// Declare this sharelib as a Controller Plugin
+CTLP_REGISTER("MyCtlSamplePlugin");
+
+// Call at initialisation time
+PUBLIC CTLP_ONLOAD(label, version, info) {
+ MyPluginCtxT *pluginCtx= (MyPluginCtxT*)calloc (1, sizeof(MyPluginCtxT));
+ pluginCtx->magic = MY_PLUGIN_MAGIC;
+ pluginCtx->count = -1;
+
+ AFB_NOTICE ("CONTROLLER-PLUGIN-SAMPLE:Onload label=%s version=%s info=%s", label, info, version);
+ return (void*)pluginCtx;
+}
+
+PUBLIC CTLP_CAPI (SamplePolicyInit, source, label, argsJ, queryJ, context) {
+ MyPluginCtxT *pluginCtx= (MyPluginCtxT*)context;
+ if (!context || pluginCtx->magic != MY_PLUGIN_MAGIC) {
+ AFB_ERROR("CONTROLLER-PLUGIN-SAMPLE:SamplePolicyInit (Hoops) Invalid Sample Plugin Context");
+ return -1;
+ };
+
+ pluginCtx->count = 0;
+ AFB_NOTICE ("CONTROLLER-PLUGIN-SAMPLE:Init label=%s args=%s\n", label, jsonToString(argsJ));
+ return 0;
+}
+
+PUBLIC CTLP_CAPI (sampleControlMultimedia, source, label, argsJ,queryJ,context) {
+ MyPluginCtxT *pluginCtx= (MyPluginCtxT*)context;
+
+ if (!context || pluginCtx->magic != MY_PLUGIN_MAGIC) {
+ AFB_ERROR("CONTROLLER-PLUGIN-SAMPLE:sampleControlMultimedia (Hoops) Invalid Sample Plugin Context");
+ return -1;
+ };
+ pluginCtx->count++;
+ AFB_NOTICE ("CONTROLLER-PLUGIN-SAMPLE:sampleControlMultimedia SamplePolicyCount action=%s args=%s query=%s count=%d"
+ , label, jsonToString(argsJ), jsonToString(queryJ), pluginCtx->count);
+ return 0;
+}
+
+PUBLIC CTLP_CAPI (sampleControlNavigation, source, label, argsJ, queryJ, context) {
+ MyPluginCtxT *pluginCtx= (MyPluginCtxT*)context;
+
+ if (!context || pluginCtx->magic != MY_PLUGIN_MAGIC) {
+ AFB_ERROR("CONTROLLER-PLUGIN-SAMPLE:sampleControlNavigation (Hoops) Invalid Sample Plugin Context");
+ return -1;
+ };
+ pluginCtx->count++;
+ AFB_NOTICE ("CONTROLLER-PLUGIN-SAMPLE:sampleControlNavigation SamplePolicyCount action=%s args=%s query=%s count=%d"
+ ,label, jsonToString(argsJ), jsonToString(queryJ), pluginCtx->count);
+ return 0;
+}
+
+PUBLIC CTLP_CAPI (SampleControlEvent, source, label, argsJ, queryJ, context) {
+ MyPluginCtxT *pluginCtx= (MyPluginCtxT*)context;
+
+ if (!context || pluginCtx->magic != MY_PLUGIN_MAGIC) {
+ AFB_ERROR("CONTROLLER-PLUGIN-SAMPLE:cousampleControlMultimediant (Hoops) Invalid Sample Plugin Context");
+ return -1;
+ };
+ pluginCtx->count++;
+ AFB_NOTICE ("CONTROLLER-PLUGIN-SAMPLE:sampleControlMultimedia SamplePolicyCount action=%s args=%s query=%s count=%d"
+ ,label, jsonToString(argsJ), jsonToString(queryJ), pluginCtx->count);
+ return 0;
+}
+
+// This function is a LUA function. Lua2CHelloWorld label should be declare in the "onload" section of JSON config file
+PUBLIC CTLP_LUA2C (Lua2cHelloWorld1, label, argsJ, context) {
+ MyPluginCtxT *pluginCtx= (MyPluginCtxT*)context;
+
+ if (!context || pluginCtx->magic != MY_PLUGIN_MAGIC) {
+ AFB_ERROR("CONTROLLER-PLUGIN-SAMPLE:Lua2cHelloWorld1 (Hoops) Invalid Sample Plugin Context");
+ return -1;
+ };
+ pluginCtx->count++;
+ AFB_NOTICE ("CONTROLLER-PLUGIN-SAMPLE:Lua2cHelloWorld1 SamplePolicyCount action=%s args=%s count=%d"
+ ,label, jsonToString(argsJ), pluginCtx->count);
+ return 0;
+}
