mirror of
https://github.com/wangyu-/UDPspeeder.git
synced 2025-01-19 06:19:34 +08:00
440 lines
11 KiB
C++
440 lines
11 KiB
C++
#include "tunnel.h"
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void data_from_local_or_fec_timeout(conn_info_t & conn_info,int is_time_out)
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{
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fd64_t &remote_fd64=conn_info.remote_fd64;
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int & local_listen_fd=conn_info.local_listen_fd;
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char data[buf_len];
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int data_len;
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address_t addr;
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u32_t conv;
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int out_n;char **out_arr;int *out_len;my_time_t *out_delay;
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dest_t dest;
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dest.type=type_fd64;
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dest.inner.fd64=remote_fd64;
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dest.cook=1;
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if(is_time_out)
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{
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//fd64_t fd64=events[idx].data.u64;
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mylog(log_trace,"events[idx].data.u64 == conn_info.fec_encode_manager.get_timer_fd64()\n");
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//uint64_t value;
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//if(!fd_manager.exist(fd64)) //fd64 has been closed
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//{
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// mylog(log_trace,"!fd_manager.exist(fd64)");
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// continue;
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//}
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//if((ret=read(fd_manager.to_fd(fd64), &value, 8))!=8)
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//{
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// mylog(log_trace,"(ret=read(fd_manager.to_fd(fd64), &value, 8))!=8,ret=%d\n",ret);
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// continue;
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//}
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//if(value==0)
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//{
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// mylog(log_debug,"value==0\n");
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// continue;
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//}
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//assert(value==1);
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from_normal_to_fec(conn_info,0,0,out_n,out_arr,out_len,out_delay);
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}
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else//events[idx].data.u64 == (u64_t)local_listen_fd
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{
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mylog(log_trace,"events[idx].data.u64 == (u64_t)local_listen_fd\n");
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address_t::storage_t udp_new_addr_in={0};
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socklen_t udp_new_addr_len = sizeof(address_t::storage_t);
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if ((data_len = recvfrom(local_listen_fd, data, max_data_len, 0,
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(struct sockaddr *) &udp_new_addr_in, &udp_new_addr_len)) == -1) {
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mylog(log_debug,"recv_from error,this shouldnt happen,err=%s,but we can try to continue\n",get_sock_error());
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return;
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};
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if(!disable_mtu_warn&&data_len>=mtu_warn)
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{
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mylog(log_warn,"huge packet,data len=%d (>=%d).strongly suggested to set a smaller mtu at upper level,to get rid of this warn\n ",data_len,mtu_warn);
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}
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addr.from_sockaddr((struct sockaddr *) &udp_new_addr_in,udp_new_addr_len);
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mylog(log_trace,"Received packet from %s, len: %d\n", addr.get_str(),data_len);
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//u64_t u64=ip_port.to_u64();
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if(!conn_info.conv_manager.c.is_data_used(addr))
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{
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if(conn_info.conv_manager.c.get_size() >=max_conv_num)
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{
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mylog(log_warn,"ignored new udp connect bc max_conv_num exceed\n");
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return;
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}
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conv=conn_info.conv_manager.c.get_new_conv();
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conn_info.conv_manager.c.insert_conv(conv,addr);
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mylog(log_info,"new packet from %s,conv_id=%x\n",addr.get_str(),conv);
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}
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else
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{
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conv=conn_info.conv_manager.c.find_conv_by_data(addr);
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mylog(log_trace,"conv=%d\n",conv);
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}
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conn_info.conv_manager.c.update_active_time(conv);
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char * new_data;
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int new_len;
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put_conv(conv,data,data_len,new_data,new_len);
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mylog(log_trace,"data_len=%d new_len=%d\n",data_len,new_len);
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from_normal_to_fec(conn_info,new_data,new_len,out_n,out_arr,out_len,out_delay);
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}
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mylog(log_trace,"out_n=%d\n",out_n);
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for(int i=0;i<out_n;i++)
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{
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delay_send(out_delay[i],dest,out_arr[i],out_len[i]);
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}
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}
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static void local_listen_cb(struct ev_loop *loop, struct ev_io *watcher, int revents)
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{
