ipc/chromium/src/base/revocable_store.cc@a63d609f5ebe
ipc/chromium/src/base/revocable_store.cc
Thu, 15 Jan 2015 15:55:04 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:55:04 +0100
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
- permissions
- -rw-r--r--
Back out 97036ab72558 which inappropriately compared turds to third parties.
1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/revocable_store.h"
7 #include "base/logging.h"
9 RevocableStore::Revocable::Revocable(RevocableStore* store)
10 : store_reference_(store->owning_reference_) {
11 // We AddRef() the owning reference.
12 DCHECK(store_reference_->store());
13 store_reference_->store()->Add(this);
14 }
16 RevocableStore::Revocable::~Revocable() {
17 if (!revoked()) {
18 // Notify the store of our destruction.
19 --(store_reference_->store()->count_);
20 }
21 }
23 RevocableStore::RevocableStore() : count_(0) {
24 // Create a new owning reference.
25 owning_reference_ = new StoreRef(this);
26 }
28 RevocableStore::~RevocableStore() {
29 // Revoke all the items in the store.
30 owning_reference_->set_store(NULL);
31 }
33 void RevocableStore::Add(Revocable* item) {
34 DCHECK(!item->revoked());
35 ++count_;
36 }
38 void RevocableStore::RevokeAll() {
39 // We revoke all the existing items in the store and reset our count.
40 owning_reference_->set_store(NULL);
41 count_ = 0;
43 // Then we create a new owning reference for new items that get added.
44 // This Release()s the old owning reference, allowing it to be freed after
45 // all the items that were in the store are eventually destroyed.
46 owning_reference_ = new StoreRef(this);
47 }
