From d295f0a4cbc5f96b0aa65a3d005f98bc31511068 Mon Sep 17 00:00:00 2001
From: Jon Bergli Heier <snakebite@jvnv.net>
Date: Mon, 23 Aug 2010 18:36:29 +0200
Subject: Implemented a communication event source for the main loop.

This source will deal with communication between servers.
More to be added and cleaned up soon.
---
 communication_source.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 communication_source.h | 16 ++++++++++++++++
 main.c                 |  3 +++
 servers.c              | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
 4 files changed, 114 insertions(+), 1 deletion(-)
 create mode 100644 communication_source.c
 create mode 100644 communication_source.h

diff --git a/communication_source.c b/communication_source.c
new file mode 100644
index 0000000..b0a03cb
--- /dev/null
+++ b/communication_source.c
@@ -0,0 +1,46 @@
+#include "communication_source.h"
+#include "servers.h"
+
+static GQueue *jobqueue = NULL;
+
+void communication_job_add(struct server *server) {
+	g_queue_push_head(jobqueue, server);
+}
+
+gboolean comsrc_prepare(GSource *source, gint *timeout) {
+	g_debug("comsrc_prepare()");
+	*timeout = 2000;
+	return g_queue_get_length(jobqueue) > 0 ? TRUE : FALSE;
+}
+
+gboolean comsrc_check(GSource *source) {
+	g_debug("comsrc_check()");
+	return g_queue_get_length(jobqueue) > 0 ? TRUE : FALSE;
+}
+
+gboolean comsrc_dispatch(GSource *source, GSourceFuncs callback, gpointer user_data) {
+	g_debug("comsrc_dispatch(), callback is %x, user_data is %x", callback, user_data);
+	struct server *server = g_queue_pop_tail(jobqueue);
+	server_sync(server);
+	return TRUE;
+}
+
+void comsrc_finalize(GSource *source) {
+}
+
+static const GSourceFuncs com_src_funcs = {
+	.prepare = comsrc_prepare,
+	.check = comsrc_check,
+	.dispatch = comsrc_dispatch,
+	.finalize = comsrc_finalize,
+};
+
+void communication_source_init(GMainLoop *mainloop) {
+	jobqueue = g_queue_new();
+
+	GMainContext *context = g_main_loop_get_context(mainloop);
+	GSource *source = g_source_new(&com_src_funcs, sizeof(GSource));
+	g_source_attach(source, context);
+
+	communication_job_add(servers->data);
+}
diff --git a/communication_source.h b/communication_source.h
new file mode 100644
index 0000000..0856cf4
--- /dev/null
+++ b/communication_source.h
@@ -0,0 +1,16 @@
+#ifndef COMMUNICATION_SOURCE_H
+#define COMMUNICATION_SOURCE_H
+
+#include "servers.h"
+
+#include <glib.h>
+
+struct communication_job {
+	struct server *server;
+};
+
+void communication_job_add(struct server *server);
+
+void communication_source_init(GMainLoop *mainloop);
+
+#endif
diff --git a/main.c b/main.c
index 1697c6a..0e846d7 100644
--- a/main.c
+++ b/main.c
@@ -35,6 +35,9 @@ int main(int argc, char **argv) {
 	signal(SIGINT, sig_handler);
 
 	main_loop = g_main_loop_new(NULL, FALSE);
+
+	communication_source_init(main_loop);
+
 	g_main_loop_run(main_loop);
 	g_main_loop_unref(main_loop);
 
diff --git a/servers.c b/servers.c
index 22e431d..94bbaf4 100644
--- a/servers.c
+++ b/servers.c
@@ -1,8 +1,56 @@
 #include "servers.h"
 #include "conf.h"
 
+#include <gio/gio.h>
+
 GSList *servers = NULL;
 
+gboolean server_sync(struct server *server) {
+	GError *error = NULL;
+	GSocketConnectable *addr;
+	GSocketAddressEnumerator *enumerator;
+	GSocketAddress *sockaddr;
+	GSocketConnection *conn = NULL;
+	GSocketClient *client;
+	GTimer *timer = g_timer_new();
+
+	addr = g_network_address_new(server->host, server->port);
+	enumerator = g_socket_connectable_enumerate(addr);
+	g_object_unref(addr);
+
+	client = g_socket_client_new();
+
+	while(conn == NULL && (sockaddr = g_socket_address_enumerator_next(enumerator, NULL, &error))) {
+		conn = g_socket_client_connect(client, (GSocketConnectable*)sockaddr, NULL, &error);
+		g_object_unref(sockaddr);
+	}
+
+	if(conn == NULL) {
+		g_warning(error->message);
+		g_error_free(error);
+		return FALSE;
+	}
+
+	GSocket *socket = g_socket_connection_get_socket(conn);
+
+	g_debug("connected");
+
+	g_socket_send(socket, "ping\n", 5, NULL, NULL);
+	gchar buffer[0x400];
+	g_socket_receive(socket, buffer, 0x400, NULL, NULL);
+	if(buffer[4] == '\n') {
+		buffer[4] = '\0';
+		g_debug("got response: %s", buffer);
+		g_debug("time: %f ms", g_timer_elapsed(timer, NULL) * 1000);
+	}
+
+	g_timer_destroy(timer);
+
+	g_socket_close(socket, NULL);
+
+	return TRUE;
+}
+
 gboolean server_add(const gchar *host, const guint16 port) {
 	struct server *server = g_new0(struct server, 1);
 
@@ -35,7 +83,7 @@ void servers_init() {
 	gsize length;
 	gchar **s = conf_get_string_list("audist", "servers", &length);
 	for(int i = 0; i < length; i++) {
-		server_add(s[i], 0);
+		server_add(s[i], 7681);
 		g_debug("  server %d: %s", i, s[i]);
 	}
 }
-- 
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