c - What is TpCallbackMayRunLong()? -

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i gettign segmentation fault in function have no idea does,why segfaults, or code calls it.

can shed light? c code in windows using netbeans ide , mingw toolchain.

[update] normally, @joachimpileborg suggetsed, when teh segmentation fault happens, call stack not include code. in fact, reads

ntdll!tpcallbackmayrunlong () ?? () ntdll!tpcallbackmayrunlong () ?? ()

and ?? () evaluate zero!

i guess, form name, tpcallbackmayrunlong() being called during idle time, system, , not code.

i never did find out causing this, name of function guessed didn't blocking wait (timeout = zer0), set timeout 20 seconds , works fine.

i know sender transmit constantly, 20 seconds enough time synch startup of sender & recevier. ymmv


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