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Diffstat (limited to 'subversion/libsvn_fs_x/rep-cache.h')
| -rw-r--r-- | subversion/libsvn_fs_x/rep-cache.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/subversion/libsvn_fs_x/rep-cache.h b/subversion/libsvn_fs_x/rep-cache.h new file mode 100644 index 0000000..1fe26da --- /dev/null +++ b/subversion/libsvn_fs_x/rep-cache.h @@ -0,0 +1,105 @@ +/* rep-cache.h : interface to rep cache db functions + * + * ==================================================================== + * 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. + * ==================================================================== + */ + +#ifndef SVN_LIBSVN_FS_X_REP_CACHE_H +#define SVN_LIBSVN_FS_X_REP_CACHE_H + +#include "svn_error.h" + +#include "fs.h" + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + + +#define REP_CACHE_DB_NAME "rep-cache.db" + +/* Open and create, if needed, the rep cache database associated with FS. + Use SCRATCH_POOL for temporary allocations. */ +svn_error_t * +svn_fs_x__open_rep_cache(svn_fs_t *fs, + apr_pool_t *scratch_pool); + +/* Set *EXISTS to TRUE iff the rep-cache DB file exists. */ +svn_error_t * +svn_fs_x__exists_rep_cache(svn_boolean_t *exists, + svn_fs_t *fs, + apr_pool_t *scratch_pool); + +/* Iterate all representations currently in FS's cache. */ +svn_error_t * +svn_fs_x__walk_rep_reference(svn_fs_t *fs, + svn_revnum_t start, + svn_revnum_t end, + svn_error_t *(*walker)(svn_fs_x__representation_t *rep, + void *walker_baton, + svn_fs_t *fs, + apr_pool_t *scratch_pool), + void *walker_baton, + svn_cancel_func_t cancel_func, + void *cancel_baton, + apr_pool_t *scratch_pool); + +/* Return the representation REP in FS which has fulltext CHECKSUM. + REP is allocated in RESULT_POOL. If the rep cache database has not been + opened, just set *REP to NULL. Returns SVN_ERR_FS_CORRUPT if a reference + beyond HEAD is detected. Uses SCRATCH_POOL for temporary allocations. */ +svn_error_t * +svn_fs_x__get_rep_reference(svn_fs_x__representation_t **rep, + svn_fs_t *fs, + svn_checksum_t *checksum, + apr_pool_t *result_pool, + apr_pool_t *scratch_pool); + +/* Set the representation REP in FS, using REP->CHECKSUM. + Use SCRATCH_POOL for temporary allocations. Returns SVN_ERR_FS_CORRUPT + if an existing reference beyond HEAD is detected. + + If the rep cache database has not been opened, this may be a no op. */ +svn_error_t * +svn_fs_x__set_rep_reference(svn_fs_t *fs, + svn_fs_x__representation_t *rep, + apr_pool_t *scratch_pool); + +/* Delete from the cache all reps corresponding to revisions younger + than YOUNGEST. */ +svn_error_t * +svn_fs_x__del_rep_reference(svn_fs_t *fs, + svn_revnum_t youngest, + apr_pool_t *scratch_pool); + + +/* Start a transaction to take an SQLite reserved lock that prevents + other writes, call BODY, end the transaction, and return what BODY returned. + */ +svn_error_t * +svn_fs_x__with_rep_cache_lock(svn_fs_t *fs, + svn_error_t *(*body)(void *baton, + apr_pool_t *pool), + void *baton, + apr_pool_t *pool); +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* SVN_LIBSVN_FS_X_REP_CACHE_H */ |