/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :viâ
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â Copyright 2022 Justine Alexandra Roberts Tunney                              â
â                                                                              â
â Permission to use, copy, modify, and/or distribute this software for         â
â any purpose with or without fee is hereby granted, provided that the         â
â above copyright notice and this permission notice appear in all copies.      â
â                                                                              â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             â
â PERFORMANCE OF THIS SOFTWARE.                                                â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#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/ucontext.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/testlib.h"
#include "libc/time/time.h"

bool gotsig;

void SetUpOnce(void) {
  ASSERT_SYS(0, 0, pledge("stdio", 0));
}

void OnSigAlrm(int sig, siginfo_t *si, void *ctx) {
  EXPECT_EQ(SIGALRM, sig);
  EXPECT_EQ(SIGALRM, si->si_signo);
  gotsig = true;
}

TEST(setitimer, testSingleShot) {
  sigset_t block, oldmask;
  struct sigaction oldalrm;
  struct itimerval it = {{0, 0}, {0, 10000}};
  struct sigaction sa = {.sa_sigaction = OnSigAlrm,
                         .sa_flags = SA_RESETHAND | SA_SIGINFO};
  gotsig = false;
  sigemptyset(&block);
  sigaddset(&block, SIGALRM);
  EXPECT_EQ(0, sigprocmask(SIG_BLOCK, &block, &oldmask));
  ASSERT_EQ(0, sigaction(SIGALRM, &sa, &oldalrm));
  ASSERT_EQ(0, setitimer(ITIMER_REAL, &it, 0));
  sigdelset(&block, SIGALRM);
  EXPECT_EQ(-1, sigsuspend(&block));
  EXPECT_EQ(0, sigprocmask(SIG_SETMASK, &oldmask, 0));
  EXPECT_EQ(0, sigaction(SIGUSR1, &oldalrm, 0));
  EXPECT_EQ(true, gotsig);
}
