Mercurial > hg > xemacs-beta
annotate src/gc.h @ 5044:e84a30b0e4a2
remove duplicative code in change_frame_size()
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-02-15 Ben Wing <ben@xemacs.org>
* frame.c (change_frame_size_1):
Simplify the logic in this function.
(1) Don't allow 0 as the value of height or width. The old code
that tried to allow this was totally broken, anyway, so obviously
this never happens any more.
(2) Don't duplicate the code in frame_conversion_internal() that
converts displayable pixel size to total pixel size -- just call
that function.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Mon, 15 Feb 2010 22:58:10 -0600 |
| parents | 80d74fed5399 |
| children | 6c6d78781d59 |
| rev | line source |
|---|---|
| 3092 | 1 /* New incremental garbage collector for XEmacs. |
| 2 Copyright (C) 2005 Marcus Crestani. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 /* Synched up with: Not in FSF. */ | |
| 22 | |
| 23 #ifndef INCLUDED_gc_h_ | |
| 24 #define INCLUDED_gc_h_ | |
| 25 | |
| 26 BEGIN_C_DECLS | |
| 27 | |
| 28 | |
| 29 #ifdef NEW_GC | |
| 30 /************************************************************************/ | |
| 31 /* Incremental Statistics */ | |
| 32 /************************************************************************/ | |
| 33 #ifdef ERROR_CHECK_GC | |
| 34 void gc_stat_print_stats (void); | |
| 35 void gc_stat_finalized (void); | |
| 36 void gc_stat_freed (void); | |
| 37 # define GC_STAT_FINALIZED gc_stat_finalized () | |
| 38 # define GC_STAT_FREED gc_stat_freed () | |
| 39 #else /* not ERROR_CHECK_GC */ | |
| 40 # define GC_STAT_FINALIZED | |
| 41 # define GC_STAT_FREED | |
| 42 #endif /* not ERROR_CHECK_GC */ | |
| 43 #endif /* not NEW_GC */ | |
| 44 | |
| 45 | |
| 46 /************************************************************************/ | |
| 47 /* Global Variables */ | |
| 48 /************************************************************************/ | |
| 49 /* Number of bytes of consing done since the last GC. */ | |
| 50 extern EMACS_INT consing_since_gc; | |
| 51 | |
| 52 /* Number of bytes of consing done since startup. */ | |
| 53 extern EMACS_UINT total_consing; | |
| 54 | |
| 55 /* Number of bytes of current allocated heap objects. */ | |
| 56 extern EMACS_INT total_gc_usage; | |
| 57 | |
| 58 /* If the above is set. */ | |
| 59 extern int total_gc_usage_set; | |
| 60 | |
| 61 /* Number of bytes of consing since gc before another gc should be done. */ | |
| 62 extern EMACS_INT gc_cons_threshold; | |
| 63 | |
| 64 /* Percentage of consing of total data size before another GC. */ | |
| 65 extern EMACS_INT gc_cons_percentage; | |
| 66 | |
| 67 #ifdef NEW_GC | |
| 68 /* Number of bytes of consing since gc before another cycle of the gc | |
| 69 should be done in incremental mode. */ | |
| 70 extern EMACS_INT gc_cons_incremental_threshold; | |
| 71 | |
| 72 /* Nonzero during gc */ | |
| 73 extern int gc_in_progress; | |
| 74 | |
| 75 /* Nonzero during write barrier */ | |
| 76 extern int write_barrier_enabled; | |
| 77 | |
| 78 /* Enable/disable incremental garbage collection during runtime. */ | |
| 79 extern int allow_incremental_gc; | |
| 80 #endif /* NEW_GC */ | |
| 81 | |
| 82 | |
| 83 /************************************************************************/ | |
| 84 /* Prototypes */ | |
| 85 /************************************************************************/ | |
| 86 | |
| 87 #ifndef MALLOC_OVERHEAD | |
|
4735
80d74fed5399
Remove "old" GNU malloc in src/malloc.c, and all references to it. Drop the
Jerry James <james@xemacs.org>
