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 "fcint.h"
  26 #include <stdlib.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     if (!FcConfigAddCacheDir (config, (FcChar8 *) FC_CACHEDIR))
  39         goto bail1;
  40     return config;
  41
  42 bail1:
  43     FcConfigDestroy (config);
  44 bail0:
  45     return 0;
  46 }
  47
  48 int
  49 FcGetVersion (void)
  50 {
  51     return FC_VERSION;
  52 }
  53
  54 /*
  55  * Load the configuration files
  56  */
  57 FcConfig *
  58 FcInitLoadConfig (void)
  59 {
  60     FcConfig    *config;
  61
  62     FcInitDebug ();
  63     config = FcConfigCreate ();
  64     if (!config)
  65         return FcFalse;
  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     FcInitDebug ();
  85     if (!config)
  86         return 0;
  87     if (!FcConfigBuildFonts (config))
  88     {
  89         FcConfigDestroy (config);
  90         return 0;
  91     }
  92     return config;
  93 }
  94
  95 /*
  96  * Initialize the default library configuration
  97  */
  98 FcBool
  99 FcInit (void)
 100 {
 101     FcConfig    *config;
 102
 103     if (_fcConfig)
 104         return FcTrue;
 105     config = FcInitLoadConfigAndFonts ();
 106     if (!config)
 107         return FcTrue;
 108     FcConfigSetCurrent (config);
 109     if (FcDebug() & FC_DBG_MEMORY)
 110         FcMemReport ();
 111     return FcTrue;
 112 }
 113
 114 /*
 115  * Free all library-allocated data structures.
 116  */
 117 void
 118 FcFini (void)
 119 {
 120     if (_fcConfig)
 121         FcConfigDestroy (_fcConfig);
 122
 123     FcPatternFini ();
 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[16];
 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 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 }
 235
 236 void
 237 FcMemAlloc (int kind, int size)
 238 {
 239     if (FcDebug() & FC_DBG_MEMORY)
 240     {
 241         FcInUse[kind].alloc_count++;
 242         FcInUse[kind].alloc_mem += size;
 243         FcAllocCount++;
 244         FcAllocMem += size;
 245         FcAllocNotify += size;
 246         if (FcAllocNotify > FcMemNotice)
 247             FcMemReport ();
 248     }
 249 }
 250
 251 void
 252 FcMemFree (int kind, int size)
 253 {
 254     if (FcDebug() & FC_DBG_MEMORY)
 255     {
 256         FcInUse[kind].free_count++;
 257         FcInUse[kind].free_mem += size;
 258         FcFreeCount++;
 259         FcFreeMem += size;
 260         FcFreeNotify += size;
 261         if (FcFreeNotify > FcMemNotice)
 262             FcMemReport ();
 263     }
 264 }