Removed some unused source files

- I don't believe there's a need to keep them if we're not using them.
  If and when we will ever need them again, this commit can be easily
  reverted.

Signed-off-by: Haru <haru@dotalux.com>

1 files changed, 0 insertions, 1061 deletions

diff --git a/src/common/network.c b/src/common/network.c
deleted file mode 100644
index a40cbd602..000000000
--- a/src/common/network.c
+++ /dev/null
@@ -1,1061 +0,0 @@
-//
-// Network Subsystem (previously known as socket system)
-//
-// Author: Florian Wilkemeyer <fw@f-ws.de>
-//
-// Copyright (c) rAthena Project (www.rathena.org) - Licensed under GNU GPL
-// For more information, see LICENCE in the main folder
-//
-//
-//#ifdef HAVE_ACCETP4
-#define _GNU_SOURCE
-//#endif
-
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include <sys/types.h>
-#include <sys/fcntl.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-
-
-#include "../common/cbasetypes.h"
-#include "../common/showmsg.h"
-#include "../common/timer.h"
-#include "../common/evdp.h"
-#include "../common/netbuffer.h"
-
-#include "../common/network.h"
-
-#define ENABLE_IPV6
-#define HAVE_ACCEPT4
-#define EVENTS_PER_CYCLE 10
-#define PARANOID_CHECKS
-
-// Local Vars (settings..)
-static int l_ListenBacklog = 64;
-
-//
-// Global Session Array (previously exported as session[]
-//
-SESSION g_Session[MAXCONN];
-
-
-//
-static bool onSend(int32 fd);
-
-
-#define _network_free_netbuf_async( buf ) add_timer( 0, _network_async_free_netbuf_proc, 0,  (intptr_t)(buf))
-static int _network_async_free_netbuf_proc(int tid, unsigned int tick, int id, intptr_t data){
-	// netbuf is in data
-	netbuffer_put( (netbuf)data );
-
-	return 0;
-}//end: _network_async_free_netbuf_proc()
-
-
-
-void network_init(){
-	SESSION *s;
-	int32 i;
-	
-	memset(g_Session, 0x00, (sizeof(SESSION) * MAXCONN) );
-	
-	for(i = 0; i < MAXCONN; i++){
-		s = &g_Session[i];
-		
-		s->type = NST_FREE;
-		s->disconnect_in_progress = false;
-				
-	}
-	
-	// Initialize the correspondig event dispatcher
-	evdp_init();
-
-	//
-	add_timer_func_list(_network_async_free_netbuf_proc, "_network_async_free_netbuf_proc");
-		
-}//end: network_init()
-
-
-void network_final(){
-
-	// @TODO:
-	// .. disconnect and cleanup everything!
-	
-	evdp_final();
-
-}//end: network_final()
-
-
-void network_do(){
-	struct EVDP_EVENT l_events[EVENTS_PER_CYCLE];
-	register struct EVDP_EVENT *ev;
-	register int n, nfds;
-	register SESSION *s;
-	
-	nfds = evdp_wait( l_events,	EVENTS_PER_CYCLE, 1000); // @TODO: timer_getnext()
-	
-	for(n = 0; n < nfds; n++){
-		ev = &l_events[n];
-		s = &g_Session[ ev->fd ];
-		
-		if(ev->events & EVDP_EVENT_HUP){
-			network_disconnect( ev->fd );	
-			continue; // no further event processing.
-		}// endif vent is HUP (disconnect)
-		
-		
-		if(ev->events & EVDP_EVENT_IN){
-			
-			if(s->onRecv != NULL){
-				if( false == s->onRecv(ev->fd) ){
-					network_disconnect(ev->fd);
-					continue; // ..
