mirror of
https://github.com/wangyu-/UDPspeeder.git
synced 2025-01-18 22:09:35 +08:00
1770 lines
46 KiB
C++
1770 lines
46 KiB
C++
#include "common.h"
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#include "log.h"
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#include "git_version.h"
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#include "lib/rs.h"
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#include "packet.h"
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#include "connection.h"
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#include "fd_manager.h"
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#include "delay_manager.h"
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#include "fec_manager.h"
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using namespace std;
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typedef unsigned long long u64_t; //this works on most platform,avoid using the PRId64
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typedef long long i64_t;
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typedef unsigned int u32_t;
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typedef int i32_t;
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//int dup_num=1;
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//int dup_delay_min=20; //0.1ms
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//int dup_delay_max=20;
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//int random_number_fd=-1;
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char fifo_file[1000]="";
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int mtu_warn=1350;
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int disable_mtu_warn=1;
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int disable_fec=0;
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int debug_force_flush_fec=0;
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int jitter_min=0*1000;
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int jitter_max=0*1000;
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int output_interval_min=0*1000;
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int output_interval_max=0*1000;
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int fix_latency=0;
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u32_t local_ip_uint32,remote_ip_uint32=0;
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char local_ip[100], remote_ip[100];
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int local_port = -1, remote_port = -1;
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//u64_t last_report_time=0;
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conn_manager_t conn_manager;
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delay_manager_t delay_manager;
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fd_manager_t fd_manager;
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int time_mono_test=1;
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const int disable_conv_clear=0;
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int socket_buf_size=1024*1024;
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int VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV;
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int init_listen_socket()
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{
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local_listen_fd =socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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int yes = 1;
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//setsockopt(udp_fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes));
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struct sockaddr_in local_me={0};
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socklen_t slen = sizeof(sockaddr_in);
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//memset(&local_me, 0, sizeof(local_me));
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local_me.sin_family = AF_INET;
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local_me.sin_port = htons(local_port);
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local_me.sin_addr.s_addr = local_ip_uint32;
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if (bind(local_listen_fd, (struct sockaddr*) &local_me, slen) == -1) {
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mylog(log_fatal,"socket bind error\n");
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//perror("socket bind error");
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myexit(1);
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}
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setnonblocking(local_listen_fd);
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set_buf_size(local_listen_fd,socket_buf_size);
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mylog(log_debug,"local_listen_fd=%d\n,",local_listen_fd);
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return 0;
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}
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int new_connected_socket(int &fd,u32_t ip,int port)
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{
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char ip_port[40];
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sprintf(ip_port,"%s:%d",my_ntoa(ip),port);
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struct sockaddr_in remote_addr_in = { 0 };
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socklen_t slen = sizeof(sockaddr_in);
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//memset(&remote_addr_in, 0, sizeof(remote_addr_in));
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remote_addr_in.sin_family = AF_INET;
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remote_addr_in.sin_port = htons(port);
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remote_addr_in.sin_addr.s_addr = ip;
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fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if (fd < 0) {
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mylog(log_warn, "[%s]create udp_fd error\n", ip_port);
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return -1;
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}
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setnonblocking(fd);
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set_buf_size(fd, socket_buf_size);
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mylog(log_debug, "[%s]created new udp_fd %d\n", ip_port, fd);
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int ret = connect(fd, (struct sockaddr *) &remote_addr_in, slen);
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if (ret != 0) {
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mylog(log_warn, "[%s]fd connect fail\n",ip_port);
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close(fd);
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return -1;
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}
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return 0;
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}
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int delay_send(my_time_t delay,const dest_t &dest,char *data,int len)
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{
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//int rand=random()%100;
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//mylog(log_info,"rand = %d\n",rand);
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if (dest.cook&&random_drop != 0) {
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if (get_true_random_number() % 10000 < (u32_t) random_drop) {
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return 0;
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}
