1 /*
2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include "modules/rtp_rtcp/source/dtmf_queue.h"
12 
13 #include <stddef.h>
14 
15 #include "rtc_base/checks.h"
16 
17 namespace {
18 constexpr size_t kDtmfOutbandMax = 20;
19 }
20 
21 namespace webrtc {
DtmfQueue()22 DtmfQueue::DtmfQueue() {}
23 
~DtmfQueue()24 DtmfQueue::~DtmfQueue() {}
25 
AddDtmf(const Event & event)26 bool DtmfQueue::AddDtmf(const Event& event) {
27   MutexLock lock(&dtmf_mutex_);
28   if (queue_.size() >= kDtmfOutbandMax) {
29     return false;
30   }
31   queue_.push_back(event);
32   return true;
33 }
34 
NextDtmf(Event * event)35 bool DtmfQueue::NextDtmf(Event* event) {
36   RTC_DCHECK(event);
37   MutexLock lock(&dtmf_mutex_);
38   if (queue_.empty()) {
39     return false;
40   }
41 
42   *event = queue_.front();
43   queue_.pop_front();
44   return true;
45 }
46 
PendingDtmf() const47 bool DtmfQueue::PendingDtmf() const {
48   MutexLock lock(&dtmf_mutex_);
49   return !queue_.empty();
50 }
51 }  // namespace webrtc
52