p2p的例子（C语言编写，LINUX可执行程序+运行SH）

#!/bin/bash #set -x # variables TERMINAL=xterm # TERMOPTION BASE=2000 # STARTI=0 # VALGRIND="valgrind --leak-check=full --show-reachable=yes" VALGRIND="" VERBOSE=6 if [ "$BASE" == "" ] ; then export BASE=2000 fi if [ "$STARTI" == "" ] ; then export STARTI=0 fi if [ "$TERMINAL" == "" ] ; then export TERMINAL=xterm fi usage() { cat <<EOF start_server c [n] : start a client [to server n] d [n] : start [n] detached server [n] : if [n] > 1 then connect server(i) with server(i-1) x [n] : start [n] server in a xterm [n] : if [n] > 1 then connect server(i) with server(i-1) f [n] : find pid of server [n] g [n] : start gdb and connect to it to server [n] k : kill all servers BASE=x start_server [] default BASE=0 EOF } server_name() { echo p2p_$1 } base() { echo `expr $BASE + $1` } port_ui() { echo `base $1`1 } port_tcp() { echo `base $1`2 } port_udp() { echo `base $1`3 } start_line() { NUM=$1 DIR=$2 DST=$3 OTHER=$4 echo ${VALGRIND} ${DIR}/p2p_node \ --dir=${DST} \ --listening-ip=127.0.0.1 \ --server-name=`server_name ${NUM}` \ --ui-tcp-port=`port_ui ${NUM}` \ --p2p-tcp-port=`port_tcp ${NUM}` \ --p2p-udp-port=`port_udp ${NUM}` \ --verbose=${VERBOSE} \ ${OTHER} } find_server_pid() { SERVER_NAME=`server_name $1` echo `ps aux | grep ${SERVER_NAME} | egrep -v 'xterm|bash|grep' | cut -d ' ' -f 2` } start_serv() { MODE=$1 NUM=$2 DIR=$3 OTHER=$4 TMPDIR=/tmp DST=${TMPDIR}/p2p_dir_${NUM} #creation du repertoire mkdir -p ${DST} touch ${DST}/p2p_${NUM} echo "file from node ${NUM}" > ${DST}/p2p_${NUM} echo -n "starting node ${NUM} : " case "${MODE}" in "x" ) CMDLINE="`start_line ${NUM} ${DIR} ${DST} ${OTHER}`" # `start_line ${NUM} ${DIR} ${DST} ${OTHER}` echo ${CMDLINE} #${CMDLINE} ${TERMINAL} -geometry 99x24 -title Server_T${NUM} -e "${CMDLINE} ; read " & ;; "d" ) `start_line ${NUM} ${DIR} ${DST} ${OTHER}` & ;; * ) usage exit 1 ;; esac sleep 1 echo pid=`find_server_pid ${NUM}` } if [ $# -lt 1 ] ; then usage exit 1 else case "$1" in "c" )#client if [ $# -gt 1 ] ; then NUM=$2 ${TERMINAL} -title Client_T${NUM} -e telnet localhost `port_ui $NUM` & else ${TERMINAL} -e telnet & fi ;; "d" | "x" ) DIR=`dirname $0` start_serv $1 $STARTI ${DIR} I=`expr ${STARTI} + 1` if [ $# -gt 1 ] ; then while [ $I -lt $2 ] ; do IM=`expr $I - 1` start_serv $1 $I ${DIR} --connect=127.0.0.1::`port_tcp $IM`:`port_udp $IM` I=`expr $I + 1` done fi ;; "k" ) killall -9 p2p_node ;; "f" ) echo server $2 : pid=`find_server_pid $2` ;; "g" ) gdb `dirname $0`/p2p_node `find_server_pid $2` ;; "D" ) ddd `dirname $0`/p2p_node `find_server_pid $2` ;; * ) usage ;; esac fi