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Side by Side Diff: net/filter/filter.h

Issue 704493002: Revert "Sdch view for net-internals" (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 1 month ago
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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 // Filter performs filtering on data streams. Sample usage: 5 // Filter performs filtering on data streams. Sample usage:
6 // 6 //
7 // IStream* pre_filter_source; 7 // IStream* pre_filter_source;
8 // ... 8 // ...
9 // Filter* filter = Filter::Factory(filter_type, size); 9 // Filter* filter = Filter::Factory(filter_type, size);
10 // int pre_filter_data_len = filter->stream_buffer_size(); 10 // int pre_filter_data_len = filter->stream_buffer_size();
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53 #include "base/gtest_prod_util.h" 53 #include "base/gtest_prod_util.h"
54 #include "base/memory/ref_counted.h" 54 #include "base/memory/ref_counted.h"
55 #include "base/memory/scoped_ptr.h" 55 #include "base/memory/scoped_ptr.h"
56 #include "base/time/time.h" 56 #include "base/time/time.h"
57 #include "net/base/net_export.h" 57 #include "net/base/net_export.h"
58 58
59 class GURL; 59 class GURL;
60 60
61 namespace net { 61 namespace net {
62 62
63 class BoundNetLog; 63 class URLRequestContext;
64 class IOBuffer; 64 class IOBuffer;
65 class URLRequestContext;
66 65
67 //------------------------------------------------------------------------------ 66 //------------------------------------------------------------------------------
68 // Define an interface class that allows access to contextual information 67 // Define an interface class that allows access to contextual information
69 // supplied by the owner of this filter. In the case where there are a chain of 68 // supplied by the owner of this filter. In the case where there are a chain of
70 // filters, there is only one owner of all the chained filters, and that context 69 // filters, there is only one owner of all the chained filters, and that context
71 // is passed to the constructor of all those filters. To be clear, the context 70 // is passed to the constructor of all those filters. To be clear, the context
72 // does NOT reflect the position in a chain, or the fact that there are prior 71 // does NOT reflect the position in a chain, or the fact that there are prior
73 // or later filters in a chain. 72 // or later filters in a chain.
74 class NET_EXPORT_PRIVATE FilterContext { 73 class NET_EXPORT_PRIVATE FilterContext {
75 public: 74 public:
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116 // What response code was received with the associated network transaction? 115 // What response code was received with the associated network transaction?
117 // For example: 200 is ok. 4xx are error codes. etc. 116 // For example: 200 is ok. 4xx are error codes. etc.
118 virtual int GetResponseCode() const = 0; 117 virtual int GetResponseCode() const = 0;
119 118
120 // The URLRequestContext associated with the request. 119 // The URLRequestContext associated with the request.
121 virtual const URLRequestContext* GetURLRequestContext() const = 0; 120 virtual const URLRequestContext* GetURLRequestContext() const = 0;
122 121
123 // The following method forces the context to emit a specific set of 122 // The following method forces the context to emit a specific set of
124 // statistics as selected by the argument. 123 // statistics as selected by the argument.
125 virtual void RecordPacketStats(StatisticSelector statistic) const = 0; 124 virtual void RecordPacketStats(StatisticSelector statistic) const = 0;
126
127 // The BoundNetLog of the associated request.
128 virtual const BoundNetLog& GetNetLog() const = 0;
129 }; 125 };
130 126
131 //------------------------------------------------------------------------------ 127 //------------------------------------------------------------------------------
132 class NET_EXPORT_PRIVATE Filter { 128 class NET_EXPORT_PRIVATE Filter {
133 public: 129 public:
134 // Return values of function ReadFilteredData. 130 // Return values of function ReadFilteredData.
135 enum FilterStatus { 131 enum FilterStatus {
136 // Read filtered data successfully 132 // Read filtered data successfully
137 FILTER_OK, 133 FILTER_OK,
138 // Read filtered data successfully, and the data in the buffer has been 134 // Read filtered data successfully, and the data in the buffer has been
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297 // Remember what status or local filter last returned so we can better handle 293 // Remember what status or local filter last returned so we can better handle
298 // chained filters. 294 // chained filters.
299 FilterStatus last_status_; 295 FilterStatus last_status_;
300 296
301 DISALLOW_COPY_AND_ASSIGN(Filter); 297 DISALLOW_COPY_AND_ASSIGN(Filter);
302 }; 298 };
303 299
304 } // namespace net 300 } // namespace net
305 301
306 #endif // NET_FILTER_FILTER_H__ 302 #endif // NET_FILTER_FILTER_H__
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