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}
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return delay_manager.add(delay,dest,data,len);;
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}
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int from_normal_to_fec(conn_info_t & conn_info,char *data,int len,int & out_n,char **&out_arr,int *&out_len,my_time_t *&out_delay)
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{
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static my_time_t out_delay_buf[max_fec_packet_num+100]={0};
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//static int out_len_buf[max_fec_packet_num+100]={0};
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//static int counter=0;
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out_delay=out_delay_buf;
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//out_len=out_len_buf;
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inner_stat_t &inner_stat=conn_info.stat.normal_to_fec;
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if(disable_fec)
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{
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assert(data!=0);
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inner_stat.input_packet_num++;
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inner_stat.input_packet_size+=len;
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inner_stat.output_packet_num++;
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inner_stat.output_packet_size+=len;
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if(data==0) return 0;
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out_n=1;
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static char *data_static;
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data_static=data;
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static int len_static;
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len_static=len;
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out_arr=&data_static;
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out_len=&len_static;
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out_delay[0]=0;
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}
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else
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{
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if(data!=0)
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{
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inner_stat.input_packet_num++;
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inner_stat.input_packet_size+=len;
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}
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//counter++;
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conn_info.fec_encode_manager.input(data,len);
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//if(counter%5==0)
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//conn_info.fec_encode_manager.input(0,0);
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//int n;
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//char **s_arr;
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//int s_len;
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conn_info.fec_encode_manager.output(out_n,out_arr,out_len);
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if(out_n>0)
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{
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my_time_t common_latency=0;
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my_time_t first_packet_time=conn_info.fec_encode_manager.get_first_packet_time();
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if(fix_latency==1&&conn_info.fec_encode_manager.get_type()==0)
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{
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my_time_t current_time=get_current_time_us();
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my_time_t tmp;
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assert(first_packet_time!=0);
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//mylog(log_info,"current_time=%llu first_packlet_time=%llu fec_pending_time=%llu\n",current_time,first_packet_time,(my_time_t)fec_pending_time);
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if((my_time_t)conn_info.fec_encode_manager.get_pending_time() >=(current_time - first_packet_time))
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{
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tmp=(my_time_t)conn_info.fec_encode_manager.get_pending_time()-(current_time - first_packet_time);
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//mylog(log_info,"tmp=%llu\n",tmp);
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}
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else
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{
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tmp=0;
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//mylog(log_info,"0\n");
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}
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common_latency+=tmp;
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}
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common_latency+=random_between(jitter_min,jitter_max);
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out_delay_buf[0]=common_latency;
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for(int i=1;i<out_n;i++)
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{
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out_delay_buf[i]=out_delay_buf[i-1]+ (my_time_t)( random_between(output_interval_min,output_interval_max)/(out_n-1) );
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}
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}
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}
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mylog(log_trace,"from_normal_to_fec input_len=%d,output_n=%d\n",len,out_n);
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if(out_n>0)
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{
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log_bare(log_trace,"seq= %u ",read_u32(out_arr[0]));
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}
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for(int i=0;i<out_n;i++)
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{
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inner_stat.output_packet_num++;
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inner_stat.output_packet_size+=out_len[i];
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log_bare(log_trace,"%d ",out_len[i]);
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}
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log_bare(log_trace,"\n");
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//for(int i=0;i<n;i++)
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//{
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//delay_send(0,dest,s_arr[i],s_len);
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//}
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//delay_send(0,dest,data,len);
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//delay_send(1000*1000,dest,data,len);
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return 0;
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}
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int from_fec_to_normal(conn_info_t & conn_info,char *data,int len,int & out_n,char **&out_arr,int *&out_len,my_time_t *&out_delay)
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{
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static my_time_t out_delay_buf[max_blob_packet_num+100]={0};
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out_delay=out_delay_buf;
