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 (!FcCacheRead(config))
  65         FcCacheForce(FcTrue);
  66
  67     if (!FcConfigParseAndLoad (config, 0, FcTrue))
  68     {
  69         FcConfigDestroy (config);
  70         return FcInitFallbackConfig ();
  71     }
  72
  73     return config;
  74 }
  75
  76 /*
  77  * Load the configuration files and scan for available fonts
  78  */
  79 FcConfig *
  80 FcInitLoadConfigAndFonts (void)
  81 {
  82     FcConfig    *config = FcInitLoadConfig ();
  83
  84     if (!config)
  85         return 0;
  86     if (!FcConfigBuildFonts (config))
  87     {
  88         FcConfigDestroy (config);
  89         return 0;
  90     }
  91     return config;
  92 }
  93
  94 /*
  95  * Initialize the default library configuration
  96  */
  97 FcBool
  98 FcInit (void)
  99 {
 100     FcConfig    *config;
 101
 102     if (_fcConfig)
 103         return FcTrue;
 104     config = FcInitLoadConfigAndFonts ();
 105     if (!config)
 106         return FcTrue;
 107     FcConfigSetCurrent (config);
 108     if (FcDebug() & FC_DBG_MEMORY)
 109         FcMemReport ();
 110     return FcTrue;
 111 }
 112
 113 /*
 114  * Free all library-allocated data structures.
 115  */
 116 void
 117 FcFini (void)
 118 {
 119     if (_fcConfig)
 120         FcConfigDestroy (_fcConfig);
 121
 122     FcPatternFini ();
 123     FcCharSetThawAll ();
 124 }
 125
 126 /*
 127  * Reread the configuration and available font lists
 128  */
 129 FcBool
 130 FcInitReinitialize (void)
 131 {
 132     FcConfig    *config;
 133
 134     config = FcInitLoadConfigAndFonts ();
 135     if (!config)
 136         return FcFalse;
 137     FcConfigSetCurrent (config);
 138     return FcTrue;
 139 }
 140
 141 FcBool
 142 FcInitBringUptoDate (void)
 143 {
 144     FcConfig    *config = FcConfigGetCurrent ();
 145     time_t      now;
 146
 147     /*
 148      * rescanInterval == 0 disables automatic up to date
 149      */
 150     if (config->rescanInterval == 0)
 151         return FcTrue;
 152     /*
 153      * Check no more often than rescanInterval seconds
 154      */
 155     now = time (0);
 156     if (config->rescanTime + config->rescanInterval - now > 0)
 157         return FcTrue;
 158     /*
 159      * If up to date, don't reload configuration
 160      */
 161     if (FcConfigUptoDate (0))
 162         return FcTrue;
 163     return FcInitReinitialize ();
 164 }
 165
 166 static struct {
 167     char    *name;
 168     int     alloc_count;
 169     int     alloc_mem;
 170     int     free_count;
 171     int     free_mem;
 172 } FcInUse[FC_MEM_NUM] = {
 173     { "charset" },
 174     { "charleaf" },
 175     { "fontset" },
 176     { "fontptr" },
 177     { "objectset" },
 178     { "objectptr" },
 179     { "matrix" },
 180     { "pattern" },
 181     { "patelt" },
 182     { "vallist" },
 183     { "substate" },
 184     { "string" },
 185     { "listbuck" },
 186     { "strset" },
 187     { "strlist" },
 188     { "config" },
 189     { "langset" },
 190     { "atomic" },
 191     { "blanks" },
 192     { "cache" },
 193     { "strbuf" },
 194     { "subst" },
 195     { "objecttype" },
 196     { "constant" },
 197     { "test" },
 198     { "expr" },
 199     { "vstack" },
 200     { "attr" },
 201     { "pstack" },
 202     { "staticstr" },
 203 };
 204
 205 static int  FcAllocCount, FcAllocMem;
 206 static int  FcFreeCount, FcFreeMem;
 207
 208 static int  FcMemNotice = 1*1024*1024;
 209
 210 static int  FcAllocNotify, FcFreeNotify;
 211
 212 void
 213 FcValueListReport (void);
 214
 215 void
 216 FcMemReport (void)
 217 {
 218     int i;
 219     printf ("Fc Memory Usage:\n");
 220     printf ("\t   Which       Alloc           Free           Active\n");
 221     printf ("\t           count   bytes   count   bytes   count   bytes\n");
 222     for (i = 0; i < FC_MEM_NUM; i++)
 223         printf ("%16.16s%8d%8d%8d%8d%8d%8d\n",
 224                 FcInUse[i].name,
 225                 FcInUse[i].alloc_count, FcInUse[i].alloc_mem,
 226                 FcInUse[i].free_count, FcInUse[i].free_mem,
 227                 FcInUse[i].alloc_count - FcInUse[i].free_count,
 228                 FcInUse[i].alloc_mem - FcInUse[i].free_mem);
 229     printf ("%16.16s%8d%8d%8d%8d%8d%8d\n",
 230             "Total",
 231             FcAllocCount, FcAllocMem,
 232             FcFreeCount, FcFreeMem,
 233             FcAllocCount - FcFreeCount,
 234             FcAllocMem - FcFreeMem);
 235     FcAllocNotify = 0;
 236     FcFreeNotify = 0;
 237     FcValueListReport ();
 238 }
 239
 240 void
 241 FcMemAlloc (int kind, int size)
 242 {
 243     if (FcDebug() & FC_DBG_MEMORY)
 244     {
 245         FcInUse[kind].alloc_count++;
 246         FcInUse[kind].alloc_mem += size;
 247         FcAllocCount++;
 248         FcAllocMem += size;
 249         FcAllocNotify += size;
 250         if (FcAllocNotify > FcMemNotice)
 251             FcMemReport ();
 252     }
 253 }
 254
 255 void
 256 FcMemFree (int kind, int size)
 257 {
 258     if (FcDebug() & FC_DBG_MEMORY)
 259     {
 260         FcInUse[kind].free_count++;
 261         FcInUse[kind].free_mem += size;
 262         FcFreeCount++;
 263         FcFreeMem += size;
 264         FcFreeNotify += size;
 265         if (FcFreeNotify > FcMemNotice)
 266             FcMemReport ();
 267     }
 268 }