-				}
-			}else{
-				ShowError("network_do: fd #%u has no onRecv proc set. - disconnecting\n", ev->fd);
-				network_disconnect(ev->fd);
-				continue;
-			}	
-						
-		}// endif event is IN (recv)
-		
-		
-		if(ev->events & EVDP_EVENT_OUT){
-			if(s->onSend != NULL){
-				if( false == s->onSend(ev->fd) ){
-					network_disconnect(ev->fd);
-					continue;
-				}
-			}else{
-				ShowError("network_do: fd #%u has no onSend proc set. - disconnecting\n", ev->fd);
-				network_disconnect(ev->fd);
-				continue;
-			}
-		}// endif event is OUT (send)
-		
-	}//endfor
-			
-}//end: network_do()
-
-
-static bool _setnonblock(int32 fd){
-	int flags = fcntl(fd, F_GETFL, 0);
-	if(fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0)
-		return false;
-
-	return true;
-}//end: _setnonblock()
-
-
-static bool _network_accept(int32 fd){
-	SESSION *listener = &g_Session[fd];
-	SESSION *s; 
-	union{
-		struct sockaddr_in v4;
-#ifdef ENABLE_IPV6
-		struct sockaddr_in6 v6;
-#endif
-	} _addr;
-	int newfd;
-	socklen_t addrlen;
-	struct sockaddr *addr;
-
-	// Accept until OS returns - nothing to accept anymore
-	// - this is required due to our EVDP abstraction. (which handles on listening sockets similar to epoll's EPOLLET flag.)
-	while(1){
-#ifdef ENABLE_IPV6
-		if(listener->v6 == true){
-			addrlen = sizeof(_addr.v6);
-			addr = (struct sockaddr*)&_addr.v6;
-		}else{
-#endif
-			addrlen = sizeof(_addr.v4);
-			addr = (struct sockaddr*)&_addr.v4;		
-#ifdef ENABLE_IPV6
-		}
-#endif
-
-#ifdef HAVE_ACCEPT4
-		newfd = accept4(fd, addr, &addrlen, SOCK_NONBLOCK);
-#else
-		newfd = accept(fd, addr, &addrlen);
-#endif
-
-		if(newfd == -1){
-			if(errno == EAGAIN || errno == EWOULDBLOCK)
-				break; // this is fully valid & whished., se explaination on top of while(1)
-			
-			// Otherwis .. we have serious problems :( seems tahat our listner has gone away..
-			// @TODO handle this .. 
-			ShowError("_network_accept: accept() returned error. closing listener. (errno: %u / %s)\n", errno, strerror(errno));
-
-			return false; // will call disconnect after return.
-			//break;
-		}
-
-#ifndef HAVE_ACCEPT4 // no accept4 means, we have to set nonblock by ourself. ..
-		if(_setnonblock(newfd) == false){
-			ShowError("_network_accept: failed to set newly accepted connection nonblocking (errno: %u / %s). - disconnecting.\n", errno, strerror(errno));
-			close(newfd);
-			continue; 
-		}
-#endif
-
-		// Check connection limits.
-		if(newfd >= MAXCONN){
-			ShowError("_network_accept: failed to accept connection - MAXCONN (%u) exceeded.\n", MAXCONN);
-			close(newfd);
-			continue; // we have to loop over the events (and disconnect them too ..) but otherwise we would leak event notifications.
-		}
-
-
-		// Create new Session.
-		s = &g_Session[newfd];
-		s->type = NST_CLIENT;
-		
-		// The new connection inherits listenr's handlers.
-		s->onDisconnect = listener->onDisconnect;
-		s->onConnect = listener->onConnect; // maybe useless but .. fear the future .. :~ 
-	
-		// Register the new connection @ EVDP
-		if( evdp_addclient(newfd, &s->evdp_data) == false){
-			ShowError("_network_accept: failed to accept connection - event subsystem returned an error.\n");
-			close(newfd);
-			s->type = NST_FREE;
-		}
-		
-		// Call the onConnect handler on the listener.
-		if( listener->onConnect(newfd) == false ){
-			// Resfused by onConnect handler..
-			evdp_remove(newfd, &s->evdp_data);
-			
-			close(newfd);
-			s->type = NST_FREE;
-			
-			s->data = NULL; // be on the safe side ~ !
-			continue;
-		}
-		
-		
-	}
-
-	return true;
-}//end: _network_accept()
-
-
-void network_disconnect(int32 fd){
-	SESSION *s = &g_Session[fd];
-	netbuf b, bn;
-	
-	// Prevent recursive calls 
-	// by wrong implemented on disconnect handlers.. and such..
-	if(s->disconnect_in_progress == true)
-		return; 	
-		
-	s->disconnect_in_progress = true;
-	
-	
-	// Disconnect Todo:
-	//	- Call onDisconnect Handler
-	//	- Release all Assigned buffers.
-	//	- remove from event system (notifications)
-	//	- cleanup session structure
-	//	- close connection. 
