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 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 /* structural flags */
  29 #define MPDM_STRING     0x00000001      /* data can be string-compared */
  30 #define MPDM_MULTIPLE   0x00000002      /* data is multiple */
  31 #define MPDM_FREE       0x00000004      /* free data at destroy */
  32 #define MPDM_DELETED    0x00000008      /* value is deleted */
  33
  34 #define MPDM_IVAL       0x00000010      /* integer value cached in .ival */
  35 #define MPDM_RVAL       0x00000020      /* real value cached in .rval */
  36
  37 /* 'informative' flags */
  38 #define MPDM_HASH       0x00010000      /* data is a hash */
  39 #define MPDM_FILE       0x00020000      /* data is a FILE * */
  40 #define MPDM_EXEC       0x00040000      /* data is 'executable' */
  41
  42 /* mpdm values */
  43 typedef struct mpdm_val *mpdm_t;
  44
  45 /* a value */
  46 struct mpdm_val {
  47         int flags;              /* value flags */
  48         int ref;                /* reference count */
  49         int size;               /* data size */
  50         const void *data;       /* the real data */
  51         int ival;               /* cached integer value */
  52         double rval;            /* cache real value */
  53         mpdm_t prev;            /* prev in chain */
  54         mpdm_t next;            /* next in chain */
  55 };
  56
  57
  58 /* the main control structure */
  59 struct mpdm_control {
  60         mpdm_t root;            /* the root hash */
  61         mpdm_t cur;             /* current value (circular list) */
  62         mpdm_t del;             /* list of deleted values */
  63
  64         int count;              /* total count of values */
  65         int low_threshold;      /* minimum number of values to start sweeping */
  66         int default_sweep;      /* default swept values on mpdm_sweep(0) */
  67         int memory_usage;       /* approximate total memory used */
  68         int hash_buckets;       /* default hash buckets */
  69 };
  70
  71 extern struct mpdm_control *mpdm;
  72
  73 mpdm_t mpdm_new(int flags, const void *data, int size);
  74 mpdm_t mpdm_ref(mpdm_t v);
  75 mpdm_t mpdm_unref(mpdm_t v);
  76 int mpdm_destroy(mpdm_t v);
  77 void mpdm_sweep(int count);
  78
  79 int mpdm_size(const mpdm_t v);
  80 mpdm_t mpdm_clone(const mpdm_t v);
  81 mpdm_t mpdm_root(void);
  82
  83 mpdm_t mpdm_exec(mpdm_t c, mpdm_t args);
  84 mpdm_t mpdm_exec_1(mpdm_t c, mpdm_t a1);
  85 mpdm_t mpdm_exec_2(mpdm_t c, mpdm_t a1, mpdm_t a2);
  86 mpdm_t mpdm_exec_3(mpdm_t c, mpdm_t a1, mpdm_t a2, mpdm_t a3);
  87
  88 mpdm_t mpdm_new_a(int flags, int size);
  89 mpdm_t mpdm_aclone(const mpdm_t v);
  90
  91 mpdm_t mpdm_expand(mpdm_t a, int offset, int num);
