mpdm.h

   1 /*
   2
   3     MPDM - Minimum Profit Data Manager
   4     Copyright (C) 2003/2007 Angel Ortega <angel@triptico.com>
   5
   6     This program is free software; you can redistribute it and/or
   7     modify it under the terms of the GNU General Public License
   8     as published by the Free Software Foundation; either version 2
   9     of the License, or (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20     http://www.triptico.com
  21
  22 */
  23
  24 /* structural flags */
  25 #define MPDM_STRING     0x00000001      /* data can be string-compared */
  26 #define MPDM_MULTIPLE   0x00000002      /* data is multiple */
  27 #define MPDM_FREE       0x00000004      /* free data at destroy */
  28
  29 #define MPDM_IVAL       0x00000010      /* integer value cached in .ival */
  30 #define MPDM_RVAL       0x00000020      /* real value cached in .rval */
  31
  32 /* 'informative' flags */
  33 #define MPDM_HASH       0x00010000      /* data is a hash */
  34 #define MPDM_FILE       0x00020000      /* data is a FILE * */
  35 #define MPDM_EXEC       0x00040000      /* data is 'executable' */
  36
  37 /* mpdm values */
  38 typedef struct mpdm_val * mpdm_t;
  39
  40 /* a value */
  41 struct mpdm_val
  42 {
  43         int flags;      /* value flags */
  44         int ref;        /* reference count */
  45         int size;       /* data size */
  46         void * data;    /* the real data */
  47         int ival;       /* cached integer value */
  48         double rval;    /* cache real value */
  49         mpdm_t prev;    /* prev in chain */
  50         mpdm_t next;    /* next in chain */
  51 };
  52
  53
  54 /* the main control structure */
  55 struct mpdm_control
  56 {
  57         mpdm_t root;            /* the root hash */
  58         mpdm_t cur;             /* current value (circular list) */
  59         mpdm_t del;             /* list of deleted values */
  60
  61         int count;              /* total count of values */
  62         int low_threshold;      /* minimum number of values to start sweeping */
  63         int default_sweep;      /* default swept values on mpdm_sweep(0) */
  64         int memory_usage;       /* approximate total memory used */
  65         int hash_buckets;       /* default hash buckets */
  66 };
  67
  68 extern struct mpdm_control * mpdm;
  69
  70 mpdm_t mpdm_new(int flags, void * data, int size);
  71 mpdm_t mpdm_ref(mpdm_t v);
  72 mpdm_t mpdm_unref(mpdm_t v);
  73 int mpdm_destroy(mpdm_t v);
  74 void mpdm_sweep(int count);
  75
  76 int mpdm_size(mpdm_t v);
  77 mpdm_t mpdm_clone(mpdm_t v);
  78 mpdm_t mpdm_root(void);
  79
