commit 9f067a059d9f64c68a73a2f7fbf5308ee342fe2a
from: Alexander Barton <alex@barton.de>
date: Wed Nov 12 00:26:04 2008 UTC

Connection counter: count outgoing connections as well.

This patch lets ngIRCd count outgoing connections as well as incoming
connections (up to now only outgoing connections have been counted). This
change is required because the Conn_Close() function doesn't know whether
it closes an outgoing connection or not and therefore would decrement the
counter below zero when an outgoing connection existed -- which would
trigger an assert() call ...

Please note that this patch changes the (so far undocumented but now fixed)
behaviour of the "MaxConnections" configuration option to account the sum
of the in- and outbound connections!

commit - 5a91d621009d6a0f3b8e5ff054aa6ae7e3195191
commit + 9f067a059d9f64c68a73a2f7fbf5308ee342fe2a
blob - 665edae72dbbb76cbfece09cd004e7749bc426ef
blob + 459d51d4e1765054735c97430939f4178e8df61f
--- doc/sample-ngircd.conf
+++ doc/sample-ngircd.conf
@@ -126,8 +126,8 @@
 	;ConnectIPv6 = yes
 	;ConnectIPv4 = yes
 
-	# Maximum number of simultaneous connection the server is allowed
-	# to accept (0: unlimited):
+	# Maximum number of simultaneous in- and outbound connections the
+	# server is allowed to accept (0: unlimited):
 	;MaxConnections = 0
 
 	# Maximum number of simultaneous connections from a single IP address
blob - cdf4a4256df61406bede865a7fd749194b8e284e
blob + 14baf2090b6f3ee6f05ebba8ef386306efaa9f8c
--- man/ngircd.conf.5.tmpl
+++ man/ngircd.conf.5.tmpl
@@ -193,8 +193,8 @@ Set this to no if you do not want ngircd to connect to
 Default: Yes.
 .TP
 \fBMaxConnections\fR
-Maximum number of simultaneous connection the server is allowed to accept
-(0: unlimited). Default: 0.
+Maximum number of simultaneous in- and outbound connections the server is
+allowed to accept (0: unlimited). Default: 0.
 .TP
 \fBMaxConnectionsIP\fR
 Maximum number of simultaneous connections from a single IP address that
blob - 0b21d3a12b66e27fdfd392f20b235e19ba6a9d7d
blob + f0a97f9cdddec0437f883d7f0716c24f4d6b9286
--- src/ngircd/conn.c
+++ src/ngircd/conn.c
@@ -116,6 +116,7 @@ cb_listen(int sock, short irrelevant)
 	(void) irrelevant;
 	if (New_Connection( sock ) >= 0)
 		NumConnections++;
+	LogDebug("Total number of connections now %ld.", NumConnections);
 }
 
 
@@ -130,6 +131,7 @@ cb_listen_ssl(int sock, short irrelevant)
 		return;
 
 	NumConnections++;
+	LogDebug("Total number of connections now %ld.", NumConnections);
 	io_event_setcb(My_Connections[fd].sock, cb_clientserver_ssl);
 }
 #endif
@@ -1035,7 +1037,8 @@ Conn_Close( CONN_ID Idx, char *LogMsg, char *FwdMsg, b
 	assert(NumConnections > 0);
 	if (NumConnections)
 		NumConnections--;
-	LogDebug("Shutdown of connection %d completed", Idx );
+	LogDebug("Shutdown of connection %d completed, %ld connection%s left.",
+		 Idx, NumConnections, NumConnections != 1 ? "s" : "");
 } /* Conn_Close */
 
 
@@ -1717,8 +1720,9 @@ New_Server( int Server , ng_ipaddr_t *dest)
 		Conf_Server[Server].conn_id = NONE;
 	}
 #endif
-	LogDebug("Registered new connection %d on socket %d.",
-				new_sock, My_Connections[new_sock].sock );
+	NumConnections++;
+	LogDebug("Registered new connection %d on socket %d (%ld in total).",
+		 new_sock, My_Connections[new_sock].sock, NumConnections);
 	Conn_OPTION_ADD( &My_Connections[new_sock], CONN_ISCONNECTING );
 } /* New_Server */