pthread_mutexattr_setwakeup_np()
Set the wake-up attribute of a mutex
Synopsis:
#include <pthread.h> int pthread_mutexattr_setwakeup_np( pthread_mutexattr_t *attr, int wakeup );
Arguments:
- attr
- A pointer to the pthread_mutexattr_t object that you want to set the attribute in.
- wakeup
- The new value for the attribute; one of:
- PTHREAD_WAKEUP_DISABLE
- PTHREAD_WAKEUP_ENABLE
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The pthread_mutexattr_setwakeup_np() function sets the wake-up attribute of the given mutex. If this attribute is enabled, a thread can call pthread_mutex_wakeup_np() to unblock any threads that are waiting for the mutex.
The np in these functions' names stands for non-POSIX.
Returns:
EOK
Classification:
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | Yes |
Signal handler | Yes |
Thread | Yes |