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* sigproc.cc (child_info::child_info): Set msv_count to non-zero 

value only on systems requiring it.
This commit is contained in:
Corinna Vinschen 2007-01-30 21:53:05 +00:00
parent c7cd784974
commit 62d172bb49
2 changed files with 8 additions and 3 deletions
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5
winsup/cygwin/ChangeLog
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@ -1,3 +1,8 @@
2007-01-30 Corinna Vinschen <corinna@vinschen.de>
* sigproc.cc (child_info::child_info): Set msv_count to non-zero
value only on systems requiring it.
2007-01-28 Corinna Vinschen <corinna@vinschen.de>
* include/ftw.h: Include sys/cdefs.h.

6
winsup/cygwin/sigproc.cc
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@ -804,14 +804,14 @@ child_info::child_info (unsigned in_cb, child_info_types chtype, bool need_subpr
count doesn't result in trying to evaluate the content, so we do this
really only for Vista 64 for now.
However, since this doesn't seem to harm normal windows operation we'll
just set it unconditionally until we hear complaints.
Note: It turns out that a non-zero value *does* harm operation on
XP 64 and 2K3 64 (Crash in CreateProcess call).
The value is sizeof (child_info_*) / 5 which results in a count which
covers the full datastructure, plus not more than 4 extra bytes. This
is ok as long as the child_info structure is cosily stored within a bigger
datastructure. */
msv_count = in_cb / 5;
msv_count = wincap.needs_count_in_si_lpres2 () ? in_cb / 5 : 0;
intro = PROC_MAGIC_GENERIC;
magic = CHILD_INFO_MAGIC;