-	//
-	
-	if(s->onDisconnect != NULL && 
-		s->type != NST_LISTENER){
-		
-		s->onDisconnect( fd );
-	}
-
-	// Read Buffer 
-	if(s->read.buf != NULL){
-		netbuffer_put(s->read.buf);
-		s->read.buf = NULL;
-	}
-
-	// Write Buffer(s)
-	b = s->write.buf;
-	while(1){
-		if(b == NULL) break;
-
-		bn = b->next;
-		
-		netbuffer_put(b);
-		
-		b = bn;
-	}
-	s->write.buf = NULL;
-	s->write.buf_last = NULL;
-	
-	s->write.n_outstanding = 0;
-	s->write.max_outstanding = 0;
-	
-		
-	// Remove from event system.
-	evdp_remove(fd, &s->evdp_data);
-	
-	// Cleanup Session Structure.
-	s->type = NST_FREE;
-	s->data = NULL; // no application level data assigned
-	s->disconnect_in_progress = false;
-
-
-	// Close connection	
-	close(fd);	
-	
-}//end: network_disconnect()
-
-
-int32 network_addlistener(bool v6,  const char *addr,  uint16 port){
-	SESSION *s;
-	int optval, fd;
-
-#if !defined(ENABLE_IPV6)
-	if(v6 == true){
-		 ShowError("network_addlistener(%c, '%s', %u):  this release has no IPV6 support.\n",  (v6==true?'t':'f'),  addr, port);
-		 return -1;
-	}
-#endif
-
-
-#ifdef ENABLE_IPV6
-	if(v6 == true)
-		fd = socket(AF_INET6, SOCK_STREAM, 0);
-	else
-#endif
-		fd = socket(AF_INET, SOCK_STREAM, 0);
-
-	// Error?
-	if(fd == -1){
-		ShowError("network_addlistener(%c, '%s', %u):  socket() failed (errno: %u / %s)\n",  (v6==true?'t':'f'),  addr, port,    errno, strerror(errno));
-		return -1;
-	}
-	
-	// Too many connections?
-	if(fd >= MAXCONN){
-		ShowError("network_addlistener(%c, '%s', %u):  cannot create listener, exceeds more than supported connections (%u).\n", (v6==true?'t':'f'),  addr, port, MAXCONN);
-		close(fd);
-		return -1;
-	}
-	
-	
-	s = &g_Session[fd];
-	if(s->type != NST_FREE){ // additional checks.. :)
-			ShowError("network_addlistener(%c, '%s', %u): failed, got fd #%u which is already in use in local session table?!\n", (v6==true?'t':'f'),  addr, port, fd);
-			close(fd);
-			return -1;
-	}
-	
-	
-	// Fill ip addr structs
-#ifdef ENABLE_IPV6
-	if(v6 == true){
-		memset(&s->addr.v6, 0x00, sizeof(s->addr.v6));
-		s->addr.v6.sin6_family = AF_INET6;
-		s->addr.v6.sin6_port = htons(port);
-		if(inet_pton(AF_INET6, addr, &s->addr.v6.sin6_addr) != 1){
-			ShowError("network_addlistener(%c, '%s', %u): failed to parse the given IPV6 address.\n",  (v6==true?'t':'f'),  addr, port);
-			close(fd);
-			return -1;
-		}
-		
-	}else{
-#endif
-		memset(&s->addr.v4, 0x00, sizeof(s->addr.v4));
-		s->addr.v4.sin_family = AF_INET;
-		s->addr.v4.sin_port = htons(port);
-		s->addr.v4.sin_addr.s_addr = inet_addr(addr);
-#ifdef ENABLE_IPV6
-	}
-#endif
-		 
-
-	// if OS has support for SO_REUSEADDR, apply the flag
-	// so the address could be used when there're still time_wait sockets outstanding from previous application run.
