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type 1 bug fixed

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This commit is contained in:
wangyu- 2017-10-10 05:42:59 -05:00
parent fa25a60c08
commit 3b7619e081
4 changed files with 95 additions and 38 deletions
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2
delay_manager.cpp
View File

@ -56,7 +56,7 @@ int delay_manager_t::add(my_time_t delay,const dest_t &dest,char *data,int len)
{
int ret=delay_data.handle();
if (ret != 0) {
mylog(log_debug, "handle() return %d\n", ret);
mylog(log_trace, "handle() return %d\n", ret);
}
return 0;
}

115
fec_manager.cpp
View File

@ -162,16 +162,18 @@ int fec_encode_manager_t::append(char *s,int len/*,int &is_first_packet*/)
its.it_value.tv_nsec=(tmp_time%1000000llu)*1000llu;
timerfd_settime(timer_fd,TFD_TIMER_ABSTIME,&its,0);
}
if(type==0)
{
blob_encode.input(s,len);
}
else if(type==1)
{
mylog(log_info,"counter=%d\n",counter);
assert(len<=65535&&len>=0);
write_u16(buf[counter]+sizeof(u32_t)+4*sizeof(char),(u16_t)((u32_t)len));
memcpy(buf[counter]+sizeof(u32_t)+4*sizeof(char)+sizeof(u16_t),s,len);//remember to change this,if protocol is modified
char * p=buf[counter]+sizeof(u32_t)+4*sizeof(char);
write_u16(p,(u16_t)((u32_t)len));
p+=sizeof(u16_t);
memcpy(p,s,len);//remember to change this,if protocol is modified
buf_s_len[counter]=len+sizeof(u16_t);
}
else
@ -185,7 +187,7 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
{
int about_to_fec=0;
int delayed_append=0;
if(type==0&& s!=0 &&blob_encode.get_num()==0&&blob_encode.get_shard_len(fec_data_num,len)>=fec_mtu)
if(type==0&& s!=0 &&counter==0&&blob_encode.get_shard_len(fec_data_num,len)>=fec_mtu)
{
mylog(log_warn,"message too long len=%d,ignored\n",len);
return -1;
@ -196,6 +198,7 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
return -1;
}
if(s==0) about_to_fec=1;//now
assert(type==0||type==1);
if(type==0&& blob_encode.get_shard_len(fec_data_num,len)>=fec_mtu) {about_to_fec=1; delayed_append=1;}//fec then add packet
if(type==0) assert(counter<fec_pending_num);
@ -208,6 +211,8 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
}
if(type==0&& counter==fec_pending_num) {about_to_fec=1;} //
if(type==1&& counter==fec_data_num) about_to_fec=1;
@ -218,7 +223,7 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
mylog(log_debug,"counter=%d\n",counter);
if(counter==0)
{
mylog(log_warn,"unexpected s==0\n");
mylog(log_warn,"unexpected counter==0\n");
return -1;
}
@ -239,57 +244,62 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
for(int i=0;i<counter;i++)
{
assert(buf_s_len[i]>0);
assert(buf_s_len[i]>=0);
if(buf_s_len[i]>fec_len) fec_len=buf_s_len[i];
}
}
mylog(log_info,"%d %d %d\n",actual_data_num,actual_redundant_num,fec_len);
char *tmp_output_buf[max_fec_packet_num+5]={0};
for(int i=0;i<actual_data_num+actual_redundant_num;i++)
{
int tmp_idx=0;
write_u32(buf[i]+tmp_idx,seq);
tmp_idx+=sizeof(u32_t);
buf[i][tmp_idx++]=(unsigned char)0;
buf[i][tmp_idx++]=(unsigned char)type;
buf[i][tmp_idx++]=(unsigned char)actual_data_num;
buf[i][tmp_idx++]=(unsigned char)actual_redundant_num;
buf[i][tmp_idx++]=(unsigned char)i;
output_buf[i]=buf[i]+tmp_idx; //////caution ,trick here.
tmp_output_buf[i]=buf[i]+tmp_idx; //////caution ,trick here.
