On 01/31/2016 11:10 PM, Anthony Walter wrote:
Thanks for the idea Bo. I'll put it near the top of my queue.
+1
IMHO the knowledge about the (great) thread Features of Lazarus are by
far not spread wide enough.
The "lesson" should include:
- Motivation for the usage of threads:
- - long winding calculations
- - blocking sockets and other hardware / system interface
- - exploiting multi-core hardware
- Different programming Paradigms for Main Thread and Worker Threads
- - Main thread: Event driven (never sleep ! )
- - one-shot Worker threads
- - cyclic Worker Thread
- - - "wake up" e.g. by blocking interfaces,TEvent or
CriticalSection
- - - polling with sleep (trading performance against latency)
- Worker Thread to Main Tread Events:
- - TTherad.Synchonize
- - TThread.Queue
- - Application.ProcessMessages (IMHO less important since we have
TThread.Queue in FPC 3.x)
- - using "Event data transport classes" to be used as an argument
of TThread.Queue
- Data integrity
- - "Thread safe"
- - CriticalSection
- - TThreadList
- Creating a Thread pool to prevent overhead for creating and
destroying worker threads.
- Advanced:
- - Threads and DLL/so
...
-Michael
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