libbanshee/libcompat/regions.h

   1 /*
   2  * Copyright (c) 1999-2001
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  */
  30 #ifndef REGIONS_H
  31 #define REGIONS_H
  32
  33 #define RPAGELOG 13
  34
  35 typedef struct Region *region;
  36
  37 #include <stdlib.h>
  38
  39 void region_init(void); /* You MUST call this function before using any
  40                            part of this library */
  41
  42 region newregion(void);
  43 region newsubregion(region parent);
  44
  45 typedef int type_t;
  46 #define rctypeof(type) 0
  47
  48 /* Low-level alloc with dynamic type info */
  49 void *typed_ralloc(region r, size_t size, type_t type);
  50 void *typed_rarrayalloc(region r, size_t n, size_t size, type_t type);
  51 void *typed_rarrayextend(region r, void *old, size_t n, size_t size, type_t type);
  52 void typed_rarraycopy(void *to, void *from, size_t n, size_t size, type_t type);
  53
  54 #define ralloc(r, type) typed_ralloc((r), sizeof(type), rctypeof(type))
  55 #define rarrayalloc(r, n, type) typed_rarrayalloc((r), (n), sizeof(type), rctypeof(type))
  56 #define rarrayextend(r, old, n, type) typed_rarrayextend((r), (old), (n), sizeof(type), rctypeof(type))
  57 #define rarraycopy(to, from, n, type) typed_rarraycopy((to), (from), (n), sizeof(type), rctypeof(type))
  58
  59 char *rstralloc(region r, size_t size);
  60 char *rstralloc0(region r, size_t size);
  61 char *rstrdup(region r, const char *s);
  62
  63 /* rstrextend is used to extend an old string. The string MUST have been
  64    initially allocated by a call to rstrextend with old == NULL (you cannot
  65    initially allocate the string with rstralloc) */
  66 char *rstrextend(region r, const char *old, size_t newsize);
  67 char *rstrextend0(region r, const char *old, size_t newsize);
  68
  69 void deleteregion(region r);
  70 void deleteregion_ptr(region *r);
  71 void deleteregion_array(int n, region *regions);
  72 region regionof(void *ptr);
  73
  74 typedef void (*nomem_handler)(void);
  75 nomem_handler set_nomem_handler(nomem_handler newhandler);
  76
  77 /* Debugging support */
  78 void findrefs(region r, void *from, void *to);
  79 void findgrefs(region r);
  80 void findrrefs(region r, region from);
  81
  82 #ifdef REGION_PROFILE
  83 #include "profile.h"
  84 #endif
  85
  86 #endif