src/fcinit.c

   1 /*
   2  * $RCSId: xc/lib/fontconfig/src/fcinit.c,v 1.7 2002/08/22 07:36:44 keithp Exp $
   3  *
   4  * Copyright © 2001 Keith Packard
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software and its
   7  * documentation for any purpose is hereby granted without fee, provided that
   8  * the above copyright notice appear in all copies and that both that
   9  * copyright notice and this permission notice appear in supporting
  10  * documentation, and that the name of Keith Packard not be used in
  11  * advertising or publicity pertaining to distribution of the software without
  12  * specific, written prior permission.  Keith Packard makes no
  13  * representations about the suitability of this software for any purpose.  It
  14  * is provided "as is" without express or implied warranty.
  15  *
  16  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  18  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  19  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  20  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  21  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  22  * PERFORMANCE OF THIS SOFTWARE.
  23  */
  24
  25 #include <stdlib.h>
  26 #include "fcint.h"
  27
  28 static FcConfig *
  29 FcInitFallbackConfig (void)
  30 {
  31     FcConfig    *config;
  32
  33     config = FcConfigCreate ();
  34     if (!config)
  35         goto bail0;
  36     if (!FcConfigAddDir (config, (FcChar8 *) FC_DEFAULT_FONTS))
  37         goto bail1;
  38     return config;
  39
  40 bail1:
  41     FcConfigDestroy (config);
  42 bail0:
  43     return 0;
  44 }
  45
  46 int
  47 FcGetVersion (void)
  48 {
  49     return FC_VERSION;
  50 }
  51
  52 /*
  53  * Load the configuration files
  54  */
  55 FcConfig *
  56 FcInitLoadConfig (void)
  57 {
  58     FcConfig    *config;
  59
  60     config = FcConfigCreate ();
  61     if (!config)
  62         return FcFalse;
  63
  64     if (!FcConfigParseAndLoad (config, 0, FcTrue))
  65     {
  66         FcConfigDestroy (config);
  67         return FcInitFallbackConfig ();
  68     }
  69
  70     return config;
  71 }
  72
  73 /*
  74  * Load the configuration files and scan for available fonts
  75  */
  76 FcConfig *
  77 FcInitLoadConfigAndFonts (void)
  78 {
  79     FcConfig    *config = FcInitLoadConfig ();
  80
  81     if (!config)
  82         return 0;
  83     if (!FcConfigBuildFonts (config))
  84     {
  85         FcConfigDestroy (config);
  86         return 0;
  87     }
  88     return config;
  89 }
  90
  91 /*
  92  * Initialize the default library configuration
  93  */
  94 FcBool
  95 FcInit (void)
  96 {
  97     FcConfig    *config;
  98
  99     if (_fcConfig)
 100         return FcTrue;
 101     config = FcInitLoadConfigAndFonts ();
 102     if (!config)
 103         return FcTrue;
 104     FcConfigSetCurrent (config);
 105     if (FcDebug() & FC_DBG_MEMORY)
 106         FcMemReport ();
 107     return FcTrue;
 108 }
 109
 110 /*
 111  * Free all library-allocated data structures.
