src/fcinit.c

   1 /*
   2  * $XFree86: xc/lib/fontconfig/src/fcinit.c,v 1.5 2002/05/21 17:48:15 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     return FcTrue;
 106 }
 107
 108 /*
 109  * Reread the configuration and available font lists
 110  */
 111 FcBool
 112 FcInitReinitialize (void)
 113 {
 114     FcConfig    *config;
 115
 116     config = FcInitLoadConfigAndFonts ();
 117     if (!config)
 118         return FcFalse;
 119     FcConfigSetCurrent (config);
 120     return FcTrue;
 121 }
 122
 123 FcBool
 124 FcInitBringUptoDate (void)
 125 {
 126     FcConfig    *config = FcConfigGetCurrent ();
 127     time_t      now;
 128
 129     /*
 130      * rescanInterval == 0 disables automatic up to date
 131      */
 132     if (config->rescanInterval == 0)
 133         return FcTrue;
 134     /*
 135      * Check no more often than rescanInterval seconds
 136      */
 137     now = time (0);
 138     if (config->rescanTime + config->rescanInterval - now > 0)
 139         return FcTrue;
 140     /*
 141      * If up to date, don't reload configuration
 142      */
 143     if (FcConfigUptoDate (0))
 144         return FcTrue;
 145     return FcInitReinitialize ();
 146 }
 147
 148 static struct {
 149     char    *name;
 150     int     alloc_count;
 151     int     alloc_mem;
 152     int     free_count;
 153     int     free_mem;
 154 } FcInUse[FC_MEM_NUM] = {
 155     { "charset", 0, 0 },
 156     { "charnode", 0 ,0 },
 157     { "fontset", 0, 0 },
 158     { "fontptr", 0, 0 },
 159     { "objectset", 0, 0 },
 160     { "objectptr", 0, 0 },
 161     { "matrix", 0, 0 },
 162     { "pattern", 0, 0 },
 163     { "patelt", 0, 0 },
 164     { "vallist", 0, 0 },
 165     { "substate", 0, 0 },
 166     { "string", 0, 0 },
 167     { "listbuck", 0, 0 },
 168 };
 169
 170 static int  FcAllocCount, FcAllocMem;
 171 static int  FcFreeCount, FcFreeMem;
 172
 173 static int  FcMemNotice = 1*1024*1024;
 174
 175 static int  FcAllocNotify, FcFreeNotify;
 176
 177 void
 178 FcMemReport (void)
 179 {
 180     int i;
 181     printf ("Fc Memory Usage:\n");
 182     printf ("\t   Which       Alloc           Free           Active\n");
 183     printf ("\t           count   bytes   count   bytes   count   bytes\n");
 184     for (i = 0; i < FC_MEM_NUM; i++)
 185         printf ("\t%8.8s%8d%8d%8d%8d%8d%8d\n",
 186                 FcInUse[i].name,
 187                 FcInUse[i].alloc_count, FcInUse[i].alloc_mem,
 188                 FcInUse[i].free_count, FcInUse[i].free_mem,
 189                 FcInUse[i].alloc_count - FcInUse[i].free_count,
 190                 FcInUse[i].alloc_mem - FcInUse[i].free_mem);
 191     printf ("\t%8.8s%8d%8d%8d%8d%8d%8d\n",
 192             "Total",
 193             FcAllocCount, FcAllocMem,
 194             FcFreeCount, FcFreeMem,
 195             FcAllocCount - FcFreeCount,
 196             FcAllocMem - FcFreeMem);
 197     FcAllocNotify = 0;
 198     FcFreeNotify = 0;
 199 }
 200
 201 void
 202 FcMemAlloc (int kind, int size)
 203 {
 204     if (FcDebug() & FC_DBG_MEMORY)
 205     {
 206         FcInUse[kind].alloc_count++;
 207         FcInUse[kind].alloc_mem += size;
 208         FcAllocCount++;
 209         FcAllocMem += size;
 210         FcAllocNotify += size;
 211         if (FcAllocNotify > FcMemNotice)
 212             FcMemReport ();
 213     }
 214 }
 215
 216 void
 217 FcMemFree (int kind, int size)
 218 {
 219     if (FcDebug() & FC_DBG_MEMORY)
 220     {
 221         FcInUse[kind].free_count++;
 222         FcInUse[kind].free_mem += size;
 223         FcFreeCount++;
 224         FcFreeMem += size;
 225         FcFreeNotify += size;
 226         if (FcFreeNotify > FcMemNotice)
 227             FcMemReport ();
 228     }
 229 }