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Lock a sleepon
#include <pthread.h>
int _sleepon_lock( sleepon_t * l );
- l
- A pointer to a sleepon_t that you created by calling
_sleepon_init().
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The _sleepon_lock() function locks the mutex associated with the sleepon
structure, l.
You must call this function before calling
_sleepon_wait(),
_sleepon_signal(),
or
_sleepon_broadcast().
- EOK
- Success.
- EAGAIN
- Insufficient system resources were available to lock the mutex.
- EDEADLK
- The calling thread already owns mutex, and the mutex
doesn't allow recursive behavior.
- EINVAL
- Invalid mutex.
The _sleepon_lock() function returns the same values as
pthread_mutex_lock().
QNX Neutrino
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
pthread_mutex_lock(),
_sleepon_broadcast(),
_sleepon_destroy(),
_sleepon_init(),
_sleepon_signal(),
_sleepon_unlock(),
_sleepon_wait()
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