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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 #include "net/base/chunked_upload_data_stream.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/stl_util.h" | |
| 9 #include "net/base/io_buffer.h" | |
| 10 #include "net/base/net_errors.h" | |
| 11 | |
| 12 namespace net { | |
| 13 | |
| 14 ChunkedUploadDataStream::ChunkedUploadDataStream(int64 identifier) | |
| 15 : UploadDataStream(true, identifier), | |
| 16 read_index_(0), | |
| 17 read_offset_(0), | |
| 18 all_data_appended_(false), | |
| 19 read_buffer_len_(0) { | |
| 20 } | |
| 21 | |
| 22 ChunkedUploadDataStream::~ChunkedUploadDataStream() { | |
| 23 } | |
| 24 | |
| 25 void ChunkedUploadDataStream::AppendData( | |
| 26 const char* data, int data_len, bool is_done) { | |
| 27 DCHECK(!all_data_appended_); | |
| 28 DCHECK(data_len > 0 || is_done); | |
| 29 if (data_len > 0) { | |
| 30 DCHECK(data); | |
| 31 upload_data_.push_back(new std::vector<char>(data, data + data_len)); | |
| 32 } | |
| 33 all_data_appended_ = is_done; | |
| 34 | |
| 35 if (!read_buffer_.get()) | |
| 36 return; | |
| 37 | |
| 38 int result = ReadChunk(read_buffer_.get(), read_buffer_len_); | |
| 39 // Shouldn't get an error or ERR_IO_PENDING. | |
| 40 DCHECK_GE(result, 0); | |
| 41 read_buffer_ = NULL; | |
| 42 read_buffer_len_ = 0; | |
| 43 OnReadCompleted(result); | |
| 44 } | |
| 45 | |
| 46 int ChunkedUploadDataStream::InitInternal() { | |
| 47 // ResetInternal should already have been called. | |
| 48 DCHECK(!read_buffer_.get()); | |
| 49 DCHECK_EQ(0u, read_index_); | |
| 50 DCHECK_EQ(0u, read_offset_); | |
| 51 return OK; | |
| 52 } | |
| 53 | |
| 54 int ChunkedUploadDataStream::ReadInternal(IOBuffer* buf, int buf_len) { | |
| 55 DCHECK_LT(0, buf_len); | |
| 56 DCHECK(!read_buffer_.get()); | |
| 57 | |
| 58 int result = ReadChunk(buf, buf_len); | |
| 59 if (result == ERR_IO_PENDING) { | |
| 60 read_buffer_ = buf; | |
| 61 read_buffer_len_ = buf_len; | |
| 62 } | |
| 63 return result; | |
| 64 } | |
| 65 | |
| 66 void ChunkedUploadDataStream::ResetInternal() { | |
| 67 read_buffer_ = NULL; | |
| 68 read_buffer_len_ = 0; | |
| 69 read_index_ = 0; | |
| 70 read_offset_ = 0; | |
| 71 } | |
| 72 | |
| 73 int ChunkedUploadDataStream::ReadChunk(IOBuffer* buf, int buf_len) { | |
| 74 // Copy as much data as possible from |upload_data_| to |buf|. | |
| 75 int bytes_read = 0; | |
| 76 while (read_index_ < upload_data_.size() && bytes_read < buf_len) { | |
| 77 std::vector<char>* data = upload_data_[read_index_]; | |
| 78 size_t bytes_to_read = | |
| 79 std::min(static_cast<size_t>(buf_len - bytes_read), | |
| 80 data->size() - read_offset_); | |
| 81 memcpy(buf->data() + bytes_read, | |
| 82 vector_as_array(data) + read_offset_, | |
| 83 bytes_to_read); | |
| 84 bytes_read += bytes_to_read; | |
| 85 read_offset_ += bytes_to_read; | |
| 86 if (read_offset_ == data->size()) { | |
| 87 read_index_++; | |
| 88 read_offset_ = 0; | |
| 89 } | |
| 90 } | |
| 91 DCHECK_LE(bytes_read, buf_len); | |
| 92 | |
| 93 // If no data was written, and not all data has been appended, return | |
| 94 // ERR_IO_PENDING. The read will be completed in the next call to AppendData. | |
| 95 if (bytes_read == 0 && !all_data_appended_) | |
| 96 return ERR_IO_PENDING; | |
| 97 | |
| 98 if (read_index_ == upload_data_.size() && all_data_appended_) | |
| 99 SetIsFinalChunk(); | |
| 100 return bytes_read; | |
| 101 } | |
| 102 | |
| 103 } // namespace net | |
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Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master