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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "content/browser/file_descriptor_info_impl.h" | 5 #include "content/browser/file_descriptor_info_impl.h" |
| 6 | 6 |
| 7 #include <utility> | 7 #include <utility> |
| 8 | 8 |
| 9 #include "base/stl_util.h" |
| 10 |
| 9 namespace content { | 11 namespace content { |
| 10 | 12 |
| 11 // static | 13 // static |
| 12 scoped_ptr<FileDescriptorInfo> FileDescriptorInfoImpl::Create() { | 14 scoped_ptr<FileDescriptorInfo> FileDescriptorInfoImpl::Create() { |
| 13 return scoped_ptr<FileDescriptorInfo>(new FileDescriptorInfoImpl()); | 15 return scoped_ptr<FileDescriptorInfo>(new FileDescriptorInfoImpl()); |
| 14 } | 16 } |
| 15 | 17 |
| 16 FileDescriptorInfoImpl::FileDescriptorInfoImpl() { | 18 FileDescriptorInfoImpl::FileDescriptorInfoImpl() { |
| 17 } | 19 } |
| 18 | 20 |
| 19 FileDescriptorInfoImpl::~FileDescriptorInfoImpl() { | 21 FileDescriptorInfoImpl::~FileDescriptorInfoImpl() { |
| 20 } | 22 } |
| 21 | 23 |
| 22 void FileDescriptorInfoImpl::Share(int id, base::PlatformFile fd) { | 24 void FileDescriptorInfoImpl::Share(int id, base::PlatformFile fd) { |
| 23 AddToMapping(id, fd); | 25 AddToMapping(id, fd); |
| 24 } | 26 } |
| 25 | 27 |
| 26 void FileDescriptorInfoImpl::Transfer(int id, base::ScopedFD fd) { | 28 void FileDescriptorInfoImpl::Transfer(int id, base::ScopedFD fd) { |
| 27 AddToMapping(id, fd.get()); | 29 AddToMapping(id, fd.get()); |
| 28 owned_descriptors_.push_back(new base::ScopedFD(std::move(fd))); | 30 owned_descriptors_.push_back(std::move(fd)); |
| 29 } | 31 } |
| 30 | 32 |
| 31 base::PlatformFile FileDescriptorInfoImpl::GetFDAt(size_t i) const { | 33 base::PlatformFile FileDescriptorInfoImpl::GetFDAt(size_t i) const { |
| 32 return mapping_[i].first; | 34 return mapping_[i].first; |
| 33 } | 35 } |
| 34 | 36 |
| 35 int FileDescriptorInfoImpl::GetIDAt(size_t i) const { | 37 int FileDescriptorInfoImpl::GetIDAt(size_t i) const { |
| 36 return mapping_[i].second; | 38 return mapping_[i].second; |
| 37 } | 39 } |
| 38 | 40 |
| 39 size_t FileDescriptorInfoImpl::GetMappingSize() const { | 41 size_t FileDescriptorInfoImpl::GetMappingSize() const { |
| 40 return mapping_.size(); | 42 return mapping_.size(); |
| 41 } | 43 } |
| 42 | 44 |
| 43 bool FileDescriptorInfoImpl::HasID(int id) const { | 45 bool FileDescriptorInfoImpl::HasID(int id) const { |
| 44 for (unsigned i = 0; i < mapping_.size(); ++i) { | 46 for (unsigned i = 0; i < mapping_.size(); ++i) { |
| 45 if (mapping_[i].second == id) | 47 if (mapping_[i].second == id) |
| 46 return true; | 48 return true; |
| 47 } | 49 } |
| 48 | 50 |
| 49 return false; | 51 return false; |
| 50 } | 52 } |
| 51 | 53 |
| 52 bool FileDescriptorInfoImpl::OwnsFD(base::PlatformFile file) const { | 54 bool FileDescriptorInfoImpl::OwnsFD(base::PlatformFile file) const { |
| 53 return owned_descriptors_.end() != | 55 return ContainsValue(owned_descriptors_, file); |
| 54 std::find_if( | |
| 55 owned_descriptors_.begin(), owned_descriptors_.end(), | |
| 56 [file](const base::ScopedFD* fd) { return fd->get() == file; }); | |
| 57 } | 56 } |
| 58 | 57 |
| 59 base::ScopedFD FileDescriptorInfoImpl::ReleaseFD(base::PlatformFile file) { | 58 base::ScopedFD FileDescriptorInfoImpl::ReleaseFD(base::PlatformFile file) { |
| 60 DCHECK(OwnsFD(file)); | 59 DCHECK(OwnsFD(file)); |
| 61 | 60 |
| 62 base::ScopedFD fd; | 61 base::ScopedFD fd; |
| 63 auto found = std::find_if( | 62 auto found = |
| 64 owned_descriptors_.begin(), owned_descriptors_.end(), | 63 std::find(owned_descriptors_.begin(), owned_descriptors_.end(), file); |
| 65 [file](const base::ScopedFD* fd) { return fd->get() == file; }); | |
| 66 | 64 |
| 67 (*found)->swap(fd); | 65 std::swap(*found, fd); |
| 68 owned_descriptors_.erase(found); | 66 owned_descriptors_.erase(found); |
| 69 | 67 |
| 70 return fd; | 68 return fd; |
| 71 } | 69 } |
| 72 | 70 |
| 73 void FileDescriptorInfoImpl::AddToMapping(int id, base::PlatformFile fd) { | 71 void FileDescriptorInfoImpl::AddToMapping(int id, base::PlatformFile fd) { |
| 74 DCHECK(!HasID(id)); | 72 DCHECK(!HasID(id)); |
| 75 mapping_.push_back(std::make_pair(fd, id)); | 73 mapping_.push_back(std::make_pair(fd, id)); |
| 76 } | 74 } |
| 77 | 75 |
| 78 const base::FileHandleMappingVector& FileDescriptorInfoImpl::GetMapping() | 76 const base::FileHandleMappingVector& FileDescriptorInfoImpl::GetMapping() |
| 79 const { | 77 const { |
| 80 return mapping_; | 78 return mapping_; |
| 81 } | 79 } |
| 82 | 80 |
| 83 base::FileHandleMappingVector | 81 base::FileHandleMappingVector |
| 84 FileDescriptorInfoImpl::GetMappingWithIDAdjustment(int delta) const { | 82 FileDescriptorInfoImpl::GetMappingWithIDAdjustment(int delta) const { |
| 85 base::FileHandleMappingVector result = mapping_; | 83 base::FileHandleMappingVector result = mapping_; |
| 86 // Adding delta to each ID. | 84 // Adding delta to each ID. |
| 87 for (unsigned i = 0; i < mapping_.size(); ++i) | 85 for (unsigned i = 0; i < mapping_.size(); ++i) |
| 88 result[i].second += delta; | 86 result[i].second += delta; |
| 89 return result; | 87 return result; |
| 90 } | 88 } |
| 91 | 89 |
| 92 } // namespace content | 90 } // namespace content |
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