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* spawn.cc (spawn_guts): Start pure-windows processes in a suspended state to

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avoid potential DuplicateHandle problems.
This commit is contained in:
Christopher Faylor 2007-03-28 14:34:24 +00:00
parent 832a897240
commit 2319775273
2 changed files with 9 additions and 6 deletions
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5
winsup/cygwin/ChangeLog
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@ -1,3 +1,8 @@
2007-03-28 Christopher Faylor <me@cgf.cx>
* spawn.cc (spawn_guts): Start pure-windows processes in a suspended
state to avoid potential DuplicateHandle problems.
2007-03-13 Eric Blake <ebb9@byu.net> 2007-03-13 Eric Blake <ebb9@byu.net>
* include/cygwin/stat.h (S_TYPEISMQ, S_TYPEISSEM, S_TYPEISSHM): * include/cygwin/stat.h (S_TYPEISMQ, S_TYPEISSEM, S_TYPEISSHM):

10
winsup/cygwin/spawn.cc
View File

@ -455,7 +455,7 @@ spawn_guts (const char * prog_arg, const char *const *argv,
So we have to start the child in suspend state, unfortunately, to avoid So we have to start the child in suspend state, unfortunately, to avoid
a race condition. */ a race condition. */
if (!newargv.win16_exe if (!newargv.win16_exe
&& (mode != _P_OVERLAY || cygheap->fdtab.need_fixup_before ())) && (!ch.iscygwin () || mode != _P_OVERLAY || cygheap->fdtab.need_fixup_before ()))
c_flags |= CREATE_SUSPENDED; c_flags |= CREATE_SUSPENDED;
runpath = null_app_name ? NULL : (const char *) real_path; runpath = null_app_name ? NULL : (const char *) real_path;
@ -609,11 +609,9 @@ loop:
if (!newargv.win16_exe && myself->wr_proc_pipe) if (!newargv.win16_exe && myself->wr_proc_pipe)
{ {
if (!looped) if (!looped)
{ myself->sync_proc_pipe (); /* Make sure that we own wr_proc_pipe
myself->sync_proc_pipe (); /* Make sure that we own wr_proc_pipe just in case we've been previously
just in case we've been previously execed. */
execed. */
}
orig_wr_proc_pipe = myself->dup_proc_pipe (pi.hProcess); orig_wr_proc_pipe = myself->dup_proc_pipe (pi.hProcess);
} }
pid = myself->pid; pid = myself->pid;