55 lines
2.8 KiB
C
55 lines
2.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/dce.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Sends signal to process.
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*
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* The impact of this action can be terminating the process, or
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* interrupting it to request something happen.
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*
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* @param pid can be:
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* >0 signals one process by id
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* =0 signals all processes in current process group
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* -1 signals all processes possible (except init)
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* <-1 signals all processes in -pid process group
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* @param sig can be:
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* >0 can be SIGINT, SIGTERM, SIGKILL, SIGUSR1, etc.
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* =0 is for error checking
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* @return 0 if something was accomplished, or -1 w/ errno
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* @asyncsignalsafe
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*/
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int kill(int pid, int sig) {
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int me;
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if (!IsWindows()) {
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return kill$sysv(pid, sig, 1);
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} else {
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me = getpid();
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if (!pid || pid == me || pid == -me) {
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return raise(sig);
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} else {
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return enosys();
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}
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}
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}
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