static void _tcpchild_free(TCPChild* child) {
MAGIC_ASSERT(child);
/* make sure our tcp doesnt try to free the child again */
child->tcp->child = NULL;
descriptor_unref(child->tcp);
descriptor_unref(child->parent);
MAGIC_CLEAR(child);
g_free(child);
}
void networkinterface_free(NetworkInterface* interface) {
MAGIC_ASSERT(interface);
/* unref all packets sitting in our input buffer */
while(interface->inBuffer && !g_queue_is_empty(interface->inBuffer)) {
Packet* packet = g_queue_pop_head(interface->inBuffer);
packet_unref(packet);
}
g_queue_free(interface->inBuffer);
/* unref all sockets wanting to send */
while(interface->rrQueue && !g_queue_is_empty(interface->rrQueue)) {
Socket* socket = g_queue_pop_head(interface->rrQueue);
descriptor_unref(socket);
}
g_queue_free(interface->rrQueue);
priorityqueue_free(interface->fifoQueue);
g_hash_table_destroy(interface->boundSockets);
dns_deregister(worker_getDNS(), interface->address);
address_unref(interface->address);
if(interface->pcapFile) {
fclose(interface->pcapFile);
}
MAGIC_CLEAR(interface);
g_free(interface);
}
void tcpretransmittimerexpired_free(TCPRetransmitTimerExpiredEvent* event) {
MAGIC_ASSERT(event);
descriptor_unref(event->tcp);
MAGIC_CLEAR(event);
g_free(event);
}
static void _epollwatch_free(gpointer data) {
EpollWatch* watch = data;
MAGIC_ASSERT(watch);
descriptor_removeStatusListener(watch->descriptor, watch->listener);
listener_free(watch->listener);
descriptor_unref(watch->descriptor);
MAGIC_CLEAR(watch);
g_free(watch);
}
/* round robin queuing discipline ($ man tc)*/
static Packet* _networkinterface_selectRoundRobin(NetworkInterface* interface, gint* socketHandle) {
Packet* packet = NULL;
while(!packet && !g_queue_is_empty(interface->rrQueue)) {
/* do round robin to get the next packet from the next socket */
Socket* socket = g_queue_pop_head(interface->rrQueue);
packet = socket_pullOutPacket(socket);
*socketHandle = *descriptor_getHandleReference((Descriptor*)socket);
if(socket_peekNextPacket(socket)) {
/* socket has more packets, and is still reffed from before */
g_queue_push_tail(interface->rrQueue, socket);
} else {
/* socket has no more packets, unref it from the sendable queue */
descriptor_unref((Descriptor*) socket);
}
}
return packet;
}
/* first-in-first-out queuing discipline ($ man tc)*/
static Packet* _networkinterface_selectFirstInFirstOut(NetworkInterface* interface, gint* socketHandle) {
/* use packet priority field to select based on application ordering.
* this is really a simplification of prioritizing on timestamps. */
Packet* packet = NULL;
while(!packet && !priorityqueue_isEmpty(interface->fifoQueue)) {
/* do fifo to get the next packet from the next socket */
Socket* socket = priorityqueue_pop(interface->fifoQueue);
packet = socket_pullOutPacket(socket);
*socketHandle = *descriptor_getHandleReference((Descriptor*)socket);
if(socket_peekNextPacket(socket)) {
/* socket has more packets, and is still reffed from before */
priorityqueue_push(interface->fifoQueue, socket);
} else {
/* socket has no more packets, unref it from the sendable queue */
descriptor_unref((Descriptor*) socket);
}
}
return packet;
}