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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/upload_data.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/threading/worker_pool.h"
namespace net {
namespace {
// Helper function for GetContentLength().
void OnGetContentLengthComplete(
const UploadData::ContentLengthCallback& callback,
uint64* content_length) {
callback.Run(*content_length);
}
} // namespace
UploadData::UploadData()
: identifier_(0),
chunk_callback_(NULL),
is_chunked_(false),
last_chunk_appended_(false) {
}
void UploadData::AppendBytes(const char* bytes, int bytes_len) {
DCHECK(!is_chunked_);
if (bytes_len > 0) {
elements_.push_back(UploadElement());
elements_.back().SetToBytes(bytes, bytes_len);
}
}
void UploadData::AppendFileRange(const FilePath& file_path,
uint64 offset, uint64 length,
const base::Time& expected_modification_time) {
DCHECK(!is_chunked_);
elements_.push_back(UploadElement());
elements_.back().SetToFilePathRange(file_path, offset, length,
expected_modification_time);
}
void UploadData::AppendChunk(const char* bytes,
int bytes_len,
bool is_last_chunk) {
DCHECK(is_chunked_);
DCHECK(!last_chunk_appended_);
elements_.push_back(UploadElement());
elements_.back().SetToBytes(bytes, bytes_len);
last_chunk_appended_ = is_last_chunk;
if (chunk_callback_)
chunk_callback_->OnChunkAvailable();
}
void UploadData::set_chunk_callback(ChunkCallback* callback) {
chunk_callback_ = callback;
}
void UploadData::GetContentLength(const ContentLengthCallback& callback) {
uint64* result = new uint64(0);
const bool task_is_slow = true;
const bool posted = base::WorkerPool::PostTaskAndReply(
FROM_HERE,
base::Bind(&UploadData::DoGetContentLength, this, result),
base::Bind(&OnGetContentLengthComplete, callback, base::Owned(result)),
task_is_slow);
DCHECK(posted);
}
uint64 UploadData::GetContentLengthSync() {
uint64 content_length = 0;
DoGetContentLength(&content_length);
return content_length;
}
bool UploadData::IsInMemory() const {
// Chunks are in memory, but UploadData does not have all the chunks at
// once. Chunks are provided progressively with AppendChunk() as chunks
// are ready. Check is_chunked_ here, rather than relying on the loop
// below, as there is a case that is_chunked_ is set to true, but the
// first chunk is not yet delivered.
if (is_chunked_)
return false;
for (size_t i = 0; i < elements_.size(); ++i) {
if (elements_[i].type() != UploadElement::TYPE_BYTES)
return false;
}
return true;
}
void UploadData::ResetOffset() {
for (size_t i = 0; i < elements_.size(); ++i)
elements_[i].ResetOffset();
}
void UploadData::SetElements(const std::vector<UploadElement>& elements) {
elements_ = elements;
}
void UploadData::DoGetContentLength(uint64* content_length) {
*content_length = 0;
if (is_chunked_)
return;
for (size_t i = 0; i < elements_.size(); ++i)
*content_length += elements_[i].GetContentLength();
}
UploadData::~UploadData() {
}
} // namespace net
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