cosmopolitan/test/libc/thread/setitimer_test.c
Jōshin e16a7d8f3b
flip et / noet in modelines
`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/'
```
2023-12-07 22:17:11 -05:00

111 lines
4.4 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ 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/atomic.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/itimerval.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigset.h"
#include "libc/calls/struct/timeval.h"
#include "libc/calls/ucontext.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/kprintf.h"
#include "libc/limits.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/itimer.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sicode.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
#include "libc/time/time.h"
atomic_int gotsig;
atomic_int gottid;
void SetUpOnce(void) {
ASSERT_SYS(0, 0, pledge("stdio proc", 0));
}
void SetUp(void) {
gotsig = 0;
}
TEST(setitimer, badTimer_isInvalid) {
struct itimerval it = {{0, 0}, {0, 200000}};
ASSERT_SYS(EINVAL, -1, setitimer(INT_MIN, &it, 0));
}
TEST(setitimer, defaultActionIsToKillProcess) {
SPAWN(fork);
struct itimerval singleshot = {{0}, {0, 100}};
ASSERT_SYS(0, 0, setitimer(ITIMER_REAL, &singleshot, 0));
pause();
TERMS(SIGALRM);
}
void OnSigAlrm(int sig, siginfo_t *si, void *ctx) {
EXPECT_EQ(SIGALRM, sig);
EXPECT_EQ(SIGALRM, si->si_signo);
gottid = gettid();
gotsig = sig;
}
TEST(setitimer, asynchronousDelivery) {
struct itimerval it = {{0, 0}, {0, 200000}};
struct sigaction sa = {.sa_sigaction = OnSigAlrm,
.sa_flags = SA_RESETHAND | SA_SIGINFO};
sigaction(SIGALRM, &sa, 0);
ASSERT_EQ(0, setitimer(ITIMER_REAL, &it, 0));
while (!gotsig) {
}
ASSERT_EQ(gettid(), gottid);
ASSERT_EQ(SIGALRM, gotsig);
ASSERT_EQ(SIG_DFL, signal(SIGALRM, SIG_DFL));
}
TEST(setitimer, testSingleShot) {
sigset_t block, oldmask;
struct itimerval it = {{0, 0}, {0, 10000}};
struct sigaction sa = {.sa_sigaction = OnSigAlrm,
.sa_flags = SA_RESETHAND | SA_SIGINFO};
sigemptyset(&block);
sigaction(SIGALRM, &sa, 0);
sigaddset(&block, SIGALRM);
EXPECT_EQ(0, sigprocmask(SIG_BLOCK, &block, &oldmask));
ASSERT_EQ(0, setitimer(ITIMER_REAL, &it, 0));
sigdelset(&block, SIGALRM);
EXPECT_EQ(-1, sigsuspend(&block));
EXPECT_EQ(0, sigprocmask(SIG_SETMASK, &oldmask, 0));
ASSERT_EQ(gettid(), gottid);
ASSERT_EQ(SIGALRM, gotsig);
}
TEST(setitimer, notInheritedAcrossFork) {
struct itimerval disarm = {0};
struct itimerval singleshot = {{0}, {100}};
ASSERT_SYS(0, 0, setitimer(ITIMER_REAL, &singleshot, 0));
SPAWN(fork);
struct itimerval it;
ASSERT_SYS(0, 0, setitimer(ITIMER_REAL, 0, &it));
ASSERT_TRUE(timeval_iszero(it.it_value));
EXITS(0);
ASSERT_SYS(0, 0, setitimer(ITIMER_REAL, &disarm, 0));
}