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тАО08-22-2005 06:01 PM
тАО08-22-2005 06:01 PM
I am migrating from VAX server to HP-UX server.In VAX i have used mailbox to store incoming data from the Clients.How to replace this mailbox concept in HP-UX?
Pls help me out.
Solved! Go to Solution.
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тАО08-22-2005 07:01 PM
тАО08-22-2005 07:01 PM
Re: Replacing VMS mailbox concept in HP-UX
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тАО08-22-2005 07:45 PM
тАО08-22-2005 07:45 PM
Re: Replacing VMS mailbox concept in HP-UX
I think here nobody is able to help you because we are expert of VMS no Unix.
Unix uses pipe to connect two processes. Pipe is like a mailbox but with some limitations. For example, in unix both processes have to be running to comunicate each to other (pipe is merely an i/o channel) while vms mailbox keeps record until receiver process read from it.
Antonio Vigliotti
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тАО08-22-2005 08:07 PM
тАО08-22-2005 08:07 PM
Re: Replacing VMS mailbox concept in HP-UX
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тАО08-22-2005 08:11 PM
тАО08-22-2005 08:11 PM
Re: Replacing VMS mailbox concept in HP-UX
What exactly i am doing is i am getting a buffer with data from another m/c running qnx and storing that buffer data in the mailbox and accessing that mailbox through a fortran file.Is there any storing method now to save the buffer data in HP-UX and access that data from that stored method.
Please help me out sir.
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тАО08-22-2005 08:56 PM
тАО08-22-2005 08:56 PM
Solutionhttp://forums1.itrc.hp.com/service/forums/familyhome.do?familyId=117
If you want to store buffer in vms mailbox, you can just use a mailbox. Record is avaiable until receiver process read from it.
Antonio Vigliotti
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тАО08-22-2005 08:59 PM
тАО08-22-2005 08:59 PM
Re: Replacing VMS mailbox concept in HP-UX
If you are looking for something a bit more robust, i.e. looking for guaranteed delivery, in order sequencing etc. Consider MQ (Either Bea MessageQ or IBM MQSeries)
p.s. why in goodnesses name are you writing in Fortran? Not that I don't like Fortran, but if you are doing a migration, you may want to consider something more portable, with a bigger maintenance skill base etc...
Peter
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тАО08-22-2005 09:00 PM
тАО08-22-2005 09:00 PM
Re: Replacing VMS mailbox concept in HP-UX
- an OpenVMS mailbox works as a record-oriented device, by default.
- a PIPE is a stream-oriented device
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тАО08-23-2005 12:17 AM
тАО08-23-2005 12:17 AM
Re: Replacing VMS mailbox concept in HP-UX
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тАО08-23-2005 01:45 AM
тАО08-23-2005 01:45 AM
Re: Replacing VMS mailbox concept in HP-UX
The natural replace for mailbox IO on VMS with something on Unix (any Unix) is "fifo's"
Ckeck out the Unix man pages for mknod.
However... while you are re-implementing you may want to consider to switch to sockets and use tcp to communicate, allowing client en server application to live on distinct nodes some day.
Of course the recommended upgrade from a VAX is an Alpha or Itanium OpenVMS server. You should be able to save a bundle of porting costs that way :-).
Hein.