Re: Simplest IPC
Re: Simplest IPC
- Subject: Re: Simplest IPC
- From: Quinn <email@hidden>
- Date: Sat, 26 Apr 2003 10:35:22 +0100
At 10:57 +0300 26/4/03, Oleksiy Gorelov wrote:
Could some body explain, how two independent applications on the sam host
can establish connectin for IPC.
To get a meaningful answer you really need to give more details about
your requirements. How much information do you need to pass between
your client and server? The total size of data passed between the
two and the expected number of requests per second is both important.
Do you have lots of different types of client/server requests (and
thus would like RPC parameter marshalling), or just a single one.
What does the main event loop of your server look like? There are
/many/ IPC mechanisms on Mac OS X, so choosing the right one requires
some analysis.
At second, I read kernel_principles and kernel_interfaces pdfs. And I dont
understand how one task can send port right to other task if it does not have
already send right for one port of the task? Does it mean that IPC can be
established only between paren and child processes?
For Mach IPC, the server typically registers with the bootstrap
server and the client looks up the server via bootstrap server calls.
See /usr/include/servers/bootstrap.h for details.
At last, I can use POSIX sokets in AF_UNIX mode, but Is it efficiently
implemented on OS X?
Do you want to know whether it's efficiently implemented, or whether
it's implemented efficiently enough for your needs? I'm presuming
the latter, hence my first question. We can't tell you whether it'll
meet your needs unless you tell us what they are.
S+E
--
Quinn "The Eskimo!" <
http://www.apple.com/developer/>
Apple Developer Technical Support * Networking, Communications, Hardware
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| | >Simplest IPC (From: "Oleksiy Gorelov" <email@hidden>) |