fs_fs.h

linux subdivision ying gai ke yi le ba

/* Create an entirely new mutable node in the filesystem FS, whose
   node-revision is NODEREV.  Set *ID_P to the new node revision's ID.
   Use POOL for any temporary allocation.  COPY_ID is the copy_id to
   use in the node revision ID.  TXN_ID is the Subversion transaction
   under which this occurs. */
svn_error_t *svn_fs_fs__create_node (const svn_fs_id_t **id_p,
                                     svn_fs_t *fs,
                                     node_revision_t *noderev,
                                     const char *copy_id,
                                     const char *txn_id,
                                     apr_pool_t *pool);

/* Remove all references to the transaction TXN_ID from filesystem FS.
   Temporary allocations are from POOL. */
svn_error_t *svn_fs_fs__purge_txn (svn_fs_t *fs,
                                   const char *txn_id,
                                   apr_pool_t *pool);

/* Add or set in filesystem FS, transaction TXN_ID, in directory
   PARENT_NODEREV a directory entry for NAME pointing to ID of type
   KIND.  Allocations are done in POOL. */
svn_error_t *svn_fs_fs__set_entry (svn_fs_t *fs,
                                   const char *txn_id,
                                   node_revision_t *parent_noderev,
                                   const char *name,
                                   const svn_fs_id_t *id,
                                   svn_node_kind_t kind,
                                   apr_pool_t *pool);

/* Add a change to the changes record for filesystem FS in transaction
   TXN_ID.  Mark path PATH, having node-id ID, as changed according to
   the type in CHANGE_KIND.  If the text representation was changed
   set TEXT_MOD to TRUE, and likewise for PROP_MOD.  If this change
   was the result of a copy, set COPYFROM_REV and COPYFROM_PATH to the
   revision and path of the copy source, otherwise they should be set
   to SVN_INVALID_REVNUM and NULL.  Perform any temporary allocations
   from POOL. */
svn_error_t *svn_fs_fs__add_change (svn_fs_t *fs,
                                    const char *txn_id,
                                    const char *path,
                                    const svn_fs_id_t *id,
                                    svn_fs_path_change_kind_t change_kind,
                                    svn_boolean_t text_mod,
                                    svn_boolean_t prop_mod,
                                    svn_revnum_t copyfrom_rev,
                                    const char *copyfrom_path,
                                    apr_pool_t *pool);

/* Return a writable stream in *STREAM that allows storing the text
   representation of node-revision NODEREV in filesystem FS.
   Allocations are from POOL. */
svn_error_t *svn_fs_fs__set_contents (svn_stream_t **stream,
                                      svn_fs_t *fs,
                                      node_revision_t *noderev,
                                      apr_pool_t *pool);

/* Create a node revision in FS which is an immediate successor of
   OLD_ID, whose contents are NEW_NR.  Set *NEW_ID_P to the new node
   revision's ID.  Use POOL for any temporary allocation.

   COPY_ID, if non-NULL, is a key into the `copies' table, and
   indicates that this new node is being created as the result of a
   copy operation, and specifically which operation that was.  If
   COPY_ID is NULL, then re-use the copy ID from the predecessor node.

   TXN_ID is the Subversion transaction under which this occurs.

   After this call, the deltification code assumes that the new node's
   contents will change frequently, and will avoid representing other
   nodes as deltas against this node's contents.  */
svn_error_t *svn_fs_fs__create_successor (const svn_fs_id_t **new_id_p,
                                          svn_fs_t *fs,
                                          const svn_fs_id_t *old_idp,
                                          node_revision_t *new_noderev,
                                          const char *copy_id,
                                          const char *txn_id,
                                          apr_pool_t *pool);

/* Write a new property list PROPLIST for node-revision NODEREV in
   filesystem FS.  Perform any temporary allocations in POOL. */
svn_error_t *svn_fs_fs__set_proplist (svn_fs_t *fs,
                                      node_revision_t *noderev,
                                      apr_hash_t *proplist,
                                      apr_pool_t *pool);

/* Commit the transaction TXN in filesystem FS and return it's new
   revision number in *REV.  If the transaction is out of date, return
   the error SVN_ERR_FS_TXN_OUT_OF_DATE.  Use POOL for temporary
   allocations. */
svn_error_t *svn_fs_fs__commit (svn_revnum_t *new_rev_p,
                                svn_fs_t *fs,
                                svn_fs_txn_t *txn,
                                apr_pool_t *pool);

/* Return the next available copy_id in *COPY_ID for the transaction
   TXN_ID in filesystem FS.  Allocate space in POOL. */
svn_error_t *svn_fs_fs__reserve_copy_id (const char **copy_id,
                                         svn_fs_t *fs,
                                         const char *txn_id,
                                         apr_pool_t *pool);

/* Create a fs_fs fileysystem referenced by FS at path PATH.  Get any
   temporary allocations from POOL. */
svn_error_t *svn_fs_fs__create (svn_fs_t *fs,
                                const char *path,
                                apr_pool_t *pool);

/* Store the uuid of the repository FS in *UUID.  Allocate space in
   POOL. */
svn_error_t *svn_fs_fs__get_uuid (svn_fs_t *fs,
                                  const char **uuid,
                                  apr_pool_t *pool);

/* Set the uuid of repository FS to UUID.  Perform temporary
   allocations in POOL. */
svn_error_t *svn_fs_fs__set_uuid (svn_fs_t *fs,
                                  const char *uuid,
                                  apr_pool_t *pool);

/* Write out the zeroth revision for filesystem FS. */
svn_error_t *svn_fs_fs__write_revision_zero (svn_fs_t *fs);

/* Set *NAMES_P to an array of names which are all the active
   transactions in filesystem FS.  Allocate the array from POOL. */
svn_error_t *svn_fs_fs__list_transactions (apr_array_header_t **names_p,
                                           svn_fs_t *fs,
                                           apr_pool_t *pool);

/* Open the transaction named NAME in filesystem FS.  Set *TXN_P to
 * the transaction. If there is no such transaction, return
` * SVN_ERR_FS_NO_SUCH_TRANSACTION.  Allocate the new transaction in
 * POOL. */
svn_error_t *svn_fs_fs__open_txn (svn_fs_txn_t **txn_p,
                                  svn_fs_t *fs,
                                  const char *name,
                                  apr_pool_t *pool);

/* Return the property list from transaction TXN and store it in
   *PROPLIST.  Allocate the property list from POOL. */
svn_error_t *svn_fs_fs__txn_proplist (apr_hash_t **proplist,
                                      svn_fs_txn_t *txn,
                                      apr_pool_t *pool);

/* Delete the mutable node-revision referenced by ID, along with any
   mutable props or directory contents associated with it.  Perform
   temporary allocations in POOL. */
svn_error_t *svn_fs_fs__delete_node_revision (svn_fs_t *fs,
                                              const svn_fs_id_t *id,
                                              apr_pool_t *pool);


/* Find the paths which were changed in transaction TXN_ID of
   filesystem FS and store them in *CHANGED_PATHS_P.  Cached copyfrom
   information will be stored in COPYFROM_CACHE if it is non-NULL.
   Get any temporary allocations from POOL. */
svn_error_t *svn_fs_fs__txn_changes_fetch (apr_hash_t **changes,
                                           svn_fs_t *fs,
                                           const char *txn_id,
                                           apr_hash_t *copyfrom_cache,
                                           apr_pool_t *pool);

#endif