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