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

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• Author : Jamie Madill
  Date : 2019-01-16 14:12:28
  Hash : bab0302b
  Message : Make path utils return std::string. This avoids potential issues with returning local variables. It also solves potential threading conflicts by returning the string value instead of a pointer. The code should be optimized with RVO with a modern c++ compiler. Bug: angleproject:2601 Change-Id: I8a01702d2675a17dd060f27920105efab0c49454 Reviewed-on: https://chromium-review.googlesource.com/c/1415910 Reviewed-by: Kai Ninomiya <kainino@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

• src/common/system_utils.h

• //
  // Copyright (c) 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 *GetPathSeparator();
  bool PrependPathToEnvironmentVar(const char *variableName, const char *path);
  
  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));
      }
  };
  
  Library *OpenSharedLibrary(const char *libraryName);
  }  // namespace angle
  
  #endif  // COMMON_SYSTEM_UTILS_H_