  80 mpdm_t mpdm_exec(mpdm_t c, mpdm_t args);
  81 mpdm_t mpdm_exec_1(mpdm_t c, mpdm_t a1);
  82 mpdm_t mpdm_exec_2(mpdm_t c, mpdm_t a1, mpdm_t a2);
  83 mpdm_t mpdm_exec_3(mpdm_t c, mpdm_t a1, mpdm_t a2, mpdm_t a3);
  84
  85 mpdm_t mpdm_new_a(int flags, int size);
  86 mpdm_t mpdm_aclone(mpdm_t v);
  87
  88 mpdm_t mpdm_expand(mpdm_t a, int offset, int num);
  89 mpdm_t mpdm_collapse(mpdm_t a, int offset, int num);
  90 mpdm_t mpdm_aset(mpdm_t a, mpdm_t e, int offset);
  91 mpdm_t mpdm_aget(mpdm_t a, int offset);
  92 mpdm_t mpdm_ins(mpdm_t a, mpdm_t e, int offset);
  93 mpdm_t mpdm_adel(mpdm_t a, int offset);
  94 mpdm_t mpdm_shift(mpdm_t a);
  95 mpdm_t mpdm_push(mpdm_t a, mpdm_t e);
  96 mpdm_t mpdm_pop(mpdm_t a);
  97 mpdm_t mpdm_queue(mpdm_t a, mpdm_t e, int size);
  98 int mpdm_seek(mpdm_t a, mpdm_t k, int step);
  99 int mpdm_seek_s(mpdm_t a, wchar_t * k, int step);
 100 int mpdm_bseek(mpdm_t a, mpdm_t k, int step, int * pos);
 101 int mpdm_bseek_s(mpdm_t a, wchar_t * k, int step, int * pos);
 102 mpdm_t mpdm_sort(mpdm_t a, int step);
 103 mpdm_t mpdm_sort_cb(mpdm_t a, int step, mpdm_t asort_cb);
 104
 105 mpdm_t mpdm_split(mpdm_t s, mpdm_t a);
 106 mpdm_t mpdm_join(mpdm_t s, mpdm_t a);
 107
 108 void * mpdm_poke(void * dst, int * dsize, void * org, int osize, int esize);
 109 wchar_t * mpdm_pokev(wchar_t * dst, int * dsize, mpdm_t v);
 110 wchar_t * mpdm_mbstowcs(char * str, int * s, int l);
 111 char * mpdm_wcstombs(wchar_t * str, int * s);
 112 mpdm_t mpdm_new_wcs(int flags, wchar_t * str, int size, int cpy);
 113 mpdm_t mpdm_new_mbstowcs(int flags, char * str, int l);
 114 mpdm_t mpdm_new_wcstombs(int flags, wchar_t * str);
 115 mpdm_t mpdm_new_i(int ival);
 116 mpdm_t mpdm_new_r(double rval);
 117 int mpdm_wcwidth(wchar_t c);
 118 mpdm_t mpdm_sprintf(mpdm_t fmt, mpdm_t args);
 119 mpdm_t mpdm_ulc(mpdm_t s, int u);
 120 wchar_t * mpdm_string(mpdm_t v);
 121 mpdm_t mpdm_splice(mpdm_t v, mpdm_t i, int offset, int del);
 122 mpdm_t mpdm_strcat(mpdm_t s1, mpdm_t s2);
 123 int mpdm_cmp(mpdm_t v1, mpdm_t v2);
 124 int mpdm_ival(mpdm_t v);
 125 double mpdm_rval(mpdm_t v);
 126
 127 mpdm_t mpdm_xnew(mpdm_t (* a1)(mpdm_t, mpdm_t), mpdm_t a2);
 128
 129 int mpdm_hsize(mpdm_t h);
 130 mpdm_t mpdm_hget(mpdm_t h, mpdm_t k);
 131 mpdm_t mpdm_hget_s(mpdm_t h, wchar_t * k);
 132 int mpdm_exists(mpdm_t h, mpdm_t k);
 133 mpdm_t mpdm_hset(mpdm_t h, mpdm_t k, mpdm_t v);
 134 mpdm_t mpdm_hset_s(mpdm_t h, wchar_t * k, mpdm_t v);
 135 mpdm_t mpdm_hdel(mpdm_t h, mpdm_t k);
 136 mpdm_t mpdm_keys(mpdm_t h);
 137
 138 mpdm_t mpdm_dumper(mpdm_t v);
 139 void mpdm_dump(mpdm_t v);
 140 void mpdm_dump_unref(void);
 141
