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cwmutex.h : Added signalCondVar().

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This commit is contained in:
kevin 2021-01-20 13:07:36 -05:00
parent ab37affd10
commit 2fbd8b690f
2 changed files with 23 additions and 2 deletions
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20
cwMutex.cpp
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@ -27,10 +27,10 @@ namespace cw
int sysRC; int sysRC;
if((sysRC = pthread_cond_destroy(&p->cvar)) != 0) if((sysRC = pthread_cond_destroy(&p->cvar)) != 0)
cwLogSysError(kObjFreeFailRC,sysRC,"Thread condition var. destroy failed."); rc = cwLogSysError(kObjFreeFailRC,sysRC,"Thread condition var. destroy failed.");
else else
if((sysRC = pthread_mutex_destroy(&p->mutex)) != 0) if((sysRC = pthread_mutex_destroy(&p->mutex)) != 0)
cwLogSysError(kObjFreeFailRC,sysRC,"Thread mutex destroy failed."); rc = cwLogSysError(kObjFreeFailRC,sysRC,"Thread mutex destroy failed.");
else else
mem::release(p); mem::release(p);
@ -53,6 +53,8 @@ cw::rc_t cw::mutex::create( handle_t& h )
else else
if((sysRC = pthread_cond_init(&p->cvar,NULL)) != 0 ) if((sysRC = pthread_cond_init(&p->cvar,NULL)) != 0 )
cwLogSysError(kObjAllocFailRC,sysRC,"Thread Condition var. create failed."); cwLogSysError(kObjAllocFailRC,sysRC,"Thread Condition var. create failed.");
h.set(p);
return rc; return rc;
} }
@ -155,3 +157,17 @@ cw::rc_t cw::mutex::waitOnCondVar( handle_t h, bool lockThenWaitFl, unsigned tim
} }
cw::rc_t cw::mutex::signalCondVar( handle_t h)
{
rc_t rc = kOkRC;
mutex_t* p = _handleToPtr(h);
int sysRC;
if((sysRC = pthread_cond_signal(&p->cvar)) != 0 )
rc = cwLogSysError(kOpFailRC,sysRC,"Thread cond var. signaling failed.");
return rc;
}

5
cwMutex.h
View File

@ -14,8 +14,13 @@ namespace cw
rc_t lock( handle_t h ); rc_t lock( handle_t h );
rc_t unlock( handle_t h ); rc_t unlock( handle_t h );
// Set 'lockThenWaitFl' if the function should lock the mutex prior to waiting.
// If 'lockThenWaitFl' is false then the function assumes the mutex is already locked
// and directly waits. If 'lockThenWaitFl' is set and the mutex is not already locked
// then the result is undefined.
rc_t waitOnCondVar( handle_t h, bool lockThenWaitFl, unsigned timeOutMs ); rc_t waitOnCondVar( handle_t h, bool lockThenWaitFl, unsigned timeOutMs );
rc_t signalCondVar( handle_t h);
} }
} }