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Send() and Receive() messages between processes

For the old QNX2 and QNX4 RTOS

Send() and Receive() messages between processes

Postby bboshra » Sun Nov 30, 2003 11:34 am

Hi,

i want to write a shell script to send a message to a running process. i don't know where to start from ?!

can somebody help me ?!
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Postby noc » Mon Dec 01, 2003 10:30 pm

shell itself can't send a QNX message. you could write a C program and call it from the shell.
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Postby bboshra » Wed Dec 03, 2003 10:59 am

is there a way to trace messages going back and forth between processes in QNX 2.x & QNX 3.x?
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Postby bboshra » Wed Dec 03, 2003 11:09 am

is there any document that could help me better understand message sending and communication between proceesses ? and passing parameters between excutables ?! :(
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Postby rick » Wed Dec 03, 2003 2:31 pm

Do you have your QNX2 docs still? The basic theory of how send/recieve/reply works hasn't fundementally changed since the QNX 2 days (and the docs have improved). If you don't have the old docs, look at QNX IPC in the current docs - recognising that some of the details have changed. If you still have your QNX 2 docs, I can tell you what to look at (I will have to go dig my old QNX2 docs out of the closet).
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Postby jpal » Thu Dec 04, 2003 3:07 pm

About 100 years ago :wink: there was a software called NlRelay to connect QNX2 and QNX4 nodes.
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