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_LWP_KILL(2) BSD System Calls Manual _LWP_KILL(2)
_lwp_kill -- send a signal to a light-weight process
Standard C Library (libc, -lc)
_lwp_kill(lwpid_t lwp, int sig);
_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 tar-
get 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.
A 0 value indicates that the call succeeded. A -1 return value indicates an error occurred
and errno is set to indicate the reason.
[EINVAL] sig is not a valid signal number.
[ESRCH] No LWP can be found in the current process corresponding to that specified by lwp.
_lwp_continue(2), _lwp_suspend(2), kill(2), sigaction(2), signal(7)
The _lwp_kill() system call first appeared in NetBSD 5.0.
BSD January 20, 2007 BSD
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