annotate src/elhash.h @ 801:2b676dc88c66

[xemacs-hg @ 2002-04-01 03:58:02 by ben] bug fixes (e.g. ballooning on X windows) Makefile.in.in: Try to make the Makefile notice if its source Makefile.in.in is changed, and regenerate and run itself. Use a bigger default SHEAP_ADJUSTMENT on Cygwin; otherwise you can't compile under Mule if a Lisp file has changed. (can't run temacs) TODO.ben-mule-21-5: update. mule/mule-cmds.el: Hash the result of mswindows-get-language-environment-from-locale, since it's very expensive (and causes huge ballooning of memory under X Windows, since it's called from x-get-resource). cl-extra.el, code-files.el, files.el, simple.el, subr.el, x-faces.el: Create new string-equal-ignore-case, based on built-in compare-strings -- compare strings ignoring case without the need to generate garbage by calling downcase. Use it in equalp and elsewhere. alloc.c, bytecode.c, chartab.c, data.c, elhash.c, emacs.c, eval.c, event-Xt.c, event-unixoid.c, extents.c, file-coding.c, fileio.c, fns.c, glyphs.c, gutter.c, lisp-union.h, lisp.h, mule-charset.c, nt.c, process-unix.c, process.c, specifier.c, symbols.c, sysdep.c, sysdep.h, text.c, toolbar.c: Try to implement GC triggering based on percentage of total memory usage. Not currently activated (percentage set to 0) because not quite working. Add `memory-usage' primitive to return XEmacs' idea of its memory usage. Add primitive compare-strings, compatible with FSF 21.1 -- can compare any part of two strings, optionally ignoring case. Improve qxe() functions in text.c for text comparison. Use RETURN_NOT_REACHED to try to avoid warnings about unreachable code. Add volatile_make_int() to fix warning in unix_send_process().
author ben
date Mon, 01 Apr 2002 03:59:04 +0000
parents e38acbeb1cae
children e22b0213b713
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1 /* Lisp interface to hash tables -- include file.
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2 Copyright (C) 1995, 1996 Ben Wing.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not in FSF. */
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22
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23 #ifndef INCLUDED_elhash_h_
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24 #define INCLUDED_elhash_h_
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25
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26 typedef struct Lisp_Hash_Table Lisp_Hash_Table;
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27
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28 DECLARE_LRECORD (hash_table, Lisp_Hash_Table);
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29
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30 #define XHASH_TABLE(x) XRECORD (x, hash_table, Lisp_Hash_Table)
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31 #define wrap_hash_table(p) wrap_record (p, hash_table)
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32 #define HASH_TABLEP(x) RECORDP (x, hash_table)
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33 #define CHECK_HASH_TABLE(x) CHECK_RECORD (x, hash_table)
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34 #define CONCHECK_HASH_TABLE(x) CONCHECK_RECORD (x, hash_table)
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35
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36 enum hash_table_weakness
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37 {
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38 HASH_TABLE_NON_WEAK,
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39 HASH_TABLE_KEY_WEAK,
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40 HASH_TABLE_VALUE_WEAK,
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41 HASH_TABLE_KEY_VALUE_WEAK,
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42 HASH_TABLE_KEY_CAR_WEAK,
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43 HASH_TABLE_VALUE_CAR_WEAK,
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44 HASH_TABLE_KEY_CAR_VALUE_WEAK,
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45 HASH_TABLE_WEAK
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46 };
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47
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48 enum hash_table_test
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49 {
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50 HASH_TABLE_EQ,
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51 HASH_TABLE_EQL,
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52 HASH_TABLE_EQUAL
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53 };
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54
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55 extern const struct lrecord_description hash_table_description[];
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56
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57 EXFUN (Fcopy_hash_table, 1);
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58 EXFUN (Fhash_table_count, 1);
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59 EXFUN (Fgethash, 3);
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60 EXFUN (Fputhash, 3);
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61 EXFUN (Fremhash, 2);
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62 EXFUN (Fclrhash, 1);
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63
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64 typedef int (*hash_table_test_function_t) (Lisp_Object obj1, Lisp_Object obj2);
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65 typedef unsigned long (*hash_table_hash_function_t) (Lisp_Object obj);
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66 typedef int (*maphash_function_t) (Lisp_Object key, Lisp_Object value,
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67 void* extra_arg);
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68
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69 Lisp_Object make_standard_lisp_hash_table (enum hash_table_test test,
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70 Elemcount size,
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71 double rehash_size,
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72 double rehash_threshold,
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73 enum hash_table_weakness weakness);
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74
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75 Lisp_Object make_general_lisp_hash_table (hash_table_hash_function_t hash_function,
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76 hash_table_test_function_t test_function,
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77 Elemcount size,
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78 double rehash_size,
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79 double rehash_threshold,
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80 enum hash_table_weakness weakness);
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81
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82 Lisp_Object make_lisp_hash_table (Elemcount size,
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83 enum hash_table_weakness weakness,
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84 enum hash_table_test test);
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85
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86 void elisp_maphash (maphash_function_t function,
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87 Lisp_Object hash_table, void *extra_arg);
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88
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89 void elisp_maphash_unsafe (maphash_function_t function,
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90 Lisp_Object hash_table, void *extra_arg);
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91
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92 void elisp_map_remhash (maphash_function_t predicate,
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93 Lisp_Object hash_table, void *extra_arg);
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94
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95 int finish_marking_weak_hash_tables (void);
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96 void prune_weak_hash_tables (void);
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97
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98 void pdump_reorganize_hash_table (Lisp_Object);
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99
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100 #endif /* INCLUDED_elhash_h_ */