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Set the clock attribute of a condition-variable attribute object
#include <pthread.h>
int pthread_condattr_setclock(
pthread_condattr_t * attr,
clockid_t id );
- attr
- A pointer to the pthread_condattr_t object for which you
want to set the clock.
You must have initialized this object by calling
pthread_condattr_init()
before calling pthread_condattr_setclock().
- id
- A clockid_t object that specifies the ID of the clock
that you want to use for the condition variable.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The pthread_condattr_setclock() function sets the
clock attribute in an initialized attributes object referenced by attr.
If pthread_condattr_setclock() is called with an id argument
that refers to a CPU-time clock, the call fails.
The clock attribute is the clock ID of the clock that you want to use to
measure the timeout service of
pthread_cond_timedwait().
The default value of the clock attribute refers to the system clock.
- EOK
- Success.
- EINVAL
- Invalid value attr.
POSIX 1003.1 THR CS
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
pthread_cond_init(),
pthread_cond_timedwait(),
pthread_condattr_destroy(),
pthread_condattr_getclock(),
pthread_condattr_getpshared(),
pthread_condattr_init(),
pthread_condattr_setpshared(),
pthread_create()
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