| // Copyright 2018 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 "chrome/chrome_cleaner/parsers/parser_utils/parse_tasks_remaining_counter.h" |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/synchronization/waitable_event.h" |
| |
| namespace chrome_cleaner { |
| |
| ParseTasksRemainingCounter::ParseTasksRemainingCounter( |
| size_t count, |
| base::WaitableEvent* done) |
| : count_(count), done_(done) { |
| DCHECK(count_ > 0) << "Must be constructed with a positive count."; |
| } |
| |
| void ParseTasksRemainingCounter::Increment() { |
| DCHECK(count_ > 0) |
| << "Once decremented to zero, Increment should never be called."; |
| count_++; |
| } |
| |
| void ParseTasksRemainingCounter::Decrement() { |
| DCHECK(count_); |
| count_--; |
| if (count_ == 0) { |
| done_->Signal(); |
| } |
| } |
| |
| } // namespace chrome_cleaner |
