void udp_close(UDP* udp) {
MAGIC_ASSERT(udp);
node_closeDescriptor(worker_getPrivate()->cached_node, udp->super.super.super.handle);
}
static void channel_close(Channel* channel) {
MAGIC_ASSERT(channel);
descriptor_adjustStatus((Descriptor*)channel, DS_CLOSED, TRUE);
node_closeDescriptor(worker_getPrivate()->cached_node, channel->super.super.handle);
}
static void _tcp_setState(TCP* tcp, enum TCPState state) {
MAGIC_ASSERT(tcp);
tcp->stateLast = tcp->state;
tcp->state = state;
debug("%s <-> %s: moved from TCP state '%s' to '%s'", tcp->super.boundString, tcp->super.peerString,
tcp_stateToAscii(tcp->stateLast), tcp_stateToAscii(tcp->state));
/* some state transitions require us to update the descriptor status */
switch (state) {
case TCPS_LISTEN: {
descriptor_adjustStatus((Descriptor*)tcp, DS_ACTIVE, TRUE);
break;
}
case TCPS_SYNSENT: {
break;
}
case TCPS_SYNRECEIVED: {
break;
}
case TCPS_ESTABLISHED: {
tcp->flags |= TCPF_WAS_ESTABLISHED;
if(tcp->state != tcp->stateLast) {
_tcp_autotune(tcp);
}
descriptor_adjustStatus((Descriptor*)tcp, DS_ACTIVE|DS_WRITABLE, TRUE);
break;
}
case TCPS_CLOSING: {
break;
}
case TCPS_CLOSEWAIT: {
break;
}
case TCPS_CLOSED: {
/* user can no longer use socket */
descriptor_adjustStatus((Descriptor*)tcp, DS_ACTIVE, FALSE);
/*
* servers have to wait for all children to close.
* children need to notify their parents when closing.
*/
if(!tcp->server || g_hash_table_size(tcp->server->children) <= 0) {
if(tcp->child && tcp->child->parent) {
TCP* parent = tcp->child->parent;
/* tell my server to stop accepting packets for me
* this will destroy the child and NULL out tcp->child */
g_hash_table_remove(tcp->child->parent->server->children, (gconstpointer)&(tcp->child->key));
/* if i was the server's last child and its waiting to close, close it */
g_assert(parent->server);
if((parent->state == TCPS_CLOSED) && (g_hash_table_size(parent->server->children) <= 0)) {
/* this will unbind from the network interface and free socket */
node_closeDescriptor(worker_getPrivate()->cached_node, parent->super.super.super.handle);
}
}
/* this will unbind from the network interface and free socket */
node_closeDescriptor(worker_getPrivate()->cached_node, tcp->super.super.super.handle);
}
break;
}
case TCPS_TIMEWAIT: {
/* schedule a close timer self-event to finish out the closing process */
TCPCloseTimerExpiredEvent* event = tcpclosetimerexpired_new(tcp);
worker_scheduleEvent((Event*)event, CONFIG_TCPCLOSETIMER_DELAY, 0);
break;
}
default:
break;
}
}
static void _epoll_close(Epoll* epoll) {
MAGIC_ASSERT(epoll);
descriptor_adjustStatus(&(epoll->super), DS_CLOSED, TRUE);
node_closeDescriptor(worker_getPrivate()->cached_node, epoll->super.handle);
}
