Sponsored Content
Full Discussion: Unix message Queue
Top Forums UNIX for Advanced & Expert Users Unix message Queue Post 38814 by kel on Sunday 27th of July 2003 10:30:28 AM
Old 07-27-2003
Question 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 can not approach it by any way)

can anyone help ?

Thanks In Advanced
Kel

P.s
The same phonomenen is created on all the Q's i am working with.
 

10 More Discussions You Might Find Interesting

1. Programming

a message queue question..

Hi there: Thanks first. When I use a message queue amony severl processes, will I have to synchronize the queue? I don't think I would have to because a message queue is implemented in a link listed. Correct me If I am wrong... (0 Replies)
Discussion started by: yanhu
0 Replies

2. Programming

Deleting ALL message queue

hi all, I'm working on this problem for 2 days. Can somebody tell me that how to delete all message queues from the system ? Since "ipcs -q" gives the list of all existing message queue, then there must be a system call and data stucture where from I can fetch the data about all existing... (2 Replies)
Discussion started by: v_rathor
2 Replies

3. Programming

Message Queue Problem Again..

Is there any way one can delete , say , a particular message from a message queue on system V? (2 Replies)
Discussion started by: satansfury
2 Replies

4. IP Networking

message queue problem

I am sending and retriving the message to the queue the problem is after retrieving the message can i see what is there in my message queue. (actually in my application i am encountring some garbage value) so i want to retieve this garbage value and also want to know its size how... (0 Replies)
Discussion started by: ramneek
0 Replies

5. 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

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

Message Queue Problem

Hi all, I need help about message queues, i have a server-client program that communicates each other via msg queue, firstly server opens its msg queue and waits for msg then client opens server msg queue and its own msg queue(for receiving msg from server,clients sends msg to server msg... (7 Replies)
Discussion started by: SaTYR
7 Replies

8. 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

9. Shell Programming and Scripting

Move xml files from unix to message queue.

Hi, I need to move the XML files from the UNIX to the message queue. Please help me out to write the code.. Thanks, Mohana Krishnan (0 Replies)
Discussion started by: krishnan_6015@y
0 Replies

10. Programming

Please help:program hang stuck there signal handling on POSIX Message Queue UNIX C programming

in a single main() function,so need signal handling. Use Posix Message Queue IPC mechanism , can ignore the priority and other linked list message,to implement the scenario: client:Knock Knock server:who's there client: Eric Server:Eric,Welcome. client:exit all process terminated ... (1 Reply)
Discussion started by: ouou
1 Replies
acl_copy_int(3) 					     Library Functions Manual						   acl_copy_int(3)

NAME
acl_copy_int - Copies the ACL from contiguous, persistent format to internal working space format LIBRARY
Security Library (libpacl.a) SYNOPSIS
#include <sys/acl.h> acl_t acl_copy_int( void *buf_p); PARAMETERS
The buffer containing the contiguous, persistent form of the ACL to be copied. DESCRIPTION
NOTE: This function is based on Draft 13 of the POSIX P1003.6 standard. The acl_copy_int() function copies the contents of the ACL from the buffer pointed to by buf_p to the working storage internal format. Space is allocated as required. Upon successful completion, a pointer to the ACL internal working storage is returned. RETURN VALUES
Upon successful completion, the acl_copy_int function returns a pointer to the working storage. Otherwise a NULL pointer is returned and errno is set to indicate the error. ERRORS
If any of the following conditions occur, the acl_copy_int() function sets errno to the corresponding value: The ACL referenced by buf_p is not valid. The ACL working storage could not be allocated. RELATED INFORMATION
acl_copy_ext(3) Security delim off acl_copy_int(3)
All times are GMT -4. The time now is 08:29 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy