listener.c

   1 #include "libubus.h"
   2
   3 static struct ubus_context *ctx;
   4 struct blob_buf b;
   5
   6 static const struct ubus_signature test_object_sig[] = {
   7         UBUS_METHOD_START("hello"),
   8           UBUS_ARRAY("test"),
   9                 UBUS_TABLE_START(NULL),
  10                   UBUS_FIELD(INT32, "id"),
  11                   UBUS_FIELD(STRING, "msg"),
  12                 UBUS_TABLE_END(),
  13         UBUS_METHOD_END(),
  14 };
  15
  16 static struct ubus_object_type test_object_type =
  17         UBUS_OBJECT_TYPE("test", test_object_sig);
  18
  19 static int test_hello(struct ubus_context *ctx, struct ubus_object *obj,
  20                       struct ubus_request_data *req, const char *method,
  21                       struct blob_attr *msg)
  22 {
  23         blob_buf_init(&b, 0);
  24         blobmsg_add_string(&b, "message", "Hello, world!\n");
  25         ubus_send_reply(ctx, req, b.head);
  26         return 0;
  27 }
  28
  29 static const struct ubus_method test_methods[] = {
  30         { .name = "hello", .handler = test_hello },
  31 };
  32
  33 static struct ubus_object test_object = {
  34         .name = "test",
  35         .type = &test_object_type,
  36         .methods = test_methods,
  37         .n_methods = ARRAY_SIZE(test_methods),
  38 };
  39
  40 static struct ubus_object test_object2 = {
  41         .name = "test2",
  42         .type = &test_object_type,
  43         .methods = test_methods,
  44         .n_methods = ARRAY_SIZE(test_methods),
  45 };
  46
  47 int main(int argc, char **argv)
  48 {
  49         int ret;
  50
  51         ctx = ubus_connect(NULL);
  52         if (!ctx) {
  53                 fprintf(stderr, "Failed to connect to ubus\n");
  54                 return -1;
  55         }
  56
  57         fprintf(stderr, "Connected as ID 0x%08x\n", ctx->local_id);
  58
  59         fprintf(stderr, "Publishing object\n");
  60         ret = ubus_publish(ctx, &test_object);
  61         if (ret)
  62                 fprintf(stderr, "Failed to publish object: %s\n", ubus_strerror(ret));
  63         else {
  64                 fprintf(stderr, "Object ID: %08x\n", test_object.id);
  65                 fprintf(stderr, "Object Type ID: %08x\n", test_object.type->id);
  66         }
  67
  68         fprintf(stderr, "Publishing object\n");
  69         ret = ubus_publish(ctx, &test_object2);
  70         if (ret)
  71                 fprintf(stderr, "Failed to publish object: %s\n", ubus_strerror(ret));
  72         else {
  73                 fprintf(stderr, "Object ID: %08x\n", test_object2.id);
  74                 fprintf(stderr, "Object Type ID: %08x\n", test_object2.type->id);
  75         }
  76         uloop_init();
  77         uloop_fd_add(&ctx->sock, ULOOP_READ | ULOOP_EDGE_TRIGGER);
  78         uloop_run();
  79
  80         ubus_free(ctx);
  81         return 0;
  82 }