content/browser/file_descriptor_info_impl.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_FILE_DESCRIPTOR_INFO_IMPL_H_
   6 #define CONTENT_BROWSER_FILE_DESCRIPTOR_INFO_IMPL_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/memory/scoped_vector.h"
  10 #include "content/common/content_export.h"
  11 #include "content/public/browser/file_descriptor_info.h"
  12
  13 namespace content {
  14
  15 class FileDescriptorInfoImpl : public FileDescriptorInfo {
  16  public:
  17   CONTENT_EXPORT static scoped_ptr<FileDescriptorInfo> Create();
  18
  19   ~FileDescriptorInfoImpl() override;
  20   void Share(int id, base::PlatformFile fd) override;
  21   void Transfer(int id, base::ScopedFD fd) override;
  22   const base::FileHandleMappingVector& GetMapping() const override;
  23   base::FileHandleMappingVector GetMappingWithIDAdjustment(
  24       int delta) const override;
  25   base::PlatformFile GetFDAt(size_t i) const override;
  26   int GetIDAt(size_t i) const override;
  27   size_t GetMappingSize() const override;
  28   bool OwnsFD(base::PlatformFile file) const override;
  29   base::ScopedFD ReleaseFD(base::PlatformFile file) override;
  30
  31  private:
  32   FileDescriptorInfoImpl();
  33
  34   void AddToMapping(int id, base::PlatformFile fd);
  35   bool HasID(int id) const;
  36   base::FileHandleMappingVector mapping_;
  37   ScopedVector<base::ScopedFD> owned_descriptors_;
  38 };
  39 }
  40
  41 #endif  // CONTENT_BROWSER_FILE_DESCRIPTOR_INFO_IMPL_H_