From f8fe3b1e2ed54ef05b718875da8d5dc1a76e9d1e Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Sun, 11 Oct 2015 21:07:07 +0100
Subject: [PATCH] Broadcast control command to workers.

---
 src/libserver/rspamd_control.c | 58 ++++++++++++++++++++++++++++++++--
 1 file changed, 56 insertions(+), 2 deletions(-)

diff --git a/src/libserver/rspamd_control.c b/src/libserver/rspamd_control.c
index aa2edaf74..8d9067053 100644
--- a/src/libserver/rspamd_control.c
+++ b/src/libserver/rspamd_control.c
@@ -34,11 +34,13 @@ static struct timeval io_timeout = {
 		.tv_usec = 0
 };
 
+struct rspamd_control_session;
+
 struct rspamd_control_reply_elt {
 	struct rspamd_control_reply reply;
 	struct event io_ev;
-	struct event tm_ev;
 	struct rspamd_worker *wrk;
+	struct rspamd_control_session *session;
 	struct rspamd_control_reply_elt *prev, *next;
 };
 
@@ -48,6 +50,7 @@ struct rspamd_control_session {
 	struct rspamd_http_connection *conn;
 	struct rspamd_control_command cmd;
 	struct rspamd_control_reply_elt *replies;
+	guint replies_remain;
 	gboolean is_reply;
 };
 
@@ -128,6 +131,7 @@ rspamd_control_connection_close (struct rspamd_control_session *session)
 	struct rspamd_control_reply_elt *elt, *telt;
 
 	DL_FOREACH_SAFE (session->replies, elt, telt) {
+		event_del (&elt->io_ev);
 		g_slice_free1 (sizeof (*elt), elt);
 	}
 
@@ -136,6 +140,26 @@ rspamd_control_connection_close (struct rspamd_control_session *session)
 	g_slice_free1 (sizeof (*session), session);
 }
 
+static void
+rspamd_control_wrk_io (gint fd, short what, gpointer ud)
+{
+	struct rspamd_control_reply_elt *elt = ud;
+
+	if (read (elt->wrk->control_pipe[1], &elt->reply, sizeof (elt->reply)) !=
+				sizeof (elt->reply)) {
+		msg_err ("cannot read request from the worker %p (%s): %s",
+				elt->wrk->pid, g_quark_to_string (elt->wrk->type), strerror (errno));
+	}
+
+	elt->session->replies_remain --;
+	event_del (&elt->io_ev);
+
+	if (elt->session->replies_remain == 0) {
+		/* TODO: add reply logic */
+		rspamd_control_connection_close (elt->session);
+	}
+}
+
 static void
 rspamd_control_error_handler (struct rspamd_http_connection *conn, GError *err)
 {
@@ -159,6 +183,10 @@ rspamd_control_finish_hadler (struct rspamd_http_connection *conn,
 	rspamd_ftok_t srch;
 	guint i;
 	gboolean found = FALSE;
+	GHashTableIter it;
+	struct rspamd_worker *wrk;
+	struct rspamd_control_reply_elt *rep_elt;
+	gpointer k, v;
 
 	if (!session->is_reply) {
 		if (msg->url == NULL) {
@@ -184,7 +212,33 @@ rspamd_control_finish_hadler (struct rspamd_http_connection *conn,
 			rspamd_control_send_error (session, 404, "Command not defined");
 		}
 		else {
-			rspamd_control_send_error (session, 500, "Not implemented yet");
+			/* Send command to all workers */
+			g_hash_table_iter_init (&it, session->rspamd_main->workers);
+
+			while (g_hash_table_iter_next (&it, &k, &v)) {
+				wrk = v;
+
+				if (write (wrk->control_pipe[0], &session->cmd,
+						sizeof (session->cmd)) == sizeof (session->cmd)) {
+
+					rep_elt = g_slice_alloc0 (sizeof (*rep_elt));
+					rep_elt->wrk = wrk;
+					rep_elt->session = session;
+					event_set (&rep_elt->io_ev, wrk->control_pipe[0],
+							EV_READ | EV_PERSIST, rspamd_control_wrk_io,
+							rep_elt);
+					event_base_set (session->rspamd_main->ev_base,
+							&rep_elt->io_ev);
+					event_add (&rep_elt->io_ev, &io_timeout);
+
+					DL_APPEND (session->replies, rep_elt);
+					session->replies_remain ++;
+				}
+				else {
+					msg_err ("cannot write request to the worker %p (%s): %s",
+						wrk->pid, g_quark_to_string (wrk->type), strerror (errno));
+				}
+			}
 		}
 	}
 	else {
-- 
2.39.5