-#ifdef SO_REUSEADDR
-	optval=1;
-	setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
-#endif
-
-	// Bind
-#ifdef ENABLE_IPV6
-	if(v6 == true){
-		if( bind(fd, (struct sockaddr*)&s->addr.v6,  sizeof(s->addr.v6)) == -1) {
-			ShowError("network_addlistener(%c, '%s', %u): bind failed (errno: %u / %s)\n",  (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-			close(fd);
-			return -1;
-		}
-	}else{
-#endif
-		if( bind(fd, (struct sockaddr*)&s->addr.v4,  sizeof(s->addr.v4)) == -1) {
-            ShowError("network_addlistener(%c, '%s', %u): bind failed (errno: %u / %s)\n",  (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-			close(fd);
-			return -1;
-		}		
-#ifdef ENABLE_IPV6
-	}
-#endif
-
-	if( listen(fd, l_ListenBacklog) == -1){
-		ShowError("network_addlistener(%c, '%s', %u): listen failed (errno: %u / %s)\n",  (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-		close(fd);
-		return -1;
-	}
-		
-
-	// Set to nonblock!
-	if(_setnonblock(fd) == false){
-		ShowError("network_addlistener(%c, '%s', %u): cannot set to nonblock (errno: %u / %s)\n",  (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-		close(fd);
-		return -1;
-	}	
-
-
-	// Rgister @ evdp.
-	if( evdp_addlistener(fd, &s->evdp_data) != true){
-		ShowError("network_addlistener(%c, '%s', %u): eventdispatcher subsystem returned an error.\n",  (v6==true?'t':'f'),  addr, port);
-		close(fd);
-		return -1;
-	}
-	
-	
-	// Apply flags on Session array for this conneciton.
-	if(v6 == true)	s->v6 = true;
-	else			s->v6 = false;
-	
-	s->type = NST_LISTENER;
-	s->onRecv = _network_accept;
-
-	ShowStatus("Added Listener on '%s':%u\n", addr, port, (v6==true ? "(ipv6)":"(ipv4)") );
-
-	return fd;
-}//end: network_addlistener()
-
-
-static bool _network_connect_establishedHandler(int32 fd){
-	register SESSION *s = &g_Session[fd];
-	int val;
-	socklen_t val_len;
-	
-	if(s->type == NST_FREE)
-		return true;	// due to multiple non coalesced event notifications
-						// this can happen .. when a previous handled event has already disconnected the connection
-						// within the same cycle..
-	
-	val = -1;
-	val_len = sizeof(val);
-	getsockopt(fd, SOL_SOCKET, SO_ERROR, &val, &val_len);
-	
-	if(val != 0){
-		// :( .. cleanup session..
-		s->type = NST_FREE;
-		s->onSend = NULL;
-		s->onConnect = NULL;
-		s->onDisconnect = NULL;
-
-		evdp_remove(fd, &s->evdp_data);
-		close(fd);
-		
-		return true; // we CANT return false,
-					 // becuase the normal disconnect procedure would execute the ondisconnect handler, which we dont want .. in this case.
-	}else{
-		// ok 
-		if(s->onConnect(fd) == false) {
-			// onConnect handler has refused the connection .. 
-			// cleanup .. and ok
-			s->type = NST_FREE;
-			s->onSend = NULL;
-			s->onConnect = NULL;
-			s->onDisconnect = NULL;
-			
-			evdp_remove(fd, &s->evdp_data);
-			close(fd);
-			
-			return true; // we dnot want the ondisconnect handler to be executed, so its okay to handle this by ourself.
-		}
-		
-		// connection established ! 
-		// 
-		if( evdp_outgoingconnection_established(fd, &s->evdp_data) == false ){
-			return false; // we want the normal disconnect procedure.. with call to ondisconnect handler.
-		}
-		
-		s->onSend = NULL;
-		
-		ShowStatus("#%u connection successfull!\n", fd);	
-	}
-
-	return true;	
-}//end: _network_connect_establishedHandler()
-
-
-int32 network_connect(bool v6,
-                        const char *addr,
-                        uint16 port,
-                        const char *from_addr,
-                        uint16 from_port,
-                        bool (*onConnectionEstablishedHandler)(int32 fd),
-                        void (*onConnectionLooseHandler)(int32 fd)
-){
-	register SESSION *s;
-	int32 fd, optval, ret;
-	struct sockaddr_in ip4;
-#ifdef ENABLE_IPV6
-	struct sockaddr_in6 ip6;
-#endif
-
-#ifdef ENABLE_IPV6
-	if(v6 == true)
-		fd = socket(AF_INET6, SOCK_STREAM, 0);
-	else
-#endif
-		fd = socket(AF_INET, SOCK_STREAM, 0);
-
-#ifndef ENABLE_IPV6
-	// check..