parents:
3313
diff
changeset
|
88 #ifndef SYSTEM_MALLOC |
| 3092 | 89 #define MALLOC_OVERHEAD 0 |
| 90 #elif defined (rcheck) | |
| 91 #define MALLOC_OVERHEAD 20 | |
| 92 #else | |
| 93 #define MALLOC_OVERHEAD 8 | |
| 94 #endif | |
| 95 #endif /* MALLOC_OVERHEAD */ | |
| 96 | |
| 97 #ifdef ERROR_CHECK_GC | |
| 98 #define GC_CHECK_LHEADER_INVARIANTS(lheader) do { \ | |
| 99 struct lrecord_header * GCLI_lh = (lheader); \ | |
| 100 assert (GCLI_lh != 0); \ | |
| 101 assert (GCLI_lh->type < (unsigned int) lrecord_type_count); \ | |
| 102 } while (0) | |
| 103 #else | |
| 104 #define GC_CHECK_LHEADER_INVARIANTS(lheader) | |
| 105 #endif | |
| 106 | |
| 107 void recompute_need_to_garbage_collect (void); | |
| 108 | |
| 109 | |
| 110 /* KKCC mark algorithm. */ | |
| 111 #ifdef DEBUG_XEMACS | |
| 112 void kkcc_gc_stack_push_lisp_object_1 (Lisp_Object obj, int level, int pos); | |
| 113 #define kkcc_gc_stack_push_lisp_object(obj, level, pos) \ | |
| 114 kkcc_gc_stack_push_lisp_object_1 (obj, level, pos) | |
| 115 void kkcc_gc_stack_repush_dirty_object_1 (Lisp_Object obj, int level, int pos); | |
| 116 #define kkcc_gc_stack_repush_dirty_object(obj) \ | |
| 117 kkcc_gc_stack_repush_dirty_object_1 (obj, 0, -2) | |
| 118 void kkcc_backtrace (void); | |
| 119 #else | |
| 120 void kkcc_gc_stack_push_lisp_object_1 (Lisp_Object obj); | |
| 121 #define kkcc_gc_stack_push_lisp_object(obj, level, pos) \ | |
| 122 kkcc_gc_stack_push_lisp_object_1 (obj) | |
| 123 void kkcc_gc_stack_repush_dirty_object_1 (Lisp_Object obj); | |
| 124 #define kkcc_gc_stack_repush_dirty_object(obj) \ | |
| 125 kkcc_gc_stack_repush_dirty_object_1 (obj) | |
| 126 #define kkcc_backtrace() | |
| 127 #endif | |
| 128 | |
| 129 #ifdef NEW_GC | |
| 130 | |
| 131 /* Repush objects that are caught by the write barrier. */ | |
| 132 #define gc_write_barrier(obj) kkcc_gc_stack_repush_dirty_object (obj); | |
| 133 | |
| 134 | |
| 135 /* GC functions: */ | |
| 136 | |
| 137 /* Perform a full garbage collection without interruption. If an | |
| 138 incremental garbage collection is already running it is completed | |
| 139 without further interruption. This function calls gc() with a | |
| 140 negative or zero argument. */ | |
| 141 void gc_full (void); | |
| 142 | |
| 143 /* This function starts an incremental garbage collection. If an | |
| 144 incremental garbage collection is already running, the next cycle | |
| 145 of traversal work is done, or the garbage collection is completed | |
| 146 when no more traversal work has to be done. This function calls gc | |
| 147 with a positive argument, indicating how many objects can be | |
| 148 traversed in this cycle. */ | |
| 149 void gc_incremental (void); | |
| 150 #endif /* NEW_GC */ | |
| 151 | |
| 152 /* Initializers */ | |
| 153 void init_gc_early (void); | |
| 154 void reinit_gc_early (void); | |
| 155 void init_gc_once_early (void); | |
| 156 | |
| 157 void syms_of_gc (void); | |
| 158 void vars_of_gc (void); | |
| 159 void complex_vars_of_gc (void); | |
| 160 | |
| 161 #ifndef NEW_GC | |
| 162 /* Needed prototypes due to the garbage collector code move from | |
| 163 alloc.c to gc.c. */ | |
| 164 void gc_sweep_1 (void); | |
| 165 | |
| 166 extern void *breathing_space; | |
| 167 #endif /* not NEW_GC */ | |
| 168 | |
| 3263 | 169 #ifdef NEW_GC |
| 170 void add_finalizable_obj (Lisp_Object obj); | |
| 171 void register_for_finalization (void); | |
| 172 void run_finalizers (void); | |
| 173 #endif /* NEW_GC */ | |
| 174 | |
| 3092 | 175 END_C_DECLS |
| 176 | |
| 177 #endif /* INCLUDED_gc_h_ */ |