kc3-lang/angle/src/common/system_utils_linux.cpp

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• Hash : bab0302b
  Author :
  Date : 2019-01-16T14:12:28
  

  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>
  

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• src/common/system_utils_linux.cpp

• //
  // Copyright (c) 2015 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_linux.cpp: Implementation of OS-specific functions for Linux
  
  #include "system_utils.h"
  
  #include <sys/stat.h>
  #include <sys/time.h>
  #include <sys/types.h>
  #include <unistd.h>
  
  #include <array>
  
  namespace angle
  {
  std::string GetExecutablePath()
  {
      // We cannot use lstat to get the size of /proc/self/exe as it always returns 0
      // so we just use a big buffer and hope the path fits in it.
      char path[4096];
  
      ssize_t result = readlink("/proc/self/exe", path, sizeof(path) - 1);
      if (result < 0 || static_cast<size_t>(result) >= sizeof(path) - 1)
      {
          return "";
      }
  
      path[result] = '\0';
      return path;
  }
  
  std::string GetExecutableDirectory()
  {
      std::string executablePath = GetExecutablePath();
      size_t lastPathSepLoc      = executablePath.find_last_of("/");
      return (lastPathSepLoc != std::string::npos) ? executablePath.substr(0, lastPathSepLoc) : "";
  }
  
  const char *GetSharedLibraryExtension()
  {
      return "so";
  }
  }  // namespace angle
  

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