52a3801208
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/*******************************************************************************
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/
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/ File: RealtimeAlloc.h
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/
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/ Description: Allocation from separate "pools" of memory. Those pools
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/ will be locked in RAM if realtime allocators are turned
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/ on in the BMediaRoster, so don't waste this memory unless
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/ it's needed. Also, the shared pool is a scarce resource,
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/ so it's better if you create your own pool for your own
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/ needs and leave the shared pool for BMediaNode instances
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/ and the needs of the Media Kit.
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/
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/ Copyright 1998-99, Be Incorporated, All Rights Reserved
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/
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*******************************************************************************/
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#if !defined(_REALTIME_ALLOC_H)
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#define _REALTIME_ALLOC_H
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#include <SupportDefs.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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typedef struct rtm_pool rtm_pool;
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/* If out_pool is NULL, the default pool will be created if it isn't already. */
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/* If the default pool is already created, it will return EALREADY. */
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#if defined(__cplusplus)
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_IMPEXP_MEDIA status_t rtm_create_pool(rtm_pool ** out_pool, size_t total_size, const char * name=NULL);
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#else
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_IMPEXP_MEDIA status_t rtm_create_pool(rtm_pool ** out_pool, size_t total_size, const char * name);
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#endif
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_IMPEXP_MEDIA status_t rtm_delete_pool(rtm_pool * pool);
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/* If NULL is passed for pool, the default pool is used (if created). */
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_IMPEXP_MEDIA void * rtm_alloc(rtm_pool * pool, size_t size);
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_IMPEXP_MEDIA status_t rtm_free(void * data);
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_IMPEXP_MEDIA status_t rtm_realloc(void ** data, size_t new_size);
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_IMPEXP_MEDIA status_t rtm_size_for(void * data);
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_IMPEXP_MEDIA status_t rtm_phys_size_for(void * data);
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/* Return the default pool, or NULL if not yet initialized */
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_IMPEXP_MEDIA rtm_pool * rtm_default_pool();
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#if defined(__cplusplus)
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}
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#endif
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#endif // _REALTIME_ALLOC_H
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