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Command: _lwp_kill | Section: 2 | Source: NetBSD | File: _lwp_kill.2
_LWP_KILL(2) FreeBSD System Calls Manual _LWP_KILL(2)
NAME
_lwp_kill - send a signal to a light-weight process
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <lwp.h>
int
_lwp_kill(lwpid_t lwp, int sig);
DESCRIPTION
_lwp_kill() sends the signal specified by sig to the light-weight process
specified by lwp. If the sig argument is given as 0 (zero), _lwp_kill
will test for the existence of the target LWP, but will take no further
action.
Job control signals and uncatchable signals can not be directed to a
specific LWP: if posted with _lwp_kill, they will affect all LWPs in the
process.
Signals will be posted successfully to suspended LWPs, but will not be
handled further until the LWP has been continued.
RETURN VALUES
The _lwp_kill() function returns the value 0 if successful; otherwise the
value -1 is returned and the global variable errno is set to indicate the
error.
ERRORS
[EINVAL] sig is not a valid signal number.
[ESRCH] No LWP can be found in the current process
corresponding to that specified by lwp.
SEE ALSO
_lwp_continue(2), _lwp_suspend(2), kill(2), sigaction(2), signal(7)
HISTORY
The _lwp_kill() system call first appeared in NetBSD 5.0.
FreeBSD 14.1-RELEASE-p8 January 20, 2007 FreeBSD 14.1-RELEASE-p8