第九节M0命令发送控制
1. 功能描述
发送接收到的M0控制命令.
2. 数据描述
3. 流程图
4. 代码
#include "data_global.h"
extern unsigned char dev_uart_mask;
extern int dev_uart_fd;
extern pthread_cond_t cond_uart_cmd;
extern pthread_mutex_t mutex_uart_cmd;
extern dota_cache_list m0_cache_head, m0_cache_tail;
void *pthread_uart_cmd (void *arg)
{
unsigned char *uart_p = NULL;
dota_cache_list uart_cache_p = NULL;
printf ("pthread_uart_cmd is okn");
while (1)
{
pthread_mutex_lock (&mutex_uart_cmd);
pthread_cond_wait (&cond_uart_cmd, &mutex_uart_cmd);
while ((uart_cache_p = GetCacheNode (m0_cache_head, &m0_cache_tail)) != NULL)
{
pthread_mutex_unlock (&mutex_uart_cmd);
uart_p = (unsigned char *)uart_cache_p->data;
dev_uart_mask = *uart_p;
write (dev_uart_fd, &dev_uart_mask, 1);
free (uart_p);
uart_p = NULL;
free (uart_cache_p);
uart_cache_p = NULL;
usleep (200000);
pthread_mutex_lock (&mutex_uart_cmd);
}
pthread_mutex_unlock (&mutex_uart_cmd);
}
}
