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

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• Hash : a9f89313
  Author :
  Date : 2019-02-25T16:31:57
  

  Reland "Add system util to execute app and retrieve its output"
  
  This reverts commit fe14b2e503a5991aeb033836bb4d525508475b52.
  
  Reason for revert: failing test is reworked not to run angle_unittests
  itself, but another binary.
  
  Previously, this test was calling angle_unittests itself, but with a
  different target.  On the bots, that was in turn calling angle_unittests
  with even more arguments, including the addition of a log file location.
  Under some configurations, this separate process was thus trying to
  access files that were already opened by the parent process, leading to
  a test failure.
  
  In this CL, a new helper executable is created for the sake of this
  unittest.
  
  > Revert "Add system util to execute app and retrieve its output"
  >
  > This reverts commit c63d95525cde8d28963148bb5894456c1d39018d.
  >
  > Reason for revert: Test fails on Win7
  >
  > Original change's description:
  > > Add system util to execute app and retrieve its output
  > >
  > > This will be useful to run external applications, such as benchmarks,
  > > and process their output.
  > >
  > > Bug: angleproject:3125
  > > Change-Id: Ic13c69f2e034f4b47498fb2f299c62423c355c4a
  > > Reviewed-on: https://chromium-review.googlesource.com/c/1452534
  > > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  > > Reviewed-by: Jamie Madill <jmadill@google.com>
  
  Bug: angleproject:3125, angleproject:3168
  Change-Id: I74815750484a79f33c36e0b4f941d4dd98f99aa5
  Reviewed-on: https://chromium-review.googlesource.com/c/1487631
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@google.com>
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  

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• 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);
  
  // 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.
  //
  // 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));
      }
  };
  
  Library *OpenSharedLibrary(const char *libraryName);
  }  // namespace angle
  
  #endif  // COMMON_SYSTEM_UTILS_H_
  

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