56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
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/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LIBUNWINDSTACK_TESTS_TEST_UTILS_H
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#define _LIBUNWINDSTACK_TESTS_TEST_UTILS_H
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#include <signal.h>
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#include <sys/ptrace.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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namespace unwindstack {
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class TestScopedPidReaper {
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public:
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TestScopedPidReaper(pid_t pid) : pid_(pid) {}
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~TestScopedPidReaper() {
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kill(pid_, SIGKILL);
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waitpid(pid_, nullptr, 0);
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}
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private:
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pid_t pid_;
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};
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inline bool TestQuiescePid(pid_t pid) {
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siginfo_t si;
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bool ready = false;
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// Wait for up to 5 seconds.
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for (size_t i = 0; i < 5000; i++) {
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if (ptrace(PTRACE_GETSIGINFO, pid, 0, &si) == 0) {
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ready = true;
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break;
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}
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usleep(1000);
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}
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return ready;
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}
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} // namespace unwindstack
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#endif // _LIBUNWINDSTACK_TESTS_TEST_UTILS_H
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