06-21-2008
I could see two possible problems,
controlling the behavior ( which we are interested ) with a variable which is certainly not in context for the segments of the program, in such a case there is no need for the threads to branch out ( obey ) execution based on the value of the boolean variables
another thing that I could smell is, the possibility of mutual lock ( am guessing it ) where it just runs fine for a instant ' t ' units of time after that gets into the mutual lock condition.
Is the behavior of working fine for few minutes and receiving no updates a constant behavior ? I mean is it happening at 'nth' instant of time each time? If so, my assumption might be wrong - else there is a possibility
One more question, ( sorry if its silly ) do you check/validate the creation of threads ? Since its running in an infinite loop, conditions might go wrong and outbursting with the maximum number of threads that can be created.
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LEARN ABOUT HPUX
tt_feature_enabled
tt_feature_enabled(library call) tt_feature_enabled(library call)
NAME
tt_feature_enabled -- determine if a particular feature has been enabled in this process
SYNOPSIS
#include <Tt/tt_c.h>
Tt_status tt_feature_enabled(
Tt_feature feature);
DESCRIPTION
The tt_feature_enabled function queries the ToolTalk service to see if the specified feature has previously been enabled. This allows a
library that "wraps around" ToolTalk for sending and receiving messages to determine if multithreaded execution has been enabled by the
main program, and to modify its behavior accordingly.
ARGUMENTS
feature Specifies the feature whose enabled status is to be checked.
RETURN VALUE
Upon completion, the tt_feature_enabled function returns the status of the operation as one of the following Tt_status values:
TT_OK The feature has been enabled previously.
TT_WRN_NOT_ENABLED
The feature has not yet been enabled
TT_ERR_UNIMP
The version of the ToolTalk library linked with the calling code does not support the indicated feature.
APPLICATION USAGE
A library using ToolTalk could check to see if the calling application had previously turned on ToolTalk's multithreading feature with the
following code:
Tt_status ttstat;
ttstat = tt_feature_enabled(TT_FEATURE_MULTITHREADED);
if (ttstat != TT_OK) {
ttstat = tt_feature_required(TT_FEATURE_MULTITHREADING);
}
SEE ALSO
Tt/tt_c.h - Tttt_c(5), tt_feature_required(3)
tt_feature_enabled(library call)