Sponsored Content
Top Forums Programming creating a message queue using mq_open Post 302470974 by Loic Domaigne on Thursday 11th of November 2010 01:56:47 PM
Old 11-11-2010
Yeah, now I understand your problem. How do you check that the error returned by mq_open() ? On which OS do you see this problem?
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Unix message Queue

Hi, I am working closly with unix message queues i have encountered the following - after creating the Q and start working with it (pushing & pulling) i receive the following stange parameters on the q's - STIME=no_entry Qnum=0 CBYTES=4140 when this happens, the Q is disabled (meaning i... (3 Replies)
Discussion started by: kel
3 Replies

2. HP-UX

error mq_open message queue

Hello, J work on a HP. I want to create message queue by using mq_open with this parameters: mq_open(p,O_CREAT|O_WRONLY|O_EXCL|0_NONBLOCK,0600,&queue_attr) with p char and the function returns the value -1 and errno equal 2. can you help me ? Thank. (3 Replies)
Discussion started by: AUBERT
3 Replies

3. Programming

Message Queue with fork() help

hi all... ive been trying this program where i spawn 4 threads... and i am trying to use message queue to send msgs from 3 of the threads to the parent thread... but it doent seem to be working... ive almost pulled out my hair tryin to fix the prob :confused: another wierd thing... (1 Reply)
Discussion started by: strider
1 Replies

4. Programming

message queue

Hello, i need to write a message queue "chat server", that should work only localy. Can anyone please help me with some ideas and peshaps code. I'm studying the UNIX IPC mechanisms right now. So far, i understand how it works but i still cannot get an idea how to write a chat programm... ... (2 Replies)
Discussion started by: etenv
2 Replies

5. Programming

URGENT:::Can anybody help me in creating message queue appliction??

hello, I had to implement a message queue application....between 30 processes...... all 30 proceses are getting data from serial port.... And here is THE FLOW::::::::1 connector process...which is linked with message queue to all the 30 applications. Processes get the data from serial port and... (9 Replies)
Discussion started by: arunchaudhary19
9 Replies

6. Programming

How to limit max no of message in a posix message queue

Hii can anyone pls tell how to limit the max no of message in a posix message queue. I have made changes in proc/sys/fs/mqueue/msg_max But still whenever i try to read the value of max. message in the queue using attr.mq_curmsgs (where struct mq_attr attr) its giving the default value as 10.... (0 Replies)
Discussion started by: mohit3884
0 Replies

7. Programming

UNIX Message Queue

Hello !!!!! I have a simple question but i can't find the answer anywhere hope to meet it here. Why it is a bad idea to pass pointers through message queues ? Most structs i see all of their char types are arrays... Is it becase having pointers means we could possibily send wrong bytes ? For... (2 Replies)
Discussion started by: qlyine
2 Replies

8. Ubuntu

Message Queue in Linux

Hello How can I see the created message queues in the system? (4 Replies)
Discussion started by: xyzt
4 Replies

9. Programming

Permission denied when creating message queue

Hi guys. i have wrote a simple program to test message queue attributes. here it is: #include <stdio.h> #include <stdlib.h> #include <mqueue.h> #include <fcntl.h> #include <string.h> #include <errno.h> #include <sys/stat.h> int main() { struct mq_attr attr; mqd_t mqd; ... (2 Replies)
Discussion started by: majid.merkava
2 Replies

10. Programming

POSIX message queue mq_open directory

hello, I try to test the POSIX mq_open function on book unp like below: #include "unpipc.h" # include <mqueue.h> int main(int argc, char **argv) { int c, flags; mqd_t mqd; flags = O_RDWR | O_CREAT; while ((c = getopt(argc, argv, "e")) != -1) { ... (3 Replies)
Discussion started by: anpufeng
3 Replies
apport-cli(1)						      General Commands Manual						     apport-cli(1)

NAME
apport-cli - Command line client for reporting problems SYNOPSIS
apport-cli apport-cli -c report apport-cli -f -p package apport-cli -f -P pid DESCRIPTION
apport automatically collects data from crashed processes and compiles a problem report in /var/crash/. This is a command line frontend for reporting those crashes to the developers. It can also be used to report bugs about packages or running processes. For desktop systems with a graphical user interface, you should consider installing the GTK or Qt user interface (apport-gtk or apport-qt). apport-cli is mainly intended to be used on servers. When called without any options, it processes the pending crash reports and offers to report them one by one. You can also display the entire report to see what is sent to the software developers. OPTIONS
-c report, --crash-file=report Instead of walking over the new crash reports in /var/crash/, report a particular report in an arbitrary file location. This is useful for copying a crash report to a machine with internet connection and reporting it from there. -f, --file-bug Report a (non-crash) problem. Requires specifying --package or --pid. This will automatically attach information about your operat- ing sytem and the package version etc. to the bug report, so that the developers have some important context. -p package, --package=package When being used in --file-bug mode, specify the package to report the problem against. -P pid, --pid=pid When being used in --file-bug mode, specify the PID (process ID) of a running program to report the problem against. This can be determined with e. g. ps -ux. ENVIRONMENT
APPORT_IGNORE_OBSOLETE_PACKAGES Apport refuses to create bug reports if the package or any dependency is not current. If this environment variable is set, this check is waived. Experts who will thoroughly check the situation before filing a bug report can define this in their ~/.bashrc or temporarily when calling the apport frontend (-cli, -gtk, or -qt). AUTHOR
apport and the accompanying tools are developed by Martin Pitt <martin.pitt@ubuntu.com>. Martin Pitt August 01, 2007 apport-cli(1)
All times are GMT -4. The time now is 05:01 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy