JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* DevNotes: Add entry cgf-000007.

Browse Source 
* child_info.h (child_info_spawn::parent_winpid): Declare new field.
(child_info_spawn::get_parent_handle): Declare new function.
* dcrt0.cc (child_info_spawn::get_parent_handle): Define new function.
(child_info_spawn::handle_spawn): Recreate parent handle if possible when
dynamically loaded.  Don't mess with parent handle if it's NULL.
* spawn.cc (child_info_spawn::worker): Set parent_winpid appropriately.
This commit is contained in:
Christopher Faylor
2012-05-14 22:42:56 +00:00
parent 77009cee1e
commit 3de7be4c1d
6 changed files with 52 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
winsup/cygwin/dcrt0.cc
View File

@@ -625,13 +625,24 @@ child_info_fork::handle_fork ()
api_fatal ("recreate_mmaps_after_fork_failed");
}
bool
child_info_spawn::get_parent_handle ()
{
parent = OpenProcess (PROCESS_VM_READ, false, parent_winpid);
moreinfo->myself_pinfo = NULL;
return !!parent;
}
void
child_info_spawn::handle_spawn ()
{
extern void fixup_lockf_after_exec ();
HANDLE h;
cygheap_fixup_in_child (true);
memory_init (false);
if (!dynamically_loaded || get_parent_handle ())
{
cygheap_fixup_in_child (true);
memory_init (false);
}
if (!moreinfo->myself_pinfo ||
!DuplicateHandle (GetCurrentProcess (), moreinfo->myself_pinfo,
GetCurrentProcess (), &h, 0,
@@ -669,7 +680,7 @@ child_info_spawn::handle_spawn ()
Otherwise, we no longer need this handle so close it.
Need to do this after debug_fixup_after_fork_exec or DEBUGGING handling of
handles might get confused. */
if (type != _CH_EXEC)
if (type != _CH_EXEC && child_proc_info->parent)
{
CloseHandle (child_proc_info->parent);
child_proc_info->parent = NULL;