PTHREAD_RWLOCKATTR(3) Library Functions Manual PTHREAD_RWLOCKATTR(3)
NAME
pthread_rwlockattr_init, pthread_rwlockattr_destroyinitialize or destroy read/write lock attributes
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include <pthread.h>
int
pthread_rwlockattr_init(pthread_rwlockattr_t *attr);
int
pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);
DESCRIPTION
The pthread_rwlockattr_init() function is used to initialize a read/write lock attributes object.
 
The pthread_rwlockattr_destroy() function is used to destroy a read/write lock attribute object previously created with pthread_rwlockattr_init().
RETURN VALUES
If successful, the pthread_rwlockattr_init() and pthread_rwlockattr_destroy() functions return zero. Otherwise an error number will be returned to indicate the error.
ERRORS
pthread_rwlockattr_init() shall fail if:
[ENOMEM]
Insufficient memory exists to initialize the read/write lock attributes object.
 
pthread_rwlockattr_init() and pthread_rwlockattr_destroy() may fail if:
[EINVAL]
The value specified by attr is invalid.
SEE ALSO
STANDARDS
Both functions conform to IEEE Std 1003.1-2001 (“POSIX.1”).