|
|
Sponsored Content
Top Forums
Programming
Msgget(2) returns 0 - a workaround fix
Post 302906934 by achenle on Tuesday 24th of June 2014 03:48:41 PM
06-24-2014
|
|
9 More Discussions You Might Find Interesting
1. Programming
hi,all
i have in trouble about msgget.
i create a queue and the program like blow:
openMsg( pid_t key )
{
....
int msgid;
....
msgid=msgget(key,IPC_CREAT|IPC_EXCL|0666)
if( msgid<=0 ){
fprintf( stdout,"%s,%d",strerror(errno),errno );
return -1;
... (9 Replies)
Discussion started by: subrain
9 Replies
2. Shell Programming and Scripting
I have a script that does a search and replace on a tree using find, xargs and sed that looks something like this.
find . -type f -print0 | xargs -0 sed -i 's/fromthis/tothis/g'
Now this works fine on new versions on Linux but I need to make the script work on an old RAQ550 that has an older... (3 Replies)
Discussion started by: simonb
3 Replies
3. Programming
Hi,
I am having problem with msgget() function.
Here is the problem that I am having on Unix :
I have two processes sender and receiver. Sender generates queue (msgget()) with some key e.g. 938, for output.
Receiver reads from the same queue. i.e. receiver also tries to get queue... (2 Replies)
Discussion started by: Ashwini
2 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I've some existing scripts wherein am using ftp + .netrc. I've defined my macros in .netrc file.
I want to switch to sftp now but it seems it doesn't support macros and .netrc and it gives "command invalid" error.
Is there any other alternative?
Note: I don't want help for... (1 Reply)
Discussion started by: ps51517
1 Replies
5. Windows & DOS: Issues & Discussions
Hello,
I've setup a ubuntu 10.04 server running samba 3.4.7 as domain controler / file server at a customer site, that works great most of the time but I face a random problem. Of course I'm never on the site when the problem occurs, so I cannot investigate in real time.
What happens is that... (2 Replies)
Discussion started by: Manu.b
2 Replies
6. Shell Programming and Scripting
#/bin/sh
.....
#convert memory to MB
let "mmsize_a= ($mmsize)/256"
let "mminuse_a= ($mminuse)/256"
let "mmfree_a= ($mmsize_a -$mminuse_a)"
let "mmfreepercent= (($mmfree_a)/($mmsize_a))*100"
#
#format output
echo "\n\n######################" >>$sndFile
echo "\n$sysName Total Memory usage"... (3 Replies)
Discussion started by: Daniel Gate
3 Replies
7. Programming
I want to use msgget() to obtain a message queue between two processes, here is my code:
the first one create the mq, the second one open it and add a message to it. But when I execute the second one, I get permission denied. I've already desperately tried everything I can think of to solve this... (2 Replies)
Discussion started by: tefino
2 Replies
8. UNIX for Advanced & Expert Users
Solaris 10 Sparc:
When you got a connection locking a tcp/port, and the status is CLOSE_WAIT (for ever :wall:), you just use the tcpdrop, to close the connection.
This is a OS bug. I wrote the bug id bellow:
BUG-ID
6468753 connections stuck in CLOSE_WAIT
The patch that's correct the bug:... (0 Replies)
Discussion started by: thiagofborn
0 Replies
9. AIX
Hello Folks,
Facing a problem starting Apache Services on AIX 7.1
This is the error i'm getting
/oraapp/prodora/iAS/Apache/Apache/bin/apachectl start: httpd started
Syntax error on line 17 of /oraapp/prodora/iAS/Apache/modplsql/cfg/plsql_pls.conf:
Cannot load... (0 Replies)
Discussion started by: filosophizer
0 Replies
LEARN ABOUT REDHAT
ipc
IPC(2) Linux Programmer's Manual IPC(2) NAME
ipc - System V IPC system calls SYNOPSIS
int ipc(unsigned int call, int first, int second, int third, void *ptr, long fifth); DESCRIPTION
ipc() is a common kernel entry point for the System V IPC calls for messages, semaphores, and shared memory. call determines which IPC function to invoke; the other arguments are passed through to the appropriate call. User programs should call the appropriate functions by their usual names. Only standard library implementors and kernel hackers need to know about ipc(). CONFORMING TO
ipc() is Linux specific, and should not be used in programs intended to be portable. SEE ALSO
msgctl(2), msgget(2), msgrcv(2), msgsnd(2), semctl(2), semget(2), semop(2), shmat(2), shmctl(2), shmdt(2), shmget(2) Linux 1.2.4 1995-04-15 IPC(2)