HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c44468d LC |
1 | #ifndef SCM_BDW_GC_H |
| 2 | #define SCM_BDW_GC_H | |
| e7bca227 | 3 | |
| aec3d99b | 4 | /* Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc. |
| e7bca227 LC |
5 | * |
| 6 | * This library is free software; you can redistribute it and/or | |
| 1c44468d LC |
7 | * modify it under the terms of the GNU Lesser General Public License |
| 8 | * as published by the Free Software Foundation; either version 3 of | |
| 9 | * the License, or (at your option) any later version. | |
| e7bca227 | 10 | * |
| 1c44468d LC |
11 | * This library is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| e7bca227 LC |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with this library; if not, write to the Free Software | |
| 1c44468d LC |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | * 02110-1301 USA | |
| e7bca227 LC |
20 | */ |
| 21 | ||
| 22 | /* Correct header inclusion. */ | |
| 23 | ||
| aec3d99b | 24 | #include "libguile/scmconfig.h" |
| e7bca227 | 25 | |
| aec3d99b | 26 | #ifdef SCM_USE_PTHREAD_THREADS |
| e7bca227 LC |
27 | |
| 28 | /* When pthreads are used, let `libgc' know about it and redirect allocation | |
| 29 | calls such as `GC_MALLOC ()' to (contention-free, faster) thread-local | |
| 30 | allocation. */ | |
| 31 | ||
| 32 | # define GC_THREADS 1 | |
| 33 | # define GC_REDIRECT_TO_LOCAL 1 | |
| 34 | ||
| 35 | #endif | |
| 36 | ||
| 37 | #include <gc/gc.h> | |
| ebd78213 | 38 | |
| 04f8c62c | 39 | #if (! ((defined GC_VERSION_MAJOR) && (GC_VERSION_MAJOR >= 7))) |
| ebd78213 LC |
40 | /* This was needed with `libgc' 6.x. */ |
| 41 | # include <gc/gc_local_alloc.h> | |
| 42 | #endif | |
| 43 | ||
| 44 | #if (defined GC_VERSION_MAJOR) && (GC_VERSION_MAJOR >= 7) | |
| 45 | /* This type was provided by `libgc' 6.x. */ | |
| 46 | typedef void *GC_PTR; | |
| 47 | #endif | |
| e7bca227 | 48 | |
| dbe4d258 | 49 | |
| dbe4d258 | 50 | /* Return true if PTR points to the heap. */ |
| 475461b7 LC |
51 | #define SCM_I_IS_POINTER_TO_THE_HEAP(ptr) \ |
| 52 | (GC_base (ptr) != NULL) | |
| dbe4d258 LC |
53 | |
| 54 | /* Register a disappearing link for the object pointed to by OBJ such that | |
| 55 | the pointer pointed to be LINK is cleared when OBJ is reclaimed. Do so | |
| 56 | only if OBJ actually points to the heap. See | |
| 57 | http://thread.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/2563 | |
| 58 | for details. */ | |
| 59 | #define SCM_I_REGISTER_DISAPPEARING_LINK(link, obj) \ | |
| 60 | ((SCM_I_IS_POINTER_TO_THE_HEAP (obj)) \ | |
| 61 | ? GC_GENERAL_REGISTER_DISAPPEARING_LINK ((link), (obj)) \ | |
| 62 | : 0) | |
| 63 | ||
| 64 | ||
| 1c44468d | 65 | #endif /* SCM_BDW_GC_H */ |