From 0970cf03a4db015d988b4e3fea6bc80f50394ef0 Mon Sep 17 00:00:00 2001 From: armink Date: Mon, 31 Oct 2016 08:39:49 +0800 Subject: [PATCH] [DeviceDrivers]Reset dataqueue waiting_lwm flag when suspended_push_list is empty --- components/drivers/src/dataqueue.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/components/drivers/src/dataqueue.c b/components/drivers/src/dataqueue.c index dc265fb66..1d458eec8 100644 --- a/components/drivers/src/dataqueue.c +++ b/components/drivers/src/dataqueue.c @@ -20,6 +20,7 @@ * Change Logs: * Date Author Notes * 2012-09-30 Bernard first version. + * 2016-10-31 armink fix some resume push and pop thread bugs */ #include @@ -220,8 +221,6 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue, if ((queue->waiting_lwm == RT_TRUE) && (queue->put_index - queue->get_index) <= queue->lwm) { - queue->waiting_lwm = RT_FALSE; - /* * there is at least one thread in suspended list * and less than low water mark @@ -242,6 +241,7 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue, } else { + queue->waiting_lwm = RT_FALSE; rt_hw_interrupt_enable(level); }