mirror of
https://github.com/jart/cosmopolitan.git
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fec396037a
We now have a high-quality clone() implementation for creating lightweight threads on Linux/Windows/FreeBSD/NetBSD/OpenBSD.
61 lines
2.7 KiB
C
61 lines
2.7 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 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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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/calls/strace.internal.h"
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#include "libc/dce.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/nt/enum/threadaccess.h"
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#include "libc/nt/runtime.h"
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#include "libc/nt/thread.h"
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#include "libc/sysv/errfuns.h"
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static textwindows int sys_tkill_nt(int tid, int sig) {
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int rc;
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int64_t hand;
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if ((hand = OpenThread(kNtThreadTerminate, false, tid))) {
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if (TerminateThread(hand, 128 + sig)) {
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rc = 0;
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} else {
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rc = __winerr();
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}
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CloseHandle(hand);
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} else {
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rc = esrch();
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}
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return rc;
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}
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/**
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* Kills thread.
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*
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* @param tid is thread id
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* @param sig does nothing on xnu
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* @return 0 on success, or -1 w/ errno
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*/
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int tkill(int tid, int sig) {
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int rc;
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if (!IsWindows()) {
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rc = sys_tkill(tid, sig, 0);
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} else {
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rc = sys_tkill_nt(tid, sig);
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}
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STRACE("tkill(%d, %G) → %d% m", tid, sig, rc);
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return rc;
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}
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