NAME
pthreadself - obtain ID of the calling thread SYNOPSIS
#include
pthreadt pthreadself(void); Compile and link with -pthread. DESCRIPTION The pthreadself() function returns the ID of the calling thread. This is the same value that is returned in *thread in the pthreadcreate(3) call that created this thread. RETURN VALUE This function always succeeds, returning the calling thread's ID. ERRORS This function always succeeds. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌───────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├───────────────┼───────────────┼─────────┤
│pthreadself() │ Thread safety │ MT-Safe │ └───────────────┴───────────────┴─────────┘ 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 pthreadt can't portably be compared using the C equality operator (==); use pthreadequal(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 pthreadself() is not the same thing as the kernel thread ID returned by a call to gettid(2). SEE ALSO pthreadcreate(3), pthreadequal(3), pthreads(7) COLOPHON
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Linux 2008-10-24 PTHREADSELF(3)