diff options
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/module-template.h | 48 | ||||
| -rw-r--r-- | runtime/modules.c | 7 | ||||
| -rw-r--r-- | runtime/modules.h | 2 | ||||
| -rw-r--r-- | runtime/rsyslog.h | 7 |
4 files changed, 62 insertions, 2 deletions
diff --git a/runtime/module-template.h b/runtime/module-template.h index 8d7e2328..95ac2863 100644 --- a/runtime/module-template.h +++ b/runtime/module-template.h @@ -306,6 +306,50 @@ static rsRetVal tryResume(instanceData __attribute__((unused)) *pData)\ } +/* Config scoping system. + * save current config scope and start a new one. Note that we do NOT implement a + * stack. Exactly one scope can be saved. + * We assume standard naming conventions (local confgSettings_t holds all + * config settings and MUST have been defined before this macro is being used!). + * Note that initConfVars() must be defined locally as well. + */ +#define SCOPING_SUPPORT \ +static rsRetVal initConfVars(void);\ +static configSettings_t cs; /* our current config settings */ \ +static configSettings_t cs_save; /* our saved (scope!) config settings */ \ +static rsRetVal newScope(void) \ +{ \ + DEFiRet; \ + memcpy(&cs_save, &cs, sizeof(cs)); \ + iRet = initConfVars(); \ + RETiRet; \ +} \ +static rsRetVal restoreScope(void) \ +{ \ + DEFiRet; \ + memcpy(&cs, &cs_save, sizeof(cs)); \ + RETiRet; \ +} +/* initConfVars() + * This entry point is called to check if a module can resume operations. This + * happens when a module requested that it be suspended. In suspended state, + * the engine periodically tries to resume the module. If that succeeds, normal + * processing continues. If not, the module will not be called unless a + * tryResume() call succeeds. + * Returns RS_RET_OK, if resumption succeeded, RS_RET_SUSPENDED otherwise + * rgerhard, 2007-08-02 + */ +#define BEGINinitConfVars \ +static rsRetVal initConfVars(void)\ +{\ + DEFiRet; + +#define CODESTARTinitConfVars + +#define ENDinitConfVars \ + RETiRet;\ +} + /* queryEtryPt() */ @@ -358,6 +402,10 @@ static rsRetVal queryEtryPt(uchar *name, rsRetVal (**pEtryPoint)())\ *pEtryPoint = freeInstance;\ } else if(!strcmp((char*) name, "parseSelectorAct")) {\ *pEtryPoint = parseSelectorAct;\ + } else if(!strcmp((char*) name, "newScope")) {\ + *pEtryPoint = newScope;\ + } else if(!strcmp((char*) name, "restoreScope")) {\ + *pEtryPoint = restoreScope;\ } else if(!strcmp((char*) name, "isCompatibleWithFeature")) {\ *pEtryPoint = isCompatibleWithFeature;\ } else if(!strcmp((char*) name, "tryResume")) {\ diff --git a/runtime/modules.c b/runtime/modules.c index d7362753..73a0012c 100644 --- a/runtime/modules.c +++ b/runtime/modules.c @@ -350,8 +350,7 @@ static modInfo_t *GetNxt(modInfo_t *pThis) /* this function is like GetNxt(), but it returns pointers to - * modules of specific type only. As we currently deal just with output modules, - * it is a dummy, to be filled with real code later. + * modules of specific type only. * rgerhards, 2007-07-24 */ static modInfo_t *GetNxtType(modInfo_t *pThis, eModType_t rqtdType) @@ -461,6 +460,8 @@ doModInit(rsRetVal (*modInit)(int, int*, rsRetVal(**)(), rsRetVal(*)(), modInfo_ CHKiRet((*pNew->modQueryEtryPt)((uchar*)"doAction", &pNew->mod.om.doAction)); CHKiRet((*pNew->modQueryEtryPt)((uchar*)"parseSelectorAct", &pNew->mod.om.parseSelectorAct)); CHKiRet((*pNew->modQueryEtryPt)((uchar*)"tryResume", &pNew->tryResume)); + CHKiRet((*pNew->modQueryEtryPt)((uchar*)"newScope", &pNew->mod.om.newScope)); + CHKiRet((*pNew->modQueryEtryPt)((uchar*)"restoreScope", &pNew->mod.om.restoreScope)); /* try load optional interfaces */ localRet = (*pNew->modQueryEtryPt)((uchar*)"doHUP", &pNew->doHUP); if(localRet != RS_RET_OK && localRet != RS_RET_MODULE_ENTRY_POINT_NOT_FOUND) @@ -589,6 +590,8 @@ static void modPrintList(void) dbgprintf("\tparseSelectorAct: 0x%lx\n", (unsigned long) pMod->mod.om.parseSelectorAct); dbgprintf("\ttryResume: 0x%lx\n", (unsigned long) pMod->tryResume); dbgprintf("\tdoHUP: 0x%lx\n", (unsigned long) pMod->doHUP); + dbgprintf("\tnewScope: 0x%lx\n", (unsigned long) pMod->mod.om.newScope); + dbgprintf("\trestoreScope: 0x%lx\n", (unsigned long) pMod->mod.om.restoreScope); dbgprintf("\tBeginTransaction: 0x%lx\n", (unsigned long) ((pMod->mod.om.beginTransaction == dummyBeginTransaction) ? 0 : pMod->mod.om.beginTransaction)); diff --git a/runtime/modules.h b/runtime/modules.h index 49586e8d..556a3e34 100644 --- a/runtime/modules.h +++ b/runtime/modules.h @@ -117,6 +117,8 @@ struct modInfo_s { rsRetVal (*doAction)(uchar**, unsigned, void*); rsRetVal (*endTransaction)(void*); rsRetVal (*parseSelectorAct)(uchar**, void**,omodStringRequest_t**); + rsRetVal (*newScope)(void); + rsRetVal (*restoreScope)(void); } om; struct { /* data for library modules */ } lm; diff --git a/runtime/rsyslog.h b/runtime/rsyslog.h index 38de1043..3cda26fb 100644 --- a/runtime/rsyslog.h +++ b/runtime/rsyslog.h @@ -606,6 +606,13 @@ rsRetVal rsrtExit(void); int rsrtIsInit(void); rsRetVal rsrtSetErrLogger(rsRetVal (*errLogger)(int, uchar*)); +/* this define below is (later) intended to be used to implement empty + * structs. TODO: check if compilers supports this and, if not, define + * a dummy variable. This requires review of where in code empty structs + * are already defined. -- rgerhards, 2010-07-26 + */ +#define EMPTY_STRUCT + #endif /* multi-include protection */ /* vim:set ai: */ |