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Side by Side Diff: ui/file_manager/zip_archiver/unpacker/cpp/compressor_io_javascript_stream.h

Issue 2804453002: Move files from zip_archiver/unpacker/ to zip_archiver/. (Closed)
Patch Set: Move files from zip_archiver/unpacker/ to zip_archiver/. Created 3 years, 8 months ago
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1 // Copyright 2017 The Chromium OS 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 COMPRESSOR_IO_JAVSCRIPT_STREAM_H_
6 #define COMPRESSOR_IO_JAVSCRIPT_STREAM_H_
7
8 #include <pthread.h>
9 #include <string>
10
11 #include "archive.h"
12 #include "ppapi/cpp/instance_handle.h"
13 #include "ppapi/cpp/var_array_buffer.h"
14 #include "ppapi/utility/completion_callback_factory.h"
15 #include "ppapi/utility/threading/lock.h"
16 #include "ppapi/utility/threading/simple_thread.h"
17
18 #include "compressor_stream.h"
19 #include "javascript_compressor_requestor_interface.h"
20
21 class CompressorIOJavaScriptStream : public CompressorStream {
22 public:
23 CompressorIOJavaScriptStream(
24 JavaScriptCompressorRequestorInterface* requestor);
25
26 virtual ~CompressorIOJavaScriptStream();
27
28 virtual int64_t Write(int64_t bytes_to_read,
29 const pp::VarArrayBuffer& buffer);
30
31 virtual void WriteChunkDone(int64_t write_bytes);
32
33 virtual int64_t Read(int64_t bytes_to_read, char* destination_buffer);
34
35 virtual void ReadFileChunkDone(int64_t read_bytes,
36 pp::VarArrayBuffer* buffer);
37
38 private:
39 // A requestor that makes calls to JavaScript to read and write chunks.
40 JavaScriptCompressorRequestorInterface* requestor_;
41
42 pthread_mutex_t shared_state_lock_;
43 pthread_cond_t available_data_cond_;
44 pthread_cond_t data_written_cond_;
45
46 // The bytelength of the data written onto the archive for the last write
47 // chunk request. If this value is negative, some error occurred when writing
48 // a chunk in JavaScript.
49 int64_t written_bytes_;
50
51 // The bytelength of the data read from the entry for the last read file chunk
52 // request. If this value is negative, some error occurred when reading a
53 // chunk in JavaScript.
54 int64_t read_bytes_;
55
56 // True if destination_buffer_ is available.
57 bool available_data_;
58
59 // Stores the data read from JavaScript.
60 char* destination_buffer_;
61 };
62
63 #endif // COMPRESSOR_IO_JAVSCRIPT_STREAM_H_
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