Date: Sat, 2 Nov 2002 18:57:50 -0800 (PST) From: alireza mahini <alirezamahini@yahoo.com> To: questions@freebsd.org Subject: how can i use two child for sending and receiving data with minimum delay? Message-ID: <20021103025750.99272.qmail@web40707.mail.yahoo.com>
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Hello
I am Alireza .I develop a program for sending and
receiving data via two child as below:
main(){//parent
if(!fork()){
sendto(sd1,...);
recvfrom(rd1,...);
exit(0);
}
if(!fork()){
sendto(sd2,...);
recvfrom(rd2,...);
exit(0);
}
while(waitpid(-1,NULL,WUNTRACED));//wait for childs
....
}
In above solution time of waiting for childs is
about milisecond but when i wrote program without any
child (as below),program execution time is about
microsecond.
main(){
sendto(sd1,...);
recvfrom(rd1,...);
exit(0);
sendto(sd2,...);
recvfrom(rd2,...);
}
Note :sd1,rd1,sd2,rd2 are DGRAM sockets;
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