frontend: Let CONNECTION_QUERY support 'TIMESERIES' queries.

[sysdb.git] / src / frontend / query.c

diff --git a/src/frontend/query.c b/src/frontend/query.c
index a30bee3e4b8f274730ff650d2ca84cc168fee58d..e0b7181161cde74bbf9ba50d96c49022444ec31e 100644 (file)
--- a/src/frontend/query.c
+++ b/src/frontend/query.c
@@ -187,6 +187,10 @@ sdb_fe_exec(sdb_conn_t *conn, sdb_conn_node_t *node)
                        if (CONN_LOOKUP(node)->filter)
                                filter = CONN_LOOKUP(node)->filter->matcher;
                        return sdb_fe_exec_lookup(conn, m, filter);
+               case CONNECTION_TIMESERIES:
+                       return sdb_fe_exec_timeseries(conn,
+                                       CONN_TS(node)->hostname, CONN_TS(node)->metric,
+                                       &CONN_TS(node)->opts);
 
                default:
                        sdb_log(SDB_LOG_ERR, "frontend: Unknown command %i", node->cmd);
@@ -310,5 +314,36 @@ sdb_fe_exec_lookup(sdb_conn_t *conn, sdb_store_matcher_t *m,
        return 0;
 } /* sdb_fe_exec_lookup */
 
+int
+sdb_fe_exec_timeseries(sdb_conn_t *conn,
+               const char *hostname, const char *metric,
+               sdb_timeseries_opts_t *opts)
+{
+       sdb_strbuf_t *buf;
+
+       buf = sdb_strbuf_create(1024);
+       if (! buf) {
+               char errbuf[1024];
+               sdb_log(SDB_LOG_ERR, "frontend: Failed to create "
+                               "buffer to handle TIMESERIES command: %s",
+                               sdb_strerror(errno, errbuf, sizeof(errbuf)));
+
+               sdb_strbuf_sprintf(conn->errbuf, "Out of memory");
+               return -1;
+       }
+
+       if (sdb_store_fetch_timeseries(hostname, metric, opts, buf)) {
+               sdb_log(SDB_LOG_ERR, "frontend: Failed to fetch time-series");
+               sdb_strbuf_sprintf(conn->errbuf, "Failed to fetch time-series");
+               sdb_strbuf_destroy(buf);
+               return -1;
+       }
+
+       sdb_connection_send(conn, CONNECTION_OK,
+                       (uint32_t)sdb_strbuf_len(buf), sdb_strbuf_string(buf));
+       sdb_strbuf_destroy(buf);
+       return 0;
+} /* sdb_fe_exec_timeseries */
+
 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */