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Unified Diff: net/disk_cache/cache_creator.cc

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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Index: net/disk_cache/cache_creator.cc
diff --git a/net/disk_cache/cache_creator.cc b/net/disk_cache/cache_creator.cc
deleted file mode 100644
index 93c06b3232df511a7a1eb9d50d536e883015a67b..0000000000000000000000000000000000000000
--- a/net/disk_cache/cache_creator.cc
+++ /dev/null
@@ -1,196 +0,0 @@
-// 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/files/file_path.h"
-#include "base/metrics/field_trial.h"
-#include "base/profiler/scoped_tracker.h"
-#include "base/single_thread_task_runner.h"
-#include "base/strings/stringprintf.h"
-#include "net/base/cache_type.h"
-#include "net/base/net_errors.h"
-#include "net/disk_cache/blockfile/backend_impl.h"
-#include "net/disk_cache/cache_util.h"
-#include "net/disk_cache/disk_cache.h"
-#include "net/disk_cache/memory/mem_backend_impl.h"
-#include "net/disk_cache/simple/simple_backend_impl.h"
-
-namespace {
-
-// Builds an instance of the backend depending on platform, type, experiments
-// etc. Takes care of the retry state. This object will self-destroy when
-// finished.
-class CacheCreator {
- public:
- CacheCreator(const base::FilePath& path,
- bool force,
- int max_bytes,
- net::CacheType type,
- net::BackendType backend_type,
- uint32 flags,
- const scoped_refptr<base::SingleThreadTaskRunner>& thread,
- net::NetLog* net_log,
- scoped_ptr<disk_cache::Backend>* backend,
- const net::CompletionCallback& callback);
-
- // Creates the backend.
- int Run();
-
- private:
- ~CacheCreator();
-
- void DoCallback(int result);
-
- void OnIOComplete(int result);
-
- const base::FilePath path_;
- bool force_;
- bool retry_;
- int max_bytes_;
- net::CacheType type_;
- net::BackendType backend_type_;
- uint32 flags_;
- scoped_refptr<base::SingleThreadTaskRunner> thread_;
- scoped_ptr<disk_cache::Backend>* backend_;
- net::CompletionCallback callback_;
- scoped_ptr<disk_cache::Backend> created_cache_;
- net::NetLog* net_log_;
-
- DISALLOW_COPY_AND_ASSIGN(CacheCreator);
-};
-
-CacheCreator::CacheCreator(
- const base::FilePath& path,
- bool force,
- int max_bytes,
- net::CacheType type,
- net::BackendType backend_type,
- uint32 flags,
- const scoped_refptr<base::SingleThreadTaskRunner>& thread,
- net::NetLog* net_log,
- scoped_ptr<disk_cache::Backend>* backend,
- const net::CompletionCallback& callback)
- : path_(path),
- force_(force),
- retry_(false),
- max_bytes_(max_bytes),
- type_(type),
- backend_type_(backend_type),
- flags_(flags),
- thread_(thread),
- backend_(backend),
- callback_(callback),
- net_log_(net_log) {
-}
-
-CacheCreator::~CacheCreator() {
-}
-
-int CacheCreator::Run() {
-#if defined(OS_ANDROID)
- static const bool kSimpleBackendIsDefault = true;
-#else
- static const bool kSimpleBackendIsDefault = false;
-#endif
- if (backend_type_ == net::CACHE_BACKEND_SIMPLE ||
- (backend_type_ == net::CACHE_BACKEND_DEFAULT &&
- kSimpleBackendIsDefault)) {
- disk_cache::SimpleBackendImpl* simple_cache =
- new disk_cache::SimpleBackendImpl(
- path_, max_bytes_, type_, thread_, net_log_);
- created_cache_.reset(simple_cache);
- return simple_cache->Init(
- base::Bind(&CacheCreator::OnIOComplete, base::Unretained(this)));
- }
-
- // Avoid references to blockfile functions on Android to reduce binary size.
-#if defined(OS_ANDROID)
- return net::ERR_FAILED;
-#else
- disk_cache::BackendImpl* new_cache =
- new disk_cache::BackendImpl(path_, thread_, net_log_);
- created_cache_.reset(new_cache);
- new_cache->SetMaxSize(max_bytes_);
- new_cache->SetType(type_);
- new_cache->SetFlags(flags_);
- int rv = new_cache->Init(
- base::Bind(&CacheCreator::OnIOComplete, base::Unretained(this)));
- DCHECK_EQ(net::ERR_IO_PENDING, rv);
- return rv;
-#endif
-}
-
-void CacheCreator::DoCallback(int result) {
- DCHECK_NE(net::ERR_IO_PENDING, result);
- if (result == net::OK) {
-#ifndef USE_TRACING_CACHE_BACKEND
- *backend_ = created_cache_.Pass();
-#else
- *backend_.reset(
- new disk_cache::TracingCacheBackend(created_cache_.Pass()));
-#endif
- } else {
- LOG(ERROR) << "Unable to create cache";
- created_cache_.reset();
- }
- callback_.Run(result);
- delete this;
-}
-
-// If the initialization of the cache fails, and |force| is true, we will
-// discard the whole cache and create a new one.
-void CacheCreator::OnIOComplete(int result) {
- // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed.
- tracked_objects::ScopedTracker tracking_profile(
- FROM_HERE_WITH_EXPLICIT_FUNCTION("422516 CacheCreator::OnIOComplete"));
-
- if (result == net::OK || !force_ || retry_)
- return DoCallback(result);
-
- // This is a failure and we are supposed to try again, so delete the object,
- // delete all the files, and try again.
- retry_ = true;
- created_cache_.reset();
- if (!disk_cache::DelayedCacheCleanup(path_))
- return DoCallback(result);
-
- // The worker thread will start deleting files soon, but the original folder
- // is not there anymore... let's create a new set of files.
- int rv = Run();
- DCHECK_EQ(net::ERR_IO_PENDING, rv);
-}
-
-} // namespace
-
-namespace disk_cache {
-
-int CreateCacheBackend(
- net::CacheType type,
- net::BackendType backend_type,
- const base::FilePath& path,
- int max_bytes,
- bool force,
- const scoped_refptr<base::SingleThreadTaskRunner>& thread,
- net::NetLog* net_log,
- scoped_ptr<Backend>* backend,
- const net::CompletionCallback& callback) {
- DCHECK(!callback.is_null());
- if (type == net::MEMORY_CACHE) {
- *backend = disk_cache::MemBackendImpl::CreateBackend(max_bytes, net_log);
- return *backend ? net::OK : net::ERR_FAILED;
- }
- DCHECK(thread.get());
- CacheCreator* creator = new CacheCreator(path,
- force,
- max_bytes,
- type,
- backend_type,
- kNone,
- thread,
- net_log,
- backend,
- callback);
- return creator->Run();
-}
-
-} // namespace disk_cache
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