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- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2000-2003 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
-
- #ifndef APR_RMM_H
- #define APR_RMM_H
- /**
- * @file apr_rmm.h
- * @brief APR-UTIL Relocatable Memory Management Routines
- */
- /**
- * @defgroup APR_Util_RMM Relocatable Memory Management Routines
- * @ingroup APR_Util
- * @{
- */
-
- #include "apr.h"
- #include "apr_pools.h"
- #include "apr_errno.h"
- #include "apu.h"
- #include "apr_anylock.h"
-
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
-
- /** Structure to access Relocatable, Managed Memory */
- typedef struct apr_rmm_t apr_rmm_t;
-
- /** Fundemental allocation unit, within a spcific apr_rmm_off_t */
- typedef apr_size_t apr_rmm_off_t;
-
- /**
- * Initialize a relocatable memory block to be managed by the apr_rmm API.
- * @param rmm The relocatable memory block
- * @param lock An apr_anylock_t of the appropriate type of lock
- * @param membuf The block of relocateable memory to be managed
- * @param memsize The size of relocateable memory block to be managed
- * @param cont The pool to use for local storage and management
- */
- APU_DECLARE(apr_status_t) apr_rmm_init(apr_rmm_t **rmm, apr_anylock_t *lock,
- void* membuf, apr_size_t memsize,
- apr_pool_t *cont);
-
- /**
- * Destroy a managed memory block.
- * @param rmm The relocatable memory block to destroy
- */
- APU_DECLARE(apr_status_t) apr_rmm_destroy(apr_rmm_t *rmm);
-
- /**
- * Attach to a relocatable memory block already managed by the apr_rmm API.
- * @param rmm The relocatable memory block
- * @param lock An apr_anylock_t of the appropriate type of lock
- * @param membuf The block of relocateable memory already under management
- * @param cont The pool to use for local storage and management
- */
- APU_DECLARE(apr_status_t) apr_rmm_attach(apr_rmm_t **rmm, apr_anylock_t *lock,
- void* membuf, apr_pool_t *cont);
-
- /**
- * Detach from the managed block of memory.
- * @param rmm The relocatable memory block to detach from
- */
- APU_DECLARE(apr_status_t) apr_rmm_detach(apr_rmm_t *rmm);
-
- /**
- * Allocate memory from the block of relocatable memory.
- * @param rmm The relocatable memory block
- * @param reqsize How much memory to allocate
- */
- APU_DECLARE(apr_rmm_off_t) apr_rmm_malloc(apr_rmm_t *rmm, apr_size_t reqsize);
-
- /**
- * Realloc memory from the block of relocatable memory.
- * @param rmm The relocatable memory block
- * @param entity The memory allocation to realloc
- * @param reqsize The new size
- */
- APU_DECLARE(apr_rmm_off_t) apr_rmm_realloc(apr_rmm_t *rmm, void *entity, apr_size_t reqsize);
-
- /**
- * Allocate memory from the block of relocatable memory and initialize it to zero.
- * @param rmm The relocatable memory block
- * @param reqsize How much memory to allocate
- */
- APU_DECLARE(apr_rmm_off_t) apr_rmm_calloc(apr_rmm_t *rmm, apr_size_t reqsize);
-
- /**
- * Free allocation returned by apr_rmm_malloc or apr_rmm_calloc.
- * @param rmm The relocatable memory block
- * @param entity The memory allocation to free
- */
- APU_DECLARE(apr_status_t) apr_rmm_free(apr_rmm_t *rmm, apr_rmm_off_t entity);
-
- /**
- * Retrieve the physical address of a relocatable allocation of memory
- * @param rmm The relocatable memory block
- * @param entity The memory allocation to free
- */
- APU_DECLARE(void *) apr_rmm_addr_get(apr_rmm_t *rmm, apr_rmm_off_t entity);
-
- /**
- * Compute the offset of a relocatable allocation of memory
- * @param rmm The relocatable memory block
- * @param entity The physical address to convert to an offset
- */
- APU_DECLARE(apr_rmm_off_t) apr_rmm_offset_get(apr_rmm_t *rmm, void* entity);
-
- /**
- * Compute the required overallocation of memory needed to fit n allocs
- * @param n The number of alloc/calloc regions desired
- */
- APU_DECLARE(apr_size_t) apr_rmm_overhead_get(int n);
-
- #ifdef __cplusplus
- }
- #endif
- /** @} */
- #endif /* ! APR_RMM_H */
-
-