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Implement sigpending for sysv and nt (#597)

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Gavin Hayes 2022-09-07 08:38:12 -04:00 • committed by GitHub
parent 4339d9f15e
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9 changed files with 186 additions and 3 deletions
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test/libc/calls/sigpending_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Gavin Arthur Hayes │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigset.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/testlib.h"
static unsigned OnSignalCnt = 0;
void OnSignal(int sig, siginfo_t *si, void *ctx) {
OnSignalCnt++;
EXPECT_EQ(SIGUSR1, sig);
}
TEST(sigpending, test) {
sigset_t pending;
sigfillset(&pending);
EXPECT_EQ(0, sigpending(&pending));
unsigned cnt = 0;
for (unsigned sig = 1; sig < NSIG; sig++) {
if (sigismember(&pending, sig)) {
cnt++;
}
}
EXPECT_EQ(0, cnt);
struct sigaction sa = {.sa_sigaction = OnSignal, .sa_flags = SA_SIGINFO};
ASSERT_EQ(0, sigaction(SIGUSR1, &sa, NULL));
sigset_t blocked;
sigemptyset(&blocked);
sigaddset(&blocked, SIGUSR1);
ASSERT_EQ(0, sigprocmask(SIG_SETMASK, &blocked, NULL));
ASSERT_EQ(0, raise(SIGUSR1));
sigfillset(&pending);
EXPECT_EQ(0, sigpending(&pending));
cnt = 0;
for (unsigned sig = 1; sig < NSIG; sig++) {
if (sigismember(&pending, sig)) {
cnt++;
}
}
EXPECT_EQ(1, cnt);
EXPECT_EQ(1, sigismember(&pending, SIGUSR1));
ASSERT_NE(SIG_ERR, signal(SIGUSR1, SIG_IGN));
sigemptyset(&pending);
EXPECT_EQ(0, sigpending(&pending));
cnt = 0;
for (unsigned sig = 1; sig < NSIG; sig++) {
if (sigismember(&pending, sig)) {
cnt++;
}
}
EXPECT_EQ(0, cnt);
ASSERT_EQ(0, sigaction(SIGUSR1, &sa, NULL));
ASSERT_EQ(0, raise(SIGUSR1));
EXPECT_EQ(0, sigpending(&pending));
cnt = 0;
for (unsigned sig = 1; sig < NSIG; sig++) {
if (sigismember(&pending, sig)) {
cnt++;
}
}
EXPECT_EQ(1, cnt);
EXPECT_EQ(1, sigismember(&pending, SIGUSR1));
sigemptyset(&blocked);
ASSERT_EQ(0, sigprocmask(SIG_SETMASK, &blocked, NULL));
EXPECT_EQ(0, sigpending(&pending));
cnt = 0;
for (unsigned sig = 1; sig < NSIG; sig++) {
if (sigismember(&pending, sig)) {
cnt++;
}
}
EXPECT_EQ(0, cnt);
EXPECT_EQ(1, OnSignalCnt);
}