Graeme Geldenhuys ha scritto:
Hi,
I'm busy writing a Thread Manager demo in Lazarus to help me
understanding threads better. This demo will then serve as a good
example of how to use threads and synchronization. No better way to
learn something than writing code! :)
A quick summary of what I want to do:
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* You can create a Sync Object by selecting one of the following
types: No Synchronization, Critical Section, Mutex or Semaphore.
* Then you can create as many threads as you want. Default thread
priority is Normal. Each thread counts down from 100% to 0% at which
point the thread is completed.
* A grid will show you all the threads you created. Each grid line
represents a thread.
* You can Stop, Resume or Kill an individual thread.
* You can change an individual thread's Priority (tpIdle thru
tpTimeCritical), though under Linux I know the thread priority is a
integer value. tpXXX values will be displayed in the grid.
* You can also act on all threads: Kill All, Stop All and Resume All.
Questions:
------------------
1. Is there any other synchronization methods that FPC supports?
2. Is there a platform independent way of creating a Mutex? eg: A
CreateMutex() function that maps to each platforms specific
implementation. Something like the TCriticalSection class.
3. Same as (2), but for Semaphores.
That would be great ;)
Actually I managed to use base threads, but I'd like to do some cooler
things with them.
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