-	if(v6 == true){
-		ShowError("network_connect(%c, '%s', %u...): tried to create an ipv6 connection, IPV6 is not supported in this release.\n", (v6==true?'t':'f'),  addr, port);
-		return -1;
-	}
-#endif
-
-	// check connection limits.
-	if(fd >= MAXCONN){
-		ShowError("network_connect(%c, '%s', %u...): cannot create new connection, exceeeds more than supported connections (%u)\n", (v6==true?'t':'f'),  addr, port );
-		close(fd);
-		return -1;
-	}
-
-	
-	// Originating IP/Port pair given ?
-	if(from_addr != NULL && *from_addr != 0){
-		//.. 
-		#ifdef SO_REUSEADDR
-	    optval=1;
-	    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
-		#endif
-		
-		#ifdef ENABLE_IPV6
-		if(v6 == true){
-			memset(&ip6, 0x00, sizeof(ip6));
-			ip6.sin6_family = AF_INET6;
-			ip6.sin6_port = htons(from_port);
-			
-			if(inet_pton(AF_INET6, from_addr, &ip6.sin6_addr) != 1){
-				ShowError("network_connect(%c, '%s', %u...): cannot parse originating (from) IPV6 address (errno: %u / %s)\n", (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-				close(fd);
-				return -1;
- 			}
-		
- 			ret = bind(fd, (struct sockaddr*)&ip6, sizeof(ip6));
-		}else{
-		#endif
-			memset(&ip4, 0x00, sizeof(ip4));
-			
-			ip4.sin_family = AF_INET;
-			ip4.sin_port = htons(from_port);
-			ip4.sin_addr.s_addr = inet_addr(from_addr);
-			ret = bind(fd, (struct sockaddr*)&ip4, sizeof(ip4));
-		#ifdef ENABLE_IPV6
-		}
-		#endif
-		
-	}
-	
-
-	// Set non block
-	if(_setnonblock(fd) == false){
-		ShowError("network_connect(%c, '%s', %u...): cannot set socket to nonblocking (errno: %u / %s)\n", (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-		close(fd);
-		return -1;
-	}
-
-
-	// Create ip addr block to connect to .. 
-#ifdef ENABLE_IPV6
-	if(v6 == true){
-		memset(&ip6, 0x00, sizeof(ip6));
-		ip6.sin6_family = AF_INET6;
-		ip6.sin6_port = htons(port);
-		
-		if(inet_pton(AF_INET6, addr, &ip6.sin6_addr) != 1){
-			 ShowError("network_connect(%c, '%s', %u...): cannot parse destination IPV6 address (errno: %u / %s)\n", (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-			 close(fd);
-			 return -1;
-		}
-	
-	}else{
-#endif
-	memset(&ip4, 0x00, sizeof(ip4));
-	
-	ip4.sin_family = AF_INET;
-	ip4.sin_port = htons(port);
-	ip4.sin_addr.s_addr = inet_addr(addr);	
-#ifdef ENABLE_IPV6
-	}
-#endif
-
-
-	// Assign Session..
-	s = &g_Session[fd];
-	s->type = NST_OUTGOING;
-	s->v6 = v6;
-	s->onConnect = onConnectionEstablishedHandler;
-	s->onDisconnect = onConnectionLooseHandler;
-	s->onRecv = NULL;
-	s->onSend = _network_connect_establishedHandler;
-#ifdef ENABLE_IPV6
-	if(v6 == true)
-		memcpy(&s->addr.v6, &ip6, sizeof(ip6));
-	else
-#endif
-		memcpy(&s->addr.v4, &ip4, sizeof(ip4));
-	
-	// Register @ EVDP. as outgoing (see doc of the function)
-	if(evdp_addconnecting(fd, &s->evdp_data) == false){
-		ShowError("network_connect(%c, '%s', %u...): eventdispatcher subsystem returned an error.\n", (v6==true?'t':'f'),  addr, port);
-		
-		// cleanup session x.x.. 
-		s->type = NST_FREE;
-		s->onConnect = NULL;
-		s->onDisconnect = NULL;
-		s->onSend = NULL;
-		
-		// close, return error code.
