| // Copyright 2010-2014, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "storage/registry.h" |
| |
| #include <string> |
| |
| #include "base/file_util.h" |
| #include "base/logging.h" |
| #include "base/mutex.h" |
| #include "base/scoped_ptr.h" |
| #include "base/singleton.h" |
| #include "base/system_util.h" |
| #include "storage/storage_interface.h" |
| #include "storage/tiny_storage.h" |
| |
| namespace mozc { |
| namespace storage { |
| |
| namespace { |
| Mutex g_mutex; |
| #ifdef OS_WIN |
| const char kRegistryFileName[] = "registry.db"; |
| #else |
| const char kRegistryFileName[] = ".registry.db"; // hidden file |
| #endif |
| |
| class StorageInitializer { |
| public: |
| StorageInitializer() : |
| default_storage_(TinyStorage::New()), current_storage_(NULL) { |
| if (!default_storage_->Open(FileUtil::JoinPath( |
| SystemUtil::GetUserProfileDirectory(), kRegistryFileName))) { |
| LOG(ERROR) << "cannot open registry"; |
| } |
| } |
| |
| StorageInterface *GetStorage() const { |
| if (current_storage_ == NULL) { |
| return default_storage_.get(); |
| } else { |
| return current_storage_; |
| } |
| } |
| |
| void SetStorage(StorageInterface *storage) { |
| current_storage_ = storage; |
| } |
| |
| private: |
| scoped_ptr<StorageInterface> default_storage_; |
| StorageInterface *current_storage_; |
| }; |
| } // namespace |
| |
| bool Registry::Erase(const string &key) { |
| scoped_lock l(&g_mutex); |
| return Singleton<StorageInitializer>::get()->GetStorage()->Erase(key); |
| } |
| |
| bool Registry::Sync() { |
| scoped_lock l(&g_mutex); |
| return Singleton<StorageInitializer>::get()->GetStorage()->Sync(); |
| } |
| |
| // clear internal keys and values |
| bool Registry::Clear() { |
| scoped_lock l(&g_mutex); |
| return Singleton<StorageInitializer>::get()->GetStorage()->Clear(); |
| } |
| |
| void Registry::SetStorage(StorageInterface *handler) { |
| VLOG(1) << "New storage interface is set"; |
| scoped_lock l(&g_mutex); |
| Singleton<StorageInitializer>::get()->SetStorage(handler); |
| } |
| |
| bool Registry::LookupInternal(const string &key, string *value) { |
| scoped_lock l(&g_mutex); // just for safe |
| return Singleton<StorageInitializer>::get()->GetStorage()->Lookup(key, value); |
| } |
| |
| bool Registry::InsertInternal(const string &key, const string &value) { |
| scoped_lock l(&g_mutex); |
| return Singleton<StorageInitializer>::get()->GetStorage()->Insert(key, value); |
| } |
| } // namespace storage |
| } // namespace mozc |