From d1fac4d941aaa9dbf9e72540f97d928af241cb5e Mon Sep 17 00:00:00 2001
From: Benjamin Franzke <benjaminfranzke@googlemail.com>
Date: Fri, 23 Sep 2011 10:53:51 +0200
Subject: Store callbacks in context

---
 src/cmumble.c    | 10 ++++++++--
 src/cmumble.h    | 13 ++++---------
 src/connection.c |  6 ++----
 src/connection.h |  6 +-----
 src/messages.c   | 13 +++++++------
 5 files changed, 22 insertions(+), 26 deletions(-)

diff --git a/src/cmumble.c b/src/cmumble.c
index bb2e934..5cc61c0 100644
--- a/src/cmumble.c
+++ b/src/cmumble.c
@@ -205,7 +205,12 @@ recv_user_state(MumbleProto__UserState *state, struct context *ctx)
 	ctx->users = g_list_prepend(ctx->users, user);
 }
 
-static struct mumble_callbacks callbacks = {
+
+static const struct {
+#define MUMBLE_MSG(a,b) void (* a)(MumbleProto__##a *, struct context *);
+	MUMBLE_MSGS
+#undef MUMBLE_MSG
+} callbacks = {
 	.Version		= recv_version,
 	.UDPTunnel		= recv_udp_tunnel,
 	.Authenticate		= NULL,
@@ -380,8 +385,9 @@ int main(int argc, char **argv)
 
 	g_type_init();
 	ctx.loop = g_main_loop_new(NULL, FALSE);
+	ctx.callbacks = (const callback_t *) &callbacks;
 
-	if (cmumble_connection_init(&ctx, host, port, &callbacks) < 0)
+	if (cmumble_connection_init(&ctx, host, port) < 0)
 		return 1;
 
 	{
diff --git a/src/cmumble.h b/src/cmumble.h
index f315368..9f40d31 100644
--- a/src/cmumble.h
+++ b/src/cmumble.h
@@ -18,9 +18,12 @@
 #include "io.h"
 #include "connection.h"
 
+typedef void (*callback_t)(ProtobufCMessage *msg, struct context *);
+
 struct context {
 	struct cmumble_connection con;
 	struct cmumble_io io;
+	const callback_t *callbacks;
 	GMainLoop *loop;
 
 	uint32_t session;
@@ -60,18 +63,10 @@ enum mumble_message {
 #undef MUMBLE_MSG
 };
 
-struct mumble_callbacks {
-#define MUMBLE_MSG(a,b) void (* a)(MumbleProto__##a *, struct context *);
-	MUMBLE_MSGS
-#undef MUMBLE_MSG
-};
-
-typedef void (*callback_t)(ProtobufCMessage *msg, struct context *);
-
 void
 send_msg(struct context *ctx, ProtobufCMessage *msg);
 
 int
-recv_msg(struct context *ctx, const struct mumble_callbacks *callbacks);
+recv_msg(struct context *ctx);
 
 #endif
diff --git a/src/connection.c b/src/connection.c
index 3494d08..7cb48e6 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -12,7 +12,7 @@ read_cb(GObject *pollable_stream, gpointer data)
 	gint count;
 
 	do {
-		count = recv_msg(ctx, ctx->con.callbacks);
+		count = recv_msg(ctx);
 	} while (count && g_pollable_input_stream_is_readable(input));
 
 	return TRUE;
@@ -46,13 +46,11 @@ setup_ping_timer(struct context *ctx)
 
 int
 cmumble_connection_init(struct context *ctx,
-			const char *host, int port,
-			struct mumble_callbacks *callbacks)
+			const char *host, int port)
 {
 	struct cmumble_connection *con = &ctx->con;
 	GError *error = NULL;
 
-	con->callbacks = callbacks;
 	con->sock_client = g_socket_client_new();
 	g_socket_client_set_tls(con->sock_client, TRUE);
 	g_socket_client_set_tls_validation_flags(con->sock_client,
diff --git a/src/connection.h b/src/connection.h
index e38150d..cf3dbc0 100644
--- a/src/connection.h
+++ b/src/connection.h
@@ -12,17 +12,13 @@ struct cmumble_connection {
 	GOutputStream *output;
 
 	GSource *source;
-
-	struct mumble_callbacks *callbacks;
 };
 
 struct context;
-struct mumble_callbacks;
 
 int
 cmumble_connection_init(struct context *ctx,
-			const char *host, int port,
-			struct mumble_callbacks *cbs);
+			const char *host, int port);
 
 int
 cmumble_connection_fini(struct context *ctx);
diff --git a/src/messages.c b/src/messages.c
index 8807166..98b53e3 100644
--- a/src/messages.c
+++ b/src/messages.c
@@ -71,16 +71,17 @@ send_msg(struct context *ctx, ProtobufCMessage *msg)
 }
 
 int
-recv_msg(struct context *ctx, const struct mumble_callbacks *cbs)
+recv_msg(struct context *ctx)
 {
 	uint8_t preamble[PREAMBLE_SIZE];
 	ProtobufCMessage *msg;
 	gchar *data;
 	int type, len;
 	gssize ret;
-	const callback_t *callbacks = (const callback_t *) cbs;
 	GError *error = NULL;
 
+	g_assert(ctx->callbacks);
+
 	ret = g_pollable_input_stream_read_nonblocking(ctx->con.input,
 						       preamble, PREAMBLE_SIZE,
 						       NULL, &error);
@@ -121,8 +122,8 @@ recv_msg(struct context *ctx, const struct mumble_callbacks *cbs)
 		udptunnel.packet.len = len;
 		udptunnel.packet.data = (uint8_t *) data;
 		
-		if (callbacks[UDPTunnel])
-			callbacks[UDPTunnel](&udptunnel.base, ctx);
+		if (ctx->callbacks[UDPTunnel])
+			ctx->callbacks[UDPTunnel](&udptunnel.base, ctx);
 
 		g_free(data);
 		return 0;
@@ -136,8 +137,8 @@ recv_msg(struct context *ctx, const struct mumble_callbacks *cbs)
 	}
 
 	g_print("debug: received message: %s type:%d, len:%d\n", messages[type].name, type, len);
-	if (callbacks[type])
-		callbacks[type](msg, ctx);
+	if (ctx->callbacks[type])
+		ctx->callbacks[type](msg, ctx);
 
 	protobuf_c_message_free_unpacked(msg, NULL);
 	g_free(data);
-- 
cgit