rt-thread/components/vbus/watermark_queue.c

53 lines
1.3 KiB
C

/*
* COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2014-04-16 Grissiom first version
*/
#include <rthw.h>
#include <rtthread.h>
#include "watermark_queue.h"
void rt_wm_que_set_mark(struct rt_watermark_queue *wg,
unsigned int low, unsigned int high)
{
RT_ASSERT(low <= high);
wg->high_mark = high;
wg->low_mark = low;
}
void rt_wm_que_init(struct rt_watermark_queue *wg,
unsigned int low, unsigned int high)
{
rt_wm_que_set_mark(wg, low, high);
rt_list_init(&wg->suspended_threads);
wg->level = 0;
}
void rt_wm_que_dump(struct rt_watermark_queue *wg)
{
struct rt_list_node *node;
rt_kprintf("wg %p: low: %d, high: %d, cur: %d\n",
wg, wg->low_mark, wg->high_mark, wg->level);
rt_kprintf("thread suspend:");
for (node = wg->suspended_threads.next;
node != &wg->suspended_threads;
node = node->next)
{
rt_thread_t thread;
thread = rt_list_entry(wg->suspended_threads.next,
struct rt_thread,
tlist);
rt_kprintf(" %.*s", RT_NAME_MAX, thread->name);
}
rt_kprintf("\n");
}