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UNIX for Advanced & Expert Users
Performance calculation for Message Queues
Post 302617213 by jim mcnamara on Monday 2nd of April 2012 08:39:50 AM
04-02-2012
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#include <sys/ipc.h>
#include <sys/msg.h>
int main()
{
int qid;
int t;
struct msgbuf mesg;
qid=msgget(IPC_PRIVATE,IPC_CREAT);
mesg.mtype=1L;
mesg.mtext=1;
t=msgsnd(qid,&mesg,1,0);
printf("%d",t);
}
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LEARN ABOUT REDHAT
uname
UNAME(1) FSF UNAME(1) NAME
uname - print system information SYNOPSIS
uname [OPTION]... DESCRIPTION
Print certain system information. With no OPTION, same as -s. -a, --all print all information, in the following order: -s, --kernel-name print the kernel name -n, --nodename print the network node hostname -r, --kernel-release print the kernel release -v, --kernel-version print the kernel version -m, --machine print the machine hardware name -p, --processor print the processor type -i, --hardware-platform print the hardware platform -o, --operating-system print the operating system --help display this help and exit --version output version information and exit AUTHOR
Written by David MacKenzie. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for uname is maintained as a Texinfo manual. If the info and uname programs are properly installed at your site, the command info uname should give you access to the complete manual. uname (coreutils) 4.5.3 February 2003 UNAME(1)