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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
3 // found in the LICENSE file.
4 
5 #ifndef NET_DISK_CACHE_NET_LOG_PARAMETERS_H_
6 #define NET_DISK_CACHE_NET_LOG_PARAMETERS_H_
7 
8 #include <string>
9 
10 #include "net/base/net_log.h"
11 
12 // This file contains a set of functions to create NetLog::ParametersCallbacks
13 // shared by EntryImpls and MemEntryImpls.
14 namespace disk_cache {
15 
16 class Entry;
17 
18 // Creates a NetLog callback that returns parameters for the creation of an
19 // Entry.  Contains the Entry's key and whether it was created or opened.
20 // |entry| can't be NULL, must support GetKey(), and must outlive the returned
21 // callback.
22 net::NetLog::ParametersCallback CreateNetLogEntryCreationCallback(
23     const Entry* entry,
24     bool created);
25 
26 // Creates a NetLog callback that returns parameters for start of a non-sparse
27 // read or write of an Entry.  For reads, |truncate| must be false.
28 net::NetLog::ParametersCallback CreateNetLogReadWriteDataCallback(
29     int index,
30     int offset,
31     int buf_len,
32     bool truncate);
33 
34 // Creates a NetLog callback that returns parameters for when a non-sparse
35 // read or write completes.  For reads, |truncate| must be false.
36 // |bytes_copied| is either the number of bytes copied or a network error
37 // code.  |bytes_copied| must not be ERR_IO_PENDING, as it's not a valid
38 // result for an operation.
39 net::NetLog::ParametersCallback CreateNetLogReadWriteCompleteCallback(
40     int bytes_copied);
41 
42 // Creates a NetLog callback that returns parameters for when a sparse
43 // operation is started.
44 net::NetLog::ParametersCallback CreateNetLogSparseOperationCallback(
45     int64 offset,
46     int buff_len);
47 
48 // Creates a NetLog callback that returns parameters for when a read or write
49 // for a sparse entry's child is started.
50 net::NetLog::ParametersCallback CreateNetLogSparseReadWriteCallback(
51     const net::NetLog::Source& source,
52     int child_len);
53 
54 // Creates a NetLog callback that returns parameters for when a call to
55 // GetAvailableRange returns.
56 net::NetLog::ParametersCallback CreateNetLogGetAvailableRangeResultCallback(
57     int64 start,
58     int result);
59 
60 }  // namespace disk_cache
61 
62 #endif  // NET_DISK_CACHE_NET_LOG_CACHE_PARAMETERS_H_
63