reduce the size of clip_info event.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@306 bbd45198-f89e-11dd-88c7-29a3b14d5316

1 files changed, 0 insertions, 164 deletions

diff --git a/rtgui/common/rtgui_system.c b/rtgui/common/rtgui_system.c
index e07ba74e9c..d56c1220f0 100644
--- a/rtgui/common/rtgui_system.c
+++ b/rtgui/common/rtgui_system.c
@@ -659,167 +659,3 @@ void rtgui_free(void* ptr)
 	rt_free(ptr);
 }
 
-#if 0
-/*
- * read/write lock implementation
- */
-struct rtgui_rwlock* rtgui_rwlock_create()
-{
-    struct rtgui_rwlock* rwlock;
-
-    rwlock = rtgui_malloc(sizeof(struct rtgui_rwlock));
-    if (rwlock != RT_NULL)
-    {
-        rwlock->stat = RTGUI_RWLOCK_UNLOCK;
-        rwlock->reader_count = 0;
-
-        rt_sem_init(&(rwlock->rd_lock), "rwr", 0, RT_IPC_FLAG_FIFO);
-        rt_sem_init(&(rwlock->wr_lock), "rww", 0, RT_IPC_FLAG_FIFO);
-    }
-
-    return rwlock;
-}
-
-rt_err_t rtgui_rwlock_delete(struct rtgui_rwlock* rwlock)
-{
-    RT_ASSERT(rwlock != RT_NULL);
-
-    rt_sem_detach(&(rwlock->rd_lock));
-    rt_sem_detach(&(rwlock->wr_lock));
-
-    rtgui_free(rwlock);
-
-	return RT_EOK;
-}
-
-rt_err_t rtgui_rwlock_read_take(struct rtgui_rwlock* rwlock, rt_int32_t timeout)
-{
-    rt_err_t result;
-    rt_ubase_t level;
-
-    RT_ASSERT(rwlock != RT_NULL);
-    level = rt_hw_interrupt_disable();
-    switch (rwlock->stat)
-    {
-        case RTGUI_RWLOCK_UNLOCK:
-            break;
-
-        case RTGUI_RWLOCK_READING:
-            if (rwlock->wr_lock.parent.suspend_thread_count > 0)
-            {
-                /* suspend read thread */
-                result = rt_sem_take(&rwlock->rd_lock, timeout);
-                if (result != RT_EOK)
-                {
-                    rt_hw_interrupt_enable(level);
-                    return result;
-                }
-            }
-            break;
-
-        case RTGUI_RWLOCK_WRITTING:
-            /* suspend read thread */
-            result = rt_sem_take(&(rwlock->rd_lock), timeout);
-            if (result != RT_EOK)
-            {
-                rt_hw_interrupt_enable(level);
-                return result;
-            }
-            break;
-    }
-
-    /* get rwlock */
-    rwlock->reader_count ++;
-    rwlock->stat = RTGUI_RWLOCK_READING;
-
-    rt_hw_interrupt_enable(level);
-}
-
-rt_err_t rtgui_rwlock_write_take(struct rtgui_rwlock* rwlock, rt_int32_t timeout)
-{
-    rt_err_t result;
-    rt_ubase_t level;
-
-    RT_ASSERT(rwlock != RT_NULL);
-
-    level = rt_hw_interrupt_disable();
-	rwlock->stat = RTGUI_RWLOCK_WRITTING;
-	result = rt_sem_take(&(rwlock->wr_lock), timeout);
-
-	if (result != RT_EOK)
-	{
-		if (rwlock->wr_lock.parent.suspend_thread_count == 0)
-		{
-			if (rwlock->reader_count > 0)
-				rwlock->stat = RTGUI_RWLOCK_READING;
-		}
-	}
-    rt_hw_interrupt_enable(level);
-
-	return result;
-}
-
-rt_err_t rtgui_rwlock_read_release(struct rtgui_rwlock* rwlock)
-{
-    rt_ubase_t level;
-
-    RT_ASSERT(rwlock != RT_NULL);
-
-    level = rt_hw_interrupt_disable();
-    switch (rwlock->stat)
-    {
-    case RTGUI_RWLOCK_UNLOCK:
-        ASSERT(0);
-        break;
-
-    case RTGUI_RWLOCK_READING:
-        rwlock->reader_count --;
-        if (rwlock->reader_count == 0)
-            rwlock->stat = RTGUI_RWLOCK_UNLOCK;
-        break;
-
-    case RTGUI_RWLOCK_WRITTING:
-        rwlock->reader_count --;
-
-        if (rwlock->reader_count == 0)
-        {
-            /* resume write */
-            rt_sem_release(&(rwlock->wr_lock));
-        }
-        break;
-    }
-    rt_hw_interrupt_enable(level);
-}
-
-rt_err_t rtgui_rwlock_write_release(struct rtgui_rwlock* rwlock)
-{
-    rt_err_t result;
-    rt_ubase_t level;
-
-    RT_ASSERT(rwlock != RT_NULL);
-
-    level = rt_hw_interrupt_disable();
-	result = rt_sem_release(&(rwlock->wr_lock));
-
-	if ((result == RT_EOK) && (rwlock->wr_lock.parent.suspend_thread_count == 0))
-	{
-		rt_uint32_t index, reader_thread_count;
-
-		reader_thread_count = rwlock->rd_lock.parent.suspend_thread_count;
-		if (reader_thread_count > 0)
-		{
-			rwlock->stat = RTGUI_RWLOCK_READING;
-
-			/* resume all reader thread */
-			for (index = 0; index < reader_thread_count; index ++)
-			{
-				rt_sem_release(&(rwlock->rd_lock));
-			}
-		}
-		else rwlock->stat = RTGUI_RWLOCK_UNLOCK;
-	}
-	rt_hw_interrupt_enable(level);
-
-	return result;
-}
-#endif