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00001 /* Licensed to the Apache Software Foundation (ASF) under one or more 00002 * contributor license agreements. See the NOTICE file distributed with 00003 * this work for additional information regarding copyright ownership. 00004 * The ASF licenses this file to You under the Apache License, Version 2.0 00005 * (the "License"); you may not use this file except in compliance with 00006 * the License. You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #ifndef APR_ALLOCATOR_H 00018 #define APR_ALLOCATOR_H 00019 00025 #include "apr.h" 00026 #include "apr_errno.h" 00027 #define APR_WANT_MEMFUNC 00028 #include "apr_want.h" 00029 00030 #ifdef __cplusplus 00031 extern "C" { 00032 #endif 00033 00041 typedef struct apr_allocator_t apr_allocator_t; 00043 typedef struct apr_memnode_t apr_memnode_t; 00044 00054 struct apr_memnode_t { 00055 apr_memnode_t *next; 00056 apr_memnode_t **ref; 00057 apr_uint32_t index; 00058 apr_uint32_t free_index; 00059 char *first_avail; 00060 char *endp; 00061 }; 00062 00064 #define APR_MEMNODE_T_SIZE APR_ALIGN_DEFAULT(sizeof(apr_memnode_t)) 00065 00067 #define APR_ALLOCATOR_MAX_FREE_UNLIMITED 0 00068 00074 APR_DECLARE(apr_status_t) apr_allocator_create(apr_allocator_t **allocator) 00075 __attribute__((nonnull(1))); 00076 00083 APR_DECLARE(void) apr_allocator_destroy(apr_allocator_t *allocator) 00084 __attribute__((nonnull(1))); 00085 00092 APR_DECLARE(apr_memnode_t *) apr_allocator_alloc(apr_allocator_t *allocator, 00093 apr_size_t size) 00094 __attribute__((nonnull(1))); 00095 00103 APR_DECLARE(void) apr_allocator_free(apr_allocator_t *allocator, 00104 apr_memnode_t *memnode) 00105 __attribute__((nonnull(1,2))); 00106 00107 #include "apr_pools.h" 00108 00115 /* 00116 * XXX: see if we can come up with something a bit better. Currently 00117 * you can make a pool an owner, but if the pool doesn't use the allocator 00118 * the allocator will never be destroyed. 00119 */ 00120 APR_DECLARE(void) apr_allocator_owner_set(apr_allocator_t *allocator, 00121 apr_pool_t *pool) 00122 __attribute__((nonnull(1))); 00123 00128 APR_DECLARE(apr_pool_t *) apr_allocator_owner_get(apr_allocator_t *allocator) 00129 __attribute__((nonnull(1))); 00130 00137 APR_DECLARE(void) apr_allocator_max_free_set(apr_allocator_t *allocator, 00138 apr_size_t size) 00139 __attribute__((nonnull(1))); 00140 00141 #include "apr_thread_mutex.h" 00142 00143 #if APR_HAS_THREADS 00144 00149 APR_DECLARE(void) apr_allocator_mutex_set(apr_allocator_t *allocator, 00150 apr_thread_mutex_t *mutex) 00151 __attribute__((nonnull(1))); 00152 00157 APR_DECLARE(apr_thread_mutex_t *) apr_allocator_mutex_get( 00158 apr_allocator_t *allocator) 00159 __attribute__((nonnull(1))); 00160 00161 #endif /* APR_HAS_THREADS */ 00162 00165 #ifdef __cplusplus 00166 } 00167 #endif 00168 00169 #endif /* !APR_ALLOCATOR_H */