ap_mm.h

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 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *    software must display the following acknowledgment:
 *    "This product includes software developed by the Apache Group
 *    for use in the Apache HTTP server project (http://www.apache.org/)."
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 *    endorse or promote products derived from this software without
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 *    [e-mail].
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 * 5. Products derived from this software may not be called "Apache"
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 *    "This product includes software developed by the Apache Group
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 *
 * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
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 * ====================================================================
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 * on public domain software written at the National Center for
 * Supercomputing Applications, University of Illinois, Urbana-Champaign.
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 */

/*
**
** ap_mm.h -- wrapper code for MM shared memory library
**
*/

#ifdef EAPI

#ifndef AP_MM_H 
#define AP_MM_H 1

#ifndef FALSE
#define FALSE 0
#define TRUE  !FALSE
#endif

API_EXPORT(int) ap_mm_useable(void);

typedef void AP_MM;
typedef enum { AP_MM_LOCK_RD, AP_MM_LOCK_RW } ap_mm_lock_mode;

/* Global Malloc-Replacement API */
API_EXPORT(int)     ap_MM_create(size_t size, char *file);
API_EXPORT(int)     ap_MM_permission(mode_t mode, uid_t owner, gid_t group);
API_EXPORT(void)    ap_MM_destroy(void);
API_EXPORT(int)     ap_MM_lock(ap_mm_lock_mode mode);
API_EXPORT(int)     ap_MM_unlock(void);
API_EXPORT(void *)  ap_MM_malloc(size_t size);
API_EXPORT(void *)  ap_MM_realloc(void *ptr, size_t size);
API_EXPORT(void)    ap_MM_free(void *ptr);
API_EXPORT(void *)  ap_MM_calloc(size_t number, size_t size);
API_EXPORT(char *)  ap_MM_strdup(const char *str);
API_EXPORT(size_t)  ap_MM_sizeof(void *ptr);
API_EXPORT(size_t)  ap_MM_maxsize(void);
API_EXPORT(size_t)  ap_MM_available(void);
API_EXPORT(char *)  ap_MM_error(void);

/* Standard Malloc-Style API */
API_EXPORT(AP_MM *) ap_mm_create(size_t size, char *file);
API_EXPORT(int)     ap_mm_permission(AP_MM *mm, mode_t mode, uid_t owner, gid_t group);
API_EXPORT(void)    ap_mm_destroy(AP_MM *mm);
API_EXPORT(int)     ap_mm_lock(AP_MM *mm, ap_mm_lock_mode mode);
API_EXPORT(int)     ap_mm_unlock(AP_MM *mm);
API_EXPORT(void *)  ap_mm_malloc(AP_MM *mm, size_t size);
API_EXPORT(void *)  ap_mm_realloc(AP_MM *mm, void *ptr, size_t size);
API_EXPORT(void)    ap_mm_free(AP_MM *mm, void *ptr);
API_EXPORT(void *)  ap_mm_calloc(AP_MM *mm, size_t number, size_t size);
API_EXPORT(char *)  ap_mm_strdup(AP_MM *mm, const char *str);
API_EXPORT(size_t)  ap_mm_sizeof(AP_MM *mm, void *ptr);
API_EXPORT(size_t)  ap_mm_maxsize(void);
API_EXPORT(size_t)  ap_mm_available(AP_MM *mm);
API_EXPORT(char *)  ap_mm_error(void);
API_EXPORT(void)    ap_mm_display_info(AP_MM *mm);

/* Low-Level Shared Memory API */
API_EXPORT(void *)  ap_mm_core_create(size_t size, char *file);
API_EXPORT(int)     ap_mm_core_permission(void *core, mode_t mode, uid_t owner, gid_t group);
API_EXPORT(void)    ap_mm_core_delete(void *core);
API_EXPORT(size_t)  ap_mm_core_size(void *core);
API_EXPORT(int)     ap_mm_core_lock(void *core, ap_mm_lock_mode mode);
API_EXPORT(int)     ap_mm_core_unlock(void *core);
API_EXPORT(size_t)  ap_mm_core_maxsegsize(void);
API_EXPORT(size_t)  ap_mm_core_align2page(size_t size);
API_EXPORT(size_t)  ap_mm_core_align2word(size_t size);

/* Internal Library API */
API_EXPORT(void)    ap_mm_lib_error_set(unsigned int, const char *str);
API_EXPORT(char *)  ap_mm_lib_error_get(void);
API_EXPORT(int)     ap_mm_lib_version(void);

#endif /* AP_MM_H */

#endif /* EAPI */