- PING/PONG-Timeout implementiert.
This commit is contained in:
Alexander Barton
parent
24c766fa55
commit
65bdfdf26f
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@ -9,11 +9,14 @@
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* Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
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* der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS.
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*
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* $Id: conn.c,v 1.11 2001/12/25 23:15:16 alex Exp $
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* $Id: conn.c,v 1.12 2001/12/26 03:20:53 alex Exp $
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*
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* connect.h: Verwaltung aller Netz-Verbindungen ("connections")
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*
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* $Log: conn.c,v $
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* Revision 1.12 2001/12/26 03:20:53 alex
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* - PING/PONG-Timeout implementiert.
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*
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* Revision 1.11 2001/12/25 23:15:16 alex
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* - buffer werden nun periodisch geprueft, keine haengenden Clients mehr.
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*
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@ -81,6 +84,7 @@
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#include "ngircd.h"
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#include "client.h"
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#include "conf.h"
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#include "log.h"
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#include "parse.h"
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#include "tool.h"
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@ -105,6 +109,8 @@ typedef struct _Connection
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INT rdatalen; /* Laenge der Daten im Lesepuffer */
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CHAR wbuf[WRITEBUFFER_LEN + 1]; /* Schreibpuffer */
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INT wdatalen; /* Laenge der Daten im Schreibpuffer */
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time_t lastdata; /* Letzte Aktivitaet */
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time_t lastping; /* Letzter PING */
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} CONNECTION;
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@ -115,6 +121,7 @@ LOCAL CONN_ID Socket2Index( INT Sock );
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LOCAL VOID Read_Request( CONN_ID Idx );
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LOCAL BOOLEAN Try_Write( CONN_ID Idx );
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LOCAL VOID Handle_Buffer( CONN_ID Idx );
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LOCAL VOID Check_Connections( VOID );
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LOCAL fd_set My_Listener;
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@ -240,23 +247,14 @@ GLOBAL VOID Conn_Handler( INT Timeout )
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time_t start;
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INT i;
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/* Timeout initialisieren */
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tv.tv_sec = 0;
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tv.tv_usec = 50000;
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start = time( NULL );
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while( time( NULL ) - start < Timeout )
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while(( time( NULL ) - start < Timeout ) && ( ! NGIRCd_Quit ))
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{
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/* noch volle Schreib-Puffer suchen */
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FD_ZERO( &write_sockets );
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for( i = 0; i < MAX_CONNECTIONS; i++ )
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{
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if(( My_Connections[i].sock >= 0 ) && ( My_Connections[i].wdatalen > 0 ))
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{
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/* Socket der Verbindung in Set aufnehmen */
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FD_SET( My_Connections[i].sock, &write_sockets );
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}
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}
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Check_Connections( );
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/* Timeout initialisieren */
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tv.tv_sec = 0;
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tv.tv_usec = 50000;
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/* noch volle Lese-Buffer suchen */
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for( i = 0; i < MAX_CONNECTIONS; i++ )
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@ -268,6 +266,17 @@ GLOBAL VOID Conn_Handler( INT Timeout )
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}
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}
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/* noch volle Schreib-Puffer suchen */
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FD_ZERO( &write_sockets );
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for( i = 0; i < MAX_CONNECTIONS; i++ )
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{
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if(( My_Connections[i].sock >= 0 ) && ( My_Connections[i].wdatalen > 0 ))
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{
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/* Socket der Verbindung in Set aufnehmen */
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FD_SET( My_Connections[i].sock, &write_sockets );
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}
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}
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read_sockets = My_Sockets;
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if( select( My_Max_Fd + 1, &read_sockets, &write_sockets, NULL, &tv ) == -1 )
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{
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@ -509,6 +518,8 @@ LOCAL VOID New_Connection( INT Sock )
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My_Connections[idx].addr = new_addr;
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My_Connections[idx].rdatalen = 0;
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My_Connections[idx].wdatalen = 0;
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My_Connections[idx].lastdata = time( NULL );
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My_Connections[idx].lastping = 0;
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/* Neuen Socket registrieren */
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FD_SET( new_sock, &My_Sockets );
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@ -563,6 +574,7 @@ LOCAL VOID Read_Request( CONN_ID Idx )
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return;
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}
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/* Lesebuffer updaten */
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My_Connections[Idx].rdatalen += len;
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assert( My_Connections[Idx].rdatalen <= READBUFFER_LEN );
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My_Connections[Idx].rbuf[My_Connections[Idx].rdatalen] = '\0';
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@ -577,6 +589,9 @@ LOCAL VOID Read_Request( CONN_ID Idx )
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return;
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}
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/* Timestamp aktualisieren */
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My_Connections[Idx].lastdata = time( NULL );
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Handle_Buffer( Idx );
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} /* Read_Request */
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@ -622,4 +637,36 @@ LOCAL VOID Handle_Buffer( CONN_ID Idx )
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} /* Handle_Buffer */
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LOCAL VOID Check_Connections( VOID )
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{
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/* Pruefen, ob Verbindungen noch "alive" sind */
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INT i;
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for( i = 0; i < MAX_CONNECTIONS; i++ )
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{
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if( My_Connections[i].sock != NONE )
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{
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if( My_Connections[i].lastping > My_Connections[i].lastdata )
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{
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/* es wurde bereits ein PING gesendet */
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if( My_Connections[i].lastping < time( NULL ) - Conf_PONG_Timeout )
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{
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/* Timeout */
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Log( LOG_NOTICE, "Connection %d: Ping timeout." );
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Conn_Close( i, "Ping timeout" );
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}
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}
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else if( My_Connections[i].lastdata < time( NULL ) - Conf_PING_Timeout )
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{
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/* es muss ein PING gesendet werden */
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Log( LOG_DEBUG, "Connection %d: sending PING ...", i );
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My_Connections[i].lastping = time( NULL );
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Conn_WriteStr( i, "PING :%s", This_Server->nick );
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}
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}
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}
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} /* Conn_Check */
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/* -eof- */
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