 142 #define MPDM_SGET(r, k) mpdm_sget((r), MPDM_LS((k)))
 143 #define MPDM_SSET(r, k, v) mpdm_sset((r), MPDM_LS((k)), (v))
 144
 145 mpdm_t mpdm_sget(mpdm_t r, mpdm_t k);
 146 mpdm_t mpdm_sset(mpdm_t r, mpdm_t k, mpdm_t v);
 147
 148 int mpdm_write_wcs(FILE * f, wchar_t * str);
 149 mpdm_t mpdm_new_f(FILE * f);
 150 mpdm_t mpdm_open(mpdm_t filename, mpdm_t mode);
 151 mpdm_t mpdm_close(mpdm_t fd);
 152 mpdm_t mpdm_read(mpdm_t fd);
 153 int mpdm_write(mpdm_t fd, mpdm_t v);
 154 mpdm_t mpdm_getchar(mpdm_t fd);
 155 mpdm_t mpdm_putchar(mpdm_t fd, mpdm_t c);
 156 int mpdm_fseek(mpdm_t fd, long offset, int whence);
 157 long mpdm_ftell(mpdm_t fd);
 158 int mpdm_encoding(mpdm_t charset);
 159 int mpdm_unlink(mpdm_t filename);
 160 mpdm_t mpdm_stat(mpdm_t filename);
 161 int mpdm_chmod(mpdm_t filename, mpdm_t perms);
 162 int mpdm_chown(mpdm_t filename, mpdm_t uid, mpdm_t gid);
 163 mpdm_t mpdm_glob(mpdm_t spec);
 164
 165 mpdm_t mpdm_popen(mpdm_t prg, mpdm_t mode);
 166 mpdm_t mpdm_pclose(mpdm_t fd);
 167
 168 extern int mpdm_regex_offset;
 169 extern int mpdm_regex_size;
 170 extern int mpdm_sregex_count;
 171
 172 mpdm_t mpdm_regex(mpdm_t r, mpdm_t v, int offset);
 173 mpdm_t mpdm_sregex(mpdm_t r, mpdm_t v, mpdm_t s, int offset);
 174
 175 mpdm_t mpdm_gettext(mpdm_t str);
 176 int mpdm_gettext_domain(mpdm_t dom, mpdm_t data);
 177
 178 mpdm_t mpdm_home_dir(void);
 179 mpdm_t mpdm_app_dir(void);
 180
 181 /* value type testing macros */
 182
 183 #define MPDM_IS_ARRAY(v)  ((v != NULL) && ((v)->flags) & MPDM_MULTIPLE)
 184 #define MPDM_IS_HASH(v)   ((v != NULL) && ((v)->flags) & MPDM_HASH)
 185 #define MPDM_IS_EXEC(v)   ((v != NULL) && ((v)->flags) & MPDM_EXEC)
 186 #define MPDM_IS_STRING(v) ((v != NULL) && ((v)->flags) & MPDM_STRING)
 187
 188 /* value creation utility macros */
 189
 190 #define MPDM_A(n)       mpdm_new_a(0,n)
 191 #define MPDM_H(n)       mpdm_new_a(MPDM_HASH|MPDM_IVAL,n)
 192 #define MPDM_LS(s)      mpdm_new_wcs(0, s, -1, 0)
 193 #define MPDM_S(s)       mpdm_new_wcs(0, s, -1, 1)
 194 #define MPDM_NS(s,n)    mpdm_new_wcs(0, s, n, 1)
 195 #define MPDM_ENS(s,n)   mpdm_new(MPDM_STRING|MPDM_FREE, s, n)
 196
 197 #define MPDM_I(i)       mpdm_new_i((i))
 198 #define MPDM_R(r)       mpdm_new_r((r))
 199 #define MPDM_P(p)       mpdm_new(0,(void *)p, 0, NULL)
 200 #define MPDM_MBS(s)     mpdm_new_mbstowcs(0, s, -1)
 201 #define MPDM_NMBS(s,n)  mpdm_new_mbstowcs(0, s, n)
 202 #define MPDM_2MBS(s)    mpdm_new_wcstombs(0, s)
 203
 204 #define MPDM_X(f)       mpdm_new(MPDM_EXEC,f,0)
 205 #define MPDM_X2(f,b)    mpdm_xnew(f,b)
 206
 207 #define MPDM_F(f)       mpdm_new_f(f)
 208
 209 int mpdm_startup(void);
 210 void mpdm_shutdown(void);