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Diffstat (limited to 'src/polypcore/memblock.h')
-rw-r--r-- | src/polypcore/memblock.h | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/src/polypcore/memblock.h b/src/polypcore/memblock.h deleted file mode 100644 index 9471278a..00000000 --- a/src/polypcore/memblock.h +++ /dev/null @@ -1,86 +0,0 @@ -#ifndef foomemblockhfoo -#define foomemblockhfoo - -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - polypaudio is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#include <sys/types.h> -#include <inttypes.h> - -/* A pa_memblock is a reference counted memory block. Polypaudio - * passed references to pa_memblocks around instead of copying - * data. See pa_memchunk for a structure that describes parts of - * memory blocks. */ - -/* The type of memory this block points to */ -typedef enum pa_memblock_type { - PA_MEMBLOCK_FIXED, /* data is a pointer to fixed memory that needs not to be freed */ - PA_MEMBLOCK_APPENDED, /* The most common kind: the data is appended to the memory block */ - PA_MEMBLOCK_DYNAMIC, /* data is a pointer to some memory allocated with pa_xmalloc() */ - PA_MEMBLOCK_USER /* User supplied memory, to be freed with free_cb */ -} pa_memblock_type_t; - -/* A structure of keeping memory block statistics */ -/* Maintains statistics about memory blocks */ -typedef struct pa_memblock_stat { - int ref; - unsigned total; - unsigned total_size; - unsigned allocated; - unsigned allocated_size; -} pa_memblock_stat; - -typedef struct pa_memblock { - pa_memblock_type_t type; - unsigned ref; /* the reference counter */ - int read_only; /* boolean */ - size_t length; - void *data; - void (*free_cb)(void *p); /* If type == PA_MEMBLOCK_USER this points to a function for freeing this memory block */ - pa_memblock_stat *stat; -} pa_memblock; - -/* Allocate a new memory block of type PA_MEMBLOCK_APPENDED */ -pa_memblock *pa_memblock_new(size_t length, pa_memblock_stat*s); - -/* Allocate a new memory block of type PA_MEMBLOCK_DYNAMIC. The pointer data is to be maintained be the memory block */ -pa_memblock *pa_memblock_new_dynamic(void *data, size_t length, pa_memblock_stat*s); - -/* Allocate a new memory block of type PA_MEMBLOCK_FIXED */ -pa_memblock *pa_memblock_new_fixed(void *data, size_t length, int read_only, pa_memblock_stat*s); - -/* Allocate a new memory block of type PA_MEMBLOCK_USER */ -pa_memblock *pa_memblock_new_user(void *data, size_t length, void (*free_cb)(void *p), int read_only, pa_memblock_stat*s); - -void pa_memblock_unref(pa_memblock*b); -pa_memblock* pa_memblock_ref(pa_memblock*b); - -/* This special unref function has to be called by the owner of the -memory of a static memory block when he wants to release all -references to the memory. This causes the memory to be copied and -converted into a PA_MEMBLOCK_DYNAMIC type memory block */ -void pa_memblock_unref_fixed(pa_memblock*b); - -pa_memblock_stat* pa_memblock_stat_new(void); -void pa_memblock_stat_unref(pa_memblock_stat *s); -pa_memblock_stat * pa_memblock_stat_ref(pa_memblock_stat *s); - -#endif |