Parallel Programming with OmniThreadLibrary

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Presentation transcript:

Parallel Programming with OmniThreadLibrary Primož Gabrijelčič

programmer, consultant, speaker, trainer Delphi / Smart Mobile Studio Primož Gabrijelčič programmer, consultant, speaker, trainer Delphi / Smart Mobile Studio Email: primoz@gabrijelcic.org Twitter: @thedelphigeek Skype: gabr42 The Delphi Geek – http://www.thedelphigeek.com Smart Programmer – http://www.smartprogrammer.org Links to this presentation and sample code will be available on the blog, link “Presentation” on the top right

What is OmniThreadLibrary?

OmniThreadLibrary is … … VCL for multithreading … released under an open license … actively developed … frequently used … available in Delphis from 2007 to XE3 Windows 32- or 64-bit, VCL only

How do I learn more?

OmniThreadLibrary on the web Home: otl.17slon.com Code: omnithreadlibrary.googlecode.com Book: leanpub.com/omnithreadlibrary Wiki: otl.17slon.com/book Support: otl.17slon.com/forum

How do I execute long operation in background and run some code in the main thread after the long operation has finished?

Async/Await Initialization Long operation Cleanup

How do I run long calculation in background and process the result in the main thread?

Future Long calculation Use result

How do I run same background operation in multiple simultaneous copies processing an input?

Background Worker Data Process Process Process Process Process Result

How do I parallelize a process that executes in multiple stages?

Pipeline Data Stage 1 Stage 2 Stage 3 Stage 4 Result

How do I work with databases in multithreaded environment?

Databases GUI Frame Frame Database Access Readonly is simple; read/write is harder (apply updated) Redone fishfacts demo Database Access

Questions?