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inner_stat_t &inner_stat=conn_info.stat.fec_to_normal;
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if(disable_fec)
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{
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assert(data!=0);
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inner_stat.input_packet_num++;
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inner_stat.input_packet_size+=len;
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inner_stat.output_packet_num++;
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inner_stat.output_packet_size+=len;
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if(data==0) return 0;
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out_n=1;
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static char *data_static;
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data_static=data;
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static int len_static;
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len_static=len;
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out_arr=&data_static;
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out_len=&len_static;
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out_delay[0]=0;
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}
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else
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{
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if(data!=0)
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{
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inner_stat.input_packet_num++;
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inner_stat.input_packet_size+=len;
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}
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conn_info.fec_decode_manager.input(data,len);
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//int n;char ** s_arr;int* len_arr;
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conn_info.fec_decode_manager.output(out_n,out_arr,out_len);
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for(int i=0;i<out_n;i++)
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{
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out_delay_buf[i]=0;
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inner_stat.output_packet_num++;
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inner_stat.output_packet_size+=out_len[i];
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}
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}
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mylog(log_trace,"from_fec_to_normal input_len=%d,output_n=%d,input_seq=%u\n",len,out_n,read_u32(data));
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// printf("<n:%d>",n);
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/*
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for(int i=0;i<n;i++)
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{
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delay_send(0,dest,s_arr[i],len_arr[i]);
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//s_arr[i][len_arr[i]]=0;
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//printf("<%s>\n",s_arr[i]);
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}*/
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//my_send(dest,data,len);
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return 0;
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}
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int print_parameter()
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{
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mylog(log_info,"jitter_min=%d jitter_max=%d output_interval_min=%d output_interval_max=%d fec_timeout=%d fec_data_num=%d fec_redundant_num=%d fec_mtu=%d fec_queue_len=%d fec_mode=%d\n",
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jitter_min/1000,jitter_max/1000,output_interval_min/1000,output_interval_max/1000,g_fec_timeout/1000,
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g_fec_data_num,g_fec_redundant_num,g_fec_mtu,g_fec_queue_len,g_fec_mode);
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return 0;
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}
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int handle_command(char *s)
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{
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int len=strlen(s);
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while(len>=1&&s[len-1]=='\n')
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s[len-1]=0;
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mylog(log_info,"got data from fifo,len=%d,s=[%s]\n",len,s);
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int a=-1,b=-1;
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if(strncmp(s,"fec",strlen("fec"))==0)
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{
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mylog(log_info,"got command [fec]\n");
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sscanf(s,"fec %d:%d",&a,&b);
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if(a<1||b<0||a+b>254)
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{
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mylog(log_warn,"invaild value\n");
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return -1;
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}
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g_fec_data_num=a;
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g_fec_redundant_num=b;
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}
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else if(strncmp(s,"mtu",strlen("mtu"))==0)
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{
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mylog(log_info,"got command [mtu]\n");
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sscanf(s,"mtu %d",&a);
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if(a<100||a>2000)
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{
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mylog(log_warn,"invaild value\n");
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return -1;
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}
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g_fec_mtu=a;
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}
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else if(strncmp(s,"queue-len",strlen("queue-len"))==0)
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{
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mylog(log_info,"got command [queue-len]\n");
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sscanf(s,"queue-len %d",&a);
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if(a<1||a>10000)
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{
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mylog(log_warn,"invaild value\n");
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return -1;
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}
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g_fec_queue_len=a;
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}
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else if(strncmp(s,"mode",strlen("mode"))==0)
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{
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mylog(log_info,"got command [mode]\n");
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sscanf(s,"mode %d",&a);
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if(a!=0&&a!=1)
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{
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mylog(log_warn,"invaild value\n");
