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Side by Side Diff: net/url_request/url_request_simple_job.h

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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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_URL_REQUEST_URL_REQUEST_SIMPLE_JOB_H_
6 #define NET_URL_REQUEST_URL_REQUEST_SIMPLE_JOB_H_
7
8 #include <string>
9
10 #include "base/memory/ref_counted.h"
11 #include "base/memory/weak_ptr.h"
12 #include "base/strings/string_piece.h"
13 #include "net/base/completion_callback.h"
14 #include "net/base/net_export.h"
15 #include "net/url_request/url_range_request_job.h"
16
17 namespace base {
18 class RefCountedMemory;
19 }
20
21 namespace net {
22
23 class URLRequest;
24
25 class NET_EXPORT URLRequestSimpleJob : public URLRangeRequestJob {
26 public:
27 URLRequestSimpleJob(URLRequest* request, NetworkDelegate* network_delegate);
28
29 void Start() override;
30 bool ReadRawData(IOBuffer* buf, int buf_size, int* bytes_read) override;
31 bool GetMimeType(std::string* mime_type) const override;
32 bool GetCharset(std::string* charset) override;
33
34 protected:
35 ~URLRequestSimpleJob() override;
36
37 // Subclasses must override either GetData or GetRefCountedData to define the
38 // way response data is determined.
39 // The return value should be:
40 // - OK if data is obtained;
41 // - ERR_IO_PENDING if async processing is needed to finish obtaining data.
42 // This is the only case when |callback| should be called after
43 // completion of the operation. In other situations |callback| should
44 // never be called;
45 // - any other ERR_* code to indicate an error. This code will be used
46 // as the error code in the URLRequestStatus when the URLRequest
47 // is finished.
48 virtual int GetData(std::string* mime_type,
49 std::string* charset,
50 std::string* data,
51 const CompletionCallback& callback) const;
52
53 // Similar to GetData(), except |*data| can share ownership of the bytes
54 // instead of copying them into a std::string.
55 virtual int GetRefCountedData(std::string* mime_type,
56 std::string* charset,
57 scoped_refptr<base::RefCountedMemory>* data,
58 const CompletionCallback& callback) const;
59
60 // Returns the task runner used by ReadRawData. This method is virtual so
61 // that it can be overridden in tests.
62 virtual base::TaskRunner* GetTaskRunner() const;
63
64 void StartAsync();
65
66 private:
67 void OnGetDataCompleted(int result);
68 void OnReadCompleted(int bytes_read);
69
70 HttpByteRange byte_range_;
71 std::string mime_type_;
72 std::string charset_;
73 scoped_refptr<base::RefCountedMemory> data_;
74 int64 next_data_offset_;
75 scoped_refptr<base::TaskRunner> task_runner_;
76 base::WeakPtrFactory<URLRequestSimpleJob> weak_factory_;
77 };
78
79 } // namespace net
80
81 #endif // NET_URL_REQUEST_URL_REQUEST_SIMPLE_JOB_H_
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