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fix recv cycle buffer crash and avoid send nak packet exceed mtu

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This commit is contained in:
xiongguangjie
2022-06-12 23:35:30 +08:00
parent 6503d95853
commit b771274a7f
4 changed files with 53 additions and 12 deletions
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17
srt/PacketQueue.cpp
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@@ -243,6 +243,7 @@ PacketRecvQueue::PacketRecvQueue(uint32_t max_size, uint32_t init_seq, uint32_t
, _pkt_expected_seq(init_seq)
, _pkt_buf(max_size) {}
bool PacketRecvQueue::inputPacket(DataPacket::Ptr pkt, std::list<DataPacket::Ptr> &out) {
// TraceL << dump() << " seq:" << pkt->packet_seq_number;
while (_size > 0 && _start == _end) {
if (_pkt_buf[_start]) {
out.push_back(_pkt_buf[_start]);
@@ -385,6 +386,8 @@ std::string PacketRecvQueue::dump() {
<< " first:" << getFirst()->packet_seq_number;
printer << " last:" << getLast()->packet_seq_number;
printer << " latency:" << timeLatency() / 1e3;
printer << " start:" << _start;
printer << " end:" << _end;
}
return std::move(printer);
}
@@ -438,8 +441,20 @@ void PacketRecvQueue::insertToCycleBuf(DataPacket::Ptr pkt, uint32_t diff) {
return;
}
_pkt_buf[pos] = pkt;
if (pos >= _end && (_start <= _end || pos < _start)) {
if (_start <= _end && pos >= _end) {
_end = (pos + 1) % _pkt_cap;
return;
}
if (_start <= _end && pos < _start) {
_end = (pos + 1) % _pkt_cap;
return;
}
if (_start > _end && _end <= pos && _start > pos) {
_end = (pos + 1) % _pkt_cap;
return;
}
}
void PacketRecvQueue::tryInsertPkt(DataPacket::Ptr pkt) {