pthread_equal.txt

来自「Pthread lib库完整说明文档」· 文本 代码 · 共 62 行

           
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AIX Version 4.3 Base Operating System and Extensions Technical Reference, Volume
                                       1
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pthread_equal Subroutine

Purpose

Compares two thread IDs.

Library

Threads Library (libpthreads.a)

Syntax

#include <pthread.h>

int pthread_equal (pthread_t t1, pthread_t t2);

Description

The pthread_equal subroutine compares the thread IDs thread1 and thread2. Since
the thread IDs are opaque objects, it should not be assumed that they can be
compared using the equality operator (==).

    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.

Parameters

thread1 Specifies the first ID to be compared.

thread2 Specifies the second ID to be compared.

Return Values

The pthread_equal function returns a non-zero value if t1 and t2 are equal;
otherwise, zero is returned.

If either t1 or t2 are not valid thread IDs, the behaviour is undefined.

Implementation Specifics

This subroutine is part of the Base Operating System (BOS) Runtime.

Related Information

The pthread_self subroutine, the pthread_create subroutine, the pthread.h file.

Creating Threads in AIX Version 4.3 General Programming Concepts: Writing and
Debugging Programs.

Threads Library Quick Reference in AIX Version 4.3 General Programming Concepts:
Writing and Debugging Programs.
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