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

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• Author : Jamie Madill
  Date : 2019-10-09 10:26:25
  Hash : 95a736bd
  Message : 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>

• 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_