+
+// This function is a LUA function. Lua2CHelloWorld label should be declare in the "onload" section of JSON config file
+PUBLIC CTLP_LUA2C (Lua2cHelloWorld2, label, argsJ, context) {
+ MyPluginCtxT *pluginCtx= (MyPluginCtxT*)context;
+
+ if (!context || pluginCtx->magic != MY_PLUGIN_MAGIC) {
+ AFB_ERROR("CONTROLLER-PLUGIN-SAMPLE:Lua2cHelloWorld2 (Hoops) Invalid Sample Plugin Context");
+ return -1;
+ };
+ pluginCtx->count++;
+ AFB_NOTICE ("CONTROLLER-PLUGIN-SAMPLE:Lua2cHelloWorld2 SamplePolicyCount action=%s args=%s count=%d"
+ ,label, jsonToString(argsJ), pluginCtx->count);
+ return 0;
+}
diff --git a/ctl-policy.c b/ctl-policy.c
new file mode 100644
index 0000000..e9798b3
--- /dev/null
+++ b/ctl-policy.c
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, something express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+#include <json-c/json_object.h>
+
+#include "wrap-json.h"
+#include "ctl-binding.h"
+
+STATIC PolicyCtlConfigT *ctlHandle = NULL;
+
+// List Avaliable Configuration Files
+STATIC json_object* ScanForConfig (char* searchPath) {
+ json_object *responseJ;
+ DIR *dirHandle;
+ char *dirPath;
+ char* dirList= strdup(searchPath);
+
+ responseJ = json_object_new_array();
+ for (dirPath= strtok(dirList, ":"); dirPath && *dirPath; dirPath=strtok(NULL,":")) {
+ struct dirent *dirEnt;
+
+ dirHandle = opendir (dirPath);
+ if (!dirHandle) {
+ AFB_NOTICE ("CONFIG-SCANNING dir=%s not readable", dirPath);
+ continue;
+ }
+
+ AFB_NOTICE ("CONFIG-SCANNING:ctl_listconfig scanning: %s", dirPath);
+ while ((dirEnt = readdir(dirHandle)) != NULL) {
+ // Unknown type is accepted to support dump filesystems
+ if (dirEnt->d_type == DT_REG || dirEnt->d_type == DT_UNKNOWN) {
+ struct json_object *pathJ = json_object_new_object();
+ json_object_object_add(pathJ, "dirpath", json_object_new_string(dirPath));
+ json_object_object_add(pathJ, "filename", json_object_new_string(dirEnt->d_name));
+ json_object_array_add(responseJ, pathJ);
+ }
+ }
+ }
+
+ free (dirList);
+ return (responseJ);
+}
+
+PUBLIC void ctlapi_authorize (PolicyCtlEnumT control, afb_req request) {
+ json_object*tmpJ;
+
+ json_object* queryJ= afb_req_json(request);
+ int done=json_object_object_get_ex(queryJ, "closing", &tmpJ);
+ if (done) return;
+
+}
+
+
+// List Avaliable Configuration Files
+PUBLIC void ctlapi_config (struct afb_req request) {
+ json_object*tmpJ;
+ char *dirList;
+
+ json_object* queryJ = afb_req_json(request);
+ if (queryJ && json_object_object_get_ex (queryJ, "cfgpath" , &tmpJ)) {
+ dirList = strdup (json_object_get_string(tmpJ));
+ } else {
+ dirList = strdup (CONTROL_CONFIG_PATH);
+ AFB_NOTICE ("CONFIG-MISSING: use default CONTROL_CONFIG_PATH=%s", CONTROL_CONFIG_PATH);
+ }
+
+ // get list of config file
+ struct json_object *responseJ = ScanForConfig(dirList);
+
+ if (json_object_array_length(responseJ) == 0) {
+ afb_req_fail(request, "CONFIGPATH:EMPTY", "No Config Found in CONTROL_CONFIG_PATH");
+ } else {
+ afb_req_success(request, responseJ, NULL);
+ }
+
+ return;
+}
+
+STATIC PolicyActionT **PolicyLoadActions (json_object *actionsJ) {
+ int err;
+ PolicyActionT ** actions;
