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/* 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_FS_REP_CACHE_H
#define SVN_LIBSVN_FS_FS_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 POOL for temporary allocations. */
svn_error_t *
svn_fs_fs__open_rep_cache(svn_fs_t *fs,
apr_pool_t *pool);
/* Close the rep cache database associated with FS. */
svn_error_t *
svn_fs_fs__close_rep_cache(svn_fs_t *fs);
/* Set *EXISTS to TRUE iff the rep-cache DB file exists. */
svn_error_t *
svn_fs_fs__exists_rep_cache(svn_boolean_t *exists,
svn_fs_t *fs, apr_pool_t *pool);
/* Iterate all representations currently in FS's cache. */
svn_error_t *
svn_fs_fs__walk_rep_reference(svn_fs_t *fs,
svn_revnum_t start,
svn_revnum_t end,
svn_error_t *(*walker)(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 *pool);
/* Return the representation REP in FS which has fulltext CHECKSUM.
REP is allocated in 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. */
svn_error_t *
svn_fs_fs__get_rep_reference(representation_t **rep,
svn_fs_t *fs,
svn_checksum_t *checksum,
apr_pool_t *pool);
/* Set the representation REP in FS, using REP->CHECKSUM.
Use 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_fs__set_rep_reference(svn_fs_t *fs,
representation_t *rep,
apr_pool_t *pool);
/* Delete from the cache all reps corresponding to revisions younger
than YOUNGEST. */
svn_error_t *
svn_fs_fs__del_rep_reference(svn_fs_t *fs,
svn_revnum_t youngest,
apr_pool_t *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_fs__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_FS_REP_CACHE_H */
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