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
3 // found in the LICENSE file.
5 #ifndef NET_HTTP_DISK_CACHE_BASED_QUIC_SERVER_INFO_H_
6 #define NET_HTTP_DISK_CACHE_BASED_QUIC_SERVER_INFO_H_
10 #include "base/memory/ref_counted.h"
11 #include "base/memory/weak_ptr.h"
12 #include "base/threading/non_thread_safe.h"
13 #include "net/base/completion_callback.h"
14 #include "net/disk_cache/disk_cache.h"
15 #include "net/quic/crypto/quic_server_info.h"
23 // DiskCacheBasedQuicServerInfo fetches information about a QUIC server from
24 // our standard disk cache. Since the information is defined to be
25 // non-sensitive, it's ok for us to keep it on disk.
26 class NET_EXPORT_PRIVATE DiskCacheBasedQuicServerInfo
27 : public QuicServerInfo,
28 public NON_EXPORTED_BASE(base::NonThreadSafe) {
30 DiskCacheBasedQuicServerInfo(const QuicServerId& server_id,
31 HttpCache* http_cache);
33 // QuicServerInfo implementation.
34 virtual void Start() OVERRIDE;
35 virtual int WaitForDataReady(const CompletionCallback& callback) OVERRIDE;
36 virtual bool IsDataReady() OVERRIDE;
37 virtual bool IsReadyToPersist() OVERRIDE;
38 virtual void Persist() OVERRIDE;
41 struct CacheOperationDataShim;
49 WAIT_FOR_DATA_READY_DONE,
51 CREATE_OR_OPEN_COMPLETE,
58 virtual ~DiskCacheBasedQuicServerInfo();
60 std::string key() const;
62 // The |unused| parameter is a small hack so that we can have the
63 // CacheOperationDataShim object owned by the Callback that is created for
64 // this method. See comment above CacheOperationDataShim for details.
65 void OnIOComplete(CacheOperationDataShim* unused, int rv);
69 int DoGetBackendComplete(int rv);
70 int DoOpenComplete(int rv);
71 int DoReadComplete(int rv);
72 int DoWriteComplete(int rv);
73 int DoCreateOrOpenComplete(int rv);
81 // DoWaitForDataReadyDone is the terminal state of the read operation.
82 int DoWaitForDataReadyDone();
84 // DoSetDone is the terminal state of the write operation.
87 CacheOperationDataShim* data_shim_; // Owned by |io_callback_|.
88 CompletionCallback io_callback_;
91 bool found_entry_; // Controls the behavior of DoCreateOrOpen.
92 std::string new_data_;
93 const QuicServerId server_id_;
94 HttpCache* const http_cache_;
95 disk_cache::Backend* backend_;
96 disk_cache::Entry* entry_;
97 CompletionCallback user_callback_;
98 scoped_refptr<IOBuffer> read_buffer_;
99 scoped_refptr<IOBuffer> write_buffer_;
102 base::WeakPtrFactory<DiskCacheBasedQuicServerInfo> weak_factory_;
107 #endif // NET_HTTP_DISK_CACHE_BASED_QUIC_SERVER_INFO_H_