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return -1;
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}
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g_fec_mode=a;
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}
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else if(strncmp(s,"timeout",strlen("timeout"))==0)
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{
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mylog(log_info,"got command [timeout]\n");
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sscanf(s,"timeout %d",&a);
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if(a<0||a>1000)
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{
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mylog(log_warn,"invaild value\n");
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return -1;
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}
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g_fec_timeout=a*1000;
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}
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else
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{
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mylog(log_info,"unknown command\n");
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}
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print_parameter();
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return 0;
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}
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int client_event_loop()
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{
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//char buf[buf_len];
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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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int remote_fd;
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fd64_t remote_fd64;
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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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//conn_info.conv_manager.reserve();
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//conn_info.fec_encode_manager.re_init(fec_data_num,fec_redundant_num,fec_mtu,fec_pending_num,fec_pending_time,fec_type);
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init_listen_socket();
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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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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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assert(new_connected_socket(remote_fd,remote_ip_uint32,remote_port)==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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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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u64_t fd64=conn_info.fec_encode_manager.get_timer_fd64();
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ev.events = EPOLLIN;
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ev.data.u64 = 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(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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//my_timer_t 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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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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}
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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);
|
|
if (nfds < 0) { //allow zero
|
|
if(errno==EINTR )
|
|
{
|
|
mylog(log_info,"epoll interrupted by signal\n");
|
|
myexit(0);
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal,"epoll_wait return %d\n", nfds);
|
|
myexit(-1);
|
|
}
|
|
}
|
|
int idx;
|
|
for (idx = 0; idx < nfds; ++idx) {
|
|
if(events[idx].data.u64==(u64_t)conn_info.timer.get_timer_fd())
|
|
{
|
|
uint64_t value;
|
|
read(conn_info.timer.get_timer_fd(), &value, 8);
|
|
conn_info.conv_manager.clear_inactive();
|
|
mylog(log_trace,"events[idx].data.u64==(u64_t)conn_info.timer.get_timer_fd()\n");
|
|
|
|
conn_info.stat.report_as_client();
|
|
|
|
if(debug_force_flush_fec)
|
|
{
|
|
int out_n;char **out_arr;int *out_len;my_time_t *out_delay;
|
|
dest_t dest;
|
|
dest.type=type_fd64;
|
|
dest.inner.fd64=remote_fd64;
|
|
dest.cook=1;
|
|
from_normal_to_fec(conn_info,0,0,out_n,out_arr,out_len,out_delay);
|
|
for(int i=0;i<out_n;i++)
|
|
{
|
|
delay_send(out_delay[i],dest,out_arr[i],out_len[i]);
|
|
}
|
|
}
|
|
}
|
|
else if (events[idx].data.u64 == (u64_t)fifo_fd)
|
|
{
|
|
char buf[buf_len];
|
|
int len=read (fifo_fd, buf, sizeof (buf));
|
|
if(len<0)
|
|
{
|
|
mylog(log_warn,"fifo read failed len=%d,errno=%s\n",len,strerror(errno));
|
|
continue;
|
|
}
|
|
buf[len]=0;
|
|
handle_command(buf);
|
|
}
|
|
else if (events[idx].data.u64 == (u64_t)local_listen_fd||events[idx].data.u64 == conn_info.fec_encode_manager.get_timer_fd64())
|
|
{
|
|
char data[buf_len];
|
|
int data_len;
|
|
ip_port_t ip_port;
|
|
u32_t conv;
|
|
int out_n;char **out_arr;int *out_len;my_time_t *out_delay;
|
|
dest_t dest;
|
|
dest.type=type_fd64;
|
|
dest.inner.fd64=remote_fd64;
|
|
dest.cook=1;
|
|
|
|
if(events[idx].data.u64 == conn_info.fec_encode_manager.get_timer_fd64())
|
|
{
|
|
mylog(log_trace,"events[idx].data.u64 == conn_info.fec_encode_manager.get_timer_fd64()\n");
|
|
|
|
//mylog(log_info,"timer!!!\n");
|
|
uint64_t value;
|
|
if(!fd_manager.exist(fd64)) //fd64 has been closed
|
|
{
|
|
mylog(log_trace,"!fd_manager.exist(fd64)");
|
|
continue;
|
|
}
|
|
if((ret=read(fd_manager.to_fd(fd64), &value, 8))!=8)
|
|
{
|
|
mylog(log_trace,"(ret=read(fd_manager.to_fd(fd64), &value, 8))!=8,ret=%d\n",ret);
|
|
continue;
|
|
}
|
|
if(value==0)
|
|
{
|
|
mylog(log_debug,"value==0\n");
|
|
continue;
|
|
}
|
|
assert(value==1);
|
|
from_normal_to_fec(conn_info,0,0,out_n,out_arr,out_len,out_delay);
|
|
//from_normal_to_fec(conn_info,0,0,out_n,out_arr,out_len,out_delay);
|
|
}
|
|
else//events[idx].data.u64 == (u64_t)local_listen_fd
|
|
{
|
|
mylog(log_trace,"events[idx].data.u64 == (u64_t)local_listen_fd\n");
|
|
struct sockaddr_in udp_new_addr_in={0};
|
|
socklen_t udp_new_addr_len = sizeof(sockaddr_in);
|
|
if ((data_len = recvfrom(local_listen_fd, data, max_data_len, 0,
|
|
(struct sockaddr *) &udp_new_addr_in, &udp_new_addr_len)) == -1) {
|
|
mylog(log_error,"recv_from error,this shouldnt happen,err=%s\n",strerror(errno));
|
|
continue;
|
|
//mylog(log_error,"recv_from error,this shouldnt happen at client\n");
|
|
//myexit(1);
|
|
};
|
|
|
|
if(!disable_mtu_warn&&data_len>=mtu_warn)
|
|
{
|
|
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);
|
|
}
|
|
mylog(log_trace,"Received packet from %s:%d,len: %d\n", inet_ntoa(udp_new_addr_in.sin_addr),
|
|
ntohs(udp_new_addr_in.sin_port),data_len);
|
|
|
|
ip_port.ip=udp_new_addr_in.sin_addr.s_addr;
|
|
ip_port.port=ntohs(udp_new_addr_in.sin_port);
|
|
|
|
u64_t u64=ip_port.to_u64();
|
|
|
|
if(!conn_info.conv_manager.is_u64_used(u64))
|
|
{
|
|
if(conn_info.conv_manager.get_size() >=max_conv_num)
|
|
{
|
|
mylog(log_warn,"ignored new udp connect bc max_conv_num exceed\n");
|
|
continue;
|
|
}
|
|
conv=conn_info.conv_manager.get_new_conv();
|
|
conn_info.conv_manager.insert_conv(conv,u64);
|
|
mylog(log_info,"new packet from %s:%d,conv_id=%x\n",inet_ntoa(udp_new_addr_in.sin_addr),ntohs(udp_new_addr_in.sin_port),conv);
|
|
}
|
|
else
|
|
{
|
|
conv=conn_info.conv_manager.find_conv_by_u64(u64);
|
|
mylog(log_trace,"conv=%d\n",conv);
|
|
}
|
|
conn_info.conv_manager.update_active_time(conv);
|
|
char * new_data;
|
|
int new_len;
|
|
put_conv(conv,data,data_len,new_data,new_len);
|
|
|
|
|
|
mylog(log_trace,"data_len=%d new_len=%d\n",data_len,new_len);
|
|
//dest.conv=conv;
|
|
