Re: Re: Dealing with non Thread safe modules

3.Allow only one thread at a time to access the library (mutex fr the whole library)

How would one do this? Obviously I am not a thread master, but I have an almost infinite capacity for frustration, which serves me as well as my caffine addiction and my distaste for sleep. However, I really want to work with threads. What is the interface for using ithreads, and where is it documented? Is this different from using Thread.pm?
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Comment on Re: Re: Dealing with non Thread safe modules

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Re: Re: Re: Dealing with non Thread safe modules by AgentM (Curate) on Feb 12, 2001 at 01:39 UTC
Good question. In Perl, this is difficult since the Threads.pm muteces are exactly what's holding PerlThreads back in the stone age. I'm working on a fake mutex that uses flock on some file. Read more about the difficulties with flock here. In the meantime, just flock the library or some arbitrary file everytime you wish to access the file. Keep in mind that this defeats any use of threads within that library- only one thread at a time may access it and your thread stacks may expand greatly. I'll keep you posted on my own efforts as well. Good luck! AgentM Systems nor Nasca Enterprises nor Bone::Easy nor Macperl is responsible for the comments made by AgentM. Remember, you can build any logical system with NOR.	[reply]
Re: Re: Re: Re: Dealing with non Thread safe modules by chorg (Monk) on Feb 12, 2001 at 02:31 UTC
Bear with me - I'm almost there... When you say flock the library - exactly what do you mean? I am confused... BTW, thanks for the help - I'm learning tons today:) _______________________________________________ "Intelligence is a tool used achieve goals, however goals are not always chosen wisely..."	[reply]


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Re: Re: Dealing with non Thread safe modules

AgentM Systems nor Nasca Enterprises nor Bone::Easy nor Macperl is responsible for the comments made by AgentM. Remember, you can build any logical system with NOR.