#include <pthread.h>
int pthread_cond_signal(pthread_cond_t *cond);
The pthread_cond_signal()
function unblocks a single thread blocked on the specified
condition variable. The function has no effect if no threads are
blocked on the condition variable. pthread_cond_signal()
may be called by a thread whether or not it owns the mutex which
threads calling pthread_cond_wait() or
pthread_cond_timedwait()
have associated with the condition variable during their waits.
However, if predictable scheduling behavior is required, then
that mutex should be locked by the thread calling
pthread_cond_signal().
- cond
-
Is the condition variable to signal.
On success, pthread_cond_signal()
returns 0. On error, one of the following values is returned:
- EINVAL
-
cond does not refer to an
initialized condition variable.
- EFAULT
-
cond is an invalid
pointer.
POSIX P1003.1 (1996)
MT-safe.
None.
PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition
- Functions:
- pthread_cond_broadcast(), pthread_cond_init(), pthread_cond_timedwait(), pthread_cond_wait()
PTC MKS Toolkit 10.5 Documentation Build 40.