from_normal_to_fec(conn_info,new_data,new_len,out_n,out_arr,out_len,out_delay);
|
|
|
|
}
|
|
mylog(log_trace,"out_n=%d\n",out_n);
|
|
for(int i=0;i<out_n;i++)
|
|
{
|
|
delay_send(out_delay[i],dest,out_arr[i],out_len[i]);
|
|
}
|
|
//my_send(dest,data,data_len);
|
|
}
|
|
else if (events[idx].data.u64 == (u64_t)delay_manager.get_timer_fd()) {
|
|
uint64_t value;
|
|
read(delay_manager.get_timer_fd(), &value, 8);
|
|
mylog(log_trace,"events[idx].data.u64 == (u64_t)delay_manager.get_timer_fd()\n");
|
|
//printf("<timerfd_triggered, %d>",delay_mp.size());
|
|
//fflush(stdout);
|
|
}
|
|
else if(events[idx].data.u64>u32_t(-1) )
|
|
{
|
|
char data[buf_len];
|
|
if(!fd_manager.exist(events[idx].data.u64)) //fd64 has been closed
|
|
{
|
|
mylog(log_trace,"!fd_manager.exist(events[idx].data.u64)");
|
|
continue;
|
|
}
|
|
assert(events[idx].data.u64==remote_fd64);
|
|
int fd=fd_manager.to_fd(remote_fd64);
|
|
int data_len =recv(fd,data,max_data_len,0);
|
|
mylog(log_trace, "received data from udp fd %d, len=%d\n", remote_fd,data_len);
|
|
if(data_len<0)
|
|
{
|
|
if(errno==ECONNREFUSED)
|
|
{
|
|
//conn_manager.clear_list.push_back(udp_fd);
|
|
mylog(log_debug, "recv failed %d ,udp_fd%d,errno:%s\n", data_len,remote_fd,strerror(errno));
|
|
}
|
|
|
|
mylog(log_warn, "recv failed %d ,udp_fd%d,errno:%s\n", data_len,remote_fd,strerror(errno));
|
|
continue;
|
|
}
|
|
if(!disable_mtu_warn&&data_len>mtu_warn)
|
|
{
|
|
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);
|
|
}
|
|
|
|
if(de_cook(data,data_len)!=0)
|
|
{
|
|
mylog(log_debug,"de_cook error");
|
|
continue;
|
|
}
|
|
|
|
int out_n;char **out_arr;int *out_len;my_time_t *out_delay;
|
|
from_fec_to_normal(conn_info,data,data_len,out_n,out_arr,out_len,out_delay);
|
|
|
|
mylog(log_trace,"out_n=%d\n",out_n);
|
|
|
|
for(int i=0;i<out_n;i++)
|
|
{
|
|
u32_t conv;
|
|
char *new_data;
|
|
int new_len;
|
|
if(get_conv(conv,out_arr[i],out_len[i],new_data,new_len)!=0)
|
|
{
|
|
mylog(log_debug,"get_conv(conv,out_arr[i],out_len[i],new_data,new_len)!=0");
|
|
continue;
|
|
}
|
|
if(!conn_info.conv_manager.is_conv_used(conv))
|
|
{
|
|
mylog(log_trace,"!conn_info.conv_manager.is_conv_used(conv)");
|
|
}
|
|
|
|
conn_info.conv_manager.update_active_time(conv);
|
|
|
|
u64_t u64=conn_info.conv_manager.find_u64_by_conv(conv);
|
|
dest_t dest;
|
|
dest.inner.ip_port.from_u64(u64);
|
|
dest.type=type_ip_port;
|
|
//dest.conv=conv;
|
|
|
|
delay_send(out_delay[i],dest,new_data,new_len);
|
|
}
|
|
//mylog(log_trace,"[%s] send packet\n",dest.inner.ip_port.to_s());
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal,"unknown fd,this should never happen\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
delay_manager.check();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int server_event_loop()
|
|
{
|
|
//char buf[buf_len];
|
|
int i, j, k;int ret;
|
|
int yes = 1;
|
|
int epoll_fd;
|
|
int remote_fd;
|
|
|
|
// conn_info_t conn_info;
|
|
|
|
init_listen_socket();
|
|
|
|
epoll_fd = epoll_create1(0);
|
|
assert(epoll_fd>0);
|
|
|
|
const int max_events = 4096;
|
|
struct epoll_event ev, events[max_events];
|
|
if (epoll_fd < 0) {
|
|
mylog(log_fatal,"epoll return %d\n", epoll_fd);
|
|
myexit(-1);
|
|
}
|
|
|
|
ev.events = EPOLLIN;
|
|
ev.data.u64 = local_listen_fd;
|
|
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, local_listen_fd, &ev);
|
|
if (ret!=0) {
|
|
mylog(log_fatal,"add udp_listen_fd error\n");
|
|
myexit(-1);
|
|
}
|
|
|
|
ev.events = EPOLLIN;
|
|
ev.data.u64 = delay_manager.get_timer_fd();
|
|
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, delay_manager.get_timer_fd(), &ev);
|
|
if (ret!= 0) {
|
|
mylog(log_fatal,"add delay_manager.get_timer_fd() error\n");
|
|
myexit(-1);
|
|
}
|
|
|
|
mylog(log_debug," delay_manager.get_timer_fd() =%d\n", delay_manager.get_timer_fd());
|
|
|
|
mylog(log_info,"now listening at %s:%d\n",my_ntoa(local_ip_uint32),local_port);
|
|
|
|
my_timer_t timer;
|
|
timer.add_fd_to_epoll(epoll_fd);
|
|
timer.set_timer_repeat_us(timer_interval*1000);
|
|
|
|
mylog(log_debug," timer.get_timer_fd() =%d\n",timer.get_timer_fd());
|
|
|
|
int fifo_fd=-1;
|
|
|
|
if(fifo_file[0]!=0)
|
|
{
|
|
fifo_fd=create_fifo(fifo_file);
|
|
ev.events = EPOLLIN;
|
|
ev.data.u64 = fifo_fd;
|
|
|
|
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fifo_fd, &ev);
|
|
if (ret!= 0) {
|
|
mylog(log_fatal,"add fifo_fd to epoll error %s\n",strerror(errno));
|
|
myexit(-1);
|
|
}
|
|
mylog(log_info,"fifo_file=%s\n",fifo_file);
|
|
}
|
|
|
|
while(1)////////////////////////
|
|
{
|
|
|
|
if(about_to_exit) myexit(0);
|
|
|
|
int nfds = epoll_wait(epoll_fd, events, max_events, 180 * 1000);
|
|
if (nfds < 0) { //allow zero
|
|
if(errno==EINTR )
|
|
{
|
|
mylog(log_info,"epoll interrupted by signal\n");
|
|
myexit(0);
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal,"epoll_wait return %d\n", nfds);
|
|
myexit(-1);
|
|
}
|
|
}
|
|
int idx;
|
|
for (idx = 0; idx < nfds; ++idx)
|
|
{
|
|
/*
|
|
if ((events[idx].data.u64 ) == (u64_t)timer_fd)
|
|
{
|
|
conn_manager.clear_inactive();
|
|
u64_t dummy;
|
|
read(timer_fd, &dummy, 8);
|
|
//current_time_rough=get_current_time();
|
|
}
|
|
else */
|
|
if(events[idx].data.u64==(u64_t)timer.get_timer_fd())
|
|
{
|
|
uint64_t value;
|
|
read(timer.get_timer_fd(), &value, 8);
|
|
conn_manager.clear_inactive();
|
|
mylog(log_trace,"events[idx].data.u64==(u64_t)timer.get_timer_fd()\n");
|
|
//conn_info.conv_manager.clear_inactive();
|
|
}
|
|
|
|
else if (events[idx].data.u64 == (u64_t)fifo_fd)
|
|
{
|
|
char buf[buf_len];
|
|
int len=read (fifo_fd, buf, sizeof (buf));
|
|
if(len<0)
|
|
{
|
|
mylog(log_warn,"fifo read failed len=%d,errno=%s\n",len,strerror(errno));
|
|
continue;
|
|
}
|
|
buf[len]=0;
|
|
handle_command(buf);
|
|
}
|
|
|
|
else if (events[idx].data.u64 == (u64_t)local_listen_fd)
|
|
{
|
|
|
|
mylog(log_trace,"events[idx].data.u64 == (u64_t)local_listen_fd\n");
|
|
//int recv_len;
|
|
char data[buf_len];
|
|
int data_len;
|
|
struct sockaddr_in udp_new_addr_in={0};
|
|
socklen_t udp_new_addr_len = sizeof(sockaddr_in);
|
|
if ((data_len = recvfrom(local_listen_fd, data, max_data_len, 0,
|
|
(struct sockaddr *) &udp_new_addr_in, &udp_new_addr_len)) == -1) {
|
|
mylog(log_error,"recv_from error,this shouldnt happen,err=%s\n",strerror(errno));
|
|
continue;
|
|
//myexit(1);
|
|
};
|
|
mylog(log_trace,"Received packet from %s:%d,len: %d\n", inet_ntoa(udp_new_addr_in.sin_addr),
|
|
ntohs(udp_new_addr_in.sin_port),data_len);
|
|
|
|
if(!disable_mtu_warn&&data_len>=mtu_warn)///////////////////////delete this for type 0 in furture
|
|
{
|
|
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);
|
|
}
|
|
|
|
|
|
if(de_cook(data,data_len)!=0)
|
|
{
|
|
mylog(log_debug,"de_cook error");
|
|
continue;
|
|
}
|
|
|
|
|
|
ip_port_t ip_port;
|
|
ip_port.ip=udp_new_addr_in.sin_addr.s_addr;
|
|
ip_port.port=ntohs(udp_new_addr_in.sin_port);
|
|
mylog(log_trace,"ip_port= %s\n",ip_port.to_s());
|
|
if(!conn_manager.exist(ip_port))
|
|
{
|
|
if(conn_manager.mp.size() >=max_conn_num)
|
|
{
|
|
mylog(log_warn,"new connection %s ignored bc max_conn_num exceed\n",ip_port.to_s());
|
|
continue;
|
|
}
|
|
|
|
conn_manager.insert(ip_port);
|
|
conn_info_t &conn_info=conn_manager.find(ip_port);
|
|
//conn_info.fec_encode_manager.re_init(fec_data_num,fec_redundant_num,fec_mtu,fec_pending_num,fec_pending_time,fec_type);
|
|
//conn_info.conv_manager.reserve(); //already reserved in constructor
|
|
|
|
u64_t fec_fd64=conn_info.fec_encode_manager.get_timer_fd64();
|
|
mylog(log_debug,"fec_fd64=%llu\n",fec_fd64);
|
|
ev.events = EPOLLIN;
|
|
ev.data.u64 = fec_fd64;
|
|
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd_manager.to_fd(fec_fd64), &ev);
|
|
|
|
fd_manager.get_info(fec_fd64).ip_port=ip_port;
|
|
|
|
conn_info.timer.add_fd64_to_epoll(epoll_fd);
|
|
conn_info.timer.set_timer_repeat_us(timer_interval*1000);
