mtx_destroy()
QNX SDP8.0C Library ReferenceAPIDeveloper
Destroy a mutex
Synopsis:
#include <threads.h>
void mtx_destroy( mtx_t* mutex );
Arguments:
- mutex
- A pointer to the mtx_t object that you want to destroy.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The mtx_destroy() function destroys the unlocked mutex mutex. You can destroy a locked mutex only if you're its owner. An invalid input mutex or an attempt to destroy a mutex locked by another thread results in an unsuccessful mtx_destroy() call.
The mtx_destroy() function calls the pthread_mutex_destroy() function. Any return from this function gets casted to a void pointer in mtx_destroy(). You cannot use the C11 functions interchangeably with the pthread mutex functions.
Note:
Once you've destroyed a mutex, don't reuse it without reinitializing it by calling
mtx_init().
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Signal handler | Yes |
| Thread | Yes |
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