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Create a read-write lock attribute object
#include <pthread.h>
int pthread_rwlockattr_init( 
       pthread_rwlockattr_t* attr );
libc
The pthread_rwlockattr_init() function initializes the specified read-write lock attribute object to its default values.
Changes made to a read-write lock attribute object changes after it's been used to initialize a read-write lock won't affect the previously initialized read-write locks.
| Safety: | |
|---|---|
| Cancellation point | No | 
| Interrupt handler | No | 
| Signal handler | Yes | 
| Thread | Yes | 
pthread_rwlockattr_destroy(), pthread_rwlockattr_getpshared(), pthread_rwlockattr_setpshared()
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