code.delx.au - pulseaudio/blob - polyp/memblock.h

   1 #ifndef foomemblockhfoo
   2 #define foomemblockhfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of polypaudio.
   8
   9   polypaudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   polypaudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU General Public License
  20   along with polypaudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #include <sys/types.h>
  26 #include <inttypes.h>
  27
  28 enum pa_memblock_type { PA_MEMBLOCK_FIXED, PA_MEMBLOCK_APPENDED, PA_MEMBLOCK_DYNAMIC, PA_MEMBLOCK_USER };
  29
  30 struct pa_memblock_stat;
  31
  32 struct pa_memblock {
  33     enum pa_memblock_type type;
  34     unsigned ref;
  35     size_t length;
  36     void *data;
  37     void (*free_cb)(void *p);
  38     struct pa_memblock_stat *stat;
  39 };
  40
  41 struct pa_memblock *pa_memblock_new(size_t length, struct pa_memblock_stat*s);
  42 struct pa_memblock *pa_memblock_new_fixed(void *data, size_t length, struct pa_memblock_stat*s);
  43 struct pa_memblock *pa_memblock_new_dynamic(void *data, size_t length, struct pa_memblock_stat*s);
  44 struct pa_memblock *pa_memblock_new_user(void *data, size_t length, void (*free_cb)(void *p), struct pa_memblock_stat*s);
  45
  46 void pa_memblock_unref(struct pa_memblock*b);
  47 struct pa_memblock* pa_memblock_ref(struct pa_memblock*b);
  48
  49 void pa_memblock_unref_fixed(struct pa_memblock*b);
  50
  51 struct pa_memblock_stat {
  52     int ref;
  53     unsigned total;
  54     unsigned total_size;
  55     unsigned allocated;
  56     unsigned allocated_size;
  57 };
  58
  59 struct pa_memblock_stat* pa_memblock_stat_new(void);
  60 void pa_memblock_stat_unref(struct pa_memblock_stat *s);
  61 struct pa_memblock_stat * pa_memblock_stat_ref(struct pa_memblock_stat *s);
  62
  63 #endif