examples: use blocking notify

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

3 files changed, 39 insertions, 1 deletions

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index a6ab7bf..5a11a9f 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 2.6)
 ADD_DEFINITIONS(-I..)
 
 ADD_EXECUTABLE(server server.c)
-TARGET_LINK_LIBRARIES(server ubus ubox)
+TARGET_LINK_LIBRARIES(server ubus ubox blobmsg_json)
 
 ADD_EXECUTABLE(client client.c)
 TARGET_LINK_LIBRARIES(client ubus ubox)
diff --git a/examples/client.c b/examples/client.c
index 418fb15..75c61a4 100644
--- a/examples/client.c
+++ b/examples/client.c
@@ -27,6 +27,25 @@ static struct ubus_object test_client_object = {
 	.subscribe_cb = test_client_subscribe_cb,
 };
 
+static void test_client_notify_cb(struct uloop_timeout *timeout)
+{
+	static int counter = 0;
+	int err;
+
+	blob_buf_init(&b, 0);
+	blobmsg_add_u32(&b, "counter", counter++);
+
+	err = ubus_notify(ctx, &test_client_object, "ping", b.head, 1000);
+	if (err)
+		fprintf(stderr, "Notify failed: %s\n", ubus_strerror(err));
+
+	uloop_timeout_set(timeout, 1000);
+}
+
+static struct uloop_timeout notify_timer = {
+	.cb = test_client_notify_cb,
+};
+
 static void client_main(void)
 {
 	uint32_t id;
@@ -46,6 +65,7 @@ static void client_main(void)
 	blob_buf_init(&b, 0);
 	blobmsg_add_u32(&b, "id", test_client_object.id);
 	ubus_invoke(ctx, id, "watch", b.head, NULL, 0, 3000);
+	test_client_notify_cb(&notify_timer);
 	uloop_run();
 }
 
diff --git a/examples/server.c b/examples/server.c
index 529059c..c5af1aa 100644
--- a/examples/server.c
+++ b/examples/server.c
@@ -13,6 +13,7 @@
 
 #include <unistd.h>
 
+#include <libubox/blobmsg_json.h>
 #include "libubus.h"
 
 static struct ubus_context *ctx;
@@ -72,11 +73,13 @@ static int test_hello(struct ubus_context *ctx, struct ubus_object *obj,
 
 enum {
 	WATCH_ID,
+	WATCH_COUNTER,
 	__WATCH_MAX
 };
 
 static const struct blobmsg_policy watch_policy[__WATCH_MAX] = {
 	[WATCH_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
+	[WATCH_COUNTER] = { .name = "counter", .type = BLOBMSG_TYPE_INT32 },
 };
 
 static void
@@ -86,6 +89,20 @@ test_handle_remove(struct ubus_context *ctx, struct ubus_subscriber *s,
 	fprintf(stderr, "Object %08x went away\n", id);
 }
 
+static int
+test_notify(struct ubus_context *ctx, struct ubus_object *obj,
+	    struct ubus_request_data *req, const char *method,
+	    struct blob_attr *msg)
+{
+	char *str;
+
+	str = blobmsg_format_json(msg, true);
+	fprintf(stderr, "Received notification '%s': %s\n", method, str);
+	free(str);
+
+	return 0;
+}
+
 static int test_watch(struct ubus_context *ctx, struct ubus_object *obj,
 		      struct ubus_request_data *req, const char *method,
 		      struct blob_attr *msg)
@@ -98,6 +115,7 @@ static int test_watch(struct ubus_context *ctx, struct ubus_object *obj,
 		return UBUS_STATUS_INVALID_ARGUMENT;
 
 	test_event.remove_cb = test_handle_remove;
+	test_event.cb = test_notify;
 	ret = ubus_subscribe(ctx, &test_event, blobmsg_get_u32(tb[WATCH_ID]));
 	fprintf(stderr, "Watching object %08x: %s\n", blobmsg_get_u32(tb[WATCH_ID]), ubus_strerror(ret));
 	return ret;