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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et 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/atomic.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/sigaction.h"
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#include "libc/dce.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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int i, *p;
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void SetUp(void) {
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p = _mapshared(FRAMESIZE);
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}
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void TearDown(void) {
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munmap(p, FRAMESIZE);
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}
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void AtExit3(void) {
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p[i++] = 3;
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}
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void AtExit2(void) {
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p[i++] = 2;
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exit(2);
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}
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void AtExit1(void) {
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p[i++] = 1;
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atexit(AtExit2);
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exit(1);
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}
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// consistent with glibc, musl, freebsd, openbsd & netbsd
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// please note posix says recursion is undefined behavior
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// however, fifo ordering of atexit handlers is specified
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TEST(exit, test) {
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SPAWN(fork);
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atexit(AtExit3);
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atexit(AtExit3);
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atexit(AtExit1);
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exit(0);
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EXITS(2);
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ASSERT_EQ(1, p[0]);
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ASSERT_EQ(2, p[1]);
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ASSERT_EQ(3, p[2]);
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ASSERT_EQ(3, p[3]);
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}
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TEST(exit, narrowing) {
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SPAWN(vfork);
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_Exit(31337);
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EXITS(IsWindows() || IsNetbsd() || IsOpenbsd() ? 31337 : 31337 & 255);
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}
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TEST(exit, exitCode259_wontCauseParentProcessToHangForever) {
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if (!IsWindows()) return;
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SPAWN(vfork);
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_Exit(259);
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EXITS(259);
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}
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TEST(exit, sigkill) {
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int ws, pid;
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atomic_int *ready = _mapshared(4);
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ASSERT_NE(-1, (pid = fork()));
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if (!pid) {
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for (*ready = 1;;) {
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pause();
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}
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}
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while (!*ready) donothing;
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ASSERT_EQ(0, kill(pid, SIGKILL));
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ASSERT_SYS(0, pid, wait(&ws));
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ASSERT_EQ(SIGKILL, ws);
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munmap(ready, 4);
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}
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// NetBSD is the only operating system that ignores SIGPWR by default
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TEST(exit, sigalrm) {
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int ws, pid;
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sighandler_t oldint = signal(SIGALRM, SIG_DFL);
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atomic_int *ready = _mapshared(4);
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ASSERT_NE(-1, (pid = fork()));
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if (!pid) {
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for (*ready = 1;;) {
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pause();
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}
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}
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while (!*ready) donothing;
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ASSERT_EQ(0, kill(pid, SIGALRM));
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ASSERT_SYS(0, pid, wait(&ws));
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ASSERT_EQ(SIGALRM, ws);
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munmap(ready, 4);
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signal(SIGALRM, oldint);
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}
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