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

• Show log

  Commit

• Hash : 48da1c35
  Author :
  Date : 2021-07-16T13:24:34
  

  Vulkan: Prefer the local vulkan loader over the system one.
  
  Load the Vulkan loader ourselves and give vkGetInstanceProcAddr to
  volk. This allows us to always prefer loading from the current module
  directory instead of using the platform-specific ordering.
  
  Refactor angle::Library loading to use ModuleDir instead of
  ApplicationDir.
  
  CL originally authored by Geoff Lang.
  
  Bug: chromium:1219969
  Change-Id: I21d1926e90fd66e1c23cea7323991ae55f3d22d4
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3035444
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

Download

• 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"
  
  #include <string>
  
  namespace angle
  {
  std::string GetExecutableName();
  std::string GetExecutablePath();
  std::string GetExecutableDirectory();
  std::string GetModuleDirectory();
  const char *GetSharedLibraryExtension();
  const char *GetExecutableExtension();
  char GetPathSeparator();
  Optional<std::string> GetCWD();
  bool SetCWD(const char *dirName);
  bool SetEnvironmentVar(const char *variableName, const char *value);
  bool UnsetEnvironmentVar(const char *variableName);
  bool GetBoolEnvironmentVar(const char *variableName);
  std::string GetEnvironmentVar(const char *variableName);
  std::string GetEnvironmentVarOrUnCachedAndroidProperty(const char *variableName,
                                                         const char *propertyName);
  std::string GetEnvironmentVarOrAndroidProperty(const char *variableName, const char *propertyName);
  const char *GetPathSeparatorForEnvironmentVar();
  bool PrependPathToEnvironmentVar(const char *variableName, const char *path);
  bool IsDirectory(const char *filename);
  bool IsFullPath(std::string dirName);
  std::string GetRootDirectory();
  std::string ConcatenatePath(std::string first, std::string second);
  
  // 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;
      virtual std::string getPath() 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
  {
      // Try to find the library in the same directory as the current module
      ModuleDir,
      // Load the library from the system directories
      SystemDir,
      // Get a reference to an already loaded shared library.
      AlreadyLoaded,
  };
  
  Library *OpenSharedLibrary(const char *libraryName, SearchType searchType);
  Library *OpenSharedLibraryWithExtension(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_
  

Download