aboutsummaryrefslogtreecommitdiffstats
path: root/ctl-lib/ctl-plugin.h
blob: a2bd071d510bbf78231448574ee7397d14a820b8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
/*
 * 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.
 *
 */


#ifndef _CTL_PLUGIN_INCLUDE_
#define _CTL_PLUGIN_INCLUDE_

#ifdef __cplusplus
extern "C" {
#endif

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif

#include <json-c/json.h>

// Waiting for a clean AppFW-V3 API
#ifdef USE_API_DYN
    #define AFB_BINDING_VERSION dyn
    #include <afb/afb-binding.h>

    #define AFB_BINDING_PREV3
    #define AFB_ReqNone NULL
    typedef afb_request* AFB_ReqT;
    typedef afb_dynapi*  AFB_ApiT;

    typedef afb_eventid* AFB_EventT;
    #define AFB_EventIsValid(eventid) eventid
    #define AFB_EventPush afb_eventid_push
    #define AFB_ReqSubscribe  afb_request_subscribe
    #define AFB_EventMake(api, name) afb_dynapi_make_eventid(api, name)

    #define AFB_ReqJson(request) afb_request_json(request)

    #define AFB_ReqSucess  afb_request_success
    #define AFB_ReqSucessF afb_request_success_f
    #define AFB_ReqFail    afb_request_fail
    #define AFB_ReqFailF   afb_request_fail_f

    #define AFB_ReqNotice(request, ...)   AFB_REQUEST_NOTICE (request, __VA_ARGS__)
    #define AFB_ReqWarning(request, ...)  AFB_REQUEST_WARNING (request, __VA_ARGS__)
    #define AFB_ReqDebug(request, ...)    AFB_REQUEST_DEBUG (request, __VA_ARGS__)
    #define AFB_ReqError(request, ...)    AFB_REQUEST_ERROR (request, __VA_ARGS__)
    #define AFB_ReqInfo(request, ...)     AFB_REQUEST_INFO (request, __VA_ARGS__)

    #define AFB_ApiVerbose(api, level, ...) afb_dynapi_verbose(api, level, __VA_ARGS__)
    #define AFB_ApiNotice(api, ...)   AFB_DYNAPI_NOTICE (api, __VA_ARGS__)
    #define AFB_ApiWarning(api, ...)  AFB_DYNAPI_WARNING (api, __VA_ARGS__)
    #define AFB_ApiDebug(api, ...)    AFB_DYNAPI_DEBUG (api, __VA_ARGS__)
    #define AFB_ApiError(api, ...)    AFB_DYNAPI_ERROR (api, __VA_ARGS__)
    #define AFB_ApiInfo(api, ...)     AFB_DYNAPI_INFO (api, __VA_ARGS__)

    #define AFB_ReqIsValid(request)   request
    #define AFB_EvtIsValid(evtHandle) evtHandle

    #define AFB_ServiceCall(api, ...) afb_dynapi_call(api, __VA_ARGS__)
    #define AFB_ServiceSync(api, ...) afb_dynapi_call_sync(api, __VA_ARGS__)

    #define AFB_RequireApi(api, ...) afb_dynapi_require_api(api, __VA_ARGS__)

    #define AFB_GetEventLoop(api) afb_dynapi_get_event_loop(api)

    #define AFB_ClientCtxSet(request, replace, createCB, freeCB, handle) afb_request_context(request, replace, createCB, freeCB, handle)
    #define AFB_ClientCtxClear(request) afb_request_context_clear(request)


    typedef struct {
            const char *verb;                       /* name of the verb, NULL only at end of the array */
            void (*callback)(AFB_ReqT req);   /* callback function implementing the verb */
            const struct afb_auth *auth;		/* required authorisation, can be NULL */
            const char *info;			/* some info about the verb, can be NULL */
            uint32_t session;
    } AFB_ApiVerbs;

#else
    #define AFB_BINDING_VERSION 2
    #include <afb/afb-binding.h>

    typedef afb_req AFB_ReqT;
    typedef void* AFB_ApiT;
    #define AFB_ReqNone (struct afb_req){0,0}

    typedef afb_event AFB_EventT;
    #define AFB_EventPush afb_event_push
    #define AFB_ReqSubscribe  afb_req_subscribe
    #define AFB_EventIsValid(event) afb_event_is_valid(event)
    #define AFB_EventMake(api, name) afb_daemon_make_event(name)

    #define AFB_ReqJson(request) afb_req_json(request)
    #define AFB_ReqSucess  afb_req_success
    #define AFB_ReqSucessF afb_req_success_f
    #define AFB_ReqFail    afb_req_fail
    #define AFB_ReqFailF   afb_req_fail_f

    #define AFB_ReqNotice(request, ...)   AFB_NOTICE (__VA_ARGS__)
    #define AFB_ReqWarning(request, ...)  AFB_WARNING (__VA_ARGS__)
    #define AFB_ReqDebug(request, ...)    AFB_DEBUG (__VA_ARGS__)
    #define AFB_ReqError(request, ...)    AFB_ERROR (__VA_ARGS__)
    #define AFB_ReqInfo(request, ...)     AFB_INFO (__VA_ARGS__)

