1 // Copyright (c) 2011 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 CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TYPES_H_ 6 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TYPES_H_ 7 #pragma once 8 9 #include <vector> 10 11 #include "base/file_path.h" 12 #include "base/memory/linked_ptr.h" 13 #include "base/synchronization/lock.h" 14 #include "net/base/file_stream.h" 15 16 namespace net { 17 class IOBuffer; 18 } 19 20 // DownloadBuffer is created and populated on the IO thread, and passed to the 21 // file thread for writing. In order to avoid flooding the file thread with too 22 // many small write messages, each write is appended to the DownloadBuffer while 23 // waiting for the task to run on the file thread. Access to the write buffers 24 // is synchronized via the lock. Each entry in 'contents' represents one data 25 // buffer and its size in bytes. 26 struct DownloadBuffer { 27 DownloadBuffer(); 28 ~DownloadBuffer(); 29 30 base::Lock lock; 31 typedef std::pair<net::IOBuffer*, int> Contents; 32 std::vector<Contents> contents; 33 }; 34 35 // Holds the information about how to save a download file. 36 struct DownloadSaveInfo { 37 DownloadSaveInfo(); 38 DownloadSaveInfo(const DownloadSaveInfo& info); 39 ~DownloadSaveInfo(); 40 DownloadSaveInfo& operator=(const DownloadSaveInfo& info); 41 42 FilePath file_path; 43 linked_ptr<net::FileStream> file_stream; 44 }; 45 46 #endif // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TYPES_H_ 47
