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THR_SELF(2) FreeBSD System Calls Manual THR_SELF(2) NAME thr_self -- return thread identifier for the calling thread LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <sys/thr.h> int thr_self(long *id); DESCRIPTION The thr_self() system call stores the system-wide thread identifier for the current kernel-scheduled thread in the variable pointed by the argu- ment 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 ex- its, 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 1:1 Threading Library (libthr, -lthr) to implement IEEE Std 1003.1-2001 ("POSIX.1") pthread(3) functionality. FreeBSD 13.0 June 1, 2016 FreeBSD 13.0
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | STANDARDS
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