PTHREAD_COND_SIGNAL(3) |
FreeBSD Library Functions Manual |
PTHREAD_COND_SIGNAL(3) |
NAME
pthread_cond_signal —
unblock a thread waiting for a condition variable
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include < pthread.h>
int
pthread_cond_signal( pthread_cond_t *cond);
DESCRIPTION
The
pthread_cond_signal() function unblocks one thread waiting for the condition variable
cond.
RETURN VALUES
If successful, the
pthread_cond_signal() function will return zero, otherwise an error number will be returned to indicate the error.
ERRORS
The
pthread_cond_signal() function will fail if:
-
[
EINVAL]
-
The value specified by
cond is invalid.
STANDARDS
The
pthread_cond_signal() function conforms to ISO/IEC 9945-1:1996 (“POSIX.1”).