*Bug report:*
H5FDsec2.c : line 337 is:
if((fd = HDopen(name, o_flags, 0666)) < 0)
The 0666 for the file permissions is not valid for MSVC std lib _open()
which is waht HDopen is defined as. It happens to hit the important bits,
but just by luck. It should be (_S_IREAD | _S_IWRITE) for MSVC. This could
be done in the HDopen macro with a 1 line change (assuming sys/stat.h is
included already).
*File locking on windows:*
I wanted files that are open for read-write to deny other writers. To do
this I replaced the HDopen() line in H5FDsec2.c with this:
#include <share.h>
int sh_flags = ((H5F_ACC_RDWR & flags) || (H5F_ACC_CREAT & flags)) ?
_SH_DENYWR : _SH_DENYNO;
if((fd = _sopen(name, o_flags|_O_BINARY, sh_flags, _S_IREAD|_S_IWRITE)) <
0) {
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