Use prefix variable to find controller's plugins

Prefix is the most reliable variable to find files or
variables for a controller, so this lets you access it
wherever it is needed without using global hardcoded
variables.

This helps to search for controller's plugins in several
locations depending on environment variables and hardcoded
variables (CONTROL_PLUGIN_PATH, CONTROL_CONFIG_PATH).

This implies also a change a LUA interpreter loading step to
correctly set the package.path variables with the environment
variables, too.

Correct the missing 'extern' in function declarations.

Depends-On: Ic448ff017e6158bec05895d63688b8968b5c6434

Change-Id: I0ad19242612559d1f4b66b6f9af9e7032d4675a8
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 23 insertions, 20 deletions

diff --git a/ctl-lib/ctl-config.h b/ctl-lib/ctl-config.h
index a174b27..be2113d 100644
--- a/ctl-lib/ctl-config.h
+++ b/ctl-lib/ctl-config.h
@@ -58,6 +58,7 @@ typedef struct ConfigSectionS {
   const char *key;
   const char *uid;
   const char *info;
+  const char *prefix;
   int (*loadCB)(AFB_ApiT apihandle, struct ConfigSectionS *section, json_object *sectionJ);
   void *handle;
   CtlActionT *actions;
@@ -70,6 +71,7 @@ typedef struct {
     const char *version;
     const char *author;
     const char *date;
+    const char *prefix;
     json_object *configJ;
     json_object *requireJ;
     CtlSectionT *sections;
@@ -88,39 +90,40 @@ typedef enum {
 } SectionEnumT;
 
 // ctl-action.c
-CtlActionT *ActionConfig(AFB_ApiT apiHandle, json_object *actionsJ,  int exportApi);
-void ActionExecUID(AFB_ReqT request, CtlConfigT *ctlConfig, const char *uid, json_object *queryJ);
-int ActionExecOne( CtlSourceT *source, CtlActionT* action, json_object *queryJ);
-int ActionLoadOne(AFB_ApiT apiHandle, CtlActionT *action, json_object *, int exportApi);
-int ActionLabelToIndex(CtlActionT* actions, const char* actionLabel);
+extern CtlActionT *ActionConfig(AFB_ApiT apiHandle, json_object *actionsJ,  int exportApi);
+extern void ActionExecUID(AFB_ReqT request, CtlConfigT *ctlConfig, const char *uid, json_object *queryJ);
+extern int ActionExecOne( CtlSourceT *source, CtlActionT* action, json_object *queryJ);
+extern int ActionLoadOne(AFB_ApiT apiHandle, CtlActionT *action, json_object *, int exportApi);
+extern int ActionLabelToIndex(CtlActionT* actions, const char* actionLabel);
 
 // ctl-config.c
-int CtlConfigMagicNew();
-json_object* CtlConfigScan(const char *dirList, const char *prefix) ;
-char* ConfigSearch(AFB_ApiT apiHandle, json_object *responseJ);
-char* CtlConfigSearch(AFB_ApiT apiHandle, const char *dirList, const char *prefix) ;
-void DispatchRequiredApi(AFB_ApiT apiHandle, json_object * requireJ);
-int CtlConfigExec(AFB_ApiT apiHandle, CtlConfigT *ctlConfig) ;
-CtlConfigT *CtlLoadMetaData(AFB_ApiT apiHandle,const char* filepath) ;
-int CtlLoadSections(AFB_ApiT apiHandle, CtlConfigT *ctlHandle, CtlSectionT *sections);
+extern int CtlConfigMagicNew();
+extern json_object* CtlConfigScan(const char *dirList, const char *prefix) ;
+extern char* ConfigSearch(AFB_ApiT apiHandle, json_object *responseJ);
+extern char* CtlConfigSearch(AFB_ApiT apiHandle, const char *dirList, const char *prefix) ;
+extern void DispatchRequiredApi(AFB_ApiT apiHandle, json_object * requireJ);
+extern int CtlConfigExec(AFB_ApiT apiHandle, CtlConfigT *ctlConfig) ;
+extern CtlConfigT *CtlLoadMetaData(AFB_ApiT apiHandle,const char* filepath) ;
+extern CtlConfigT *CtlLoadMetaDataUsingPrefix(AFB_ApiT apiHandle,const char* filepath, const char *prefix) ;
+extern int CtlLoadSections(AFB_ApiT apiHandle, CtlConfigT *ctlHandle, CtlSectionT *sections);
 
 // ctl-event.c
-int EventConfig(AFB_ApiT apihandle, CtlSectionT *section, json_object *actionsJ);
+extern int EventConfig(AFB_ApiT apihandle, CtlSectionT *section, json_object *actionsJ);
 #ifdef AFB_BINDING_PREV3
-void CtrlDispatchApiEvent (AFB_ApiT apiHandle, const char *evtLabel, struct json_object *eventJ);
+extern void CtrlDispatchApiEvent (AFB_ApiT apiHandle, const char *evtLabel, struct json_object *eventJ);
 #else
-void CtrlDispatchV2Event(const char *evtLabel, json_object *eventJ);
+extern void CtrlDispatchV2Event(const char *evtLabel, json_object *eventJ);
 #endif
 
 // ctl-control.c
-int ControlConfig(AFB_ApiT apiHandle, CtlSectionT *section, json_object *actionsJ);
+extern int ControlConfig(AFB_ApiT apiHandle, CtlSectionT *section, json_object *actionsJ);
 
 // ctl-onload.c
-int OnloadConfig(AFB_ApiT apiHandle, CtlSectionT *section, json_object *actionsJ);
+extern int OnloadConfig(AFB_ApiT apiHandle, CtlSectionT *section, json_object *actionsJ);
 
 // ctl-plugin.c
-int PluginConfig(AFB_ApiT UNUSED_ARG(apiHandle), CtlSectionT *section, json_object *pluginsJ);
-int PluginGetCB (AFB_ApiT apiHandle, CtlActionT *action , json_object *callbackJ);
+extern int PluginConfig(AFB_ApiT UNUSED_ARG(apiHandle), CtlSectionT *section, json_object *pluginsJ);
+extern int PluginGetCB (AFB_ApiT apiHandle, CtlActionT *action , json_object *callbackJ);
 
 #ifdef __cplusplus
 }