VMS Help DCE, dce_intro, dce_db_intro, dce_db_store *Conan The Librarian (sorry for the slow response - running on an old VAX) |
NAME dce_db_store - Stores data into a backing store SYNOPSIS #include <dce/dce.h> #include <dce/dbif.h> void dce_db_store( dce_db_handle_t handle, void *key, void *data, error_status_t *status ); PARAMETERS Input handle A handle, returned from dce_db_open(), that identifies the backing store being used. key A string or UUID that is the backing store key. The datatype of key must match the key method that was selected in the flags parameter to dce_db_open() when the backing store was created. data A pointer to the data structure to be stored. Output status A pointer to the completion status. On successful completion, the routine returns error_status_ok. Otherwise, it returns an error. DESCRIPTION The dce_db_store() routine stores the data structure pointed to by data into the backing store. The conversion function that was specified in the call to dce_db_open() serializes the structure so that it can be written to disk. If the key value is the same as a key already stored, the new data replaces the previously stored data associated with that key. NOTES Because the dce_db_store() routine uses the encoding services, and they in turn use rpc_sm_allocate(), all programs that call dce_db_store() outside of a server operation (for instance, if a server does some backing store initialization, or in a standalone program) must call rpc_sm_enable_allocate() first. Indeed, every thread that calls dce_db_store() must do rpc_sm_enable_allocate(), but in the server side of an RPC, this is already done. ERRORS db_s_bad_index_type The key's type is wrong, or else the backing store is not by name or by UUID. db_s_readonly The backing store was opened with the db_c_readonly flag, and cannot be written to. db_s_store_failed The data could not be stored into the backing store for some reason. The global variable errno may contain more information about the error. db_s_iter_not_allowed The function was called while an iteration, begun by dce_db_iter_start(), was in progress. Storing is not allowed during iteration. error_status_ok The call was successful. RELATED INFORMATION Functions: dce_db_fetch dce_db_open dce_db_store_by_name dce_db_store_by_uuid
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