  92 mpdm_t mpdm_collapse(mpdm_t a, int offset, int num);
  93 mpdm_t mpdm_aset(mpdm_t a, mpdm_t e, int offset);
  94 mpdm_t mpdm_aget(const mpdm_t a, int offset);
  95 mpdm_t mpdm_ins(mpdm_t a, mpdm_t e, int offset);
  96 mpdm_t mpdm_adel(mpdm_t a, int offset);
  97 mpdm_t mpdm_shift(mpdm_t a);
  98 mpdm_t mpdm_push(mpdm_t a, mpdm_t e);
  99 mpdm_t mpdm_pop(mpdm_t a);
 100 mpdm_t mpdm_queue(mpdm_t a, mpdm_t e, int size);
 101 int mpdm_seek(const mpdm_t a, const mpdm_t k, int step);
 102 int mpdm_seek_s(const mpdm_t a, const wchar_t * k, int step);
 103 int mpdm_bseek(const mpdm_t a, const mpdm_t k, int step, int *pos);
 104 int mpdm_bseek_s(const mpdm_t a, const wchar_t * k, int step, int *pos);
 105 mpdm_t mpdm_sort(const mpdm_t a, int step);
 106 mpdm_t mpdm_sort_cb(const mpdm_t a, int step, mpdm_t asort_cb);
 107
 108 mpdm_t mpdm_split(const mpdm_t s, const mpdm_t a);
 109 mpdm_t mpdm_join(const mpdm_t s, const mpdm_t a);
 110
 111 void *mpdm_poke(void *dst, int *dsize, const void *org, int osize, int esize);
 112 wchar_t *mpdm_pokev(wchar_t * dst, int *dsize, const mpdm_t v);
 113 wchar_t *mpdm_mbstowcs(const char *str, int *s, int l);
 114 char *mpdm_wcstombs(const wchar_t * str, int *s);
 115 mpdm_t mpdm_new_wcs(int flags, const wchar_t * str, int size, int cpy);
 116 mpdm_t mpdm_new_mbstowcs(int flags, const char *str, int l);
 117 mpdm_t mpdm_new_wcstombs(int flags, const wchar_t * str);
 118 mpdm_t mpdm_new_i(int ival);
 119 mpdm_t mpdm_new_r(double rval);
 120 int mpdm_wcwidth(wchar_t c);
 121 mpdm_t mpdm_sprintf(const mpdm_t fmt, const mpdm_t args);
 122 mpdm_t mpdm_ulc(const mpdm_t s, int u);
 123 wchar_t *mpdm_string(const mpdm_t v);
 124 mpdm_t mpdm_splice(const mpdm_t v, const mpdm_t i, int offset, int del);
 125 mpdm_t mpdm_strcat(const mpdm_t s1, const mpdm_t s2);
 126 int mpdm_cmp(const mpdm_t v1, const mpdm_t v2);
 127 int mpdm_ival(mpdm_t v);
 128 double mpdm_rval(mpdm_t v);
 129 mpdm_t mpdm_set_ival(mpdm_t v, int ival);
 130 mpdm_t mpdm_set_rval(mpdm_t v, double rval);
 131
 132 mpdm_t mpdm_xnew(mpdm_t(*a1) (mpdm_t, mpdm_t), mpdm_t a2);
 133
 134 int mpdm_hsize(const mpdm_t h);
 135 mpdm_t mpdm_hget(const mpdm_t h, const mpdm_t k);
 136 mpdm_t mpdm_hget_s(const mpdm_t h, const wchar_t * k);
 137 int mpdm_exists(const mpdm_t h, const mpdm_t k);
 138 mpdm_t mpdm_hset(mpdm_t h, mpdm_t k, mpdm_t v);
 139 mpdm_t mpdm_hset_s(mpdm_t h, const wchar_t * k, mpdm_t v);
 140 mpdm_t mpdm_hdel(mpdm_t h, const mpdm_t k);
 141 mpdm_t mpdm_keys(const mpdm_t h);
 142
 143 mpdm_t mpdm_dumper(const mpdm_t v);
 144 void mpdm_dump(const mpdm_t v);
 145 void mpdm_dump_unref(void);
 146
 147 #define MPDM_SGET(r, k) mpdm_sget((r), MPDM_LS((k)))
 148 #define MPDM_SSET(r, k, v) mpdm_sset((r), MPDM_LS((k)), (v))
 149
 150 mpdm_t mpdm_sget(mpdm_t r, mpdm_t k);
