NAME

pthread_cond_signal — unblock a thread waiting for a condition variable

SYNOPSIS

#include <pthread.h>

int
pthread_cond_signal(pthread_cond_t *cond);

DESCRIPTION

The pthread_cond_signal() function unblocks at least 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

pthread_cond_signal() will fail if:

[EINVAL]

The value specified by cond is invalid.

SEE ALSO

pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_init(3), pthread_cond_timedwait(3), pthread_cond_wait(3)

STANDARDS

pthread_cond_signal() conforms to ISO/IEC 9945-1:1996 (“POSIX.1”).