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36 lines
916 B
Plaintext
36 lines
916 B
Plaintext
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/ios/callback_counter.h"
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CallbackCounter::CallbackCounter(const FinalCallback& final_callback)
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: callback_count_(0U), final_callback_(final_callback) {
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DCHECK(!final_callback.is_null());
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}
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CallbackCounter::~CallbackCounter() {
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DCHECK_EQ(0U, callback_count_);
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}
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void CallbackCounter::IncrementCount(int count) {
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DCHECK(thread_checker_.CalledOnValidThread());
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DCHECK(!final_callback_.is_null());
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callback_count_ += count;
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}
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void CallbackCounter::IncrementCount() {
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IncrementCount(1);
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}
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void CallbackCounter::DecrementCount() {
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DCHECK(thread_checker_.CalledOnValidThread());
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DCHECK(callback_count_);
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--callback_count_;
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if (callback_count_ == 0) {
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final_callback_.Run();
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final_callback_.Reset();
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}
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}
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