-		close(fd);
-		return -1;
-	}
-
-
-#ifdef ENABLE_IPV6
-	if(v6 == true)
-		ret = connect(fd, (struct sockaddr*)&ip6, sizeof(ip6));
-	else
-#endif
-		ret = connect(fd, (struct sockaddr*)&ip4, sizeof(ip4));
-
-
-	// 
-	if(ret != 0 && errno != EINPROGRESS){
-		ShowWarning("network_connect(%c, '%s', %u...): connection failed (errno: %u / %s)\n", (v6==true?'t':'f'),  addr, port, errno, strerror(errno));
-		
-		// Cleanup session ..
-		s->type = NST_FREE;
-		s->onConnect = NULL;
-		s->onDisconnect = NULL;
-		s->onSend = NULL;
-		
-		// .. remove from evdp and close fd.	
-		evdp_remove(fd, &s->evdp_data);
-		close(fd);
-		return -1;
-	}
-
-
-	// ! The Info Message :~D
-	ShowStatus("network_connect fd#%u (%s:%u) in progress.. \n", fd, addr, port);
-
-return fd;	
-}//end: network_connect()
-
-
-static bool _onSend(int32 fd){
-	register SESSION *s = &g_Session[fd];
-	register netbuf buf, buf_next;
-	register uint32 szNeeded;
-	register int wLen;
-
-	if(s->type == NST_FREE)
-		return true; 	// Possible due to multipl non coalsced event notifications 
-						// so onSend gets called after disconnect caused by an previous vent. 
-						// we can ignore the call to onSend, then. 
-	
-	buf = s->write.buf;
-	while(1){
-		if(buf == NULL)
-			break;
-		
-		buf_next = buf->next;
-		
-		
-		szNeeded = (buf->dataLen - s->write.dataPos);	// using th session-local .dataPos member, due to shared write buffer support.
-		
-		// try to write.
-		wLen = write(fd, &buf->buf[s->write.dataPos],  szNeeded);
-		if(wLen == 0){
-			return false; // eof.
-		}else if(wLen == -1){
-			if(errno == EAGAIN || errno == EWOULDBLOCK)
-				return true; // dont disconnect / try again later.
-			
-			// all other errors. . 
-			return false;
-		}
-		
-		// Wrote data.. =>
-		szNeeded -= wLen;
-		if(szNeeded > 0){
-			// still data left .. 
-			// 
-			s->write.dataPos += wLen; // fix offset.
-			return true;
-		}else{
-			// this buffer has been written successfully
-			// could be returned to pool.
-			netbuffer_put(buf);
-			s->write.n_outstanding--; // When threadsafe -> Interlocked here.
-			s->write.dataPos = 0; 
-		}
-			
-			
-		buf = buf_next;
-	}
-
-	// okay,
-	// reaching this part means:
-	// while interrupted by break - 
-	// which means all buffers are written, nothing left
-	//
-	
-	s->write.buf_last = NULL;
-	s->write.buf = NULL;
-	s->write.n_outstanding = 0;
-	s->write.dataPos = 0;
-	
-	// Remove from event dispatcher (write notification)
-	//
-	evdp_writable_remove(fd, &s->evdp_data);
-			
-	return true;	
-}//end: _onSend()
-
-
-static bool _onRORecv(int32 fd){
-	register SESSION *s = &g_Session[fd];
-	register uint32	szNeeded;
-	register char *p;
-	register int rLen;
-	
-	if(s->type == NST_FREE)
-		return true;	// Possible due to multiple non coalesced events by evdp.
-						//  simply ignore this call returning positive result. 
-	
-	// Initialize p and szNeeded depending on change
-	// 
-	switch(s->read.state){
-		case NRS_WAITOP:
-			szNeeded = s->read.head_left;
-			p = ((char*)&s->read.head[0]) + (2-szNeeded);
-		break;
-
-		case NRS_WAITLEN:
-			szNeeded = s->read.head_left;
-			p = ((char*)&s->read.head[1]) + (2-szNeeded);
-		break;
-		
-		case NRS_WAITDATA:{
-			register netbuf buf = s->read.buf;
-			
-			szNeeded = (buf->dataLen - buf->dataPos);
-			p = (char*)&buf->buf[ buf->dataPos ];
-		}
-		break;	
-		
-		default: 
-			// .. the impossible gets possible .. 
-			ShowError("_onRORecv: fd #%u has unknown read.state (%d) - disconnecting\n", fd, s->read.state);
-			return false;
-		break;
-	}
-	
-	
-	// 
-	
-	rLen = read(fd, p, szNeeded);
-	if(rLen == 0){
-		// eof..
