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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
4.8 KiB
C
116 lines
4.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set 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/calls/calls.h"
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#include "libc/calls/struct/sigaction.h"
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#include "libc/calls/struct/siginfo.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/runtime/runtime.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/sa.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/xspawn.h"
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volatile bool gotsig1;
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volatile bool gotsig2;
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volatile bool finished;
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void OnSigQueuing(int sig, siginfo_t *si, void *ctx) {
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if (!finished) {
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EXPECT_EQ(SIGUSR2, sig);
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EXPECT_EQ(SIGUSR2, si->si_signo);
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gotsig2 = true;
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} else {
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EXPECT_EQ(SIGUSR1, sig);
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EXPECT_EQ(SIGUSR1, si->si_signo);
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gotsig1 = true;
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}
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}
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TEST(sigsuspend, testSignalQueuingSelf) {
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sigset_t neu, old, bits;
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struct sigaction oldusr1, oldusr2;
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struct sigaction sa = {.sa_sigaction = OnSigQueuing, .sa_flags = SA_SIGINFO};
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gotsig1 = false;
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gotsig2 = false;
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finished = false;
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sigemptyset(&neu);
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sigaddset(&neu, SIGUSR1);
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sigaddset(&neu, SIGUSR2);
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EXPECT_EQ(0, sigprocmask(SIG_BLOCK, &neu, &old));
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ASSERT_EQ(0, sigaction(SIGUSR1, &sa, &oldusr1));
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ASSERT_EQ(0, sigaction(SIGUSR2, &sa, &oldusr2));
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raise(SIGUSR1);
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raise(SIGUSR2);
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sigdelset(&neu, SIGUSR2);
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EXPECT_EQ(false, gotsig2);
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memcpy(&bits, &neu, sizeof(bits));
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ASSERT_EQ(-1, sigsuspend(&neu)); // raises SIGUSR2
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EXPECT_EQ(0, memcmp(&bits, &neu, sizeof(bits))); // constness respected
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EXPECT_EQ(EINTR, errno);
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EXPECT_EQ(true, gotsig2);
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EXPECT_EQ(false, gotsig1);
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finished = true;
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EXPECT_EQ(0, sigprocmask(SIG_SETMASK, &old, NULL)); // raises SIGUSR1
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EXPECT_EQ(true, gotsig1);
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EXPECT_EQ(0, sigaction(SIGUSR1, &oldusr1, 0));
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EXPECT_EQ(0, sigaction(SIGUSR2, &oldusr2, 0));
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}
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TEST(sigsuspend, testSignalQueuingIpc) {
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if (IsWindows()) {
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// xxx: probably need a signal server to do this kind of signalling
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return;
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}
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int pid, ws;
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sigset_t neu, old, bits;
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struct sigaction oldusr1, oldusr2;
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struct sigaction sa = {.sa_sigaction = OnSigQueuing, .sa_flags = SA_SIGINFO};
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gotsig1 = false;
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gotsig2 = false;
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finished = false;
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sigemptyset(&neu);
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sigaddset(&neu, SIGUSR1);
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sigaddset(&neu, SIGUSR2);
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EXPECT_EQ(0, sigprocmask(SIG_BLOCK, &neu, &old));
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ASSERT_EQ(0, sigaction(SIGUSR1, &sa, &oldusr1));
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ASSERT_EQ(0, sigaction(SIGUSR2, &sa, &oldusr2));
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pid = getpid();
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ASSERT_NE(-1, (ws = xspawn(0)));
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if (ws == -2) {
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kill(pid, SIGUSR1);
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kill(pid, SIGUSR2);
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_exit(0);
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}
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sigdelset(&neu, SIGUSR2);
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EXPECT_EQ(false, gotsig2);
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memcpy(&bits, &neu, sizeof(bits));
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ASSERT_EQ(-1, sigsuspend(&neu)); // raises SIGUSR2
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EXPECT_EQ(0, memcmp(&bits, &neu, sizeof(bits))); // constness respected
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EXPECT_EQ(EINTR, errno);
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EXPECT_EQ(true, gotsig2);
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EXPECT_EQ(false, gotsig1);
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finished = true;
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EXPECT_EQ(0, sigprocmask(SIG_SETMASK, &old, NULL)); // raises SIGUSR1
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EXPECT_EQ(true, gotsig1);
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EXPECT_EQ(0, sigaction(SIGUSR1, &oldusr1, 0));
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EXPECT_EQ(0, sigaction(SIGUSR2, &oldusr2, 0));
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}
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