index 06f52435eeb76fe2e0a5a0d1d870e127ba946a9b..5dc2b1a8c5ce35105f7b57b972b3dd924bca3ab8 100644 (file)
#define SDB_FRONTEND_CONNECTION_H 1
#include "frontend/proto.h"
+#include "core/store.h"
#include "utils/llist.h"
#include "utils/strbuf.h"
} sdb_conn_node_t;
#define SDB_CONN_NODE(obj) ((sdb_conn_node_t *)(obj))
+/*
+ * sdb_connection_enable_logging:
+ * Enable logging of connection-related messages to the current client
+ * connection. After this function has been called all log messages
+ * originating from the thread handling the current client connection will
+ * also be sent to the client.
+ *
+ * Returns:
+ * - 0 on success
+ * - a negative value else
+ */
+int
+sdb_connection_enable_logging(void);
+
/*
* sdb_connection_accpet:
* Accept a new connection on the specified file-descriptor 'fd' and return a
/*
* sdb_fe_parse:
- * Parse the query text specified in 'query' and return a list of parse trees
- * (for each command) to be executed by sdb_fe_exec. The list has to be freed
- * by the caller.
+ * Parse the query text specified in 'query' of length 'len' and return a list
+ * of parse trees (for each command) to be executed by sdb_fe_exec. The list
+ * has to be freed by the caller. If 'len' is less than zero, parse the whole
+ * (nul-terminated) string. If specified, errbuf will be used to record parse
+ * errors.
*
* Returns:
* - an sdb_llist_t object of sdb_conn_node_t on success
* - NULL in case of an error
*/
sdb_llist_t *
-sdb_fe_parse(const char *query);
+sdb_fe_parse(const char *query, int len, sdb_strbuf_t *errbuf);
/*
* sdb_fe_exec:
*/
/*
- * sdb_fe_list:
- * Send a complete listing of the store, serialized as JSON, to the client.
+ * sdb_fe_query, sdb_fe_fetch, sdb_fe_list, sdb_fe_lookup:
+ * Handle the SDB_CONNECTION_QUERY, SDB_CONNECTION_FETCH, SDB_CONNECTION_LIST,
+ * and SDB_CONNECTION_LOOKUP commands respectively. It is expected that the
+ * current command has been initialized already.
*
* Returns:
* - 0 on success
* - a negative value else
*/
int
+sdb_fe_query(sdb_conn_t *conn);
+int
+sdb_fe_fetch(sdb_conn_t *conn);
+int
sdb_fe_list(sdb_conn_t *conn);
+int
+sdb_fe_lookup(sdb_conn_t *conn);
+
+/*
+ * sdb_fe_exec_fetch:
+ * Execute the 'FETCH' command. Send the named object of the specified type,
+ * serialized as JSON, to the client. If specified, only objects matching the
+ * filter will be included.
+ *
+ * Returns:
+ * - 0 on success
+ * - a negative value else
+ */
+int
+sdb_fe_exec_fetch(sdb_conn_t *conn, int type,
+ const char *hostname, const char *name, sdb_store_matcher_t *filter);
+
+/*
+ * sdb_fe_exec_list:
+ * Execute the 'LIST' command. Send a complete listing of the store,
+ * serialized as JSON, to the client. The listing includes all hosts and the
+ * specified object type. If specified, only objects matching the filter will
+ * be included.
+ *
+ * Returns:
+ * - 0 on success
+ * - a negative value else
+ */
+int
+sdb_fe_exec_list(sdb_conn_t *conn, int type, sdb_store_matcher_t *filter);
+
+/*
+ * sdb_fe_exec_lookup:
+ * Execute the 'LOOKUP' command. Send a list of objects of the specified type
+ * matching 'm', serialized as JSON, to the client. If specified, only objects
+ * matching the filter will be included.
+ *
+ * Returns:
+ * - 0 on success
+ * - a negative value else
+ */
+int
+sdb_fe_exec_lookup(sdb_conn_t *conn, int type,
+ sdb_store_matcher_t *m, sdb_store_matcher_t *filter);
+
+/*
+ * sdb_fe_exec_timeseries:
+ * Execute the 'TIMESERIES' command. Send the time-series for the specified
+ * host's metric, serialized as JSON, to the client. See
+ * sdb_store_fetch_timeseries for details.
+ *
+ * Returns:
+ * - 0 on success
+ * - a negative value else
+ */
+int
+sdb_fe_exec_timeseries(sdb_conn_t *conn,
+ const char *hostname, const char *metric,
+ sdb_timeseries_opts_t *opts);
#ifdef __cplusplus
} /* extern "C" */