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Attempted fix of disconnect when switching from TCP to UDP.

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irungentoo 2015-11-19 15:03:02 -05:00
parent 61c20d48aa
commit 0c29c00125
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GPG Key ID: 10349DC9BED89E98
2 changed files with 48 additions and 30 deletions
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76
toxcore/net_crypto.c
View File

@ -501,6 +501,14 @@ static int send_packet_to(Net_Crypto *c, int crypt_connection_id, const uint8_t
int ret = send_packet_tcp_connection(c->tcp_c, conn->connection_number_tcp, data, length);
pthread_mutex_unlock(&c->tcp_mutex);
pthread_mutex_lock(&conn->mutex);
if (ret == 0) {
conn->last_tcp_sent = current_time_monotonic();
}
pthread_mutex_unlock(&conn->mutex);
if (ret == 0 || direct_send_attempt) {
return 0;
}
@ -2190,40 +2198,48 @@ static void send_crypto_packets(Net_Crypto *c)
unsigned int n_p_pos = conn->last_sendqueue_counter % CONGESTION_LAST_SENT_ARRAY_SIZE;
conn->last_num_packets_sent[n_p_pos] = packets_sent;
long signed int total_sent = 0;
//TODO use real delay
unsigned int delay = (unsigned int)((conn->rtt_time / PACKET_COUNTER_AVERAGE_INTERVAL) + 0.5);
unsigned int packets_set_rem_array = (CONGESTION_LAST_SENT_ARRAY_SIZE - CONGESTION_QUEUE_ARRAY_SIZE);
_Bool direct_connected = 0;
crypto_connection_status(c, i, &direct_connected, NULL);
if (delay > packets_set_rem_array) {
delay = packets_set_rem_array;
}
for (j = 0; j < CONGESTION_QUEUE_ARRAY_SIZE; ++j) {
total_sent += conn->last_num_packets_sent[(j + (packets_set_rem_array - delay) + n_p_pos) %
CONGESTION_LAST_SENT_ARRAY_SIZE];
}
total_sent -= sum;
/* if queue is too big only allow resending packets. */
uint32_t npackets = num_packets_array(&conn->send_array);
double min_speed = 1000.0 * (((double)(total_sent)) / ((double)(CONGESTION_QUEUE_ARRAY_SIZE) *
PACKET_COUNTER_AVERAGE_INTERVAL));
double send_array_ratio = (((double)npackets) / min_speed);
//TODO: Improve formula?
if (send_array_ratio > SEND_QUEUE_RATIO && CRYPTO_MIN_QUEUE_LENGTH < npackets) {
conn->packet_send_rate = min_speed * (1.0 / (send_array_ratio / SEND_QUEUE_RATIO));
} else if (conn->last_congestion_event + CONGESTION_EVENT_TIMEOUT < temp_time) {
conn->packet_send_rate = min_speed * 1.2;
if (direct_connected && conn->last_tcp_sent + CONGESTION_EVENT_TIMEOUT > temp_time) {
/* When switching from TCP to UDP, don't change the packet send rate for CONGESTION_EVENT_TIMEOUT ms. */
} else {
conn->packet_send_rate = min_speed * 0.9;
}
long signed int total_sent = 0;
if (conn->packet_send_rate < CRYPTO_PACKET_MIN_RATE) {
conn->packet_send_rate = CRYPTO_PACKET_MIN_RATE;
//TODO use real delay
unsigned int delay = (unsigned int)((conn->rtt_time / PACKET_COUNTER_AVERAGE_INTERVAL) + 0.5);
unsigned int packets_set_rem_array = (CONGESTION_LAST_SENT_ARRAY_SIZE - CONGESTION_QUEUE_ARRAY_SIZE);
if (delay > packets_set_rem_array) {
delay = packets_set_rem_array;
}
for (j = 0; j < CONGESTION_QUEUE_ARRAY_SIZE; ++j) {
total_sent += conn->last_num_packets_sent[(j + (packets_set_rem_array - delay) + n_p_pos) %
CONGESTION_LAST_SENT_ARRAY_SIZE];
}
total_sent -= sum;
/* if queue is too big only allow resending packets. */
uint32_t npackets = num_packets_array(&conn->send_array);
double min_speed = 1000.0 * (((double)(total_sent)) / ((double)(CONGESTION_QUEUE_ARRAY_SIZE) *
PACKET_COUNTER_AVERAGE_INTERVAL));
double send_array_ratio = (((double)npackets) / min_speed);
//TODO: Improve formula?
if (send_array_ratio > SEND_QUEUE_RATIO && CRYPTO_MIN_QUEUE_LENGTH < npackets) {
conn->packet_send_rate = min_speed * (1.0 / (send_array_ratio / SEND_QUEUE_RATIO));
} else if (conn->last_congestion_event + CONGESTION_EVENT_TIMEOUT < temp_time) {
conn->packet_send_rate = min_speed * 1.2;
} else {
conn->packet_send_rate = min_speed * 0.9;
}
if (conn->packet_send_rate < CRYPTO_PACKET_MIN_RATE) {
conn->packet_send_rate = CRYPTO_PACKET_MIN_RATE;
}
}
}

2
toxcore/net_crypto.h
View File

@ -124,6 +124,8 @@ typedef struct {
uint64_t direct_lastrecv_timev4; /* The Time at which we last received a direct packet in ms. */
uint64_t direct_lastrecv_timev6;
uint64_t last_tcp_sent; /* Time the last TCP packet was sent. */
Packets_Array send_array;
Packets_Array recv_array;