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e8a4036e96
It was reported in issue #17345 that CTest does not use monotonic time to report test duration. Monotonic clocks are not affected by large NTP adjustments or things like daylight savings time. As CMake 3.10 requires C++11, which introduced std::chrono, this commit moves the time keeping in CTest from cmSystemTools::GetTime() to std::chrono::steady_clock. Fixes: #17345
82 lines
2.2 KiB
C++
82 lines
2.2 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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#ifndef cmProcess_h
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#define cmProcess_h
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#include "cmConfigure.h" // IWYU pragma: keep
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#include "cmsys/Process.h"
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#include <chrono>
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#include <string>
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#include <vector>
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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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cmProcess();
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~cmProcess();
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const char* GetCommand() { return this->Command.c_str(); }
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void SetCommand(const char* command);
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void SetCommandArguments(std::vector<std::string> const& arg);
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void SetWorkingDirectory(const char* dir) { this->WorkingDirectory = dir; }
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void SetTimeout(double t) { this->Timeout = t; }
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void ChangeTimeout(double t);
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void ResetStartTime();
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// Return true if the process starts
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bool StartProcess();
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// return the process status
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int GetProcessStatus();
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// Report the status of the program
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int ReportStatus();
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int GetId() { return this->Id; }
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void SetId(int id) { this->Id = id; }
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int GetExitValue() { return this->ExitValue; }
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double GetTotalTime() { return this->TotalTime; }
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int GetExitException();
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std::string GetExitExceptionString();
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/**
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* Read one line of output but block for no more than timeout.
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* Returns:
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* cmsysProcess_Pipe_None = Process terminated and all output read
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* cmsysProcess_Pipe_STDOUT = Line came from stdout or stderr
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* cmsysProcess_Pipe_Timeout = Timeout expired while waiting
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*/
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int GetNextOutputLine(std::string& line, double timeout);
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private:
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double Timeout;
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std::chrono::steady_clock::time_point StartTime;
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double TotalTime;
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cmsysProcess* Process;
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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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int ExitValue;
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};
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#endif
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