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srsLTE
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Deallocating buffers for ACKed RLC tx PDUs

This commit is contained in:
Paul Sutton 2017-06-25 14:35:41 +01:00
parent cec7b95d45
commit 89cc50c7c4
2 changed files with 10 additions and 6 deletions
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3
lib/include/srslte/common/buffer_pool.h
View File

@ -156,6 +156,9 @@ public:
return pool->allocate(debug_name);
}
void deallocate(byte_buffer_t *b) {
if(!b) {
return;
}
b->reset();
pool->deallocate(b);
}

13
lib/src/upper/rlc_am.cc
View File

@ -911,13 +911,13 @@ void rlc_am::handle_control_pdu(uint8_t *payload, uint32_t nof_bytes)
poll_retx_timeout.reset();
// Handle ACKs and NACKs
std::map<uint32_t, rlc_amd_tx_pdu_t>::iterator it;
bool update_vt_a = true;
uint32_t i = vt_a;
uint32_t i = vt_a;
while(TX_MOD_BASE(i) < TX_MOD_BASE(status.ack_sn) &&
TX_MOD_BASE(i) < TX_MOD_BASE(vt_s))
{
std::map<uint32_t, rlc_amd_tx_pdu_t>::iterator it;
bool nack = false;
for(uint32_t j=0;j<status.N_nack;j++) {
if(status.nacks[j].nack_sn == i) {
@ -960,11 +960,12 @@ void rlc_am::handle_control_pdu(uint8_t *payload, uint32_t nof_bytes)
if(tx_window.count(i) > 0) {
it = tx_window.find(i);
it->second.is_acked = true;
if(it->second.buf) {
pool->deallocate(it->second.buf);
it->second.buf = 0;
}
if(update_vt_a)
{
if(it->second.buf) {
pool->deallocate(it->second.buf);
}
tx_window.erase(it);
vt_a = (vt_a + 1)%MOD;
vt_ms = (vt_ms + 1)%MOD;