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bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6 enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
134 lines
3.1 KiB
C++
134 lines
3.1 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <chrono>
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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#include <cm3p/uv.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "cmDuration.h"
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#include "cmProcessOutput.h"
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#include "cmUVHandlePtr.h"
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class cmCTestRunTest;
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/** \class cmProcess
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* \brief run a process with c++
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*
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* cmProcess wraps the kwsys process stuff in a c++ class.
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*/
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class cmProcess
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{
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public:
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explicit cmProcess(std::unique_ptr<cmCTestRunTest> runner);
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~cmProcess();
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void SetCommand(std::string const& command);
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void SetCommandArguments(std::vector<std::string> const& arg);
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void SetWorkingDirectory(std::string const& dir);
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void SetTimeout(cmDuration t) { this->Timeout = t; }
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void ChangeTimeout(cmDuration t);
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void ResetStartTime();
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// Return true if the process starts
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bool StartProcess(uv_loop_t& loop, std::vector<size_t>* affinity);
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enum class State
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{
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Starting,
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Error,
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Exception,
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Executing,
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Exited,
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Expired,
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Killed,
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Disowned
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};
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State GetProcessStatus();
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int GetId() { return this->Id; }
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void SetId(int id) { this->Id = id; }
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int64_t GetExitValue() { return this->ExitValue; }
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cmDuration GetTotalTime() { return this->TotalTime; }
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enum class Exception
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{
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None,
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Fault,
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Illegal,
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Interrupt,
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Numerical,
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Other
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};
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Exception GetExitException();
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std::string GetExitExceptionString();
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std::unique_ptr<cmCTestRunTest> GetRunner()
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{
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return std::move(this->Runner);
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}
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private:
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cmDuration Timeout;
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std::chrono::steady_clock::time_point StartTime;
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cmDuration TotalTime;
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bool ReadHandleClosed = false;
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bool ProcessHandleClosed = false;
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cm::uv_process_ptr Process;
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cm::uv_pipe_ptr PipeReader;
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cm::uv_timer_ptr Timer;
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std::vector<char> Buf;
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std::unique_ptr<cmCTestRunTest> Runner;
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cmProcessOutput Conv;
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int Signal = 0;
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cmProcess::State ProcessState = cmProcess::State::Starting;
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static void OnExitCB(uv_process_t* process, int64_t exit_status,
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int term_signal);
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static void OnTimeoutCB(uv_timer_t* timer);
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static void OnReadCB(uv_stream_t* stream, ssize_t nread,
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const uv_buf_t* buf);
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static void OnAllocateCB(uv_handle_t* handle, size_t suggested_size,
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uv_buf_t* buf);
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void OnExit(int64_t exit_status, int term_signal);
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void OnTimeout();
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void OnRead(ssize_t nread, const uv_buf_t* buf);
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void OnAllocate(size_t suggested_size, uv_buf_t* buf);
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void StartTimer();
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void Finish();
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class Buffer : public std::vector<char>
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{
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// Half-open index range of partial line already scanned.
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size_type First;
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size_type Last;
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public:
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Buffer()
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: First(0)
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, Last(0)
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{
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}
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bool GetLine(std::string& line);
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bool GetLast(std::string& line);
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};
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Buffer Output;
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std::string Command;
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std::string WorkingDirectory;
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std::vector<std::string> Arguments;
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std::vector<const char*> ProcessArgs;
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int Id;
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int64_t ExitValue;
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};
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