pthread_rwlockattr_init(3) Library Functions Manual pthread_rwlockattr_init(3)
NAME
pthread_rwlockattr_init - Initialize a read-write lock attributes object.
LIBRARY
DECthreads POSIX 1003.1c Library (libpthread.so)
SYNOPSIS
#include <pthread.h>
int pthread_rwlockattr_init(
pthread_rwlockattr_t *attr);
PARAMETERS
Address of the read-write lock attributes object to be initialized.
DESCRIPTION
This routine initializes the read-write lock attributes object referenced by attr and sets its attributes with default values.
The results of calling this routine are undefined if attr references an already initialized read-write lock attributes object.
After an initialized read-write lock attributes object has been used to initialize one or more read-write lock objects, any operation on
that attributes object (including destruction) has no effect on those read-write lock objects.
RETURN VALUES
If an error condition occurs, this routine returns an integer value indicating the type of error. Possible return values are as follows:
Successful completion. Insufficient memory exists to initialize the read-write lock attributes object.
ERRORS
None
RELATED INFORMATION
Functions: pthread_rwlockattr_destroy(3), pthread_rwlockattr_getpshared(3), pthread_rwlockattr_setpshared(3), pthread_rwlock_init(3)
Manuals: Guide to DECthreads and Programmer's Guide
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pthread_rwlockattr_init(3)