 151 mpdm_t mpdm_sset(mpdm_t r, mpdm_t k, mpdm_t v);
 152
 153 int mpdm_write_wcs(FILE * f, const wchar_t * str);
 154 mpdm_t mpdm_new_f(FILE * f);
 155 mpdm_t mpdm_open(const mpdm_t filename, const mpdm_t mode);
 156 mpdm_t mpdm_close(mpdm_t fd);
 157 mpdm_t mpdm_read(const mpdm_t fd);
 158 int mpdm_write(const mpdm_t fd, const mpdm_t v);
 159 mpdm_t mpdm_getchar(const mpdm_t fd);
 160 mpdm_t mpdm_putchar(const mpdm_t fd, const mpdm_t c);
 161 int mpdm_fseek(const mpdm_t fd, long offset, int whence);
 162 long mpdm_ftell(const mpdm_t fd);
 163 FILE * mpdm_get_filehandle(const mpdm_t fd);
 164 int mpdm_encoding(mpdm_t charset);
 165 int mpdm_unlink(const mpdm_t filename);
 166 mpdm_t mpdm_stat(const mpdm_t filename);
 167 int mpdm_chmod(const mpdm_t filename, mpdm_t perms);
 168 int mpdm_chown(const mpdm_t filename, mpdm_t uid, mpdm_t gid);
 169 mpdm_t mpdm_glob(mpdm_t spec, mpdm_t base);
 170
 171 mpdm_t mpdm_popen(const mpdm_t prg, const mpdm_t mode);
 172 mpdm_t mpdm_pclose(mpdm_t fd);
 173
 174 extern int mpdm_regex_offset;
 175 extern int mpdm_regex_size;
 176 extern int mpdm_sregex_count;
 177
 178 mpdm_t mpdm_regex(mpdm_t r, const mpdm_t v, int offset);
 179 mpdm_t mpdm_sregex(mpdm_t r, const mpdm_t v, const mpdm_t s, int offset);
 180
 181 mpdm_t mpdm_gettext(const mpdm_t str);
 182 int mpdm_gettext_domain(const mpdm_t dom, const mpdm_t data);
 183
 184 mpdm_t mpdm_home_dir(void);
 185 mpdm_t mpdm_app_dir(void);
 186
 187 /* value type testing macros */
 188
 189 #define MPDM_IS_ARRAY(v)  ((v != NULL) && ((v)->flags) & MPDM_MULTIPLE)
 190 #define MPDM_IS_HASH(v)   ((v != NULL) && ((v)->flags) & MPDM_HASH)
 191 #define MPDM_IS_EXEC(v)   ((v != NULL) && ((v)->flags) & MPDM_EXEC)
 192 #define MPDM_IS_STRING(v) ((v != NULL) && ((v)->flags) & MPDM_STRING)
 193
 194 /* value creation utility macros */
 195
 196 #define MPDM_A(n)       mpdm_new_a(0,n)
 197 #define MPDM_H(n)       mpdm_new_a(MPDM_HASH|MPDM_IVAL,n)
 198 #define MPDM_LS(s)      mpdm_new_wcs(0, s, -1, 0)
 199 #define MPDM_S(s)       mpdm_new_wcs(0, s, -1, 1)
 200 #define MPDM_NS(s,n)    mpdm_new_wcs(0, s, n, 1)
 201 #define MPDM_ENS(s,n)   mpdm_new(MPDM_STRING|MPDM_FREE, s, n)
 202
 203 #define MPDM_I(i)       mpdm_new_i((i))
 204 #define MPDM_R(r)       mpdm_new_r((r))
 205 #define MPDM_P(p)       mpdm_new(0,(void *)p, 0, NULL)
 206 #define MPDM_MBS(s)     mpdm_new_mbstowcs(0, s, -1)
 207 #define MPDM_NMBS(s,n)  mpdm_new_mbstowcs(0, s, n)
 208 #define MPDM_2MBS(s)    mpdm_new_wcstombs(0, s)
 209
 210 #define MPDM_X(f)       mpdm_new(MPDM_EXEC, (const void *)f, 0)
 211 #define MPDM_X2(f,b)    mpdm_xnew(f,b)
 212
 213 #define MPDM_F(f)       mpdm_new_f(f)
 214
 215 int mpdm_startup(void);
 216 void mpdm_shutdown(void);
 217
 218 #ifdef __cplusplus
 219 }
 220 #endif