From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- ipc/chromium/src/base/revocable_store.cc | 49 ++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 ipc/chromium/src/base/revocable_store.cc (limited to 'ipc/chromium/src/base/revocable_store.cc') diff --git a/ipc/chromium/src/base/revocable_store.cc b/ipc/chromium/src/base/revocable_store.cc new file mode 100644 index 0000000000..9a586a5a61 --- /dev/null +++ b/ipc/chromium/src/base/revocable_store.cc @@ -0,0 +1,49 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +// Copyright (c) 2006-2008 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 "base/revocable_store.h" + +#include "base/logging.h" + +RevocableStore::Revocable::Revocable(RevocableStore* store) + : store_reference_(store->owning_reference_) { + // We AddRef() the owning reference. + DCHECK(store_reference_->store()); + store_reference_->store()->Add(this); +} + +RevocableStore::Revocable::~Revocable() { + if (!revoked()) { + // Notify the store of our destruction. + --(store_reference_->store()->count_); + } +} + +RevocableStore::RevocableStore() : count_(0) { + // Create a new owning reference. + owning_reference_ = new StoreRef(this); +} + +RevocableStore::~RevocableStore() { + // Revoke all the items in the store. + owning_reference_->set_store(NULL); +} + +void RevocableStore::Add(Revocable* item) { + DCHECK(!item->revoked()); + ++count_; +} + +void RevocableStore::RevokeAll() { + // We revoke all the existing items in the store and reset our count. + owning_reference_->set_store(NULL); + count_ = 0; + + // Then we create a new owning reference for new items that get added. + // This Release()s the old owning reference, allowing it to be freed after + // all the items that were in the store are eventually destroyed. + owning_reference_ = new StoreRef(this); +} -- cgit v1.2.3