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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "chrome/utility/media_galleries/ipc_data_source.h" | 5 #include "chrome/utility/media_galleries/ipc_data_source.h" |
| 6 | 6 |
| 7 #include "base/thread_task_runner_handle.h" | 7 #include "base/thread_task_runner_handle.h" |
| 8 #include "chrome/common/extensions/chrome_utility_extensions_messages.h" | 8 #include "chrome/common/extensions/chrome_utility_extensions_messages.h" |
| 9 #include "content/public/utility/utility_thread.h" | 9 #include "content/public/utility/utility_thread.h" |
| 10 | 10 |
| 11 namespace metadata { | 11 namespace metadata { |
| 12 | 12 |
| 13 IPCDataSource::IPCDataSource(int64 total_size) | 13 IPCDataSource::IPCDataSource(int64_t total_size) |
| 14 : total_size_(total_size), | 14 : total_size_(total_size), |
| 15 utility_task_runner_(base::ThreadTaskRunnerHandle::Get()), | 15 utility_task_runner_(base::ThreadTaskRunnerHandle::Get()), |
| 16 next_request_id_(0) { | 16 next_request_id_(0) { |
| 17 data_source_thread_checker_.DetachFromThread(); | 17 data_source_thread_checker_.DetachFromThread(); |
| 18 } | 18 } |
| 19 | 19 |
| 20 IPCDataSource::~IPCDataSource() { | 20 IPCDataSource::~IPCDataSource() { |
| 21 DCHECK(utility_thread_checker_.CalledOnValidThread()); | 21 DCHECK(utility_thread_checker_.CalledOnValidThread()); |
| 22 } | 22 } |
| 23 | 23 |
| 24 void IPCDataSource::Stop() { | 24 void IPCDataSource::Stop() { |
| 25 DCHECK(data_source_thread_checker_.CalledOnValidThread()); | 25 DCHECK(data_source_thread_checker_.CalledOnValidThread()); |
| 26 } | 26 } |
| 27 | 27 |
| 28 void IPCDataSource::Read(int64 position, int size, uint8* data, | 28 void IPCDataSource::Read(int64_t position, |
| 29 int size, |
| 30 uint8_t* data, |
| 29 const DataSource::ReadCB& read_cb) { | 31 const DataSource::ReadCB& read_cb) { |
| 30 DCHECK(data_source_thread_checker_.CalledOnValidThread()); | 32 DCHECK(data_source_thread_checker_.CalledOnValidThread()); |
| 31 utility_task_runner_->PostTask( | 33 utility_task_runner_->PostTask( |
| 32 FROM_HERE, | 34 FROM_HERE, |
| 33 base::Bind(&IPCDataSource::ReadOnUtilityThread, base::Unretained(this), | 35 base::Bind(&IPCDataSource::ReadOnUtilityThread, base::Unretained(this), |
| 34 position, size, data, read_cb)); | 36 position, size, data, read_cb)); |
| 35 } | 37 } |
| 36 | 38 |
| 37 bool IPCDataSource::GetSize(int64* size_out) { | 39 bool IPCDataSource::GetSize(int64_t* size_out) { |
| 38 DCHECK(data_source_thread_checker_.CalledOnValidThread()); | 40 DCHECK(data_source_thread_checker_.CalledOnValidThread()); |
| 39 *size_out = total_size_; | 41 *size_out = total_size_; |
| 40 return true; | 42 return true; |
| 41 } | 43 } |
| 42 | 44 |
| 43 bool IPCDataSource::IsStreaming() { | 45 bool IPCDataSource::IsStreaming() { |
| 44 DCHECK(data_source_thread_checker_.CalledOnValidThread()); | 46 DCHECK(data_source_thread_checker_.CalledOnValidThread()); |
| 45 return false; | 47 return false; |
| 46 } | 48 } |
| 47 | 49 |
| (...skipping 12 matching lines...) Expand all Loading... |
| 60 return handled; | 62 return handled; |
| 61 } | 63 } |
| 62 | 64 |
| 63 IPCDataSource::Request::Request() | 65 IPCDataSource::Request::Request() |
| 64 : destination(NULL) { | 66 : destination(NULL) { |
| 65 } | 67 } |
| 66 | 68 |
| 67 IPCDataSource::Request::~Request() { | 69 IPCDataSource::Request::~Request() { |
| 68 } | 70 } |
| 69 | 71 |
| 70 void IPCDataSource::ReadOnUtilityThread(int64 position, int size, uint8* data, | 72 void IPCDataSource::ReadOnUtilityThread(int64_t position, |
| 73 int size, |
| 74 uint8_t* data, |
| 71 const DataSource::ReadCB& read_cb) { | 75 const DataSource::ReadCB& read_cb) { |
| 72 DCHECK(utility_thread_checker_.CalledOnValidThread()); | 76 DCHECK(utility_thread_checker_.CalledOnValidThread()); |
| 73 CHECK_GE(total_size_, 0); | 77 CHECK_GE(total_size_, 0); |
| 74 CHECK_GE(position, 0); | 78 CHECK_GE(position, 0); |
| 75 CHECK_GE(size, 0); | 79 CHECK_GE(size, 0); |
| 76 | 80 |
| 77 // Cap position and size within bounds. | 81 // Cap position and size within bounds. |
| 78 position = std::min(position, total_size_); | 82 position = std::min(position, total_size_); |
| 79 int64 clamped_size = | 83 int64_t clamped_size = |
| 80 std::min(static_cast<int64>(size), total_size_ - position); | 84 std::min(static_cast<int64_t>(size), total_size_ - position); |
| 81 | 85 |
| 82 int64 request_id = ++next_request_id_; | 86 int64_t request_id = ++next_request_id_; |
| 83 | 87 |
| 84 Request request; | 88 Request request; |
| 85 request.destination = data; | 89 request.destination = data; |
| 86 request.callback = read_cb; | 90 request.callback = read_cb; |
| 87 | 91 |
| 88 pending_requests_[request_id] = request; | 92 pending_requests_[request_id] = request; |
| 89 content::UtilityThread::Get()->Send(new ChromeUtilityHostMsg_RequestBlobBytes( | 93 content::UtilityThread::Get()->Send(new ChromeUtilityHostMsg_RequestBlobBytes( |
| 90 request_id, position, clamped_size)); | 94 request_id, position, clamped_size)); |
| 91 } | 95 } |
| 92 | 96 |
| 93 void IPCDataSource::OnRequestBlobBytesFinished(int64 request_id, | 97 void IPCDataSource::OnRequestBlobBytesFinished(int64_t request_id, |
| 94 const std::string& bytes) { | 98 const std::string& bytes) { |
| 95 DCHECK(utility_thread_checker_.CalledOnValidThread()); | 99 DCHECK(utility_thread_checker_.CalledOnValidThread()); |
| 96 std::map<int64, Request>::iterator it = pending_requests_.find(request_id); | 100 std::map<int64_t, Request>::iterator it = pending_requests_.find(request_id); |
| 97 | 101 |
| 98 if (it == pending_requests_.end()) | 102 if (it == pending_requests_.end()) |
| 99 return; | 103 return; |
| 100 | 104 |
| 101 std::copy(bytes.begin(), bytes.end(), it->second.destination); | 105 std::copy(bytes.begin(), bytes.end(), it->second.destination); |
| 102 it->second.callback.Run(bytes.size()); | 106 it->second.callback.Run(bytes.size()); |
| 103 | 107 |
| 104 pending_requests_.erase(it); | 108 pending_requests_.erase(it); |
| 105 } | 109 } |
| 106 | 110 |
| 107 } // namespace metadata | 111 } // namespace metadata |
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