readme_echoclient

vxworks下的一些DEMO程序风常丰富的内容

FILE LIST -
             echoClient.c

DESCRIPTION - 
	     The TCP echo client repeatedly sends the input and then reads 
             it back using TCP socket communication.

	     ECHO services are important tools that network managers use 
             to test reachability (to make sure the connection works), 
             debug protocol software, and identify routing problems.

	     This also demonstrates the usage of SO_REUSEADDR, 
             SO_KEEPALIVE and TCP_NODELAY set socket options.

RUNNING DEMO -
	     You need to set/change the value of the defaultPort 
             (should be greater than 5000 - unreserved port) and the 
             defaultServer (internet address of the echo server) variables.

	     Run echoTcpClientRun task on one VxWorks system as follows
	     after starting the echoTcpServerRun task from 
             another VxWorks system.
	     The other half of the demonstration is in echoServer.c.

	     Place the echoClient.c file in your
	     <Tornado> dir. Depending on the target
	     you have, define the CPU in your compile line and use
	     the Makefile in the BSP dir. to compile.

	     To run this code invoke the function echoTcpClientRun()

TESTED ON -  Host/Target : Solaris 2.5.1 /mv1604
	     VxWorks     : 5.3.1

EXAMPLE COMPILE LINE -
              make CPU=PPC604 echoClient.o

%make CPU=PPC604 echoClient.o
ccppc -B/petaluma1/mayur/tor101-ppc/host/sun4-solaris2/lib/gcc-lib/ 
-mstrict-align -ansi -nostdinc -O2 -fvolatile -fno-builtin -fno-for-scope 
-Wall -I/h   -I. -I/petaluma1/mayur/tor101-ppc/target/config/all 
-I/petaluma1/mayur/tor101-ppc/target/h 
-I/petaluma1/mayur/tor101-ppc/target/src/config 
-I/petaluma1/mayur/tor101-ppc/target/src/drv -DCPU=PPC604  -DMV1600 
-DTARGET_DIR="\"mv1604\""   -c echoClient.c

OUTPUTS/LOGFILE -

On VxWorks target:
==================

-> ld <echoClient.o
value = 917544 = 0xe0028
-> sp (echoTcpClientRun, "147.11.41.154", 7001, 5 , "Hello World!!!")
task spawned: id = 5c7c50, name = u14
value = 6061136 = 0x5c7c50

The output on the console window:
=================================

Binding SERVER
Listening to client
Server's address is 930b299a:
Connected...
The length of the message is - 14 bytes
Message: Hello World!!!

buffer is - Hello World!!! and numRead = 14
echoTcpClient received echo message: Hello World!!!
buffer is - Hello World!!! and numRead = 14
echoTcpClient received echo message: Hello World!!!
buffer is - Hello World!!! and numRead = 14
echoTcpClient received echo message: Hello World!!!
buffer is - Hello World!!! and numRead = 14
echoTcpClient received echo message: Hello World!!!
buffer is - Hello World!!! and numRead = 14
echoTcpClient received echo message: Hello World!!!
No more bytes to read 
Closing the sockets

Binding SERVER
Listening to client