1. $obj->startLongOrBlockingProcess()
   2. $obj->isProcessComplete()
   3. $obj->getProcessResults()

[download]

With current ithreads implementation, this solution is not as elegant as it could seem. Creating a new thread can be a very expensive operation (in terms of both CPU and memory) that depends on the in-memory size of the runtime. So you can not pretend that threading business are completely hidden behind your class API.

I have this problem when porting Net::SFTP::Foreign to Windows: I needed to do non-blocking IO on a pipe, but windows only supports select on sockets. Using threads to handle IO would be the best alternative (one thread for reading from the pipe and other for writting), but I found it unacceptable because I knew nothing about the caller. For instance it could be a program using 500MB of RAM, and starting the two new threads would triplicate that!!!

In reply to Re^10: Slow evolution of Perl = Perl is a closed Word (thread decade) by salva
in thread Slow evolution of Perl = Perl is a closed Word by Anonymous Monk

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