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Re: Using U++ with existing code [message #24937 is a reply to message #24924]

Fri, 05 February 2010 10:17

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

TRNG98 wrote on Thu, 04 February 2010 14:37

Thank you for your help -- I'll hack around a while --
The C is multi-threaded and run some API functions (not Win API:s).
I don't want to rewrite it. Surprised

// Bo

Multithreaded: There is one thing that you should know: U++ uses own memory allocator that need some support in threads - basically, as allocator keeps per-thread cache, this cache has to be released when thread finishes.

For you, in practice, this should not be a problem, as long as you do not use new/delete in threads of your C application. But new/delete is (likely to be) used if actually call any U++ code from any non-main thread!

Simple way how to fix this is to specify "USEMALLOC" flag - that kicks out our memory allocator and uses plain malloc/free from the C library (but performance of U++ drops - IMO not an issue if you app depends on malloc/free anyway).

Best solution is to use U++ Thread class for threading. Good solution is to release the per-thread cache at the end of your threads (by calling MemoryFreeThread() Wink

Mirek

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[Message index]

		Using U++ with existing code By: TRNG98 on Thu, 04 February 2010 14:47
		Re: Using U++ with existing code By: cbpporter on Thu, 04 February 2010 15:35
		Re: Using U++ with existing code By: dolik.rce on Thu, 04 February 2010 15:46
		Re: Using U++ with existing code By: koldo on Thu, 04 February 2010 16:12
		Re: Using U++ with existing code By: TRNG98 on Thu, 04 February 2010 20:37
		Re: Using U++ with existing code By: mirek on Fri, 05 February 2010 10:17

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