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assert(!(revents&EV_ERROR));
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conn_info_t & conn_info= *((conn_info_t*)watcher->data);
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data_from_local_or_fec_timeout(conn_info,0);
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}
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static void remote_cb(struct ev_loop *loop, struct ev_io *watcher, int revents)
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{
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assert(!(revents&EV_ERROR));
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conn_info_t & conn_info= *((conn_info_t*)watcher->data);
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char data[buf_len];
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if(!fd_manager.exist(watcher->u64)) //fd64 has been closed
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{
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mylog(log_trace,"!fd_manager.exist(events[idx].data.u64)");
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return;
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}
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fd64_t &remote_fd64=conn_info.remote_fd64;
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int &remote_fd=conn_info.remote_fd;
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assert(watcher->u64==remote_fd64);
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int fd=fd_manager.to_fd(remote_fd64);
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int data_len =recv(fd,data,max_data_len,0);
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mylog(log_trace, "received data from udp fd %d, len=%d\n", remote_fd,data_len);
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if(data_len<0)
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{
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if(get_sock_errno()==ECONNREFUSED)
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{
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mylog(log_debug, "recv failed %d ,udp_fd%d,errno:%s\n", data_len,remote_fd,get_sock_error());
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}
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mylog(log_warn, "recv failed %d ,udp_fd%d,errno:%s\n", data_len,remote_fd,get_sock_error());
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return;
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}
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if(!disable_mtu_warn&&data_len>mtu_warn)
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{
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mylog(log_warn,"huge packet,data len=%d (>%d).strongly suggested to set a smaller mtu at upper level,to get rid of this warn\n ",data_len,mtu_warn);
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}
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if(de_cook(data,data_len)!=0)
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{
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mylog(log_debug,"de_cook error");
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return;
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}
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int out_n;char **out_arr;int *out_len;my_time_t *out_delay;
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from_fec_to_normal(conn_info,data,data_len,out_n,out_arr,out_len,out_delay);
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mylog(log_trace,"out_n=%d\n",out_n);
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for(int i=0;i<out_n;i++)
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{
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u32_t conv;
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char *new_data;
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int new_len;
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if(get_conv(conv,out_arr[i],out_len[i],new_data,new_len)!=0)
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{
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mylog(log_debug,"get_conv(conv,out_arr[i],out_len[i],new_data,new_len)!=0");
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continue;
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}
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if(!conn_info.conv_manager.c.is_conv_used(conv))
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{
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mylog(log_trace,"!conn_info.conv_manager.is_conv_used(conv)");
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continue;
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}
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conn_info.conv_manager.c.update_active_time(conv);
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address_t addr=conn_info.conv_manager.c.find_data_by_conv(conv);
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dest_t dest;
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dest.inner.fd_addr.fd=conn_info.local_listen_fd;
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dest.inner.fd_addr.addr=addr;
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dest.type=type_fd_addr;
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delay_send(out_delay[i],dest,new_data,new_len);
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}
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}
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static void fifo_cb(struct ev_loop *loop, struct ev_io *watcher, int revents)
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{
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assert(!(revents&EV_ERROR));
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int fifo_fd=watcher->fd;
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char buf[buf_len];
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int len=read (fifo_fd, buf, sizeof (buf));
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if(len<0)
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{
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mylog(log_warn,"fifo read failed len=%d,errno=%s\n",len,get_sock_error());
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return;
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}
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buf[len]=0;
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handle_command(buf);
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}
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static void delay_manager_cb(struct ev_loop *loop, struct ev_timer *watcher, int revents)
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{
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assert(!(revents&EV_ERROR));
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//uint64_t value;
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//read(delay_manager.get_timer_fd(), &value, 8);
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//mylog(log_trace,"events[idx].data.u64 == (u64_t)delay_manager.get_timer_fd()\n");
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//do nothing
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}
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static void fec_encode_cb(struct ev_loop *loop, struct ev_timer *watcher, int revents)
