src/fcinit.c

   1 /*
   2  * $XFree86: xc/lib/fontconfig/src/fcinit.c,v 1.7 2002/08/22 07:36:44 keithp Exp $
   3  *
   4  * Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
   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  * Reread the configuration and available font lists
 112  */
 113 FcBool
 114 FcInitReinitialize (void)
 115 {
 116     FcConfig    *config;
 117
 118     config = FcInitLoadConfigAndFonts ();
 119     if (!config)
 120         return FcFalse;
 121     FcConfigSetCurrent (config);
 122     return FcTrue;
 123 }
 124
 125 FcBool
 126 FcInitBringUptoDate (void)
 127 {
 128     FcConfig    *config = FcConfigGetCurrent ();
 129     time_t      now;
 130
 131     /*
 132      * rescanInterval == 0 disables automatic up to date
 133      */
 134     if (config->rescanInterval == 0)
 135         return FcTrue;
 136     /*
 137      * Check no more often than rescanInterval seconds
 138      */
 139     now = time (0);
 140     if (config->rescanTime + config->rescanInterval - now > 0)
 141         return FcTrue;
 142     /*
 143      * If up to date, don't reload configuration
 144      */
 145     if (FcConfigUptoDate (0))
 146         return FcTrue;
 147     return FcInitReinitialize ();
 148 }
 149
 150 static struct {
 151     char    *name;
 152     int     alloc_count;
 153     int     alloc_mem;
 154     int     free_count;
 155     int     free_mem;
 156 } FcInUse[FC_MEM_NUM] = {
 157     { "charset" },
 158     { "charleaf" },
 159     { "fontset" },
 160     { "fontptr" },
 161     { "objectset" },
 162     { "objectptr" },
 163     { "matrix" },
 164     { "pattern" },
 165     { "patelt" },
 166     { "vallist" },
 167     { "substate" },
 168     { "string" },
 169     { "listbuck" },
 170     { "strset" },
 171     { "strlist" },
 172     { "config" },
 173     { "langset" },
 174     { "atomic" },
 175     { "blanks" },
 176     { "cache" },
 177     { "strbuf" },
 178     { "subst" },
 179     { "objecttype" },
 180     { "constant" },
 181     { "test" },
 182     { "expr" },
 183     { "vstack" },
 184     { "attr" },
 185     { "pstack" },
 186 };
 187
 188 static int  FcAllocCount, FcAllocMem;
 189 static int  FcFreeCount, FcFreeMem;
 190
 191 static int  FcMemNotice = 1*1024*1024;
 192
 193 static int  FcAllocNotify, FcFreeNotify;
 194
 195 void
 196 FcValueListReport (void);
 197
 198 void
 199 FcMemReport (void)
 200 {
 201     int i;
 202     printf ("Fc Memory Usage:\n");
 203     printf ("\t   Which       Alloc           Free           Active\n");
 204     printf ("\t           count   bytes   count   bytes   count   bytes\n");
 205     for (i = 0; i < FC_MEM_NUM; i++)
 206         printf ("\t%8.8s%8d%8d%8d%8d%8d%8d\n",
 207                 FcInUse[i].name,
 208                 FcInUse[i].alloc_count, FcInUse[i].alloc_mem,
 209                 FcInUse[i].free_count, FcInUse[i].free_mem,
 210                 FcInUse[i].alloc_count - FcInUse[i].free_count,
 211                 FcInUse[i].alloc_mem - FcInUse[i].free_mem);
 212     printf ("\t%8.8s%8d%8d%8d%8d%8d%8d\n",
 213             "Total",
 214             FcAllocCount, FcAllocMem,
 215             FcFreeCount, FcFreeMem,
 216             FcAllocCount - FcFreeCount,
 217             FcAllocMem - FcFreeMem);
 218     FcAllocNotify = 0;
 219     FcFreeNotify = 0;
 220     FcValueListReport ();
 221 }
 222
 223 void
 224 FcMemAlloc (int kind, int size)
 225 {
 226     if (FcDebug() & FC_DBG_MEMORY)
 227     {
 228         FcInUse[kind].alloc_count++;
 229         FcInUse[kind].alloc_mem += size;
 230         FcAllocCount++;
 231         FcAllocMem += size;
 232         FcAllocNotify += size;
 233         if (FcAllocNotify > FcMemNotice)
 234             FcMemReport ();
 235     }
 236 }
 237
 238 void
 239 FcMemFree (int kind, int size)
 240 {
 241     if (FcDebug() & FC_DBG_MEMORY)
 242     {
 243         FcInUse[kind].free_count++;
 244         FcInUse[kind].free_mem += size;
 245         FcFreeCount++;
 246         FcFreeMem += size;
 247         FcFreeNotify += size;
 248         if (FcFreeNotify > FcMemNotice)
 249             FcMemReport ();
 250     }
 251 }