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Manual Pages  — THR_EXIT

NAME

thr_exit – terminate current thread

CONTENTS

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <sys/thr.h>

void
thr_exit(long *state);

DESCRIPTION

This function is intended for implementing threading. Normal applications should call pthread_exit(3) instead.

The thr_exit() system call terminates the current kernel-scheduled thread.

If the state argument is not NULL, the location pointed to by the argument is updated with an arbitrary non-zero value, and an _umtx_op(2) UMTX_OP_WAKE operation is consequently performed on the location.

Attempts to terminate the last thread in the process are silently ignored. Use _exit(2) syscall to terminate the process.

RETURN VALUES

The function does not return a value. A return from the function indicates that the calling thread was the last one in the process.

SEE ALSO

_exit(2), _umtx_op(2), thr_kill(2), thr_kill2(2), thr_new(2), thr_self(2), thr_set_name(2), pthread_exit(3)

STANDARDS

The thr_exit() 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.

HISTORY

The thr_exit() system call first appeared in FreeBSD 5.2 .
THR_EXIT (2) May 5, 2020
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