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{
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assert(!(revents&EV_ERROR));
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conn_info_t & conn_info= *((conn_info_t*)watcher->data);
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data_from_local_or_fec_timeout(conn_info,1);
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}
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static void conn_timer_cb(struct ev_loop *loop, struct ev_timer *watcher, int revents)
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{
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assert(!(revents&EV_ERROR));
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uint64_t value;
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conn_info_t & conn_info= *((conn_info_t*)watcher->data);
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//read(conn_info.timer.get_timer_fd(), &value, 8);
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conn_info.conv_manager.c.clear_inactive();
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mylog(log_trace,"events[idx].data.u64==(u64_t)conn_info.timer.get_timer_fd()\n");
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conn_info.stat.report_as_client();
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if(debug_force_flush_fec)
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{
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int out_n;char **out_arr;int *out_len;my_time_t *out_delay;
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dest_t dest;
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dest.type=type_fd64;
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dest.inner.fd64=conn_info.remote_fd64;
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dest.cook=1;
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from_normal_to_fec(conn_info,0,0,out_n,out_arr,out_len,out_delay);
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for(int i=0;i<out_n;i++)
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{
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delay_send(out_delay[i],dest,out_arr[i],out_len[i]);
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}
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}
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}
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static void prepare_cb(struct ev_loop *loop, struct ev_prepare *watcher, int revents)
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{
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assert(!(revents&EV_ERROR));
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delay_manager.check();
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}
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int tunnel_client_event_loop()
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{
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int i, j, k;int ret;
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int yes = 1;
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//int epoll_fd;
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conn_info_t *conn_info_p=new conn_info_t;
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conn_info_t &conn_info=*conn_info_p; //huge size of conn_info,do not allocate on stack
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int &local_listen_fd=conn_info.local_listen_fd;
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new_listen_socket2(local_listen_fd,local_addr);
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//epoll_fd = epoll_create1(0);
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//assert(epoll_fd>0);
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//const int max_events = 4096;
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//struct epoll_event ev, events[max_events];
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//if (epoll_fd < 0) {
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// mylog(log_fatal,"epoll return %d\n", epoll_fd);
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// myexit(-1);
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//}
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struct ev_loop * loop= ev_default_loop(0);
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assert(loop != NULL);
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conn_info.loop=loop;
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//ev.events = EPOLLIN;
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//ev.data.u64 = local_listen_fd;
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//ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, local_listen_fd, &ev);
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//if (ret!=0) {
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// mylog(log_fatal,"add udp_listen_fd error\n");
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// myexit(-1);
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//}
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struct ev_io local_listen_watcher;
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local_listen_watcher.data=&conn_info;
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ev_io_init(&local_listen_watcher, local_listen_cb, local_listen_fd, EV_READ);
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ev_io_start(loop, &local_listen_watcher);
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int & remote_fd=conn_info.remote_fd;
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fd64_t &remote_fd64=conn_info.remote_fd64;
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assert(new_connected_socket2(remote_fd,remote_addr)==0);
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remote_fd64=fd_manager.create(remote_fd);
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mylog(log_debug,"remote_fd64=%llu\n",remote_fd64);
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//ev.events = EPOLLIN;
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//ev.data.u64 = remote_fd64;
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//ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, remote_fd, &ev);
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//if (ret!= 0) {
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// mylog(log_fatal,"add raw_fd error\n");
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// myexit(-1);
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//}
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struct ev_io remote_watcher;
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remote_watcher.data=&conn_info;
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remote_watcher.u64=remote_fd64;
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ev_io_init(&remote_watcher, remote_cb, remote_fd, EV_READ);
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ev_io_start(loop, &remote_watcher);
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//ev.events = EPOLLIN;
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//ev.data.u64 = delay_manager.get_timer_fd();
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//mylog(log_debug,"delay_manager.get_timer_fd()=%d\n",delay_manager.get_timer_fd());
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//ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, delay_manager.get_timer_fd(), &ev);
