Sponsored Content
Top Forums Programming POSIX message queue mq_open directory Post 302653773 by anpufeng on Sunday 10th of June 2012 10:17:34 AM
Old 06-10-2012
Quote:
Originally Posted by Corona688
As far as I know message queues aren't real files. They can be in some implementations but there's no need for them to be, and often aren't. So the name only has meaning to the kernel.
thanks, I have found it out, I can use the command
sudo mount -t mqueue none des-dir
to mount to the file system, the "mqueue-files" I created can be found there.Smilie
 

10 More Discussions You Might Find Interesting

1. Programming

POSIX Message Queue - Settings

How can I increase the POSIX Msg Q parameter SC_MQ_PRIO_MAX? The maximum is defined as 32. Can I increase the number? If so, how? Deepa (0 Replies)
Discussion started by: Deepa
0 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. HP-UX

posix ipc message queue

Hello, My question is related to "pipcs -qa" command under HP-UX 11i PA-RISC 64 bits. We have a little C program that creates posix ipc message queues using the mq_open() system function. The program fail with 'No space left on device' error when we create big queues. What is the system... (6 Replies)
Discussion started by: cadanir
6 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. Linux

POSIX message queue size

Hi all, Please tell me how to change POSIX message queue maximum size? "ulimit" is not a solution because it controls shell resources. But i need to control queue size before login in and starting the shell. It is needed to limit queue size for applications started before login in. Sorry for my... (7 Replies)
Discussion started by: Vourhey
7 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

POSIX mq_receive issue: Message too long

Hello, I am trying to implement posix message queue application. I am faced with an error on the mq_receive section. It says "Message too long". I've tried couple of small tweeks, but to no result. Please do suggest any rectificaitons. mq_send section-works successfully #include... (2 Replies)
Discussion started by: katwalatapan
2 Replies

8. Programming

creating a message queue using mq_open

Hi all, First of all thanks in advance for reading my post and for your heart for helping me. I am trying to create a message queue using mq_open(name,oflags,mode_t,attr) method. But that function call is returning with an error code EFAULT. By googling it I found that it happens when there is... (10 Replies)
Discussion started by: parusasi
10 Replies

9. 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

10. Programming

POSIX Message Queue Memory Allocation

Hi, I wanted to know whether the POSIX message queues are statically allocated memory by the kernel based on the parameters specified in the open or as and when we send messages, memory are allocated? Does the kernel reserve the specified memory for the message queue irrespective of whether... (1 Reply)
Discussion started by: sumtata
1 Replies
MOUNT.NFS(8)						      System Manager's Manual						      MOUNT.NFS(8)

NAME
mount.nfs, mount.nfs4 - mount a Network File System SYNOPSIS
mount.nfs remotetarget dir [-rvVwfnsh ] [-o options] DESCRIPTION
mount.nfs is a part of nfs(5) utilities package, which provides NFS client functionality. mount.nfs is meant to be used by the mount(8) command for mounting NFS shares. This subcommand, however, can also be used as a standalone command with limited functionality. remotetarget is a server share usually in the form of servername:/path/to/share. dir is the directory on which the file system is to be mounted. Under Linux 2.6.32 and later kernel versions, mount.nfs can mount all NFS file system versions. Under earlier Linux kernel versions, mount.nfs4 must be used for mounting NFSv4 file systems while mount.nfs must be used for NFSv3 and v2. OPTIONS
-r Mount file system readonly. -v Be verbose. -V Print version. -w Mount file system read-write. -f Fake mount. Don't actually call the mount system call. -n Do not update /etc/mtab. By default, an entry is created in /etc/mtab for every mounted file system. Use this option to skip making an entry. -s Tolerate sloppy mount options rather than fail. -h Print help message. nfsoptions Refer to nfs(5) or mount(8) manual pages. NOTE
For further information please refer nfs(5) and mount(8) manual pages. FILES
/etc/fstab file system table /etc/mtab table of mounted file systems SEE ALSO
nfs(5), mount(8), AUTHOR
Amit Gud <agud@redhat.com> 5 Jun 2006 MOUNT.NFS(8)
All times are GMT -4. The time now is 06:10 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy