Update to new code

test/threadqueue.c

@@ -18,7 +18,7 @@ void *reader(void *arg)
     for (i = 0; i < CNT/2; i++) {
         struct uc_threadmsg *msg;
         struct my_msg *my;
-        if (uc_thread_queue_get(&queue, NULL, &msg) != 0) {
+        if (uc_thread_queue_get(&queue,  &msg) != 0) {
             printf("uc_threadqueue_get failed\n");
             return NULL;
         }

test/threadqueue_signal.c

@@ -2,6 +2,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <signal.h>
+#include <errno.h>
 #include <ucore/ucore_threadqueue.h>
 
 struct uc_threadqueue queue;
@@ -17,7 +18,13 @@ void *handler(void *arg)
     for (;;) {
         struct uc_threadmsg *msg;
         struct my_msg *my;
-        if (uc_thread_queue_get(&queue, NULL, &msg) != 0) {
+        struct timespec timeout = {5, 0};
+        int rc;
+        rc = uc_thread_queue_tryget(&queue,  &timeout, &msg);
+        if(rc == ETIMEDOUT) {
+            printf("handler timed out\n");
+            continue;
+        } else if (rc != 0) {
             printf("uc_threadqueue_get failed\n");
             return NULL;
         }
@@ -61,6 +68,7 @@ int main(int argc, char *argv[])
         }
         struct my_msg *msg = malloc(sizeof *msg);
         msg->sig = sig;
+        msg->uc_msg.msgtype = 0;
         uc_thread_queue_add(&queue, msg);