1 | //===-- Unittests for setitimer -------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM |
4 | // Exceptions. |
5 | // See https://llvm.org/LICENSE.txt for license information. |
6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
7 | // |
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 | |
19 | using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher; |
20 | using LlvmLibcSysTimeSetitimerTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest; |
21 | |
22 | static bool timer_fired(false); |
23 | |
24 | extern "C" void handle_sigalrm(int) { timer_fired = true; } |
25 | |
26 | TEST_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 timer |
39 | |
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 | |
51 | TEST_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 | |