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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 "base/location.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/task_runner_util.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/disk_cache/flash/flash_entry_impl.h"
#include "net/disk_cache/flash/internal_entry.h"
namespace disk_cache {
FlashEntryImpl::FlashEntryImpl(const std::string& key,
LogStore* store,
base::MessageLoopProxy* cache_thread)
: init_(false),
key_(key),
new_internal_entry_(new InternalEntry(key, store)),
cache_thread_(cache_thread) {
memset(stream_sizes_, 0, sizeof(stream_sizes_));
}
FlashEntryImpl::FlashEntryImpl(int32 id,
LogStore* store,
base::MessageLoopProxy* cache_thread)
: init_(false),
old_internal_entry_(new InternalEntry(id, store)),
cache_thread_(cache_thread) {
}
int FlashEntryImpl::Init(const CompletionCallback& callback) {
if (new_internal_entry_.get()) {
DCHECK(callback.is_null());
init_ = true;
return net::OK;
}
DCHECK(!callback.is_null() && old_internal_entry_.get());
callback_ = callback;
PostTaskAndReplyWithResult(cache_thread_.get(),
FROM_HERE,
Bind(&InternalEntry::Init, old_internal_entry_),
Bind(&FlashEntryImpl::OnInitComplete, this));
return net::ERR_IO_PENDING;
}
void FlashEntryImpl::Doom() {
DCHECK(init_);
NOTREACHED();
}
void FlashEntryImpl::Close() {
DCHECK(init_);
Release();
}
std::string FlashEntryImpl::GetKey() const {
DCHECK(init_);
return key_;
}
base::Time FlashEntryImpl::GetLastUsed() const {
DCHECK(init_);
NOTREACHED();
return base::Time::Now();
}
base::Time FlashEntryImpl::GetLastModified() const {
DCHECK(init_);
NOTREACHED();
return base::Time::Now();
}
int32 FlashEntryImpl::GetDataSize(int index) const {
DCHECK(init_);
return new_internal_entry_->GetDataSize(index);
}
int FlashEntryImpl::ReadData(int index, int offset, IOBuffer* buf, int buf_len,
const CompletionCallback& callback) {
DCHECK(init_);
return new_internal_entry_->ReadData(index, offset, buf, buf_len, callback);
}
int FlashEntryImpl::WriteData(int index, int offset, IOBuffer* buf, int buf_len,
const CompletionCallback& callback,
bool truncate) {
DCHECK(init_);
return new_internal_entry_->WriteData(index, offset, buf, buf_len, callback);
}
int FlashEntryImpl::ReadSparseData(int64 offset, IOBuffer* buf, int buf_len,
const CompletionCallback& callback) {
DCHECK(init_);
NOTREACHED();
return net::ERR_FAILED;
}
int FlashEntryImpl::WriteSparseData(int64 offset, IOBuffer* buf, int buf_len,
const CompletionCallback& callback) {
DCHECK(init_);
NOTREACHED();
return net::ERR_FAILED;
}
int FlashEntryImpl::GetAvailableRange(int64 offset, int len, int64* start,
const CompletionCallback& callback) {
DCHECK(init_);
NOTREACHED();
return net::ERR_FAILED;
}
bool FlashEntryImpl::CouldBeSparse() const {
DCHECK(init_);
NOTREACHED();
return false;
}
void FlashEntryImpl::CancelSparseIO() {
DCHECK(init_);
NOTREACHED();
}
int FlashEntryImpl::ReadyForSparseIO(const CompletionCallback& callback) {
DCHECK(init_);
NOTREACHED();
return net::ERR_FAILED;
}
void FlashEntryImpl::OnInitComplete(
scoped_ptr<KeyAndStreamSizes> key_and_stream_sizes) {
DCHECK(!callback_.is_null());
if (!key_and_stream_sizes) {
callback_.Run(net::ERR_FAILED);
} else {
key_ = key_and_stream_sizes->key;
memcpy(stream_sizes_, key_and_stream_sizes->stream_sizes,
sizeof(stream_sizes_));
init_ = true;
callback_.Run(net::OK);
}
}
FlashEntryImpl::~FlashEntryImpl() {
cache_thread_->PostTask(FROM_HERE,
Bind(&InternalEntry::Close, new_internal_entry_));
}
} // namespace disk_cache
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