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Top Forums Programming Segment-fault handling for pthreads Post 302700393 by jim mcnamara on Thursday 13th of September 2012 10:45:20 AM
Old 09-13-2012
The only possibility I see for a problem on that line is:
the
Code:
 pthread_mutex_t *mutex

pointer variable is probably NULL or has been subject to arithmetic change (++ or --), which usually called an off-by-one error, or the mutex variable was never initalized to NULL to start with.

The problem is the pointer.

FWIW:
I do not see where you release the mutex after you call pthread_mutex_trylock and it returns success...
This User Gave Thanks to jim mcnamara For This Post:
 

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mLock(3)							   util/ulocks.h							  mLock(3)

NAME
mLock - lock a mutex. SYNOPSIS
#include <util/ulocks.h> NEOERR *mLock(pthread_mutex_t *mutex); ARGUMENTS
mutex - mutex to lock. DESCRIPTION
Locks the mutex <mutex>. This call blocks until the mutex is acquired. MT-Level: Safe. RETURN VALUE
None. SEE ALSO
mCreate(3), fCreate(3), mUnlock(3), fUnlock(3), cBroadcast(3), cSignal(3), fFind(3), cDestroy(3), cCreate(3), mDestroy(3), cWait(3), fLock(3), fDestroy(3), mLock ClearSilver 12 July 2007 mLock(3)
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