+
+ // unpack individual action object
+ int actionUnpack (json_object *actionJ, PolicyActionT *action) {
+
+ err= wrap_json_unpack(actionJ, "{ss,s?s,s?s,s?s,s?s,s?s !}"
+ , "label",&action->label, "info",&action->info, "callback",&action->callback, "query",&queryJ, "api",&action->api, "verb", &action->verb);
+ if (err) {
+ AFB_ERROR ("POLICY-LOAD-ACTION Missing something label|info|callback|api|verb|query in %s", json_object_get_string(actionJ));
+ return -1;
+ }
+ if (!action->callback || !(action->api && action->verb)) {
+ AFB_ERROR ("POLICY-LOAD-ACTION Missing something callback|(api+verb) in %s", json_object_get_string(actionJ));
+ return -1;
+ }
+ return 0;
+ };
+
+ // action array is close with a nullvalue;
+ if (json_object_get_type(actionsJ) == json_type_array) {
+ int count = json_object_array_length(actionsJ);
+ actions = calloc (count+1, sizeof(PolicyActionT));
+
+ for (int idx=0; idx < count; idx++) {
+ json_object *actionJ = json_object_array_get_idx(actionsJ, idx);
+ err = actionUnpack (actionJ, &actions[idx]);
+ if (err) goto OnErrorExit;
+ }
+
+ } else {
+ actions = calloc (2, sizeof(PolicyActionT));
+ err = actionUnpack (actionsJ, &actions[0]);
+ if (err) goto OnErrorExit;
+ }
+
+ return actions;
+
+ OnErrorExit:
+ return NULL;
+
+}
+
+// load control policy from file using json_unpack https://jansson.readthedocs.io/en/2.9/apiref.html#parsing-and-validating-values
+STATIC PolicyCtlConfigT *PolicyLoadConfig (const char* filepath) {
+ json_object *policyConfigJ, *ignoreJ, *actionsJ;
+ PolicyCtlConfigT *policyConfig = calloc (1, sizeof(PolicyCtlConfigT));
+ int err;
+
+ // Load JSON file
+ policyConfigJ= json_object_from_file(filepath);
+ if (!policyConfigJ) goto OnErrorExit;
+
+ json_object *metadataJ, *onloadJ, *controlsJ, *eventsJ;
+ err= wrap_json_unpack(policyConfigJ, "{s?o,so,s?o,so,so !}", "$schema", &ignoreJ, "metadata",&metadataJ, "onload",&onloadJ, "controls",&controlsJ, "events",&eventsJ);
+ if (err) {
+ AFB_ERROR ("POLICY-LOAD-ERRROR Missing something metadata|onload|controls|events in %s", json_object_get_string(policyConfigJ));
+ goto OnErrorExit;
+ }
+
+ PolicyHandleT *policyHandle = calloc (1, sizeof(PolicyHandleT));
+ err= wrap_json_unpack(metadataJ, "{so,s?s,s?s !}", "label", &policyHandle->label, "info",&policyHandle->info, "version",&policyHandle->version);
+ if (err) {
+ AFB_ERROR ("POLICY-LOAD-CONFIG Missing something label|info|version in %s", json_object_get_string(metadataJ));
+ goto OnErrorExit;
+ }
+
+ if (onloadJ) {
+ err= wrap_json_unpack(onloadJ, "{s?o,s?s,s?s !}", "info",&ignoreJ, "label",&ignoreJ, "actions",&actionsJ);
+ if (err) {
+ AFB_ERROR ("POLICY-LOAD-CONFIG Missing something label|info|plugin|actions in %s", json_object_get_string(metadataJ));
+ goto OnErrorExit;
+ }
+ policyConfig->onload = PolicyLoadActions (actionsJ);
+ }
+
+ return policyControl;
+
+OnErrorExit:
+ return NULL;
+}
+
+// Load default config file at init
+PUBLIC int PolicyInit () {
+ int index, err;
+
+
+ // search for default policy config file
+ json_object* responseJ = ScanForConfig(CONTROL_CONFIG_PATH);
+
