pthread_rwlockattr_setpshared()

Set the process-shared attribute of a read-write lock attribute object

Synopsis:

#include <pthread.h>

int pthread_rwlockattr_setpshared(
       pthread_rwlockattr_t* attr,
       int pshared );

Arguments:

attr
A pointer to the pthread_rwlockattr_t object that you want to set the attribute for.
pshared
The new value of the process-shared attribute; one of:
  • PTHREAD_PROCESS_SHARED — let any thread with access to the read-write lock object's memory operate it, even if those threads are in different processes.
  • PTHREAD_PROCESS_PRIVATE — limit access to threads in the current process.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The pthread_rwlockattr_setpshared() function sets the process-shared attribute for the read-write lock attribute object specified by attr to pshared.

Returns:

EOK
Success.
EINVAL
The pshared argument is invalid.

Classification:

POSIX 1003.1 THR TSH

Safety:  
Cancellation point No
Interrupt handler No
Signal handler Yes
Thread Yes

Last modified: 2013-12-23

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