Add comments to fork() logic for readibility
[notion/jeffpc.git] / ioncore / pholder.h
blob12e90fae7ea3897d947a38668ceb6060ba8c2605
1 /*
2 * ion/ioncore/pholder.h
4 * Copyright (c) Tuomo Valkonen 2005-2009.
6 * See the included file LICENSE for details.
7 */
9 #ifndef ION_IONCORE_PHOLDER_H
10 #define ION_IONCORE_PHOLDER_H
12 #include "common.h"
13 #include "attach.h"
14 #include "extlconv.h"
17 #define PHOLDER_ATTACH_SWITCHTO 0x0001
18 #define PHOLDER_ATTACH_RETURN_CREATEROOT 0x0002
21 /* Note: PHolders should be destroyed by their acquirer. */
23 DECLCLASS(WPHolder){
24 Obj obj;
28 extern bool pholder_init(WPHolder *ph);
29 extern void pholder_deinit(WPHolder *ph);
31 DYNFUN WRegion *pholder_do_attach(WPHolder *ph, int flags,
32 WRegionAttachData *data);
34 extern WRegion *pholder_attach_(WPHolder *ph, int flags,
35 WRegionAttachData *data);
37 extern bool pholder_attach(WPHolder *ph, int flags, WRegion *reg);
39 extern bool pholder_attach_mcfgoto(WPHolder *ph, int flags, WRegion *reg);
41 DYNFUN WRegion *pholder_do_target(WPHolder *ph);
43 extern WRegion *pholder_target(WPHolder *ph);
45 DYNFUN bool pholder_stale(WPHolder *ph);
47 DYNFUN bool pholder_do_check_reparent(WPHolder *ph, WRegion *reg);
49 extern bool pholder_check_reparent(WPHolder *ph, WRegion *reg);
51 DYNFUN bool pholder_do_goto(WPHolder *ph);
53 extern bool pholder_goto(WPHolder *ph);
55 extern WPHolder *pholder_either(WPHolder *a, WPHolder *b);
57 DYNFUN WPHolder *region_managed_get_pholder(WRegion *reg, WRegion *mgd);
58 DYNFUN WPHolder *region_get_rescue_pholder_for(WRegion *reg, WRegion *mgd);
60 extern WPHolder *region_get_rescue_pholder(WRegion *reg);
62 #endif /* ION_IONCORE_PHOLDER_H */