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//if (ret!= 0) {
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// mylog(log_fatal,"add delay_manager.get_timer_fd() error\n");
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// myexit(-1);
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//}
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delay_manager.set_loop_and_cb(loop,delay_manager_cb);
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conn_info.fec_encode_manager.set_data(&conn_info);
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conn_info.fec_encode_manager.set_loop_and_cb(loop,fec_encode_cb);
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//u64_t tmp_fd64=conn_info.fec_encode_manager.get_timer_fd64();
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//ev.events = EPOLLIN;
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//ev.data.u64 = tmp_fd64;
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//mylog(log_debug,"conn_info.fec_encode_manager.get_timer_fd64()=%llu\n",conn_info.fec_encode_manager.get_timer_fd64());
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//ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd_manager.to_fd(tmp_fd64), &ev);
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//if (ret!= 0) {
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// mylog(log_fatal,"add fec_encode_manager.get_timer_fd64() error\n");
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// myexit(-1);
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//}
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conn_info.timer.data=&conn_info;
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ev_init(&conn_info.timer,conn_timer_cb);
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ev_timer_set(&conn_info.timer, 0, timer_interval/1000.0 );
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ev_timer_start(loop,&conn_info.timer);
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//conn_info.timer.add_fd_to_epoll(epoll_fd);
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//conn_info.timer.set_timer_repeat_us(timer_interval*1000);
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//mylog(log_debug,"conn_info.timer.get_timer_fd()=%d\n",conn_info.timer.get_timer_fd());
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struct ev_io fifo_watcher;
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int fifo_fd=-1;
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if(fifo_file[0]!=0)
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{
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fifo_fd=create_fifo(fifo_file);
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//ev.events = EPOLLIN;
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//ev.data.u64 = fifo_fd;
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//ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fifo_fd, &ev);
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//if (ret!= 0) {
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// mylog(log_fatal,"add fifo_fd to epoll error %s\n",strerror(errno));
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// myexit(-1);
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//}
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mylog(log_info,"fifo_file=%s\n",fifo_file);
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ev_io_init(&fifo_watcher, fifo_cb, fifo_fd, EV_READ);
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ev_io_start(loop, &fifo_watcher);
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}
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ev_prepare prepare_watcher;
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ev_init(&prepare_watcher,prepare_cb);
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ev_prepare_start(loop,&prepare_watcher);
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mylog(log_info,"now listening at %s\n",local_addr.get_str());
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ev_run(loop, 0);
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mylog(log_warn,"ev_run returned\n");
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myexit(0);
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/*
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while(1)////////////////////////
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{
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if(about_to_exit) myexit(0);
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int nfds = epoll_wait(epoll_fd, events, max_events, 180 * 1000);
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if (nfds < 0) { //allow zero
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if(errno==EINTR )
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{
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mylog(log_info,"epoll interrupted by signal continue\n");
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}
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else
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{
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mylog(log_fatal,"epoll_wait return %d,%s\n", nfds,strerror(errno));
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myexit(-1);
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}
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}
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int idx;
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for (idx = 0; idx < nfds; ++idx) {
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if(events[idx].data.u64==(u64_t)conn_info.timer.get_timer_fd())
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{
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}
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else if (events[idx].data.u64 == (u64_t)fifo_fd)
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{
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}
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else if (events[idx].data.u64 == (u64_t)local_listen_fd||events[idx].data.u64 == conn_info.fec_encode_manager.get_timer_fd64())
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{
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}
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else if (events[idx].data.u64 == (u64_t)delay_manager.get_timer_fd()) {
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}
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else if(events[idx].data.u64>u32_t(-1) )
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{
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}
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else
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{
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mylog(log_fatal,"unknown fd,this should never happen\n");
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myexit(-1);
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}
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}
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//delay_manager.check();
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}*/
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return 0;
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}
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