58 lines · cpp
1//===-- Unittests for setitimer -------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM4// Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#include "hdr/types/struct_itimerval.h"11#include "hdr/types/struct_sigaction.h"12#include "src/signal/sigaction.h"13#include "src/signal/sigemptyset.h"14#include "src/sys/time/setitimer.h"15#include "test/UnitTest/ErrnoCheckingTest.h"16#include "test/UnitTest/ErrnoSetterMatcher.h"17#include "test/UnitTest/Test.h"18 19using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher;20using LlvmLibcSysTimeSetitimerTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;21 22static bool timer_fired(false);23 24extern "C" void handle_sigalrm(int) { timer_fired = true; }25 26TEST_F(LlvmLibcSysTimeSetitimerTest, SmokeTest) {27 libc_errno = 0;28 struct sigaction sa;29 sa.sa_handler = handle_sigalrm;30 LIBC_NAMESPACE::sigemptyset(&sa.sa_mask);31 sa.sa_flags = 0;32 LIBC_NAMESPACE::sigaction(SIGALRM, &sa, nullptr);33 34 struct itimerval timer;35 timer.it_value.tv_sec = 0;36 timer.it_value.tv_usec = 200000;37 timer.it_interval.tv_sec = 0;38 timer.it_interval.tv_usec = 0; // One-shot timer39 40 ASSERT_THAT(LIBC_NAMESPACE::setitimer(0, &timer, nullptr),41 returns(EQ(0)).with_errno(EQ(0)));42 43 while (true) {44 if (timer_fired)45 break;46 }47 48 ASSERT_TRUE(timer_fired);49}50 51TEST_F(LlvmLibcSysTimeSetitimerTest, InvalidRetTest) {52 struct itimerval timer;53 54 // out of range timer type (which)55 ASSERT_THAT(LIBC_NAMESPACE::setitimer(99, &timer, nullptr),56 returns(NE(0)).with_errno(NE(0)));57}58