pthread_condattr_getclockStandard C Library Functpthread_condattr_getclock(3C)NAME
pthread_condattr_getclock, pthread_condattr_setclock - get and set the
clock selection condition variable attribute
SYNOPSIS
cc -mt [ flag... ] file... [ library... ]
#include <pthread.h>
int pthread_condattr_getclock(const pthread_condattr_t *restrict attr,
clockid_t *restrict clock_id);
int pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t
clock_id);
DESCRIPTION
The pthread_condattr_getclock() function obtains the value of the clock
attribute from the attributes object referenced by attr. The
pthread_condattr_setclock() function sets the clock attribute in an
initialized attributes object referenced by attr. If pthread_con‐
dattr_setclock() is called with a clock_id argument that refers to a
CPU-time clock, the call fails.
The clock attribute is the clock ID of the clock that is used to mea‐
sure the timeout service of pthread_cond_timedwait(3C). The default
value of the clock attribute refers to the system clock.
RETURN VALUES
Upon successful completion, the pthread_condattr_getclock() function
returns 0 and stores the value of the clock attribute of attr into the
object referenced by the clock_id argument. Otherwise, an error number
is returned to indicate the error.
Upon successful completion, the pthread_condattr_setclock() function
returns 0. Otherwise, an error number is returned to indicate the
error.
ERRORS
These functions may fail if:
EINVAL The value specified by attr is invalid.
The pthread_condattr_setclock() function may fail if:
EINVAL The value specified by clock_id does not refer to a
known clock, or is a CPU-time clock.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Standard │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOpthread_cond_init(3C), pthread_cond_timedwait(3C), pthread_con‐
dattr_destroy(3C), pthread_condattr_getpshared(3C), pthread_create(3C),
pthread_mutex_init(3C), attributes(5), standards(5)SunOS 5.10 30 Jan 2004 pthread_condattr_getclock(3C)
