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Top Forums UNIX for Advanced & Expert Users Which IPC between multiple threads will suit most in scenerio? Post 302233650 by johnray31 on Monday 8th of September 2008 07:42:09 AM
Old 09-08-2008
Question Which IPC between multiple threads will suit most in scenerio?

Hi Friends,

I am designing a solution for a problem: in which my master thread receiving network message and processing them, during processing of each message i need to communicate remote database (that is actually a separate external module)that cause a delay of arount 2 second (), After getting result from external database module i can complete processing of my each incomming message. from now i have to ensure that if i was processing 600 message per second (this was the case when i was not communicating remote database) earlier when i was not using remote database that is causing delay.. this time my message processing should not affect due to remote database interaction. Does there is a solution through creating multiple threads and IPC (memory queue or shared memory) so that i can minimize my delay at remote database query.
 

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HW_GETREMOTECHILDREN(3) 						 1						   HW_GETREMOTECHILDREN(3)

hw_getremotechildren - Gets children of remote document

SYNOPSIS
mixed hw_getremotechildren (int $connection, string $object_record) DESCRIPTION
Returns the children of a remote document. Children of a remote document are remote documents itself. This makes sense if a database query has to be narrowed and is explained in Hyperwave Programmers' Guide. If you want to use this function you should be very familiar with HGIs. You should also consider to use PHP instead of Hyperwave to access external sources. Adding database support by a Hyperwave gateway should be more difficult than doing it in PHP. PARAMETERS
o $connection - The connection identifier. o $object_record - The object record. RETURN VALUES
If the number of children is 1 the function will return the document itself formatted by the Hyperwave Gateway Interface (HGI). If the number of children is greater than 1 it will return an array of object record with each maybe the input value for another call to hw_getremotechildren(3). Those object records are virtual and do not exist in the Hyperwave server, therefore they do not have a valid object ID. How exactly such an object record looks like is up to the HGI. SEE ALSO
hw_getremote(3). PHP Documentation Group HW_GETREMOTECHILDREN(3)
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