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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 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 #ifndef CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_ | 5 #ifndef CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_ |
6 #define CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_ | 6 #define CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 // TODO(jam): remove this file when all files have been converted. |
10 | 10 #include "content/browser/renderer_host/async_resource_handler.h" |
11 #include "chrome/browser/renderer_host/resource_handler.h" | |
12 | |
13 class ResourceDispatcherHost; | |
14 class ResourceMessageFilter; | |
15 class SharedIOBuffer; | |
16 | |
17 // Used to complete an asynchronous resource request in response to resource | |
18 // load events from the resource dispatcher host. | |
19 class AsyncResourceHandler : public ResourceHandler { | |
20 public: | |
21 AsyncResourceHandler(ResourceMessageFilter* filter, | |
22 int routing_id, | |
23 const GURL& url, | |
24 ResourceDispatcherHost* resource_dispatcher_host); | |
25 | |
26 // ResourceHandler implementation: | |
27 virtual bool OnUploadProgress(int request_id, uint64 position, uint64 size); | |
28 virtual bool OnRequestRedirected(int request_id, const GURL& new_url, | |
29 ResourceResponse* response, bool* defer); | |
30 virtual bool OnResponseStarted(int request_id, ResourceResponse* response); | |
31 virtual bool OnWillStart(int request_id, const GURL& url, bool* defer); | |
32 virtual bool OnWillRead(int request_id, net::IOBuffer** buf, int* buf_size, | |
33 int min_size); | |
34 virtual bool OnReadCompleted(int request_id, int* bytes_read); | |
35 virtual bool OnResponseCompleted(int request_id, | |
36 const net::URLRequestStatus& status, | |
37 const std::string& security_info); | |
38 virtual void OnRequestClosed(); | |
39 virtual void OnDataDownloaded(int request_id, int bytes_downloaded); | |
40 | |
41 static void GlobalCleanup(); | |
42 | |
43 private: | |
44 virtual ~AsyncResourceHandler(); | |
45 | |
46 scoped_refptr<SharedIOBuffer> read_buffer_; | |
47 ResourceMessageFilter* filter_; | |
48 int routing_id_; | |
49 ResourceDispatcherHost* rdh_; | |
50 | |
51 // |next_buffer_size_| is the size of the buffer to be allocated on the next | |
52 // OnWillRead() call. We exponentially grow the size of the buffer allocated | |
53 // when our owner fills our buffers. On the first OnWillRead() call, we | |
54 // allocate a buffer of 32k and double it in OnReadCompleted() if the buffer | |
55 // was filled, up to a maximum size of 512k. | |
56 int next_buffer_size_; | |
57 | |
58 DISALLOW_COPY_AND_ASSIGN(AsyncResourceHandler); | |
59 }; | |
60 | 11 |
61 #endif // CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_ | 12 #endif // CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_ |
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