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RE: second call to mmap() results in error
- From: "Lavrentiev, Anton (NIH/NLM/NCBI) [C]" <lavr at ncbi dot nlm dot nih dot gov>
- To: "cygwin at cygwin dot com" <cygwin at cygwin dot com>
- Date: Thu, 30 Jan 2014 18:36:34 +0000
- Subject: RE: second call to mmap() results in error
- Authentication-results: sourceware.org; auth=none
- References: <01a801cf1cfa$77957900$66c06b00$ at lbmsys dot com> <20140129181250 dot GW2821 at calimero dot vinschen dot de> <52E95786 dot 8050606 at gmail dot com> <20140130095822 dot GY2821 at calimero dot vinschen dot de> <001801cf1db6$66c47c40$344d74c0$ at lbmsys dot com> <20140130124558 dot GA2821 at calimero dot vinschen dot de> <003801cf1dbd$fc3ffc70$f4bff550$ at lbmsys dot com> <20140130170142 dot GD2821 at calimero dot vinschen dot de> <5F8AAC04F9616747BC4CC0E803D5907D0C4763CC at MLBXv04 dot nih dot gov> <52EA9A53 dot 2050203 at cygwin dot com>
> Maybe you missed Corinna's reply?
>
> <http://cygwin.com/ml/cygwin/2014-01/msg00519.html>
No, I did not. She was going after ftruncate() there.
Yet, the problem seems to be in cygwin's <sys/mman.h>, which does this:
#ifndef __INSIDE_CYGWIN__
extern void *mmap (void *__addr, size_t __len, int __prot, int __flags, int __fd, off_t __off);
#endif
which means that user code can't use the prototype. Why is it conditional?
Anton Lavrentiev
Contractor NIH/NLM/NCBI
P.S. http://linux.die.net/man/2/mmap
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