pthread_equal(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

PTHREAD_EQUAL(3)        Linux Programmer's Manual       PTHREAD_EQUAL(3)

NAME         top

       pthread_equal - compare thread IDs

SYNOPSIS         top

       #include <pthread.h>

       int pthread_equal(pthread_t t1, pthread_t t2);

       Compile and link with -pthread.

DESCRIPTION         top

       The pthread_equal() function compares two thread identifiers.

RETURN VALUE         top

       If the two thread IDs are equal, pthread_equal() returns a
       nonzero value; otherwise, it returns 0.

ERRORS         top

       This function always succeeds.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             Attribute     Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │pthread_equal()                       │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008.

NOTES         top

       The pthread_equal() function is necessary because thread IDs
       should be considered opaque: there is no portable way for
       applications to directly compare two pthread_t values.

SEE ALSO         top

       pthread_create(3), pthread_self(3), pthreads(7)

COLOPHON         top

       This page is part of release 5.12 of the Linux man-pages project.
       A description of the project, information about reporting bugs,
       and the latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

Linux                          2021-03-22               PTHREAD_EQUAL(3)

Pages that refer to this page: pthread_create(3)pthread_self(3)pthreads(7)