kc3-lang/angle/src/common/system_utils.h

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• Hash : 95a736bd
  Author :
  Date : 2019-10-09T10:26:25
  

  Reland "Add more test_utils functions."
  
  This is a reland of 5fcfcea4a9379633a83a67fc1d94938cb31f2a9c
  
  Re-land uses static linking with angle_util. The root cause
  of the CFI error wasn't solved. Static linking works around
  the problem by not using any export rules.
  
  Second re-land fixes missing imports for libEGL and libGLESv2
  static varieties.
  
  Original change's description:
  > Add more test_utils functions.
  >
  > Includes methods for creating temporary files, deleting files, and
  > reading files into a string. Also renames GetPathSeparator to mention
  > it's only used for environment variables. Includes a new virtual type
  > angle::Process that will be used to implement cross-platform async
  > Process launching for tests. Also includes a way to specify a custom
  > crash handler callback.
  >
  > Also adds a few unit tests for the new functionality. They are disabled
  > on Android because the functions are not needed by the new test runner.
  >
  > Bug: angleproject:3162
  > Change-Id: I3e2c2e9837608884c98379fa0f78c9ffbe158d73
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1821940
  > Commit-Queue: Jamie Madill <jmadill@chromium.org>
  > Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  
  Bug: chromium:1015810
  Bug: angleproject:3162
  Change-Id: I2a18b819b0f91df610ad12ffedea2b38349fe7cf
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1879859
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  

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• src/common/system_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.
  //
  
  // system_utils.h: declaration of OS-specific utility functions
  
  #ifndef COMMON_SYSTEM_UTILS_H_
  #define COMMON_SYSTEM_UTILS_H_
  
  #include "common/Optional.h"
  #include "common/angleutils.h"
  
  namespace angle
  {
  std::string GetExecutablePath();
  std::string GetExecutableDirectory();
  const char *GetSharedLibraryExtension();
  Optional<std::string> GetCWD();
  bool SetCWD(const char *dirName);
  bool SetEnvironmentVar(const char *variableName, const char *value);
  bool UnsetEnvironmentVar(const char *variableName);
  std::string GetEnvironmentVar(const char *variableName);
  const char *GetPathSeparatorForEnvironmentVar();
  bool PrependPathToEnvironmentVar(const char *variableName, const char *path);
  bool IsDirectory(const char *filename);
  
  // Get absolute time in seconds.  Use this function to get an absolute time with an unknown origin.
  double GetCurrentTime();
  
  // Run an application and get the output.  Gets a nullptr-terminated set of args to execute the
  // application with, and returns the stdout and stderr outputs as well as the exit code.
  //
  // Pass nullptr for stdoutOut/stderrOut if you don't need to capture. exitCodeOut is required.
  //
  // Returns false if it fails to actually execute the application.
  bool RunApp(const std::vector<const char *> &args,
              std::string *stdoutOut,
              std::string *stderrOut,
              int *exitCodeOut);
  
  class Library : angle::NonCopyable
  {
    public:
      virtual ~Library() {}
      virtual void *getSymbol(const char *symbolName) = 0;
      virtual void *getNative() const                 = 0;
  
      template <typename FuncT>
      void getAs(const char *symbolName, FuncT *funcOut)
      {
          *funcOut = reinterpret_cast<FuncT>(getSymbol(symbolName));
      }
  };
  
  // Use SYSTEM_DIR to bypass loading ANGLE libraries with the same name as system DLLS
  // (e.g. opengl32.dll)
  enum class SearchType
  {
      ApplicationDir,
      SystemDir
  };
  
  Library *OpenSharedLibrary(const char *libraryName, SearchType searchType);
  
  // Returns true if the process is currently being debugged.
  bool IsDebuggerAttached();
  
  // Calls system APIs to break into the debugger.
  void BreakDebugger();
  }  // namespace angle
  
  #endif  // COMMON_SYSTEM_UTILS_H_
  

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