Re: Non blocking spin lock..


"Chris Thomasson" <cristom@xxxxxxxxxxx> wrote in message
news:m8adnUiN9Jiwsa3bnZ2dnUVZ_gKdnZ2d@xxxxxxxxxxxxxx
"David Schwartz" <davids@xxxxxxxxxxxxx> wrote in message
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On Apr 23, 6:59 am, "cwarwick" <warw...@xxxxxxx> wrote:

My apologies if this post appears twice. My first post didn't appear,
and I didn't keep a copy of it. So this is the same information
presented differently.

Anyway here's my lock object.. (just the implementation.)

It takes years of experience to write correct multi-threading
synchronization primitives. You've basically made every mistake.
That's fine if you're learning, but do not deploy this code.

Heck! I did not know that this was an x86 assembly language question!

;^)

AFAICT, his trylock scheme should work... Also, to the OP:

Why not just use pthread_mutex_trylock?

Well im using Delphi so i dont think it has PThreads, also all i know next
to nothing about them. The most i've done before now is to use an occasional
background thread chrunching some numbers while the main thread shows a
progress bar or graph or somthing. In which case i just paused the
background thread while i accessed the data.




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