import RT-Thread@9217865c without bsp, libcpu and components/net

examples/libc/ex6.c

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+#include <sys/errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <unistd.h>
+
+#define usleep rt_thread_sleep
+
+static void *test_thread(void *v_param) {
+    return NULL;
+}
+
+int libc_ex6(void) {
+    unsigned long count;
+
+    setvbuf(stdout, NULL, _IONBF, 0);
+
+    for (count = 0; count < 2000; ++count) {
+        pthread_t thread;
+        int status;
+
+        status = pthread_create(&thread, NULL, test_thread, NULL);
+        if (status != 0) {
+            printf("status = %d, count = %lu: %s\n", status, count, strerror(
+                    errno));
+            return 1;
+        } else {
+            printf("count = %lu\n", count);
+        }
+        /* pthread_detach (thread); */
+        pthread_join(thread, NULL);
+        usleep(10);
+    }
+    return 0;
+}
+#include <finsh.h>
+FINSH_FUNCTION_EXPORT(libc_ex6, example 6 for libc);