NAME
_lwp_kill —
send a signal to a light-weight
process
LIBRARY
library “libc”
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
A 0 value indicates that the call succeeded. A -1 return value indicates an error occurred and errno is set to indicate the reason.
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.