add reentrance check for lwip arch/ethernetif; convert an example to utf-8 format.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1495 bbd45198-f89e-11dd-88c7-29a3b14d5316

1 files changed, 30 insertions, 30 deletions

diff --git a/examples/kernel/mbox_send_wait.c b/examples/kernel/mbox_send_wait.c
index dc1e6295ee..6cce513bd2 100644
--- a/examples/kernel/mbox_send_wait.c
+++ b/examples/kernel/mbox_send_wait.c
@@ -1,43 +1,43 @@
 /*
- * �����嵥����������_��������
+ * 程序清单：邮箱例程_发送阻塞
  *
- * ������������������䷢��ʱ������������
+ * 这个程序用来测试邮箱发送时候的阻塞情况。
  *
  */
 #include <rtthread.h>
 #include "tc_comm.h"
 
-/* ָ���߳̿��ƿ��ָ�� */
+/* 指向线程控制块的指针 */
 static rt_thread_t tid1 = RT_NULL;
 static rt_thread_t tid2 = RT_NULL;
 
-/* ������ƿ� */
+/* 邮箱控制块 */
 static struct rt_mailbox mb;
-/* ���ڷ��ʼ����ڴ�� */
+/* 用于放邮件的内存池 */
 static char mb_pool[32];
 
 static char mb_str1[] = "I'm a mail!";
 static char mb_str2[] = "this is another mail!";
 
-/* �߳�1��� */
+/* 线程1入口 */
 static void thread1_entry(void* parameter)
 {
 	unsigned char* str;
 
 	while (1)
 	{
-		/* ����������ȡ�ʼ� */
+		/* 从邮箱中收取邮件 */
 		if (rt_mb_recv(&mb, (rt_uint32_t*)&str, RT_WAITING_FOREVER) == RT_EOK)
 		{
 			rt_kprintf("thread1: get a mail from mailbox, the content:%s\n", str);
 
-			/* ��ʱ20��OS Tick */
+			/* 延时20个OS Tick */
 			rt_thread_delay(50);
 		}
 	}
 }
 
-/* �߳�2��� */
+/* 线程2入口 */
 static void thread2_entry(void* parameter)
 {
 	rt_uint8_t count;
@@ -49,16 +49,16 @@ static void thread2_entry(void* parameter)
 		count ++;
 		if (count & 0x1)
 		{
-			/* ����mb_str1��ַ�������� */
+			/* 发送mb_str1地址到邮箱中 */
             str = mb_str1;
 		}
 		else
 		{
-			/* ����mb_str2��ַ�������� */
+			/* 发送mb_str2地址到邮箱中 */
             str = mb_str2;
 		}
 
-        /* ��ͣ�ķ����ʼ������������ȴ�10��tick��Ȼ��ʱ */
+        /* 不停的发送邮件，如果满了则等待10个tick，然后超时 */
         if( rt_mb_send_wait(&mb, (rt_uint32_t)str,10) == RT_EOK )
             rt_kprintf("thread2: sent a mail to mailbox, the content:%s\n", str);
         else
@@ -68,25 +68,25 @@ static void thread2_entry(void* parameter)
 
 int mbox_send_wait_init()
 {
-	/* ��ʼ��һ��mailbox */
+	/* 初始化一个mailbox */
 	rt_mb_init(&mb,
-		"mbt",             /* ������mbt */
-		&mb_pool[0],       /* �����õ����ڴ����mb_pool */
-		sizeof(mb_pool)/4,   /* ��С��mb_pool��С����4����Ϊһ���ʼ��Ĵ�С��4�ֽ� */
-		RT_IPC_FLAG_FIFO); /* ����FIFO��ʽ�����̵߳ȴ� */
+		"mbt",             /* 名称是mbt */
+		&mb_pool[0],       /* 邮箱用到的内存池是mb_pool */
+		sizeof(mb_pool)/4,   /* 大小是mb_pool大小除以4，因为一封邮件的大小是4字节 */
+		RT_IPC_FLAG_FIFO); /* 采用FIFO方式进行线程等待 */
 
-	/* �����߳�1 */
+	/* 创建线程1 */
 	tid1 = rt_thread_create("t1",
-		thread1_entry, RT_NULL, /* �߳������thread1_entry, ��ڲ�����RT_NULL */
+		thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */
 		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
 	if (tid1 != RT_NULL)
 		rt_thread_startup(tid1);
 	else
 		tc_stat(TC_STAT_END | TC_STAT_FAILED);
 
-	/* �����߳�2 */
+	/* 创建线程2 */
 	tid2 = rt_thread_create("t2",
-		thread2_entry, RT_NULL, /* �߳������thread2_entry, ��ڲ�����RT_NULL */
+		thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */
 		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
 	if (tid2 != RT_NULL)
 		rt_thread_startup(tid2);
@@ -99,38 +99,38 @@ int mbox_send_wait_init()
 #ifdef RT_USING_TC
 static void _tc_cleanup()
 {
-	/* �����������������󣬽������л��������̣߳�����Ӧ�ж� */
+	/* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */
 	rt_enter_critical();
 
-	/* ɾ���߳� */
+	/* 删除线程 */
 	if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
 		rt_thread_delete(tid1);
 	if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
 		rt_thread_delete(tid2);
 
-	/* ִ������������� */
+	/* 执行邮箱对象脱离 */
 	rt_mb_detach(&mb);
 
-	/* ���������� */
+	/* 调度器解锁 */
 	rt_exit_critical();
 
-	/* ����TestCase״̬ */
+	/* 设置TestCase状态 */
 	tc_done(TC_STAT_PASSED);
 }
 
 int _tc_mbox_send_wait()
 {
-	/* ����TestCase�����ص����� */
+	/* 设置TestCase清理回调函数 */
 	tc_cleanup(_tc_cleanup);
 	mbox_send_wait_init();
 
-	/* ����TestCase���е��ʱ�� */
+	/* 返回TestCase运行的最长时间 */
 	return 300;
 }
-/* ����������finsh shell�� */
+/* 输出函数命令到finsh shell中 */
 FINSH_FUNCTION_EXPORT(_tc_mbox_send_wait, a example of mailbox send wait);
 #else
-/* �û�Ӧ����� */
+/* 用户应用入口 */
 int rt_application_init()
 {
 	mbox_send_wait_init();