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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/pepper/quota_reservation.h"
#include <memory>
#include <tuple>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "storage/browser/file_system/file_system_operation_runner.h"
#include "storage/browser/file_system/quota/open_file_handle.h"
#include "storage/browser/file_system/quota/quota_reservation.h"
#include "storage/common/file_system/file_system_util.h"
#include "third_party/blink/public/common/storage_key/storage_key.h"
namespace content {
// static
scoped_refptr<QuotaReservation> QuotaReservation::Create(
scoped_refptr<storage::FileSystemContext> file_system_context,
const GURL& origin_url,
storage::FileSystemType type) {
return scoped_refptr<QuotaReservation>(
new QuotaReservation(file_system_context, origin_url, type));
}
QuotaReservation::QuotaReservation(
scoped_refptr<storage::FileSystemContext> file_system_context,
const GURL& origin_url,
storage::FileSystemType file_system_type)
: file_system_context_(file_system_context) {
quota_reservation_ =
file_system_context->CreateQuotaReservationOnFileTaskRunner(
blink::StorageKey::CreateFirstParty(url::Origin::Create(origin_url)),
file_system_type);
}
// For unit testing only.
QuotaReservation::QuotaReservation(
scoped_refptr<storage::QuotaReservation> quota_reservation,
const GURL& /* origin_url */,
storage::FileSystemType /* file_system_type */)
: quota_reservation_(quota_reservation) {
}
QuotaReservation::~QuotaReservation() {
// We should have no open files at this point.
DCHECK(files_.size() == 0);
for (auto it = files_.begin(); it != files_.end(); ++it)
delete it->second;
}
int64_t QuotaReservation::OpenFile(int32_t id,
const storage::FileSystemURL& url) {
base::FilePath platform_file_path;
if (file_system_context_) {
base::File::Error error =
file_system_context_->operation_runner()->SyncGetPlatformPath(
url, &platform_file_path);
if (error != base::File::FILE_OK) {
NOTREACHED();
}
} else {
// For test.
platform_file_path = url.path();
}
std::unique_ptr<storage::OpenFileHandle> file_handle =
quota_reservation_->GetOpenFileHandle(platform_file_path);
std::pair<FileMap::iterator, bool> insert_result =
files_.insert(std::make_pair(id, file_handle.get()));
if (insert_result.second) {
int64_t max_written_offset = file_handle->GetMaxWrittenOffset();
std::ignore = file_handle.release();
return max_written_offset;
}
NOTREACHED();
}
void QuotaReservation::CloseFile(int32_t id,
const ppapi::FileGrowth& file_growth) {
auto it = files_.find(id);
if (it != files_.end()) {
it->second->UpdateMaxWrittenOffset(file_growth.max_written_offset);
it->second->AddAppendModeWriteAmount(file_growth.append_mode_write_amount);
delete it->second;
files_.erase(it);
} else {
NOTREACHED();
}
}
void QuotaReservation::ReserveQuota(int64_t amount,
const ppapi::FileGrowthMap& file_growths,
ReserveQuotaCallback callback) {
for (auto it = files_.begin(); it != files_.end(); ++it) {
auto growth_it = file_growths.find(it->first);
if (growth_it != file_growths.end()) {
it->second->UpdateMaxWrittenOffset(growth_it->second.max_written_offset);
it->second->AddAppendModeWriteAmount(
growth_it->second.append_mode_write_amount);
} else {
NOTREACHED();
}
}
quota_reservation_->RefreshReservation(
amount, base::BindOnce(&QuotaReservation::GotReservedQuota, this,
std::move(callback)));
}
void QuotaReservation::OnClientCrash() { quota_reservation_->OnClientCrash(); }
void QuotaReservation::GotReservedQuota(ReserveQuotaCallback callback,
base::File::Error error) {
ppapi::FileSizeMap file_sizes;
for (auto it = files_.begin(); it != files_.end(); ++it)
file_sizes[it->first] = it->second->GetMaxWrittenOffset();
if (file_system_context_) {
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(std::move(callback),
quota_reservation_->remaining_quota(), file_sizes));
} else {
// Unit testing code path.
std::move(callback).Run(quota_reservation_->remaining_quota(), file_sizes);
}
}
void QuotaReservation::DeleteOnCorrectThread() const {
if (file_system_context_ && !file_system_context_->default_file_task_runner()
->RunsTasksInCurrentSequence()) {
file_system_context_->default_file_task_runner()->DeleteSoon(FROM_HERE,
this);
} else {
// We're on the right thread to delete, or unit test.
delete this;
}
}
} // namespace content
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