NAME

pthread_rwlockattr_init, pthread_rwlockattr_destroy — initialize 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

pthread_rwlock_init(3)

STANDARDS

Both functions conform to IEEE Std 1003.1-2001 (“POSIX.1”).