1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_cache_DBAction_h
#define mozilla_dom_cache_DBAction_h
#include "mozilla/dom/cache/Action.h"
#include "mozilla/RefPtr.h"
#include "nsString.h"
class mozIStorageConnection;
class nsIFile;
namespace mozilla::dom::cache {
Result<nsCOMPtr<mozIStorageConnection>, nsresult> OpenDBConnection(
const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile& aDBFile);
class DBAction : public Action {
protected:
// The mode specifies whether the database should already exist or if its
// ok to create a new database.
enum Mode { Existing, Create };
explicit DBAction(Mode aMode);
// Action objects are deleted through their base pointer
virtual ~DBAction();
// Just as the resolver must be ref'd until resolve, you may also
// ref the DB connection. The connection can only be referenced from the
// target thread and must be released upon resolve.
virtual void RunWithDBOnTarget(
SafeRefPtr<Resolver> aResolver,
const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile* aDBDir,
mozIStorageConnection* aConn) = 0;
private:
void RunOnTarget(SafeRefPtr<Resolver> aResolver,
const Maybe<CacheDirectoryMetadata>& aDirectoryMetadata,
Data* aOptionalData) override;
Result<nsCOMPtr<mozIStorageConnection>, nsresult> OpenConnection(
const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile& aDBDir);
const Mode mMode;
};
class SyncDBAction : public DBAction {
protected:
explicit SyncDBAction(Mode aMode);
// Action objects are deleted through their base pointer
virtual ~SyncDBAction();
virtual nsresult RunSyncWithDBOnTarget(
const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile* aDBDir,
mozIStorageConnection* aConn) = 0;
private:
virtual void RunWithDBOnTarget(
SafeRefPtr<Resolver> aResolver,
const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile* aDBDir,
mozIStorageConnection* aConn) override;
};
} // namespace mozilla::dom::cache
#endif // mozilla_dom_cache_DBAction_h
|
