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Prevent a Photon application from exiting
void PtPreventExit( void );
ph
PtPreventExit() lets
Photon know that it isn't safe to exit your application.
In a multithreaded application, any thread can call PtExit(), but another
thread might be in the middle of an important operation, such as writing
a file. To prevent this situation from arising, call PtPreventExit() before
starting the operation, and call PtAllowExit() when
it's done.
|
Instead of calling PtPreventExit() and PtAllowExit() directly,
you're better off calling PtEnter() and PtLeave() with Pt_DELAY_EXIT set
in the flags. For a discussion of the difference between these functions
and using Pt_DELAY_EXIT, see “Exiting a multithreaded program” in
the Parallel Operations chapter of the Photon Programmer's
Guide. |
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
PtAllowExit(), PtEnter(), PtExit(), PtLeave()
Parallel Operations chapter
of the Photon Programmer's Guide
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