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_create(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 only guaranteed to be unique 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 3.25 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/.