|
|
|
|
mylog(log_debug,"conn_info.timer.get_timer_fd64()=%llu\n",conn_info.timer.get_timer_fd64());
|
|
|
|
u64_t timer_fd64=conn_info.timer.get_timer_fd64();
|
|
fd_manager.get_info(timer_fd64).ip_port=ip_port;
|
|
|
|
mylog(log_info,"new connection from %s\n",ip_port.to_s());
|
|
|
|
}
|
|
conn_info_t &conn_info=conn_manager.find(ip_port);
|
|
|
|
conn_info.update_active_time();
|
|
int out_n;char **out_arr;int *out_len;my_time_t *out_delay;
|
|
from_fec_to_normal(conn_info,data,data_len,out_n,out_arr,out_len,out_delay);
|
|
|
|
mylog(log_trace,"out_n= %d\n",out_n);
|
|
for(int i=0;i<out_n;i++)
|
|
{
|
|
u32_t conv;
|
|
char *new_data;
|
|
int new_len;
|
|
if(get_conv(conv,out_arr[i],out_len[i],new_data,new_len)!=0)
|
|
{
|
|
mylog(log_debug,"get_conv failed");
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
id_t tmp_conv_id;
|
|
memcpy(&tmp_conv_id,&data_[0],sizeof(tmp_conv_id));
|
|
tmp_conv_id=ntohl(tmp_conv_id);*/
|
|
|
|
if (!conn_info.conv_manager.is_conv_used(conv))
|
|
{
|
|
if(conn_info.conv_manager.get_size() >=max_conv_num)
|
|
{
|
|
mylog(log_warn,"ignored new udp connect bc max_conv_num exceed\n");
|
|
continue;
|
|
}
|
|
|
|
int new_udp_fd;
|
|
ret=new_connected_socket(new_udp_fd,remote_ip_uint32,remote_port);
|
|
|
|
if (ret != 0) {
|
|
mylog(log_warn, "[%s]new_connected_socket failed\n",ip_port.to_s());
|
|
continue;
|
|
}
|
|
|
|
fd64_t fd64 = fd_manager.create(new_udp_fd);
|
|
ev.events = EPOLLIN;
|
|
ev.data.u64 = fd64;
|
|
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, new_udp_fd, &ev);
|
|
|
|
conn_info.conv_manager.insert_conv(conv, fd64);
|
|
fd_manager.get_info(fd64).ip_port=ip_port;
|
|
|
|
|
|
mylog(log_info,"[%s]new conv %x,fd %d created,fd64=%llu\n",ip_port.to_s(),conv,new_udp_fd,fd64);
|
|
//assert(!conn_manager.exist_fd64(fd64));
|
|
|
|
//conn_manager.insert_fd64(fd64,ip_port);
|
|
}
|
|
conn_info.conv_manager.update_active_time(conv);
|
|
fd64_t fd64= conn_info.conv_manager.find_u64_by_conv(conv);
|
|
//int fd=fd_manager.fd64_to_fd(fd64);
|
|
dest_t dest;
|
|
dest.type=type_fd64;
|
|
dest.inner.fd64=fd64;
|
|
//dest.conv=conv;
|
|
delay_send(out_delay[i],dest,new_data,new_len);
|
|
}
|
|
}
|
|
else if (events[idx].data.u64 == (u64_t)delay_manager.get_timer_fd()) {
|
|
uint64_t value;
|
|
read(delay_manager.get_timer_fd(), &value, 8);
|
|
mylog(log_trace,"events[idx].data.u64 == (u64_t)delay_manager.get_timer_fd()\n");
|
|
}
|
|
else if (events[idx].data.u64 >u32_t(-1))
|
|
{
|
|
char data[buf_len];
|
|
int data_len;
|
|
u32_t conv;
|
|
fd64_t fd64=events[idx].data.u64;
|
|
mylog(log_trace,"events[idx].data.u64 >u32_t(-1),%llu\n",(u64_t)events[idx].data.u64);
|
|
if(!fd_manager.exist(fd64)) //fd64 has been closed
|
|
{
|
|
mylog(log_trace,"!fd_manager.exist(fd64)\n");
|
|
continue;
|
|
}
|
|
|
|
assert(fd_manager.exist_info(fd64));
|
|
ip_port_t ip_port=fd_manager.get_info(fd64).ip_port;
|
|
assert(conn_manager.exist(ip_port));
|
|
|
|
conn_info_t &conn_info=conn_manager.find(ip_port);
|
|
//conn_info.update_active_time(); //cant put it here
|
|
|
|
int out_n=-2;char **out_arr;int *out_len;my_time_t *out_delay;
|
|
dest_t dest;
|
|
dest.type=type_ip_port;
|
|
//dest.conv=conv;
|
|
dest.inner.ip_port=ip_port;
|
|
dest.cook=1;
|
|
|
|
if(fd64==conn_info.fec_encode_manager.get_timer_fd64())
|
|
{
|
|
//mylog(log_infol,"timer!!!\n");
|
|
uint64_t value;
|
|
if((ret=read(fd_manager.to_fd(fd64), &value, 8))!=8)
|
|
{
|
|
mylog(log_trace,"fd_manager.to_fd(fd64), &value, 8)!=8 ,%d\n",ret);
|
|
continue;
|
|
}
|
|
if(value==0)
|
|
{
|
|
mylog(log_trace,"value==0\n");
|
|
continue;
|
|
}
|
|
assert(value==1);
|
|
from_normal_to_fec(conn_info,0,0,out_n,out_arr,out_len,out_delay);
|
|
}
|
|
else if(fd64==conn_info.timer.get_timer_fd64())
|
|
{
|
|
uint64_t value;
|
|
read(conn_info.timer.get_timer_fd(), &value, 8);
|
|
conn_info.conv_manager.clear_inactive();
|
|
if(debug_force_flush_fec)
|
|
{
|
|
from_normal_to_fec(conn_info,0,0,out_n,out_arr,out_len,out_delay);
|
|
}
|
|
|
|
conn_info.stat.report_as_server(ip_port);
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
assert(conn_info.conv_manager.is_u64_used(fd64));
|
|
|
|
conv=conn_info.conv_manager.find_conv_by_u64(fd64);
|
|
conn_info.conv_manager.update_active_time(conv);
|
|
conn_info.update_active_time();
|
|
|
|
int fd=fd_manager.to_fd(fd64);
|
|
data_len=recv(fd,data,max_data_len,0);
|
|
|
|
mylog(log_trace,"received a packet from udp_fd,len:%d,conv=%d\n",data_len,conv);
|
|
|
|
if(data_len<0)
|
|
{
|
|
mylog(log_debug,"udp fd,recv_len<0 continue,%s\n",strerror(errno));
|
|
|
|
continue;
|
|
}
|
|
|
|
if(!disable_mtu_warn&&data_len>=mtu_warn)
|
|
{
|
|
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);
|
|
}
|
|
|
|
char * new_data;
|
|
int new_len;
|
|
put_conv(conv,data,data_len,new_data,new_len);
|
|
|
|
from_normal_to_fec(conn_info,new_data,new_len,out_n,out_arr,out_len,out_delay);
|
|
}
|
|
|
|
mylog(log_trace,"out_n=%d\n",out_n);
|
|
for(int i=0;i<out_n;i++)
|
|
{
|
|
delay_send(out_delay[i],dest,out_arr[i],out_len[i]);
|
|
}
|
|
//mylog(log_trace,"[%s] send packet\n",ip_port.to_s());
|
|
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal,"unknown fd,this should never happen\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
delay_manager.check();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
int unit_test()
|
|
{
|
|
int i,j,k;
|
|
void *code=fec_new(3,6);
|
|
char arr[6][100]=
|
|
{
|
|
"aaa","bbb","ccc"
|
|
,"ddd","eee","fff"
|
|
};
|
|
char *data[6];
|
|
for(i=0;i<6;i++)
|
|
{
|
|
data[i]=arr[i];
|
|
}
|
|
rs_encode2(3,6,data,3);
|
|
//printf("%d %d",(int)(unsigned char)arr[5][0],(int)('a'^'b'^'c'^'d'^'e'));
|
|
|
|
for(i=0;i<6;i++)
|
|
{
|
|
printf("<%s>",data[i]);
|
|
}
|
|
|
|
data[0]=0;
|
|
//data[1]=0;
|
|
//data[5]=0;
|
|
|
|
int ret=rs_decode2(3,6,data,3);
|
|
printf("ret:%d\n",ret);
|
|
|
|
for(i=0;i<6;i++)
|
|
{
|
|
printf("<%s>",data[i]);
|
|
}
|
|
fec_free(code);
|
|
|
|
|
|
char arr2[6][100]=
|
|
{
|
|
"aaa11111","","ccc333333333"
|
|
,"ddd444","eee5555","ff6666"
|
|
};
|
|
blob_encode_t blob_encode;
|
|
for(int i=0;i<6;i++)
|
|
blob_encode.input(arr2[i],strlen(arr2[i]));
|
|
|
|
char **output;
|
|
int shard_len;
|
|
blob_encode.output(7,output,shard_len);
|
|
|
|
|
|
printf("<shard_len:%d>",shard_len);
|
|
blob_decode_t blob_decode;
|
|
for(int i=0;i<7;i++)
|
|
{
|
|
blob_decode.input(output[i],shard_len);
|
|
}
|
|
|
|
char **decode_output;
|
|
int * len_arr;
|
|
int num;
|
|
|
|
|
|
ret=blob_decode.output(num,decode_output,len_arr);
|
|
|
|
printf("<num:%d,ret:%d>\n",num,ret);
|
|
for(int i=0;i<num;i++)
|
|
{
|
|
char buf[1000]={0};
|
|
memcpy(buf,decode_output[i],len_arr[i]);
|
|
printf("<%d:%s>",len_arr[i],buf);
|
|
}
|
|
printf("\n");
|
|
static fec_encode_manager_t fec_encode_manager;
|
|
static fec_decode_manager_t fec_decode_manager;
|
|
|
|
{
|
|
|
|
string a = "11111";
|
|
string b = "22";
|
|
string c = "33333333";
|
|
|
|
fec_encode_manager.input((char *) a.c_str(), a.length());
|
|
fec_encode_manager.input((char *) b.c_str(), b.length());
|
|
fec_encode_manager.input((char *) c.c_str(), c.length());
|
|
fec_encode_manager.input(0, 0);
|
|
|
|
int n;
|
|
char **s_arr;
|
|
int *len;
|
|
|
|
|
|
fec_encode_manager.output(n,s_arr,len);
|
|
printf("<n:%d,len:%d>",n,len[0]);
|
|
|
|
for(int i=0;i<n;i++)
|
|
{
|
|
fec_decode_manager.input(s_arr[i],len[i]);
|
|
}
|
|
|
|
{
|
|
int n;char ** s_arr;int* len_arr;
|
|
fec_decode_manager.output(n,s_arr,len_arr);
|
|
printf("<n:%d>",n);
|
|
for(int i=0;i<n;i++)
|
|
{
|
|
s_arr[i][len_arr[i]]=0;
|
|
printf("<%s>\n",s_arr[i]);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
{
|
|
string a = "aaaaaaa";
|
|
string b = "bbbbbbbbbbbbb";
|
|
string c = "ccc";
|
|
|
|
|
|
fec_encode_manager.input((char *) a.c_str(), a.length());
|
|
fec_encode_manager.input((char *) b.c_str(), b.length());
|
|
