kc3-lang/angle/util/test_utils.h

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• Hash : 2ce2146b
  Author :
  Date : 2022-12-12T15:31:29
  

  Fix --render-test-output-dir to work in TestSuite.
  
  https://crrev.com/c/3956937 introduced the issue where this flag is
  consumed by ANGLEPerfTestArgs.cpp logic which runs before the TestSuite
  constructor and removes the flag so we end up with an empty
  mTestArtifactDirectory in TestSuite.
  
  Bug: angleproject:7755
  Change-Id: Ic32d3a2ddceca7842a0aebe5a1e40cbedaedf2eb
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4097325
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Roman Lavrov <romanl@google.com>
  

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• util/test_utils.h

• //
  // Copyright 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // test_utils.h: declaration of OS-specific utility functions
  
  #ifndef UTIL_TEST_UTILS_H_
  #define UTIL_TEST_UTILS_H_
  
  #include <functional>
  #include <string>
  #include <vector>
  
  #include "common/angleutils.h"
  #include "util/Timer.h"
  
  namespace angle
  {
  // Cross platform equivalent of the Windows Sleep function
  void Sleep(unsigned int milliseconds);
  
  void SetLowPriorityProcess();
  
  // Write a debug message, either to a standard output or Debug window.
  void WriteDebugMessage(const char *format, ...);
  
  // Set thread affinity and priority.
  bool StabilizeCPUForBenchmarking();
  
  // Set a crash handler to print stack traces.
  using CrashCallback = std::function<void()>;
  void InitCrashHandler(CrashCallback *callback);
  void TerminateCrashHandler();
  
  // Print a stack back trace.
  void PrintStackBacktrace();
  
  // Deletes a file or directory.
  bool DeleteSystemFile(const char *path);
  
  // Reads a file contents into a string. Note: this method cannot be exported across a shared module
  // boundary because it does memory allocation.
  bool ReadEntireFileToString(const char *filePath, std::string *contentsOut);
  
  // Compute a file's size.
  bool GetFileSize(const char *filePath, uint32_t *sizeOut);
  
  class ProcessHandle;
  
  class Process : angle::NonCopyable
  {
    public:
      virtual bool started()    = 0;
      virtual bool finished()   = 0;
      virtual bool finish()     = 0;
      virtual bool kill()       = 0;
      virtual int getExitCode() = 0;
  
      double getElapsedTimeSeconds() const { return mTimer.getElapsedWallClockTime(); }
      const std::string &getStdout() const { return mStdout; }
      const std::string &getStderr() const { return mStderr; }
  
    protected:
      friend class ProcessHandle;
      virtual ~Process();
  
      Timer mTimer;
      std::string mStdout;
      std::string mStderr;
  };
  
  enum class ProcessOutputCapture
  {
      Nothing,
      // Capture stdout only
      StdoutOnly,
      // Capture stdout, and pipe stderr to stdout
      StdoutAndStderrInterleaved,
      // Capture stdout and stderr separately
      StdoutAndStderrSeparately,
  };
  
  class ProcessHandle final : angle::NonCopyable
  {
    public:
      ProcessHandle();
      ProcessHandle(Process *process);
      ProcessHandle(const std::vector<const char *> &args, ProcessOutputCapture captureOutput);
      ~ProcessHandle();
      ProcessHandle(ProcessHandle &&other);
      ProcessHandle &operator=(ProcessHandle &&rhs);
  
      Process *operator->() { return mProcess; }
      const Process *operator->() const { return mProcess; }
  
      operator bool() const { return mProcess != nullptr; }
  
      void reset();
  
    private:
      Process *mProcess;
  };
  
  // Launch a process and optionally get the output. Uses a vector of c strings as command line
  // arguments to the child process. Returns a Process handle which can be used to retrieve
  // the stdout and stderr outputs as well as the exit code.
  //
  // Pass false for stdoutOut/stderrOut if you don't need to capture them.
  //
  // On success, returns a Process pointer with started() == true.
  // On failure, returns a Process pointer with started() == false.
  Process *LaunchProcess(const std::vector<const char *> &args, ProcessOutputCapture captureOutput);
  
  int NumberOfProcessors();
  
  const char *GetNativeEGLLibraryNameWithExtension();
  
  // Intercept Metal shader cache access to avoid slow caching mechanism that caused the test timeout
  // in the past. Note:
  // - If there is NO "--skip-file-hooking" switch in the argument list:
  //   - This function will re-launch the app with additional argument "--skip-file-hooking".
  //   - The running process's image & memory will be re-created.
  // - If there is "--skip-file-hooking" switch in the argument list, this function will do nothing.
  #if defined(ANGLE_PLATFORM_APPLE)
  void InitMetalFileAPIHooking(int argc, char **argv);
  #endif
  
  enum ArgHandling
  {
      Delete,
      Preserve,
  };
  
  bool ParseIntArg(const char *flag, int *argc, char **argv, int argIndex, int *valueOut);
  bool ParseFlag(const char *flag, int *argc, char **argv, int argIndex, bool *flagOut);
  bool ParseStringArg(const char *flag, int *argc, char **argv, int argIndex, std::string *valueOut);
  bool ParseCStringArg(const char *flag, int *argc, char **argv, int argIndex, const char **valueOut);
  
  // Note: return value is always false with ArgHandling::Preserve handling
  bool ParseIntArgWithHandling(const char *flag,
                               int *argc,
                               char **argv,
                               int argIndex,
                               int *valueOut,
                               ArgHandling handling);
  bool ParseCStringArgWithHandling(const char *flag,
                                   int *argc,
                                   char **argv,
                                   int argIndex,
                                   const char **valueOut,
                                   ArgHandling handling);
  
  void AddArg(int *argc, char **argv, const char *arg);
  
  uint32_t GetPlatformANGLETypeFromArg(const char *useANGLEArg, uint32_t defaultPlatformType);
  uint32_t GetANGLEDeviceTypeFromArg(const char *useANGLEArg, uint32_t defaultDeviceType);
  }  // namespace angle
  
  #endif  // UTIL_TEST_UTILS_H_
  

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