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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/' ```
105 lines
4.3 KiB
C
105 lines
4.3 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/assert.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/calls/struct/siginfo.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/calls/struct/sigset.internal.h"
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#include "libc/calls/ucontext.h"
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#include "libc/dce.h"
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#include "libc/intrin/kprintf.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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volatile int n;
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void SetUpOnce(void) {
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ASSERT_SYS(0, 0, pledge("stdio proc", 0));
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}
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void OnSig(int sig, siginfo_t *si, void *ctx) {
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++n;
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}
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const char *DescribeMask(void) {
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sigset_t ss;
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_Thread_local static char buf[128];
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unassert(!sigprocmask(SIG_SETMASK, 0, &ss));
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return (DescribeSigset)(buf, 0, &ss);
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}
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TEST(sigprocmask, testMultipleBlockedDeliveries) {
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sigset_t neu, old;
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struct sigaction oldusr1, oldusr2;
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struct sigaction sa = {.sa_sigaction = OnSig, .sa_flags = SA_SIGINFO};
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n = 0;
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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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ASSERT_EQ(0, raise(SIGUSR1));
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ASSERT_EQ(0, raise(SIGUSR2));
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EXPECT_EQ(0, n);
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EXPECT_EQ(0, sigprocmask(SIG_SETMASK, &old, NULL));
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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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ASSERT_EQ(2, n);
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}
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TEST(sigprocmask, testMultipleBlockedDeliveriesOfSameSignal) {
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sigset_t neu, old;
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struct sigaction oldusr2;
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struct sigaction sa = {.sa_sigaction = OnSig, .sa_flags = SA_SIGINFO};
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n = 0;
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sigemptyset(&neu);
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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(SIGUSR2, &sa, &oldusr2));
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ASSERT_EQ(0, raise(SIGUSR2));
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ASSERT_EQ(0, raise(SIGUSR2));
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EXPECT_EQ(0, n);
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EXPECT_EQ(0, sigprocmask(SIG_SETMASK, &old, NULL));
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EXPECT_EQ(0, sigaction(SIGUSR2, &oldusr2, 0));
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if (IsFreebsd()) {
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EXPECT_EQ(2, n);
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} else {
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EXPECT_EQ(1, n);
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}
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}
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TEST(sigprocmask, testBlockingSIGINT) {
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sigset_t neu, old;
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struct sigaction oldsigint;
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struct sigaction sa = {.sa_sigaction = OnSig, .sa_flags = SA_SIGINFO};
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n = 0;
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sigemptyset(&neu);
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sigaddset(&neu, SIGINT);
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EXPECT_EQ(0, sigprocmask(SIG_BLOCK, &neu, &old));
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ASSERT_EQ(0, sigaction(SIGINT, &sa, &oldsigint));
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ASSERT_EQ(0, raise(SIGINT));
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EXPECT_EQ(0, n);
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EXPECT_EQ(0, sigprocmask(SIG_SETMASK, &old, NULL));
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EXPECT_EQ(0, sigaction(SIGINT, &oldsigint, 0));
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}
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