+ for (index=0; index < json_object_array_length(responseJ); index++) {
+ json_object *entryJ=json_object_array_get_idx(responseJ, index);
+
+ char *filename; char*dirpath;
+ err= wrap_json_unpack (entryJ, "{s:s, s:s !}", "dirpath", &dirpath,"filename", &filename);
+ if (err) {
+ AFB_ERROR ("POLICY-INIT HOOPs invalid config file path = %s", json_object_get_string(entryJ));
+ goto OnErrorExit;
+ }
+
+ if (strcasestr(filename, CONTROL_CONFIG_FILE)) {
+ char filepath[255];
+ strncpy(filepath, dirpath, sizeof(filepath));
+ strncat(filepath, "/", sizeof(filepath));
+ strncat(filepath, filename, sizeof(filepath));
+ ctlHandle = PolicyLoadConfig (filepath);
+ if (!ctlHandle) goto OnErrorExit;
+ break;
+ }
+ }
+
+ // no policy config found remove control API from binder
+ if (index == 0) goto OnErrorExit;
+
+ AFB_NOTICE ("SUCCES: Audio Control Policy Init");
+ return 0;
+
+OnErrorExit:
+ AFB_NOTICE ("ERROR: Audio Control Policy Init");
+ return 1;
+}
+
+
+
diff --git a/ctl-timer.c b/ctl-timer.c
new file mode 100644
index 0000000..a826f9f
--- /dev/null
+++ b/ctl-timer.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <systemd/sd-event.h>
+
+#include "ctl-binding.h"
+
+#define DEFAULT_PAUSE_DELAY 3000
+#define DEFAULT_TEST_COUNT 1
+typedef struct {
+ int value;
+ const char *label;
+} AutoTestCtxT;
+
+static afb_event afbevt;
+
+STATIC int TimerNext (sd_event_source* source, uint64_t timer, void* handle) {
+ TimerHandleT *timerHandle = (TimerHandleT*) handle;
+ int done;
+ uint64_t usec;
+
+ // Rearm timer if needed
+ timerHandle->count --;
+ if (timerHandle->count == 0) {
+ sd_event_source_unref(source);
+ free (handle);
+ return 0;
+ }
+ else {
+ // otherwise validate timer for a new run
+ sd_event_now(afb_daemon_get_event_loop(), CLOCK_MONOTONIC, &usec);
+ sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
+ sd_event_source_set_time(source, usec + timerHandle->delay*1000);
+ }
+
+ done= timerHandle->callback(timerHandle->context);
+ if (!done) goto OnErrorExit;
+
+ return 0;
+
+OnErrorExit:
+ AFB_WARNING("TimerNext Callback Fail Tag=%s", timerHandle->label);
+ return -1;
+}
+
+PUBLIC void TimerEvtStop(TimerHandleT *timerHandle) {
+
+ sd_event_source_unref(timerHandle->evtSource);
+ free (timerHandle);
+}
+
+
+PUBLIC void TimerEvtStart(TimerHandleT *timerHandle, timerCallbackT callback, void *context) {
+ uint64_t usec;
+
+ // populate CB handle
+ timerHandle->callback=callback;
+ timerHandle->context=context;
+
+ // set a timer with ~250us accuracy
+ sd_event_now(afb_daemon_get_event_loop(), CLOCK_MONOTONIC, &usec);
+ sd_event_add_time(afb_daemon_get_event_loop(), &timerHandle->evtSource, CLOCK_MONOTONIC, usec+timerHandle->delay*1000, 250, TimerNext, timerHandle);
+}
+
+PUBLIC afb_event TimerEvtGet(void) {
+ return afbevt;
+}
+
+
+// Create Binding Event at Init
+PUBLIC int TimerEvtInit () {
+
+ // create binder event to send test pause/resume
+ afbevt = afb_daemon_make_event("control");
+ if (!afb_event_is_valid(afbevt)) {
+ AFB_ERROR ("POLCTL_INIT: Cannot register ctl-events");
+ return 1;
+ }
+
+ AFB_DEBUG ("Audio Control-Events Init Done");
+ return 0;
+}
+