1 /* rep-cache.h : interface to rep cache db functions
3 * ====================================================================
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7 * regarding copyright ownership. The ASF licenses this file
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9 * "License"); you may not use this file except in compliance
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12 * http://www.apache.org/licenses/LICENSE-2.0
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20 * ====================================================================
23 #ifndef SVN_LIBSVN_FS_X_REP_CACHE_H
24 #define SVN_LIBSVN_FS_X_REP_CACHE_H
26 #include "svn_error.h"
32 #endif /* __cplusplus */
35 #define REP_CACHE_DB_NAME "rep-cache.db"
37 /* Open and create, if needed, the rep cache database associated with FS.
38 Use SCRATCH_POOL for temporary allocations. */
40 svn_fs_x__open_rep_cache(svn_fs_t *fs,
41 apr_pool_t *scratch_pool);
43 /* Close the rep cache database associated with FS. */
45 svn_fs_x__close_rep_cache(svn_fs_t *fs);
47 /* Set *EXISTS to TRUE iff the rep-cache DB file exists. */
49 svn_fs_x__exists_rep_cache(svn_boolean_t *exists,
51 apr_pool_t *scratch_pool);
53 /* Iterate all representations currently in FS's cache. */
55 svn_fs_x__walk_rep_reference(svn_fs_t *fs,
58 svn_error_t *(*walker)(svn_fs_x__representation_t *rep,
61 apr_pool_t *scratch_pool),
63 svn_cancel_func_t cancel_func,
65 apr_pool_t *scratch_pool);
67 /* Return the representation REP in FS which has fulltext CHECKSUM.
68 *REP_P is allocated in RESULT_POOL. If the rep cache database has not
69 been opened, just set *REP_P to NULL. Returns SVN_ERR_FS_CORRUPT if
70 a reference beyond HEAD is detected. Uses SCRATCH_POOL for temporary
73 svn_fs_x__get_rep_reference(svn_fs_x__representation_t **rep_p,
75 svn_checksum_t *checksum,
76 apr_pool_t *result_pool,
77 apr_pool_t *scratch_pool);
79 /* Set the representation REP in FS, using REP->CHECKSUM.
80 Use SCRATCH_POOL for temporary allocations. Returns SVN_ERR_FS_CORRUPT
81 if an existing reference beyond HEAD is detected.
83 If the rep cache database has not been opened, this may be a no op. */
85 svn_fs_x__set_rep_reference(svn_fs_t *fs,
86 svn_fs_x__representation_t *rep,
87 apr_pool_t *scratch_pool);
89 /* Delete from the cache all reps corresponding to revisions younger
92 svn_fs_x__del_rep_reference(svn_fs_t *fs,
93 svn_revnum_t youngest,
94 apr_pool_t *scratch_pool);
97 /* Start a transaction to take an SQLite reserved lock that prevents
98 other writes, call BODY, end the transaction, and return what BODY returned.
101 svn_fs_x__with_rep_cache_lock(svn_fs_t *fs,
102 svn_error_t *(*body)(void *baton,
108 #endif /* __cplusplus */
110 #endif /* SVN_LIBSVN_FS_X_REP_CACHE_H */