void on_event_read(myconn_t* c)
{
while (sizeof(c->readbuff) - c->readbuff_len > 0) {
ssize_t len = read(c->fd, c->readbuff + c->readbuff_len, sizeof(c->readbuff) - c->readbuff_len);
if (len < 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
break;
} else if (errno == EINTR) {
continue; /* or should i check thread cancel point? */
} else { /* most errors detected here */
struct epoll_event e = {
.events = EPOLLERR,
.data.ptr = c,
};
handle_events(&e);
return;
}
} else if (len == 0) { /* most hups detected here */
struct epoll_event e = {
.events = EPOLLHUP,
.data.ptr = c,
};
handle_events(&e);
return;
} else {
c->readbuff_len += len;
c->last_active = time(NULL);
}
}
if (deal_data(c->readbuff, &c->readbuff_len, c->writebuff, &c->writebuff_len)) {
poll_connection(epollfd, EPOLLIN | EPOLLOUT | EPOLLET, c);
}
}
int main(int argc,char **argv)
{
int pipefd[2];
pid_t pid;
/*pipe*/
if (pipe(pipefd) < 0) {
perror("pipe");
exit(1);
}
/*fork*/
pid = fork();
if (pid<0) {
perror("fork()");
exit(1);
}
if (pid==0) {
close(pipefd[1]);
dup2(pipefd[0], 0);
if (pipefd[0] > 0) {
close(pipefd[0]);
}
execl(client_conf.player, "mpg123","-",NULL);
exit(0);
}
close(pipefd[0]);
/*父进程接收网络上的包，交给子进程去播放*/
deal_data(pipefd[1]);
wait(NULL);
exit(0);
}
void on_event_hup(myconn_t* c)
{
if (c->readbuff_len) { /* deal with last words */
c->readbuff[c->readbuff_len++] = '$';
if (deal_data(c->readbuff, &c->readbuff_len, c->writebuff, &c->writebuff_len)) {
poll_connection(epollfd, /* EPOLLIN | */EPOLLOUT | EPOLLET, c); /* no read EOF */
}
} else {
on_event_hup_dft(c);
}
}
int main(void)
{
int ret;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(162);//延时初始化
tim3_init(162);//时钟初始化
sram_init();//SRAM初始化
ads1271_init(0);//ad初始化 参数为0 高速模式
led_init();//LED初始化
read_device_config();//读取flash中设备配置
current_source_init();//恒流源初始化
ethernet_init();//网络初始化
tcp_sever();//建立tcp服务器
while(!is_con());//等待连接
led_link(1);//开启连接灯
while(1)
{
//INT处理部分
ret = deal_int();
if((ret == NET_ERR) || (ret == NET_DISCONNECT))
sys_restart();//重启
//PRE处理部分
ret = deal_pre();
if((ret == NET_ERR) || (ret == NET_DISCONNECT))
sys_restart();//重启
//DIV处理
ret = deal_div();
if((ret == NET_ERR) || (ret == NET_DISCONNECT))
sys_restart();//重启
//STA处理
ret = deal_sta();
if((ret == NET_ERR) || (ret == NET_DISCONNECT))
sys_restart();//重启
//数据传输
while(1)
{
ret = deal_data();
if((ret == NET_ERR) || (ret == NET_DISCONNECT))
sys_restart();//重启
}
}
}
