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Extract process execution helper from e2e tests
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rosbag2_tests/test/rosbag2_tests/process_execution_helpers.hpp
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| // Copyright 2018, Bosch Software Innovations GmbH. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| #ifndef ROSBAG2_TESTS__PROCESS_EXECUTION_HELPERS_HPP_ | ||
| #define ROSBAG2_TESTS__PROCESS_EXECUTION_HELPERS_HPP_ | ||
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| #include <gmock/gmock.h> | ||
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| #include <signal.h> | ||
| #include <stdlib.h> | ||
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| #include <chrono> | ||
| #include <cstdlib> | ||
| #include <string> | ||
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| using namespace ::testing; // NOLINT | ||
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| #ifdef _WIN32 | ||
| # include <direct.h> | ||
| # include <Windows.h> | ||
| #endif | ||
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| #ifdef _WIN32 | ||
| struct Process | ||
| { | ||
| PROCESS_INFORMATION process_info; | ||
| HANDLE job_handle; | ||
| }; | ||
| using ProcessHandle = Process; | ||
| #else | ||
| using ProcessHandle = int; | ||
| #endif | ||
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| #ifdef _WIN32 | ||
| PROCESS_INFORMATION create_process(TCHAR * command, const char * path = nullptr) | ||
| { | ||
| STARTUPINFO start_up_info{}; | ||
| PROCESS_INFORMATION process_info{}; | ||
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| CreateProcess( | ||
| nullptr, | ||
| command, | ||
| nullptr, | ||
| nullptr, | ||
| false, | ||
| 0, | ||
| nullptr, | ||
| path, | ||
| &start_up_info, | ||
| &process_info); | ||
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| return process_info; | ||
| } | ||
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| void close_process_handles(const PROCESS_INFORMATION & process) | ||
| { | ||
| CloseHandle(process.hProcess); | ||
| CloseHandle(process.hThread); | ||
| } | ||
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| void const_char_to_tchar(const char * source, TCHAR * destination) | ||
| { | ||
| size_t length = strlen(source); | ||
| memcpy(destination, source, length + 1); | ||
| } | ||
| #endif | ||
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| int execute_and_wait_until_completion(const std::string & command, const std::string & path) | ||
| { | ||
| #ifdef _WIN32 | ||
| TCHAR * command_char = new TCHAR[strlen(command.c_str()) + 1]; | ||
| const_char_to_tchar(command.c_str(), command_char); | ||
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| auto process = create_process(command_char, path.c_str()); | ||
| DWORD exit_code = 259; // 259 is the code one gets if the proces is still active. | ||
| while (exit_code == 259) { | ||
| GetExitCodeProcess(process.hProcess, &exit_code); | ||
| std::this_thread::sleep_for(std::chrono::milliseconds(10)); | ||
| } | ||
| close_process_handles(process); | ||
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| delete[] command_char; | ||
| return static_cast<int>(exit_code); | ||
| #else | ||
| chdir(path.c_str()); | ||
| auto exitcode = std::system(command.c_str()); | ||
| return WEXITSTATUS(exitcode); | ||
| #endif | ||
| } | ||
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| ProcessHandle start_execution(const std::string & command) | ||
| { | ||
| #ifdef _WIN32 | ||
| auto h_job = CreateJobObject(nullptr, nullptr); | ||
| JOBOBJECT_EXTENDED_LIMIT_INFORMATION info{}; | ||
| info.BasicLimitInformation.LimitFlags = JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE; | ||
| SetInformationJobObject(h_job, JobObjectExtendedLimitInformation, &info, sizeof(info)); | ||
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| TCHAR * command_char = new TCHAR[strlen(command.c_str()) + 1]; | ||
| const_char_to_tchar(command.c_str(), command_char); | ||
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| auto process_info = create_process(command_char); | ||
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| AssignProcessToJobObject(h_job, process_info.hProcess); | ||
| Process process; | ||
| process.process_info = process_info; | ||
| process.job_handle = h_job; | ||
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| delete[] command_char; | ||
| return process; | ||
| #else | ||
| auto process_id = fork(); | ||
| if (process_id == 0) { | ||
| setpgid(getpid(), getpid()); | ||
| int return_code = system(command.c_str()); | ||
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| // this call will make sure that the process does execute without issues before it is killed by | ||
| // the user in the test or, in case it runs until completion, that it has correctly executed. | ||
| EXPECT_THAT(return_code, Eq(0)); | ||
| } | ||
| return process_id; | ||
| #endif | ||
| } | ||
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| void stop_execution(const ProcessHandle & handle) | ||
| { | ||
| #ifdef _WIN32 | ||
| DWORD exit_code; | ||
| GetExitCodeProcess(handle.process_info.hProcess, &exit_code); | ||
| // 259 indicates that the process is still active: we want to make sure that the process is | ||
| // still running properly before killing it. | ||
| EXPECT_THAT(exit_code, Eq(259)); | ||
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| close_process_handles(handle.process_info); | ||
| CloseHandle(handle.job_handle); | ||
| #else | ||
| kill(-handle, SIGTERM); | ||
| #endif | ||
| } | ||
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| #endif // ROSBAG2_TESTS__PROCESS_EXECUTION_HELPERS_HPP_ |
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