Mark Morgan Lloyd wrote:
Dennis Poon wrote:
I want to kill a thread created by my fpc program (not killing the
entire process).
I have to use an external win32 dll.
I am already calling it from a separate thread but still, that dll
something goes into an infinite loop which made my thread freezes.
Are you absolutely sure that the loop is a coding error in the DLL, or
is there any possibility that it's either because you're not calling
it properly, because you've not initialised something properly, or
because you're mistakenly allocating memory using a heap manager in
the DLL and then releasing it in the main program or vice-versa?
Noting everything that Jonas has said, and pointing out that there's
been extensive discussion in the past relating to even calling
Suspend from inside the thread's own code, I'd point out that it's
fairly common practice for programs such as Firefox to launch a
separate process (not thread) to handle e.g. an instance of the Flash
player. Is this something you could do, or do you have to have
fine-grained control of multiple subroutines in the DLL?
It am quite sure it is the dll's problem because the problem happens at
11pm everyday only. Nothing in my program has anything related to that time.
The dll is a brokerage firm's order placing system. 11pm is when the
market closes so probably the dll has something done at that time that
loops forever.
Using a separate process to call it is possible but exchanging data
between my program and that process will slow down entire communication
and time sensitivity is required for online trading program. The
supplier of the dll is quite irresponsive to questions or bug report.
Anyway, thanks for all your comments.
Dennis
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