15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/upload_bytes_element_reader.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/stl_util.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/io_buffer.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_errors.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace net { 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)UploadBytesElementReader::UploadBytesElementReader(const char* bytes, 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) uint64 length) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : bytes_(bytes), 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) length_(length), 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) offset_(0) { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)UploadBytesElementReader::~UploadBytesElementReader() { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const UploadBytesElementReader* 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)UploadBytesElementReader::AsBytesReader() const { 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return this; 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)int UploadBytesElementReader::Init(const CompletionCallback& callback) { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) offset_ = 0; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return OK; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)uint64 UploadBytesElementReader::GetContentLength() const { 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return length_; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)uint64 UploadBytesElementReader::BytesRemaining() const { 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return length_ - offset_; 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool UploadBytesElementReader::IsInMemory() const { 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int UploadBytesElementReader::Read(IOBuffer* buf, 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int buf_length, 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const CompletionCallback& callback) { 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_LT(0, buf_length); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const size_t num_bytes_to_read = 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::min(BytesRemaining(), static_cast<uint64>(buf_length)); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check if we have anything to copy first, because we are getting 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the address of an element in |bytes_| and that will throw an 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // exception if |bytes_| is an empty vector. 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (num_bytes_to_read > 0) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(buf->data(), bytes_ + offset_, num_bytes_to_read); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) offset_ += num_bytes_to_read; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return num_bytes_to_read; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)UploadOwnedBytesElementReader::UploadOwnedBytesElementReader( 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<char>* data) 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : UploadBytesElementReader(vector_as_array(data), data->size()) { 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) data_.swap(*data); 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)UploadOwnedBytesElementReader::~UploadOwnedBytesElementReader() {} 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)UploadOwnedBytesElementReader* 742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)UploadOwnedBytesElementReader::CreateWithString(const std::string& string) { 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<char> data(string.begin(), string.end()); 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return new UploadOwnedBytesElementReader(&data); 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 80