    #define AFB_ApiVerbose(api, level, ...) afb_daemon_verbose_v2(level,__VA_ARGS__)
    #define AFB_ApiNotice(api, ...)   AFB_NOTICE (__VA_ARGS__)
    #define AFB_ApiWarning(api, ...)  AFB_WARNING (__VA_ARGS__)
    #define AFB_ApiDebug(api, ...)    AFB_DEBUG (__VA_ARGS__)
    #define AFB_ApiError(api, ...)    AFB_ERROR (__VA_ARGS__)
    #define AFB_ApiInfo(api, ...)     AFB_INFO (__VA_ARGS__)

    #define AFB_ReqIsValid(request)   afb_req_is_valid(request)
    #define AFB_EvtIsValid(evtHandle) afb_event_is_valid(evtHandle)

    #define AFB_ServiceCall(api, ...) afb_service_call(__VA_ARGS__)
    #define AFB_ServiceSync(api, ...) afb_service_call_sync(__VA_ARGS__)

    #define AFB_RequireApi(api, ...)  afb_daemon_require_api(__VA_ARGS__)

    #define AFB_GetEventLoop(api) afb_daemon_get_event_loop()

    static inline void* AFB_ClientCtxSet(afb_req request, int replace, void *(*create_context)(void *closure), void (*free_context)(void*), void *closure)
    {
        void *ctx = create_context(closure);
        if(ctx)
            {afb_req_context_set(request, ctx, free_context);}
        return ctx;
    }

    #define AFB_ClientCtxClear(request) afb_req_context_clear(request)

    #define AFB_ApiVerbs afb_verb_v2
#endif


#ifndef CTL_PLUGIN_MAGIC
  #define CTL_PLUGIN_MAGIC 852369147
#endif

#ifndef UNUSED_ARG
  #define UNUSED_ARG(x) UNUSED_ ## x __attribute__((__unused__))
  #define UNUSED_FUNCTION(x) __attribute__((__unused__)) UNUSED_ ## x
#endif

#ifdef CONTROL_SUPPORT_LUA
  typedef struct luaL_Reg luaL_Reg;

  typedef struct CtlLua2cFuncT {
    luaL_Reg *l2cFunc;
    const char *prefix;
    int l2cCount;
} CtlLua2cFuncT;
#endif

typedef struct {
  const char *uid;
  const long magic;
} CtlPluginMagicT;

typedef struct {
    const char *uid;
    const char *info;
    AFB_ApiT api;
    void *dlHandle;
    void *context;
#ifdef CONTROL_SUPPORT_LUA
    CtlLua2cFuncT *ctlL2cFunc;
#endif
} CtlPluginT;

typedef enum {
    CTL_TYPE_NONE=0,
    CTL_TYPE_API,
    CTL_TYPE_CB,
    CTL_TYPE_LUA,
} CtlActionTypeT;

typedef enum {
    CTL_STATUS_DONE=0,
    CTL_STATUS_ERR=-1,
    CTL_STATUS_EVT=1,
    CTL_STATUS_FREE=2,
} CtlActionStatusT;

typedef struct {
    const char *uid;
    AFB_ApiT api;
    AFB_ReqT request;
    void *context;
    CtlActionStatusT status;
} CtlSourceT;

typedef struct {
    const char *uid;
    const char *info;
    const char *privileges;
    AFB_ApiT api;
    json_object *argsJ;
    CtlActionTypeT type;
    union {
        struct {
            const char* api;
            const char* verb;
        } subcall;

        struct {
            const char* plugin;
            const char* funcname;
        } lua;

        struct {
            const char* funcname;
            int (*callback)(CtlSourceT *source, json_object *argsJ, json_object *queryJ);
            CtlPluginT *plugin;
        } cb;
    } exec;
} CtlActionT;

extern CtlPluginT *ctlPlugins;

typedef int(*DispatchPluginInstallCbT)(CtlPluginT *plugin, void* handle);

#define MACRO_STR_VALUE(arg) #arg
#define CTLP_CAPI_REGISTER(pluglabel) CtlPluginMagicT CtlPluginMagic={.uid=pluglabel,.magic=CTL_PLUGIN_MAGIC}; struct afb_binding_data_v2;
#define CTLP_ONLOAD(plugin, handle) void* CtlPluginOnload(CtlPluginT *plugin, void* handle)
#define CTLP_CAPI(funcname, source, argsJ, queryJ) int funcname(CtlSourceT *source, json_object* argsJ, json_object* queryJ)

// LUA2c Wrapper macro. Allows to call C code from Lua script
typedef int (*Lua2cFunctionT)(CtlSourceT *source, json_object *argsJ, json_object **responseJ);
typedef int (*Lua2cWrapperT) (void*luaHandle, const char *funcname, Lua2cFunctionT callback);

#define CTLP_LUA_REGISTER(pluglabel) Lua2cWrapperT Lua2cWrap; CTLP_CAPI_REGISTER(pluglabel);
#define CTLP_LUA2C(funcname, source, argsJ, responseJ) static int funcname (CtlSourceT* source, json_object* argsJ, json_object** responseJ);\
        int lua2c_ ## funcname (void* luaState){return((*Lua2cWrap)(luaState, MACRO_STR_VALUE(funcname), funcname));};\
        static int funcname (CtlSourceT* source, json_object* argsJ, json_object** responseJ)

#ifdef __cplusplus
}
#endif

#endif /* _CTL_PLUGIN_INCLUDE_ */