NAME
thr_self —
return thread identifier for the
calling thread
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/thr.h>
int
thr_self(long
*id);
DESCRIPTION
Thethr_self()
system call stores the system-wide thread identifier for the current
kernel-scheduled thread in the variable pointed by the argument
id.
The thread identifier is an integer in the range from
PID_MAX + 2 (10002) to
INT_MAX. The thread identifier is guaranteed to be
unique at any given time, for each running thread in the system. After the
thread exits, the identifier may be reused.
RETURN VALUES
If successful, thr_self() will return
zero, otherwise -1 is returned, and errno is set to
indicate the error.
ERRORS
The thr_self() operation may return the
following errors:
- [
EFAULT] - The memory pointed to by the id argument is not valid.
SEE ALSO
thr_exit(2), thr_kill(2), thr_kill2(2), thr_new(2), thr_set_name(2), _umtx_op(2), pthread_getthreadid_np(3), pthread_self(3)
STANDARDS
The thr_self() system call is non-standard
and is used by library “libthr” to
implement IEEE Std 1003.1-2001
(“POSIX.1”)
pthread(3) functionality.