Technical Reference: Base Operating System and Extensions, Volume 1

PTHREAD_MUTEX_INITIALIZER Macro

Purpose

Initializes a static mutex with default attributes.

Library

Threads Library (libpthreads.a)

Syntax

#include <pthread.h>

static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;

Description

The PTHREAD_MUTEX_INITIALIZER macro initializes the static mutex mutex, setting its attributes to default values. This macro should only be used for static mutexes, as no error checking is performed.

Note

The pthread.h header file must be the first included file of each source file using the threads library. Otherwise, the -D_THREAD_SAFE compilation flag should be used, or the cc_r compiler used. In this case, the flag is automatically set.

Related Information

The pthread_mutex_init (pthread_mutex_init or pthread_mutex_destroy Subroutine) subroutine.

Using Mutexes in AIX 5L Version 5.2 General Programming Concepts: Writing and Debugging Programs.

Threads Library Quick Reference in AIX 5L Version 5.2 General Programming Concepts: Writing and Debugging Programs.