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8d0a7701aa
So far Cygwin was jumping through hoops to restrict memory allocation to specific regions. With the advent of VirtualAlloc2 and MapViewOfFile3 (and it's NT counterpart NtMapViewOfSectionEx), we can skip searching for free space in the specific regions and just call these functions and let the OS do the job more efficiently and less racy. Use the new functions on W10 1803 and later in mmap. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cygwin documentation is available on the net at https://cygwin.com You might especially be interested in https://cygwin.com/faq/faq.html#faq.programming.building-cygwin