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Diffstat (limited to 'rubbos/app/tomcat-connectors-1.2.32-src/native/common/jk_pool.h')
| -rw-r--r-- | rubbos/app/tomcat-connectors-1.2.32-src/native/common/jk_pool.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/rubbos/app/tomcat-connectors-1.2.32-src/native/common/jk_pool.h b/rubbos/app/tomcat-connectors-1.2.32-src/native/common/jk_pool.h new file mode 100644 index 00000000..b4c582df --- /dev/null +++ b/rubbos/app/tomcat-connectors-1.2.32-src/native/common/jk_pool.h @@ -0,0 +1,126 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/*************************************************************************** + * Description: Memory Pool object header file * + * Author: Gal Shachor <shachor@il.ibm.com> * + * Version: $Revision: 466585 $ * + ***************************************************************************/ +#ifndef _JK_POOL_H +#define _JK_POOL_H + +#include "jk_global.h" + +#ifdef __cplusplus +extern "C" +{ +#endif /* __cplusplus */ + +/** + * @file jk_pool.h + * @brief Jk memory allocation + * + * Similar with apr_pools, but completely unsynchronized. + * XXX use same names + * + */ + +/* + * The pool atom (basic pool alocation unit) is an 8 byte long. + * Each allocation (even for 1 byte) will return a round up to the + * number of atoms. + * + * This is to help in alignment of 32/64 bit machines ... + * G.S + */ +#ifdef WIN32 + typedef __int64 jk_pool_atom_t; +#elif defined(AIX) + typedef long long jk_pool_atom_t; +#elif defined(SOLARIS) + typedef long long jk_pool_atom_t; +#elif defined(LINUX) + typedef long long jk_pool_atom_t; +#elif defined(FREEBSD) + typedef long long jk_pool_atom_t; +#elif defined(OS2) + typedef long long jk_pool_atom_t; +#elif defined(NETWARE) + typedef long long jk_pool_atom_t; +#elif defined(HPUX11) + typedef long long jk_pool_atom_t; +#elif defined(IRIX) + typedef long long jk_pool_atom_t; +#elif defined(AS400) + typedef void *jk_pool_atom_t; +#else + typedef long long jk_pool_atom_t; +#endif + +/** + * Alignment macros + */ + +/* JK_ALIGN() is only to be used to align on a power of 2 boundary */ +#define JK_ALIGN(size, boundary) \ + (((size) + ((boundary) - 1)) & ~((boundary) - 1)) + +/** Default alignment */ +#ifdef AS400 +#define JK_ALIGN_DEFAULT(size) JK_ALIGN(size, 16) +#else +#define JK_ALIGN_DEFAULT(size) JK_ALIGN(size, 8) +#endif + +/* + * Pool size in number of pool atoms. + */ +#define TINY_POOL_SIZE 256 /* Tiny 1/4K atom pool. */ +#define SMALL_POOL_SIZE 512 /* Small 1/2K atom pool. */ +#define BIG_POOL_SIZE 2*SMALL_POOL_SIZE /* Bigger 1K atom pool. */ +#define HUGE_POOL_SIZE 2*BIG_POOL_SIZE /* Huge 2K atom pool. */ + +/** jk pool structure */ +struct jk_pool +{ + size_t size; + size_t pos; + char *buf; + size_t dyn_size; + size_t dyn_pos; + void **dynamic; +}; + +typedef struct jk_pool jk_pool_t; + +void jk_open_pool(jk_pool_t *p, jk_pool_atom_t *buf, size_t size); + +void jk_close_pool(jk_pool_t *p); + +void jk_reset_pool(jk_pool_t *p); + +void *jk_pool_alloc(jk_pool_t *p, size_t sz); + +void *jk_pool_realloc(jk_pool_t *p, + size_t sz, const void *old, size_t old_sz); + +void *jk_pool_strdup(jk_pool_t *p, const char *s); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ +#endif /* _JK_POOL_H */ |