1 /** 2 * @copyright 3 * ==================================================================== 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 * ==================================================================== 21 * @endcopyright 22 * 23 * @file svn_cache_config.h 24 * @brief Configuration interface to internal Subversion caches. 25 */ 26 27 #ifndef SVN_CACHE_CONFIG_H 28 #define SVN_CACHE_CONFIG_H 29 30 #include <apr.h> 31 #include "svn_types.h" 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif /* __cplusplus */ 36 37 /** @defgroup svn_fs_cache_config caching configuration 38 * @{ 39 * @since New in 1.7. */ 40 41 /** Cache resource settings. It controls what caches, in what size and 42 how they will be created. The settings apply for the whole process. 43 44 @since New in 1.7. 45 */ 46 typedef struct svn_cache_config_t 47 { 48 /** total cache size in bytes. Please note that this is only soft limit 49 to the total application memory usage and will be exceeded due to 50 temporary objects and other program state. 51 May be 0, resulting in default caching code being used. */ 52 apr_uint64_t cache_size; 53 54 /** maximum number of files kept open */ 55 apr_size_t file_handle_count; 56 57 /** is this application guaranteed to be single-threaded? */ 58 svn_boolean_t single_threaded; 59 } svn_cache_config_t; 60 61 /** Get the current cache configuration. If it has not been set, 62 this function will return the default settings. 63 64 @since New in 1.7. 65 */ 66 const svn_cache_config_t * 67 svn_cache_config_get(void); 68 69 /** Set the cache configuration. Please note that it may not change 70 the actual configuration *in use*. Therefore, call it before reading 71 data from any repo and call it only once. 72 73 This function is not thread-safe. Therefore, it should be called 74 from the processes' initialization code only. 75 76 @since New in 1.7. 77 */ 78 void 79 svn_cache_config_set(const svn_cache_config_t *settings); 80 81 /** @} */ 82 83 /** @} */ 84 85 86 #ifdef __cplusplus 87 } 88 #endif /* __cplusplus */ 89 90 #endif /* SVN_CACHE_CONFIG_H */ 91