| 1 | #ifndef SCM_BDW_GC_H |
| 2 | #define SCM_BDW_GC_H |
| 3 | |
| 4 | /* Copyright (C) 2006, 2008, 2009, 2011, 2012, 2013, 2014 Free Software Foundation, Inc. |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 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. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 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 |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | * 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /* Correct header inclusion. */ |
| 23 | |
| 24 | #include "libguile/scmconfig.h" |
| 25 | |
| 26 | #if SCM_USE_PTHREAD_THREADS |
| 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 | /* Don't #define pthread routines to their GC_pthread counterparts. |
| 36 | Instead we will be careful inside Guile to use the GC_pthread |
| 37 | routines. */ |
| 38 | # define GC_NO_THREAD_REDIRECTS 1 |
| 39 | |
| 40 | #ifdef __MINGW32__ |
| 41 | /* Rely on pthreads-w32. */ |
| 42 | #define GC_WIN32_PTHREADS |
| 43 | #endif |
| 44 | |
| 45 | #endif |
| 46 | |
| 47 | #include <gc/gc.h> |
| 48 | |
| 49 | /* Return true if PTR points to the heap. */ |
| 50 | #define SCM_I_IS_POINTER_TO_THE_HEAP(ptr) \ |
| 51 | (GC_base (ptr) != NULL) |
| 52 | |
| 53 | /* Register a disappearing link for the object pointed to by OBJ such that |
| 54 | the pointer pointed to be LINK is cleared when OBJ is reclaimed. Do so |
| 55 | only if OBJ actually points to the heap. See |
| 56 | http://thread.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/2563 |
| 57 | for details. */ |
| 58 | #define SCM_I_REGISTER_DISAPPEARING_LINK(link, obj) \ |
| 59 | ((SCM_I_IS_POINTER_TO_THE_HEAP (obj)) \ |
| 60 | ? GC_GENERAL_REGISTER_DISAPPEARING_LINK ((link), (obj)) \ |
| 61 | : 0) |
| 62 | |
| 63 | |
| 64 | #endif /* SCM_BDW_GC_H */ |