fec_encode_manager.input((char *) c.c_str(), c.length());
|
|
fec_encode_manager.input(0, 0);
|
|
|
|
int n;
|
|
char **s_arr;
|
|
int * len;
|
|
|
|
|
|
fec_encode_manager.output(n,s_arr,len);
|
|
printf("<n:%d,len:%d>",n,len[0]);
|
|
|
|
for(int i=0;i<n;i++)
|
|
{
|
|
if(i==1||i==3||i==5||i==0)
|
|
fec_decode_manager.input(s_arr[i],len[i]);
|
|
}
|
|
|
|
{
|
|
int n;char ** s_arr;int* len_arr;
|
|
fec_decode_manager.output(n,s_arr,len_arr);
|
|
printf("<n:%d>",n);
|
|
for(int i=0;i<n;i++)
|
|
{
|
|
s_arr[i][len_arr[i]]=0;
|
|
printf("<%s>\n",s_arr[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
for(int i=0;i<10;i++)
|
|
{
|
|
string a = "aaaaaaaaaaaaaaaaaaaaaaa";
|
|
string b = "bbbbbbbbbbbbb";
|
|
string c = "cccccccccccccccccc";
|
|
|
|
|
|
|
|
printf("======\n");
|
|
int n;
|
|
char **s_arr;
|
|
int * len;
|
|
fec_decode_manager.output(n,s_arr,len);
|
|
|
|
fec_encode_manager.re_init(3,2,g_fec_mtu,g_fec_queue_len,g_fec_timeout,1);
|
|
|
|
fec_encode_manager.input((char *) a.c_str(), a.length());
|
|
fec_encode_manager.output(n,s_arr,len);
|
|
assert(n==1);
|
|
|
|
fec_decode_manager.input(s_arr[0],len[0]);
|
|
|
|
fec_decode_manager.output(n,s_arr,len);
|
|
assert(n==1);
|
|
printf("%s\n",s_arr[0]);
|
|
|
|
fec_encode_manager.input((char *) b.c_str(), b.length());
|
|
fec_encode_manager.output(n,s_arr,len);
|
|
assert(n==1);
|
|
//fec_decode_manager.input(s_arr[0],len[0]);
|
|
|
|
|
|
fec_encode_manager.input((char *) c.c_str(), c.length());
|
|
fec_encode_manager.output(n,s_arr,len);
|
|
|
|
assert(n==3);
|
|
|
|
fec_decode_manager.input(s_arr[0],len[0]);
|
|
//printf("n=%d\n",n);
|
|
|
|
|
|
{
|
|
int n;
|
|
char **s_arr;
|
|
int * len;
|
|
fec_decode_manager.output(n,s_arr,len);
|
|
assert(n==1);
|
|
printf("%s\n",s_arr[0]);
|
|
}
|
|
|
|
fec_decode_manager.input(s_arr[1],len[1]);
|
|
|
|
{
|
|
int n;
|
|
char **s_arr;
|
|
int * len;
|
|
fec_decode_manager.output(n,s_arr,len);
|
|
assert(n==1);
|
|
printf("n=%d\n",n);
|
|
s_arr[0][len[0]]=0;
|
|
printf("%s\n",s_arr[0]);
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
void print_help()
|
|
{
|
|
char git_version_buf[100]={0};
|
|
strncpy(git_version_buf,gitversion,10);
|
|
|
|
printf("UDPspeeder V2\n");
|
|
printf("git version:%s ",git_version_buf);
|
|
printf("build date:%s %s\n",__DATE__,__TIME__);
|
|
printf("repository: https://github.com/wangyu-/UDPspeeder\n");
|
|
printf("\n");
|
|
printf("usage:\n");
|
|
printf(" run as client : ./this_program -c -l local_listen_ip:local_port -r server_ip:server_port [options]\n");
|
|
printf(" run as server : ./this_program -s -l server_listen_ip:server_port -r remote_ip:remote_port [options]\n");
|
|
printf("\n");
|
|
printf("common option,must be same on both sides:\n");
|
|
printf(" -k,--key <string> key for simple xor encryption. if not set,xor is disabled\n");
|
|
|
|
printf("main options:\n");
|
|
printf(" -f,--fec x:y forward error correction,send y redundant packets for every x packets\n");
|
|
printf(" --timeout <number> how long could a packet be held in queue before doing fec,unit: ms,default :8ms\n");
|
|
printf(" --mode <number> fec-mode,available values: 0,1 ; 0 cost less bandwidth,1 cost less latency(default)\n");
|
|
printf(" --report <number> turn on send/recv report,and set a period for reporting,unit:s\n");
|
|
|
|
printf("advanced options:\n");
|
|
printf(" --mtu <number> mtu. for mode 0,the program will split packet to segment smaller than mtu_value.\n");
|
|
printf(" for mode 1,no packet will be split,the program just check if the mtu is exceed.\n");
|
|
printf(" default value:1250 \n");
|
|
printf(" -j,--jitter <number> simulated jitter.randomly delay first packet for 0~<number> ms,default value:0.\n");
|
|
printf(" do not use if you dont know what it means.\n");
|
|
printf(" -i,--interval <number> scatter each fec group to a interval of <number> ms,to protect burst packet loss.\n");
|
|
printf(" default value:0.do not use if you dont know what it means.\n");
|
|
printf(" --random-drop <number> simulate packet loss ,unit:0.01%%. default value: 0\n");
|
|
printf(" --disable-obscure <number> disable obscure,to save a bit bandwidth and cpu\n");
|
|
// printf(" --disable-xor <number> disable xor\n");
|
|
|
|
printf("developer options:\n");
|
|
printf(" --fifo <string> use a fifo(named pipe) for sending commands to the running program,so that you can change\n");
|
|
printf(" fec encoder parameters dynamically,check readme.md in repository for supported commands.\n");
|
|
printf(" -j ,--jitter jmin:jmax similiar to -j above,but create jitter randomly between jmin and jmax\n");
|
|
printf(" -i,--interval imin:imax similiar to -i above,but scatter randomly between imin and imax\n");
|
|
printf(" -q,--queue-len <number> max fec queue len,only for mode 0\n");
|
|
printf(" --decode-buf <number> size of buffer of fec decoder,unit:packet,default:2000\n");
|
|
printf(" --fix-latency <number> try to stabilize latency,only for mode 0\n");
|
|
printf(" --delay-capacity <number> max number of delayed packets\n");
|
|
printf(" --disable-fec <number> completely disable fec,turn the program into a normal udp tunnel\n");
|
|
printf(" --sock-buf <number> buf size for socket,>=10 and <=10240,unit:kbyte,default:1024\n");
|
|
printf("log and help options:\n");
|
|
printf(" --log-level <number> 0:never 1:fatal 2:error 3:warn \n");
|
|
printf(" 4:info (default) 5:debug 6:trace\n");
|
|
printf(" --log-position enable file name,function name,line number in log\n");
|
|
printf(" --disable-color disable log color\n");
|
|
printf(" -h,--help print this help message\n");
|
|
|
|
//printf("common options,these options must be same on both side\n");
|
|
}
|
|
void process_arg(int argc, char *argv[])
|
|
{
|
|
int is_client=0,is_server=0;
|
|
int i, j, k;
|
|
int opt;
|
|
static struct option long_options[] =
|
|
{
|
|
{"log-level", required_argument, 0, 1},
|
|
{"log-position", no_argument, 0, 1},
|
|
{"disable-color", no_argument, 0, 1},
|
|
{"disable-filter", no_argument, 0, 1},
|
|
{"disable-fec", no_argument, 0, 1},
|
|
{"disable-obscure", no_argument, 0, 1},
|
|
{"disable-xor", no_argument, 0, 1},
|
|
{"fix-latency", no_argument, 0, 1},
|
|
{"sock-buf", required_argument, 0, 1},
|
|
{"random-drop", required_argument, 0, 1},
|
|
{"report", required_argument, 0, 1},
|
|
{"delay-capacity", required_argument, 0, 1},
|
|
{"mtu", required_argument, 0, 1},
|
|
{"mode", required_argument, 0,1},
|
|
{"timeout", required_argument, 0,1},
|
|
{"decode-buf", required_argument, 0,1},
|
|
{"queue-len", required_argument, 0,'q'},
|
|
{"fec", required_argument, 0,'f'},
|
|
{"jitter", required_argument, 0,'j'},
|
|
{"fifo", required_argument, 0, 1},
|
|
{NULL, 0, 0, 0}
|
|
};
|
|
int option_index = 0;
|
|
if (argc == 1)
|
|
{
|
|
print_help();
|
|
myexit( -1);
|
|
}
|
|
for (i = 0; i < argc; i++)
|
|
{
|
|
if(strcmp(argv[i],"--unit-test")==0)
|
|
{
|
|
unit_test();
|
|
myexit(0);
|
|
}
|
|
}
|
|
for (i = 0; i < argc; i++)
|
|
{
|
|
if(strcmp(argv[i],"-h")==0||strcmp(argv[i],"--help")==0)
|
|
{
|
|
print_help();
|
|
myexit(0);
|
|
}
|
|
}
|
|
for (i = 0; i < argc; i++)
|
|
{
|
|
if(strcmp(argv[i],"--log-level")==0)
|
|
{
|
|
if(i<argc -1)
|
|
{
|
|
sscanf(argv[i+1],"%d",&log_level);
|
|
if(0<=log_level&&log_level<log_end)
|
|
{
|
|
}
|
|
else
|
|
{
|
|
log_bare(log_fatal,"invalid log_level\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
}
|
|
if(strcmp(argv[i],"--disable-color")==0)
|
|
{
|
|
enable_log_color=0;
|
|
}
|
|
}
|
|
|
|
mylog(log_info,"argc=%d ", argc);
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
log_bare(log_info, "%s ", argv[i]);
|
|
}
|
|
log_bare(log_info, "\n");
|
|
|
|
if (argc == 1)
|
|
{
|
|
print_help();
|
|
myexit(-1);
|
|
}
|
|
|
|
int no_l = 1, no_r = 1;
|
|
while ((opt = getopt_long(argc, argv, "l:r:hcsk:j:f:p:n:i:q:",long_options,&option_index)) != -1)
|
|
{
|
|
//string opt_key;
|
|
//opt_key+=opt;
