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LEARN ABOUT CENTOS

pthread_self

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

NAME

       pthread_self - obtain ID of the calling thread

SYNOPSIS

       #include <pthread.h>

       pthread_t pthread_self(void);

       Compile and link with -pthread.

DESCRIPTION

       The  pthread_self()  function returns the ID of the calling thread.  This is the same value that is returned in *thread in the pthread_cre-
       ate(3) call that created this thread.

RETURN VALUE

       This function always succeeds, returning the calling thread's ID.

ERRORS

       This function always succeeds.

CONFORMING TO

       POSIX.1-2001.

NOTES

       POSIX.1 allows an implementation wide freedom in choosing the type used to represent a thread ID; for example, representation using  either
       an  arithmetic  type  or  a structure is permitted.  Therefore, variables of type pthread_t can't portably be compared using the C equality
       operator (==); use pthread_equal(3) instead.

       Thread identifiers should be considered opaque: any attempt to use a thread ID other than in pthreads calls is nonportable and can lead	to
       unspecified results.

       Thread  IDs  are  guaranteed to be unique only within a process.  A thread ID may be reused after a terminated thread has been joined, or a
       detached thread has terminated.

       The thread ID returned by pthread_self() is not the same thing as the kernel thread ID returned by a call to gettid(2).

SEE ALSO

       pthread_create(3), pthread_equal(3), pthreads(7)

COLOPHON

       This page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2008-10-24							   PTHREAD_SELF(3)

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