pthread_self — obtain ID of the calling thread
Compile and link with
returns the ID of the calling thread. This is the same value
that is returned in
the pthread_create(3) call that
created this thread.
For an explanation of the terms used in this section, see attributes(7).
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)
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).
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Copyright (c) 2008 Linux Foundation, written by Michael Kerrisk
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