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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/leveldb/leveldb_app.h" | 5 #include "components/leveldb/leveldb_app.h" |
6 | 6 |
7 #include "components/leveldb/env_mojo.h" | 7 #include "components/leveldb/leveldb_service_impl.h" |
8 #include "components/leveldb/leveldb_database_impl.h" | |
9 #include "components/leveldb/util.h" | |
10 #include "mojo/shell/public/cpp/connection.h" | 8 #include "mojo/shell/public/cpp/connection.h" |
11 #include "third_party/leveldatabase/env_chromium.h" | |
12 #include "third_party/leveldatabase/src/include/leveldb/db.h" | |
13 #include "third_party/leveldatabase/src/include/leveldb/env.h" | |
14 #include "third_party/leveldatabase/src/include/leveldb/filter_policy.h" | |
15 #include "third_party/leveldatabase/src/include/leveldb/slice.h" | |
16 | 9 |
17 namespace leveldb { | 10 namespace leveldb { |
18 | 11 |
19 LevelDBApp::LevelDBApp() {} | 12 LevelDBApp::LevelDBApp() {} |
20 | 13 |
21 LevelDBApp::~LevelDBApp() {} | 14 LevelDBApp::~LevelDBApp() {} |
22 | 15 |
23 void LevelDBApp::Initialize(mojo::Shell* shell, | 16 void LevelDBApp::Initialize(mojo::Shell* shell, |
24 const std::string& url, | 17 const std::string& url, |
25 uint32_t id) { | 18 uint32_t id) { |
26 tracing_.Initialize(shell, url); | 19 tracing_.Initialize(shell, url); |
27 thread_ = new LevelDBFileThread; | 20 service_.reset(new LevelDBServiceImpl); |
28 } | 21 } |
29 | 22 |
30 bool LevelDBApp::AcceptConnection(mojo::Connection* connection) { | 23 bool LevelDBApp::AcceptConnection(mojo::Connection* connection) { |
31 connection->AddInterface<LevelDBService>(this); | 24 connection->AddInterface<LevelDBService>(this); |
32 return true; | 25 return true; |
33 } | 26 } |
34 | 27 |
35 void LevelDBApp::Create(mojo::Connection* connection, | 28 void LevelDBApp::Create(mojo::Connection* connection, |
36 mojo::InterfaceRequest<LevelDBService> request) { | 29 mojo::InterfaceRequest<LevelDBService> request) { |
37 bindings_.AddBinding(this, std::move(request)); | 30 bindings_.AddBinding(service_.get(), std::move(request)); |
38 } | |
39 | |
40 void LevelDBApp::Open(filesystem::DirectoryPtr directory, | |
41 const mojo::String& dbname, | |
42 mojo::InterfaceRequest<LevelDBDatabase> database, | |
43 const OpenCallback& callback) { | |
44 // This is the place where we open a database. | |
45 leveldb::Options options; | |
46 options.create_if_missing = true; | |
47 options.paranoid_checks = true; | |
48 // TODO(erg): Do we need a filter policy? | |
49 options.reuse_logs = leveldb_env::kDefaultLogReuseOptionValue; | |
50 options.compression = leveldb::kSnappyCompression; | |
51 | |
52 // For info about the troubles we've run into with this parameter, see: | |
53 // https://code.google.com/p/chromium/issues/detail?id=227313#c11 | |
54 options.max_open_files = 80; | |
55 | |
56 // Register our directory with the file thread. | |
57 LevelDBFileThread::OpaqueDir* dir = | |
58 thread_->RegisterDirectory(std::move(directory)); | |
59 | |
60 scoped_ptr<MojoEnv> env_mojo(new MojoEnv(thread_, dir)); | |
61 options.env = env_mojo.get(); | |
62 | |
63 leveldb::DB* db = nullptr; | |
64 leveldb::Status s = leveldb::DB::Open(options, dbname.To<std::string>(), &db); | |
65 | |
66 if (s.ok()) { | |
67 new LevelDBDatabaseImpl(std::move(database), std::move(env_mojo), | |
68 scoped_ptr<leveldb::DB>(db)); | |
69 } | |
70 | |
71 callback.Run(LeveldbStatusToError(s)); | |
72 } | 31 } |
73 | 32 |
74 } // namespace leveldb | 33 } // namespace leveldb |
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