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components/leveldb_proto/leveldb_database.cc

 // Copyright 2014 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 "components/leveldb_proto/leveldb_database.h"
 
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_split.h"
 #include "base/threading/thread_checker.h"
 #include "third_party/leveldatabase/env_chromium.h"
 #include "third_party/leveldatabase/src/helpers/memenv/memenv.h"
 #include "third_party/leveldatabase/src/include/leveldb/db.h"
 #include "third_party/leveldatabase/src/include/leveldb/env.h"
 #include "third_party/leveldatabase/src/include/leveldb/iterator.h"
 #include "third_party/leveldatabase/src/include/leveldb/options.h"
 #include "third_party/leveldatabase/src/include/leveldb/slice.h"
 #include "third_party/leveldatabase/src/include/leveldb/status.h"
 #include "third_party/leveldatabase/src/include/leveldb/write_batch.h"
 
 namespace leveldb_proto {
 
+// static
+bool LevelDB::Destroy(const base::FilePath& database_dir) {
+  const leveldb::Status s =
+      leveldb::DestroyDB(database_dir.AsUTF8Unsafe(), leveldb::Options());
+  return s.ok();
+}
+
 LevelDB::LevelDB(const char* client_name) : open_histogram_(nullptr) {
   // Used in lieu of UMA_HISTOGRAM_ENUMERATION because the histogram name is
   // not a constant.
   open_histogram_ = base::LinearHistogram::FactoryGet(
       std::string("LevelDB.Open.") + client_name, 1,
       leveldb_env::LEVELDB_STATUS_MAX, leveldb_env::LEVELDB_STATUS_MAX + 1,
       base::Histogram::kUmaTargetedHistogramFlag);
 }
 
 LevelDB::~LevelDB() {
@@ skipping 73 matching lines @@
   scoped_ptr<leveldb::Iterator> db_iterator(db_->NewIterator(options));
   for (db_iterator->SeekToFirst(); db_iterator->Valid(); db_iterator->Next()) {
     leveldb::Slice value_slice = db_iterator->value();
     std::string entry(value_slice.data(), value_slice.size());
     entries->push_back(entry);
   }
   return true;
 }
 
 }  // namespace leveldb_proto