Mercurial > hg > xemacs-beta
annotate src/gc.h @ 5223:acc4a6c9f5f9
Remove the definition of Q_data from glyphs.c, fixing C++ build.
2010-06-01 Aidan Kehoe <kehoea@parhasard.net>
* glyphs.c (syms_of_glyphs):
Remove the definition of Q_data from this file, now it's in
general-slots.h. Problem picked up by a C++ build.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Tue, 01 Jun 2010 20:31:11 +0100 |
| parents | 6c6d78781d59 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 3092 | 1 /* New incremental garbage collector for XEmacs. |
| 2 Copyright (C) 2005 Marcus Crestani. | |
|
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3 Copyright (C) 2010 Ben Wing. |
| 3092 | 4 |
| 5 This file is part of XEmacs. | |
| 6 | |
| 7 XEmacs is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2, or (at your option) any | |
| 10 later version. | |
| 11 | |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with XEmacs; see the file COPYING. If not, write to | |
| 19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 Boston, MA 02111-1307, USA. */ | |
| 21 | |
| 22 /* Synched up with: Not in FSF. */ | |
| 23 | |
| 24 #ifndef INCLUDED_gc_h_ | |
| 25 #define INCLUDED_gc_h_ | |
| 26 | |
| 27 BEGIN_C_DECLS | |
| 28 | |
| 29 | |
| 30 #ifdef NEW_GC | |
| 31 /************************************************************************/ | |
| 32 /* Incremental Statistics */ | |
| 33 /************************************************************************/ | |
| 34 #ifdef ERROR_CHECK_GC | |
| 35 void gc_stat_print_stats (void); | |
| 36 void gc_stat_finalized (void); | |
| 37 void gc_stat_freed (void); | |
| 38 # define GC_STAT_FINALIZED gc_stat_finalized () | |
| 39 # define GC_STAT_FREED gc_stat_freed () | |
| 40 #else /* not ERROR_CHECK_GC */ | |
| 41 # define GC_STAT_FINALIZED | |
| 42 # define GC_STAT_FREED | |
| 43 #endif /* not ERROR_CHECK_GC */ | |
| 44 #endif /* not NEW_GC */ | |
| 45 | |
| 46 | |
| 47 /************************************************************************/ | |
| 48 /* Global Variables */ | |
| 49 /************************************************************************/ | |
| 50 /* Number of bytes of consing done since the last GC. */ | |
| 51 extern EMACS_INT consing_since_gc; | |
| 52 | |
| 53 /* Number of bytes of consing done since startup. */ | |
| 54 extern EMACS_UINT total_consing; | |
| 55 | |
| 56 /* Number of bytes of current allocated heap objects. */ | |
| 57 extern EMACS_INT total_gc_usage; | |
| 58 | |
| 59 /* If the above is set. */ | |
| 60 extern int total_gc_usage_set; | |
| 61 | |
| 62 /* Number of bytes of consing since gc before another gc should be done. */ | |
| 63 extern EMACS_INT gc_cons_threshold; | |
| 64 | |
| 65 /* Percentage of consing of total data size before another GC. */ | |
| 66 extern EMACS_INT gc_cons_percentage; | |
| 67 | |
| 68 #ifdef NEW_GC | |
| 69 /* Number of bytes of consing since gc before another cycle of the gc | |
| 70 should be done in incremental mode. */ | |
| 71 extern EMACS_INT gc_cons_incremental_threshold; | |
| 72 | |
| 73 /* Nonzero during gc */ | |
| 74 extern int gc_in_progress; | |
| 75 | |
| 76 /* Nonzero during write barrier */ | |
| 77 extern int write_barrier_enabled; | |
| 78 | |
| 79 /* Enable/disable incremental garbage collection during runtime. */ | |
| 80 extern int allow_incremental_gc; | |
| 81 #endif /* NEW_GC */ | |
| 82 | |
| 83 | |
| 84 /************************************************************************/ | |
| 85 /* Prototypes */ | |
| 86 /************************************************************************/ | |
| 87 | |
| 88 #ifndef MALLOC_OVERHEAD | |
|
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89 #ifndef SYSTEM_MALLOC |
| 3092 | 90 #define MALLOC_OVERHEAD 0 |
| 91 #elif defined (rcheck) | |
| 92 #define MALLOC_OVERHEAD 20 | |
| 93 #else | |
| 94 #define MALLOC_OVERHEAD 8 | |
| 95 #endif | |
| 96 #endif /* MALLOC_OVERHEAD */ | |
| 97 | |
| 98 #ifdef ERROR_CHECK_GC | |
| 99 #define GC_CHECK_LHEADER_INVARIANTS(lheader) do { \ | |
| 100 struct lrecord_header * GCLI_lh = (lheader); \ | |
| 101 assert (GCLI_lh != 0); \ | |
| 102 assert (GCLI_lh->type < (unsigned int) lrecord_type_count); \ | |
| 103 } while (0) | |
| 104 #else | |
| 105 #define GC_CHECK_LHEADER_INVARIANTS(lheader) | |
| 106 #endif | |
| 107 | |
| 108 void recompute_need_to_garbage_collect (void); | |
| 109 | |
|