-		return false;
-	}else if(rLen == -1){
-		
-		if(errno == EAGAIN || errno == EWOULDBLOCK){
-			// try again later .. (this case shouldnt happen, because we're event trigered.. but .. sometimes it happens :)
-			return true;
-		}
-		
-		// an additional interesting case would be 
-		// EINTR, this 'could' be handled .. but:
-		//	posix says that its possible that data gets currupted during irq
-		//	or data gor read and not reported.., so we'd have a data loss..
-		//	(which shouldnt happen with stream based protocols such as tcp)
-		// its better to disonnect the client in that case.
-		
-		return false;
-	}
-	
-	//
-	// Got Data:
-	//  next action also depends on current state .. 
-	// 
-	szNeeded -= rLen;
-	switch(s->read.state){
-		case NRS_WAITOP:
-
-			if(szNeeded > 0){
-				// still data missing .. 
-				s->read.head_left = szNeeded;
-				return true; // wait for completion.
-			}else{
-				// complete .. 
-				//  next state depends on packet type.
-				
-				s->read.head[1] = ((uint16*)s->netparser_data)[ s->read.head[0] ];  // store lenght of packet by opcode head[0] to head[1]
-				
-				if(s->read.head[1] == ROPACKET_UNKNOWN){
-					// unknown packet - disconnect
-					ShowWarning("_onRORecv: fd #%u got unlnown packet 0x%04x - disconnecting.\n", fd, s->read.head[0]);
-					return false;
-				}
-				else if(s->read.head[1] == ROPACKET_DYNLEN){
-					// dynamic length
-					// next state: requrie len.
-					s->read.state = NRS_WAITLEN;
-					s->read.head_left = 2;
-					return true; //
-				}
-				else if(s->read.head[1] == 2){ 
-					// packet has no data (only opcode)
-					register netbuf buf = netbuffer_get(2); // :D whoohoo its giant! 
-					
-					NBUFW(buf, 0) = s->read.head[0]; // store opcode @ packet begin.
-					buf->dataPos = 2;
-					buf->dataLen = 2;
-					buf->next = NULL;
-					
-					// Back to initial state -> Need opcode.
-					s->read.state = NRS_WAITOP;
-					s->read.head_left = 2;
-					s->read.buf = NULL;
-					
-					// Call completion routine here.					
-					s->onPacketComplete(fd,  s->read.head[0],  2,  buf); 
-					
-					return true; // done :)
-				}
-				else{
-					// paket needs .. data ..
-					register netbuf buf = netbuffer_get( s->read.head[1] );
-					
-					NBUFW(buf, 0) = s->read.head[0]; // store opcode @ packet begin.
-					buf->dataPos = 2;
-					buf->dataLen = s->read.head[1];
-					buf->next = NULL;
-					
-					// attach buffer.
-					s->read.buf = buf;
-					
-					// set state:
-					s->read.state = NRS_WAITDATA;	
-					
-					return true;
-				}
-				
-			}//endif: szNeeded > 0 (opcode read completed?)
-			
-		break;
-		
-		
-		case NRS_WAITLEN:
-			
-			if(szNeeded > 0){
-				// incomplete .. 
-				s->read.head_left = szNeeded;
-				return true;
-			}else{
-				
-				if(s->read.head[1] == 4){
-					// packet has no data (only opcode + length)
-					register netbuf buf = netbuffer_get( 4 );
-					
-					NBUFL(buf, 0) = *((uint32*)&s->read.head[0]); // copy  Opcode + length to netbuffer using MOVL	
-					buf->dataPos = 4;
-					buf->dataLen = 4;
-					buf->next = NULL;
-					
-					// set initial state (need opcode)
-					s->read.state = NRS_WAITOP;
-					s->read.head_left = 2; 
-					s->read.buf = NULL;
-					
-					// call completion routine.
-					s->onPacketComplete(fd,  s->read.head[0],  4,  buf);
-
-					return true;					
-				}
-				else if(s->read.head[1] < 4){
-					// invalid header.
-					ShowWarning("_onRORecv: fd #%u invalid header - got packet 0x%04x, reported length < 4 - INVALID - disconnecting\n", fd, s->read.head[0]);
-					return false;
-				}
-				else{
-					// Data needed
-					// next state -> waitdata!
