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Side by Side Diff: net/base/chunked_upload_data_stream.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 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.
4
5 #ifndef NET_BASE_CHUNKED_UPLOAD_DATA_STREAM_H_
6 #define NET_BASE_CHUNKED_UPLOAD_DATA_STREAM_H_
7
8 #include <vector>
9
10 #include "base/macros.h"
11 #include "base/memory/ref_counted.h"
12 #include "base/memory/scoped_vector.h"
13 #include "net/base/completion_callback.h"
14 #include "net/base/net_export.h"
15 #include "net/base/upload_data_stream.h"
16
17 namespace net {
18
19 class IOBuffer;
20
21 // Class with a push-based interface for uploading data. Buffers all data until
22 // the request is completed. Not recommended for uploading large amounts of
23 // seekable data, due to this buffering behavior.
24 class NET_EXPORT ChunkedUploadDataStream : public UploadDataStream {
25 public:
26 ChunkedUploadDataStream(int64 identifier);
27
28 ~ChunkedUploadDataStream() override;
29
30 // Adds data to the stream. |is_done| should be true if this is the last
31 // data to be appended. |data_len| must not be 0 unless |is_done| is true.
32 // Once called with |is_done| being true, must never be called again.
33 // TODO(mmenke): Consider using IOBuffers instead, to reduce data copies.
34 void AppendData(const char* data, int data_len, bool is_done);
35
36 private:
37 // UploadDataStream implementation.
38 int InitInternal() override;
39 int ReadInternal(IOBuffer* buf, int buf_len) override;
40 void ResetInternal() override;
41
42 int ReadChunk(IOBuffer* buf, int buf_len);
43
44 // Index and offset of next element of |upload_data_| to be read.
45 size_t read_index_;
46 size_t read_offset_;
47
48 // True once all data has been appended to the stream.
49 bool all_data_appended_;
50
51 ScopedVector<std::vector<char>> upload_data_;
52
53 // Buffer to write the next read's data to. Only set when a call to
54 // ReadInternal reads no data.
55 scoped_refptr<IOBuffer> read_buffer_;
56 int read_buffer_len_;
57
58 DISALLOW_COPY_AND_ASSIGN(ChunkedUploadDataStream);
59 };
60
61 } // namespace net
62
63 #endif // NET_BASE_CHUNKED_UPLOAD_DATA_STREAM_H_
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