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110 #ifdef DEBUG_XEMACS |
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111 #define KKCC_DEBUG_ARGS , level, pos |
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112 #define DECLARE_KKCC_DEBUG_ARGS , int level, int pos |
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113 #else |
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114 #define KKCC_DEBUG_ARGS |
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115 #define DECLARE_KKCC_DEBUG_ARGS |
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116 #endif |
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117 |
| 3092 | 118 |
| 119 /* KKCC mark algorithm. */ | |
|
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120 void kkcc_gc_stack_push_lisp_object (Lisp_Object obj DECLARE_KKCC_DEBUG_ARGS); |
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121 void kkcc_gc_stack_repush_dirty_object (Lisp_Object obj |
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122 DECLARE_KKCC_DEBUG_ARGS); |
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123 |
| 3092 | 124 #ifdef DEBUG_XEMACS |
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125 #define kkcc_gc_stack_push_lisp_object_0(obj) \ |
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126 kkcc_gc_stack_push_lisp_object (obj, 0, -1) |
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127 void kkcc_backtrace_1 (int size, int detailed); |
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128 void kkcc_short_backtrace (void); |
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129 void kkcc_detailed_backtrace (void); |
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130 void kkcc_short_backtrace_full (void); |
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131 void kkcc_detailed_backtrace_full (void); |
| 3092 | 132 #else |
|
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133 #define kkcc_gc_stack_push_lisp_object_0(obj) \ |
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134 kkcc_gc_stack_push_lisp_object (obj) |
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135 #define kkcc_detailed_backtrace() |
| 3092 | 136 #endif |
| 137 | |
| 138 #ifdef NEW_GC | |
| 139 | |
| 140 /* Repush objects that are caught by the write barrier. */ | |
|
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141 #ifdef DEBUG_XEMACS |
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142 #define gc_write_barrier(obj) kkcc_gc_stack_repush_dirty_object (obj, 0, -2) |
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143 #else |
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144 #define gc_write_barrier(obj) kkcc_gc_stack_repush_dirty_object (obj) |
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145 #endif |
| 3092 | 146 |
| 147 /* GC functions: */ | |
| 148 | |
| 149 /* Perform a full garbage collection without interruption. If an | |
| 150 incremental garbage collection is already running it is completed | |
| 151 without further interruption. This function calls gc() with a | |
| 152 negative or zero argument. */ | |
| 153 void gc_full (void); | |
| 154 | |
| 155 /* This function starts an incremental garbage collection. If an | |
| 156 incremental garbage collection is already running, the next cycle | |
| 157 of traversal work is done, or the garbage collection is completed | |
| 158 when no more traversal work has to be done. This function calls gc | |
| 159 with a positive argument, indicating how many objects can be | |
| 160 traversed in this cycle. */ | |
| 161 void gc_incremental (void); | |
| 162 #endif /* NEW_GC */ | |
| 163 | |
| 164 /* Initializers */ | |
| 165 void init_gc_early (void); | |
| 166 void reinit_gc_early (void); | |
| 167 void init_gc_once_early (void); | |
| 168 | |
| 169 void syms_of_gc (void); | |
| 170 void vars_of_gc (void); | |
| 171 void complex_vars_of_gc (void); | |
| 172 | |
| 173 #ifndef NEW_GC | |
| 174 /* Needed prototypes due to the garbage collector code move from | |
| 175 alloc.c to gc.c. */ | |
| 176 void gc_sweep_1 (void); | |
| 177 | |
| 178 extern void *breathing_space; | |
| 179 #endif /* not NEW_GC */ | |
| 180 | |
| 3263 | 181 #ifdef NEW_GC |
| 182 void add_finalizable_obj (Lisp_Object obj); | |
| 183 void register_for_finalization (void); | |
| 184 void run_finalizers (void); | |
| 185 #endif /* NEW_GC */ | |
| 186 | |
| 3092 | 187 END_C_DECLS |
| 188 | |
| 189 #endif /* INCLUDED_gc_h_ */ |