-					register netbuf buf = netbuffer_get( s->read.head[1] );
-					
-					NBUFL(buf, 0) = *((uint32*)&s->read.head[0]); // copy  Opcode + length to netbuffer using MOVL
-					buf->dataPos = 4;
-					buf->dataLen = s->read.head[1];
-					buf->next = NULL;
-					
-					// attach to session:
-					s->read.buf = buf;
-					s->read.state = NRS_WAITDATA;
-					
-					return true;
-				}
-				
-			}//endif: szNeeded > 0 (length read complete?)
-			
-		break;
-		
-		
-		case NRS_WAITDATA:
-
-			if(szNeeded == 0){
-				// Packet finished!
-				// compltion.
-				register netbuf buf = s->read.buf;
-				
-				// set initial state.
-				s->read.state = NRS_WAITOP;
-				s->read.head_left = 2;
-				s->read.buf = NULL;
-				
-				// Call completion routine.
-				s->onPacketComplete(fd,  NBUFW(buf, 0),  buf->dataLen,  buf);
-				
-				return true;
-			}else{
-				// still data needed 
-				s->read.buf->dataPos += rLen; 
-				
-				return true;				
-			}
-		break;
-		
-		
-		//
-		default:
-			ShowError("_onRORecv: fd #%u has unknown read.state (%d) [2] - disconnecting\n", fd, s->read.state);
-			return false;
-		break;
-	}
-	
-		
-	return false;
-}//end: _onRORecv()
-
-
-void network_send(int32 fd,  netbuf buf){
-	register SESSION *s = &g_Session[fd];
-	
-#ifdef PARANOID_CHECKS
-	if(fd >= MAXCONN){
-		ShowError("network_send: tried to attach buffer to connection idientifer #%u which is out of bounds.\n", fd);
-		_network_free_netbuf_async(buf);
-		return;
-	}
-#endif
-
-
-	if(s->type == NST_FREE)
-		return;
-	
-	// Check Max Outstanding buffers limit.
-	if( (s->write.max_outstanding > 0)	&&
-		(s->write.n_outstanding >= s->write.max_outstanding) ){
-		
-		ShowWarning("network_send: fd #%u max Outstanding buffers exceeded. - disconnecting.\n", fd);
-		network_disconnect(fd);
-		//
-		_network_free_netbuf_async(buf);
-		return;
-	}
-	
-
-	// Attach to the end:
-	buf->next = NULL;
-	if(s->write.buf_last != NULL){
-		s->write.buf_last->next = buf; 
-		s->write.buf_last = buf;
-
-	}else{
-		// currently no buffer attached.
-		s->write.buf = s->write.buf_last = buf;
-		
-		// register @ evdp for writable notification.
-		evdp_writable_add(fd, &s->evdp_data); // 
-	}
-	
-	
-	//
-	s->write.n_outstanding++;
-	
-}//end: network_send()
-
-
-void network_parser_set_ro(int32 fd,
-							int16 *packetlentable,
-							void (*onPacketCompleteProc)(int32 fd,  uint16 op,  uint16 len,  netbuf buf) 
-							){
-	register SESSION *s = &g_Session[fd];
-	register netbuf b, nb; // used for potential free attached buffers.
-	
-	if(s->type == NST_FREE)
-		return;
-	
-	s->onPacketComplete = onPacketCompleteProc;
-	
-	s->onRecv = _onRORecv; // ..
-	s->onSend = _onSend; // Using the normal generic netbuf based send function.
-		
-	s->netparser_data = packetlentable;
-	
-	// Initial State -> Need Packet OPCode.
-	s->read.state = NRS_WAITOP;
-	s->read.head_left = 2; 
-
-	
-	// Detach (if..) all buffers.
-	if(s->read.buf != NULL){
-		_network_free_netbuf_async(s->read.buf); //
-		s->read.buf = NULL;	
-	}
-	
-	if(s->write.buf != NULL){
-		b = s->write.buf;
-		while(1){
-			nb = b->next;
-			
-			_network_free_netbuf_async(b);
-			
-			b = nb;
-		}
-	
-		s->write.buf = NULL;
-		s->write.buf_last = NULL;
-		s->write.n_outstanding = 0;
-	}
-	
-	// not changing any limits on outstanding ..
-	//
-	
-}//end: network_parser_set_ro()