|
|
switch (opt)
|
|
{
|
|
case 'k':
|
|
sscanf(optarg,"%s\n",key_string);
|
|
mylog(log_debug,"key=%s\n",key_string);
|
|
if(strlen(key_string)==0)
|
|
{
|
|
mylog(log_fatal,"key len=0??\n");
|
|
myexit(-1);
|
|
}
|
|
break;
|
|
case 'j':
|
|
if (strchr(optarg, ':') == 0)
|
|
{
|
|
int jitter;
|
|
sscanf(optarg,"%d\n",&jitter);
|
|
if(jitter<0 ||jitter>1000*10)
|
|
{
|
|
mylog(log_fatal,"jitter must be between 0 and 10,000(10 second)\n");
|
|
myexit(-1);
|
|
}
|
|
jitter_min=0;
|
|
jitter_max=jitter;
|
|
|
|
|
|
}
|
|
else
|
|
{
|
|
sscanf(optarg,"%d:%d\n",&jitter_min,&jitter_max);
|
|
if(jitter_min<0 ||jitter_max<0||jitter_min>jitter_max)
|
|
{
|
|
mylog(log_fatal," must satisfy 0<=jmin<=jmax\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
jitter_min*=1000;
|
|
jitter_max*=1000;
|
|
break;
|
|
case 'i':
|
|
if (strchr(optarg, ':') == 0)
|
|
{
|
|
int output_interval=-1;
|
|
sscanf(optarg,"%d\n",&output_interval);
|
|
if(output_interval<0||output_interval>1000*10)
|
|
{
|
|
mylog(log_fatal,"output_interval must be between 0 and 10,000(10 second)\n");
|
|
myexit(-1);
|
|
}
|
|
output_interval_min=output_interval_max=output_interval;
|
|
}
|
|
else
|
|
{
|
|
sscanf(optarg,"%d:%d\n",&output_interval_min,&output_interval_max);
|
|
if(output_interval_min<0 ||output_interval_max<0||output_interval_min>output_interval_max)
|
|
{
|
|
mylog(log_fatal," must satisfy 0<=output_interval_min<=output_interval_max\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
output_interval_min*=1000;
|
|
output_interval_max*=1000;
|
|
break;
|
|
case 'f':
|
|
if (strchr(optarg, ':') == 0)
|
|
{
|
|
mylog(log_fatal,"invalid format for f");
|
|
myexit(-1);
|
|
}
|
|
else
|
|
{
|
|
sscanf(optarg,"%d:%d\n",&g_fec_data_num,&g_fec_redundant_num);
|
|
if(g_fec_data_num<1 ||g_fec_redundant_num<0||g_fec_data_num+g_fec_redundant_num>254)
|
|
{
|
|
mylog(log_fatal,"fec_data_num<1 ||fec_redundant_num<0||fec_data_num+fec_redundant_num>254\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
break;
|
|
case 'q':
|
|
sscanf(optarg,"%d",&g_fec_queue_len);
|
|
if(g_fec_queue_len<1||g_fec_queue_len>10000)
|
|
{
|
|
|
|
mylog(log_fatal,"fec_pending_num should be between 1 and 10000\n");
|
|
myexit(-1);
|
|
}
|
|
break;
|
|
case 'c':
|
|
is_client = 1;
|
|
break;
|
|
case 's':
|
|
is_server = 1;
|
|
break;
|
|
case 'l':
|
|
no_l = 0;
|
|
if (strchr(optarg, ':') != 0)
|
|
{
|
|
sscanf(optarg, "%[^:]:%d", local_ip, &local_port);
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal," -r ip:port\n");
|
|
myexit(1);
|
|
strcpy(local_ip, "127.0.0.1");
|
|
sscanf(optarg, "%d", &local_port);
|
|
}
|
|
break;
|
|
case 'r':
|
|
no_r = 0;
|
|
if (strchr(optarg, ':') != 0)
|
|
{
|
|
//printf("in :\n");
|
|
//printf("%s\n",optarg);
|
|
sscanf(optarg, "%[^:]:%d", remote_ip, &remote_port);
|
|
//printf("%d\n",remote_port);
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal," -r ip:port\n");
|
|
myexit(1);
|
|
strcpy(remote_ip, "127.0.0.1");
|
|
sscanf(optarg, "%d", &remote_port);
|
|
}
|
|
break;
|
|
case 'h':
|
|
break;
|
|
case 1:
|
|
if(strcmp(long_options[option_index].name,"log-level")==0)
|
|
{
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"disable-filter")==0)
|
|
{
|
|
disable_replay_filter=1;
|
|
//enable_log_color=0;
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"disable-color")==0)
|
|
{
|
|
//enable_log_color=0;
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"disable-fec")==0)
|
|
{
|
|
disable_fec=1;
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"disable-obscure")==0)
|
|
{
|
|
mylog(log_info,"obscure disabled\n");
|
|
disable_obscure=1;
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"disable-xor")==0)
|
|
{
|
|
mylog(log_info,"xor disabled\n");
|
|
disable_xor=1;
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"fix-latency")==0)
|
|
{
|
|
mylog(log_info,"fix-latency enabled\n");
|
|
fix_latency=1;
|
|
}
|
|
|
|
else if(strcmp(long_options[option_index].name,"log-position")==0)
|
|
{
|
|
enable_log_position=1;
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"random-drop")==0)
|
|
{
|
|
sscanf(optarg,"%d",&random_drop);
|
|
if(random_drop<0||random_drop>10000)
|
|
{
|
|
mylog(log_fatal,"random_drop must be between 0 10000 \n");
|
|
myexit(-1);
|
|
}
|
|
mylog(log_info,"random_drop=%d\n",random_drop);
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"delay-capacity")==0)
|
|
{
|
|
sscanf(optarg,"%d",&delay_capacity);
|
|
|
|
if(delay_capacity<0)
|
|
{
|
|
mylog(log_fatal,"delay_capacity must be >=0 \n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"report")==0)
|
|
{
|
|
sscanf(optarg,"%d",&report_interval);
|
|
|
|
if(report_interval<=0)
|
|
{
|
|
mylog(log_fatal,"report_interval must be >0 \n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"sock-buf")==0)
|
|
{
|
|
int tmp=-1;
|
|
sscanf(optarg,"%d",&tmp);
|
|
if(10<=tmp&&tmp<=10*1024)
|
|
{
|
|
socket_buf_size=tmp*1024;
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal,"sock-buf value must be between 1 and 10240 (kbyte) \n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"decode-buf")==0)
|
|
{
|
|
sscanf(optarg,"%d",&fec_buff_num);
|
|
if(fec_buff_num<300 || fec_buff_num>20000)
|
|
{
|
|
mylog(log_fatal,"decode-buf value must be between 300 and 20000 (kbyte) \n");
|
|
myexit(-1);
|
|
}
|
|
mylog(log_info,"decode-buf=%d\n",fec_buff_num);
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"mode")==0)
|
|
{
|
|
sscanf(optarg,"%d",&g_fec_mode);
|
|
if(g_fec_mode!=0&&g_fec_mode!=1)
|
|
{
|
|
mylog(log_fatal,"mode should be 0 or 1\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"mtu")==0)
|
|
{
|
|
sscanf(optarg,"%d",&g_fec_mtu);
|
|
if(g_fec_mtu<100||g_fec_mtu>2000)
|
|
{
|
|
mylog(log_fatal,"fec_mtu should be between 100 and 2000\n");
|
|
myexit(-1);
|
|
}
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"timeout")==0)
|
|
{
|
|
sscanf(optarg,"%d",&g_fec_timeout);
|
|
if(g_fec_timeout<0||g_fec_timeout>1000)
|
|
{
|
|
|
|
mylog(log_fatal,"fec_pending_time should be between 0 and 1000(1s)\n");
|
|
myexit(-1);
|
|
}
|
|
g_fec_timeout*=1000;
|
|
}
|
|
else if(strcmp(long_options[option_index].name,"fifo")==0)
|
|
{
|
|
sscanf(optarg,"%s",fifo_file);
|
|
|
|
mylog(log_info,"fifo_file =%s \n",fifo_file);
|
|
}
|
|
else
|
|
{
|
|
mylog(log_fatal,"unknown option\n");
|
|
myexit(-1);
|
|
}
|
|
break;
|
|
default:
|
|
mylog(log_fatal,"unknown option <%x>", opt);
|
|
myexit(-1);
|
|
}
|
|
}
|
|
|
|
if (no_l)
|
|
mylog(log_fatal,"error: -i not found\n");
|
|
if (no_r)
|
|
mylog(log_fatal,"error: -o not found\n");
|
|
if (no_l || no_r)
|
|
myexit(-1);
|
|
if (is_client == 0 && is_server == 0)
|
|
{
|
|
mylog(log_fatal,"-s -c hasnt been set\n");
|
|
myexit(-1);
|
|
}
|
|
if (is_client == 1 && is_server == 1)
|
|
{
|
|
mylog(log_fatal,"-s -c cant be both set\n");
|
|
myexit(-1);
|
|
}
|
|
if(is_client==1)
|
|
{
|
|
program_mode=client_mode;
|
|
}
|
|
else
|
|
{
|
|
program_mode=server_mode;
|
|
}
|
|
|
|
print_parameter();
|
|
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
|
|
/*
|
|
if(argc==1||argc==0)
|
|
{
|
|
printf("this_program classic\n");
|
|
printf("this_program fec\n");
|
|
return 0;
|
|
}*/
|
|
/*
|
|
if(argc>=2&&strcmp(argv[1],"fec")!=0)
|
|
{
|
|
printf("running into classic mode!\n");
|
|
return classic::main(argc,argv);
|
|
}*/
|
|
|
|
assert(sizeof(u64_t)==8);
|
|
assert(sizeof(i64_t)==8);
|
|
assert(sizeof(u32_t)==4);
|
|
assert(sizeof(i32_t)==4);
|
|
assert(sizeof(u16_t)==2);
|
|
assert(sizeof(i16_t)==2);
|
|
dup2(1, 2); //redirect stderr to stdout
|
|
int i, j, k;
|
|
process_arg(argc,argv);
|
|
|
|
delay_manager.set_capacity(delay_capacity);
|
|
local_ip_uint32=inet_addr(local_ip);
|
|
remote_ip_uint32=inet_addr(remote_ip);
|
|
|
|
if(program_mode==client_mode)
|
|
{
|
|
client_event_loop();
|
|
}
|
|
else
|
|
{
|
|
server_event_loop();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|