 112  */
 113 void
 114 FcFini (void)
 115 {
 116     if (_fcConfig)
 117         FcConfigDestroy (_fcConfig);
 118
 119     FcPatternThawAll ();
 120     FcCharSetThawAll ();
 121 }
 122
 123 /*
 124  * Reread the configuration and available font lists
 125  */
 126 FcBool
 127 FcInitReinitialize (void)
 128 {
 129     FcConfig    *config;
 130
 131     config = FcInitLoadConfigAndFonts ();
 132     if (!config)
 133         return FcFalse;
 134     FcConfigSetCurrent (config);
 135     return FcTrue;
 136 }
 137
 138 FcBool
 139 FcInitBringUptoDate (void)
 140 {
 141     FcConfig    *config = FcConfigGetCurrent ();
 142     time_t      now;
 143
 144     /*
 145      * rescanInterval == 0 disables automatic up to date
 146      */
 147     if (config->rescanInterval == 0)
 148         return FcTrue;
 149     /*
 150      * Check no more often than rescanInterval seconds
 151      */
 152     now = time (0);
 153     if (config->rescanTime + config->rescanInterval - now > 0)
 154         return FcTrue;
 155     /*
 156      * If up to date, don't reload configuration
 157      */
 158     if (FcConfigUptoDate (0))
 159         return FcTrue;
 160     return FcInitReinitialize ();
 161 }
 162
 163 static struct {
 164     char    *name;
 165     int     alloc_count;
 166     int     alloc_mem;
 167     int     free_count;
 168     int     free_mem;
 169 } FcInUse[FC_MEM_NUM] = {
 170     { "charset" },
 171     { "charleaf" },
 172     { "fontset" },
 173     { "fontptr" },
 174     { "objectset" },
 175     { "objectptr" },
 176     { "matrix" },
 177     { "pattern" },
 178     { "patelt" },
 179     { "vallist" },
 180     { "substate" },
 181     { "string" },
 182     { "listbuck" },
 183     { "strset" },
 184     { "strlist" },
 185     { "config" },
 186     { "langset" },
 187     { "atomic" },
 188     { "blanks" },
 189     { "cache" },
 190     { "strbuf" },
 191     { "subst" },
 192     { "objecttype" },
 193     { "constant" },
 194     { "test" },
 195     { "expr" },
 196     { "vstack" },
 197     { "attr" },
 198     { "pstack" },
 199     { "staticstr" },
 200 };
 201
 202 static int  FcAllocCount, FcAllocMem;
 203 static int  FcFreeCount, FcFreeMem;
 204
 205 static int  FcMemNotice = 1*1024*1024;
 206
 207 static int  FcAllocNotify, FcFreeNotify;
 208
 209 void
 210 FcValueListReport (void);
 211
 212 void
 213 FcMemReport (void)
 214 {
 215     int i;
 216     printf ("Fc Memory Usage:\n");
 217     printf ("\t   Which       Alloc           Free           Active\n");
 218     printf ("\t           count   bytes   count   bytes   count   bytes\n");
 219     for (i = 0; i < FC_MEM_NUM; i++)
 220         printf ("%16.16s%8d%8d%8d%8d%8d%8d\n",
 221                 FcInUse[i].name,
 222                 FcInUse[i].alloc_count, FcInUse[i].alloc_mem,
 223                 FcInUse[i].free_count, FcInUse[i].free_mem,
 224                 FcInUse[i].alloc_count - FcInUse[i].free_count,
 225                 FcInUse[i].alloc_mem - FcInUse[i].free_mem);
 226     printf ("%16.16s%8d%8d%8d%8d%8d%8d\n",
 227             "Total",
 228             FcAllocCount, FcAllocMem,
 229             FcFreeCount, FcFreeMem,
 230             FcAllocCount - FcFreeCount,
 231             FcAllocMem - FcFreeMem);
 232     FcAllocNotify = 0;
 233     FcFreeNotify = 0;
 234     FcValueListReport ();
 235 }
 236
 237 void
 238 FcMemAlloc (int kind, int size)
 239 {
 240     if (FcDebug() & FC_DBG_MEMORY)
 241     {
 242         FcInUse[kind].alloc_count++;
 243         FcInUse[kind].alloc_mem += size;
 244         FcAllocCount++;
 245         FcAllocMem += size;
 246         FcAllocNotify += size;
 247         if (FcAllocNotify > FcMemNotice)
 248             FcMemReport ();
 249     }
 250 }
 251
 252 void
 253 FcMemFree (int kind, int size)
 254 {
 255     if (FcDebug() & FC_DBG_MEMORY)
 256     {
 257         FcInUse[kind].free_count++;
 258         FcInUse[kind].free_mem += size;
 259         FcFreeCount++;
 260         FcFreeMem += size;
 261         FcFreeNotify += size;
 262         if (FcFreeNotify > FcMemNotice)
 263             FcMemReport ();
 264     }
 265 }