if(type==0)
{
output_len[i]=tmp_idx+fec_len;
if(i<actual_data_num)
{
memcpy(buf[i]+tmp_idx,blob_output[i],fec_len);
}
}
else
{
if(i<actual_data_num)
{
output_len[i]=tmp_idx+buf_s_len[i];
memset(tmp_output_buf[i]+buf_s_len[i],0,fec_len-buf_s_len[i]);
}
else
output_len[i]=tmp_idx+fec_len;
}
if(i<actual_data_num)
{
if(type==0)
memcpy(buf[i]+tmp_idx,blob_output[i],fec_len);
else
memset(buf[i]+tmp_idx+buf_s_len[i],0,fec_len-buf_s_len[i]);
}
output_buf[i]=buf[i];
}
//output_len=blob_len+sizeof(u32_t)+4*sizeof(char);/////remember to change this 4,if modified the protocol
rs_encode2(actual_data_num,actual_data_num+actual_redundant_num,tmp_output_buf,fec_len);
rs_encode2(actual_data_num,actual_data_num+actual_redundant_num,output_buf,fec_len);
for(int i=0;i<actual_data_num+actual_redundant_num;i++)
{
output_buf[i]=buf[i];//////caution ,trick here.
}
mylog(log_info,"!!! s= %d\n");
ready_for_output=1;
seq++;
counter=0;
output_n=actual_data_num+actual_redundant_num;
blob_encode.clear();
itimerspec its;
memset(&its,0,sizeof(its));
timerfd_settime(timer_fd,TFD_TIMER_ABSTIME,&its,0);
}
if(s!=0&&delayed_append)
@ -346,12 +356,22 @@ int fec_decode_manager_t::input(char *s,int len)
if(len<0)
{
mylog(log_warn,"len<0\n");
return -1;
}
if(type==1&&len<2)
if(type==1&&len<(int)sizeof(u16_t))
{
mylog(log_warn,"type==1&&len<2\n");
return -1;
}
if(type==1)
{
if(inner_index<data_num&&(int)( read_u16(s+tmp_idx)+sizeof(u16_t))!=len)
{
mylog(log_warn,"inner_index<data_num&&read_u16(s+tmp_idx)+sizeof(u16_t)!=len %d %d\n",(int)( read_u16(s+tmp_idx)+sizeof(u16_t)),len);
return -1;
}
}
if(data_num+redundant_num>max_fec_packet_num)
{
@ -375,18 +395,22 @@ int fec_decode_manager_t::input(char *s,int len)
ok=0;
if(ok==0)
{
return 0;
return -1;
}
}
if(fec_data[index].used!=0)
{
int tmp_seq=fec_data[index].seq;
u32_t tmp_seq=fec_data[index].seq;
anti_replay.set_invaild(tmp_seq);
if(mp.find(tmp_seq)!=mp.end())
{
mp.erase(tmp_seq);
}
if(tmp_seq==seq)
{
return -1;
}
}
fec_data[index].used=1;
@ -425,11 +449,19 @@ int fec_decode_manager_t::input(char *s,int len)
{
int max_len=-1;
int fec_ok=1;
int debug_num=inner_mp.size();
//outupt_s_arr_buf[max_fec_packet_num+5]={0};
//memset(output_s_arr_buf,0,sizeof(output_s_arr_buf));//in efficient
for(int i=0;i<data_num+redundant_num;i++)
{
output_s_arr_buf[i]=0;
}
for(auto it=inner_mp.begin();it!=inner_mp.end();it++)
{
output_s_arr_buf[it->first]=fec_data[it->second].buf;
assert(fec_data[it->second].len>=0);
assert(fec_data[it->second].len>=(int)sizeof(u16_t));
if(fec_data[it->second].len > max_len)
max_len=fec_data[it->second].len;
@ -440,6 +472,8 @@ int fec_decode_manager_t::input(char *s,int len)
}
int missed_packet[max_fec_packet_num+5];
int missed_packet_counter=0;
for(int i=0;i<data_num;i++)
{
if(output_s_arr_buf[i]==0 ||i==inner_index) //only missed packet +current packet
@ -454,12 +488,21 @@ int fec_decode_manager_t::input(char *s,int len)
output_s_arr_buf[i]+=sizeof(u16_t);
if(output_len_arr_buf[i]>max_data_len)
{
mylog(log_warn,"invaild len %d,seq= %u,data_num= %d r_num= %d,i= %d\n",output_len_arr_buf[i],seq,data_num,redundant_num,i);
fec_ok=0;
break;
for(int i=0;i<missed_packet_counter;i++)
{
log_bare(log_warn,"%d ",missed_packet[i]);
}
log_bare(log_warn,"\n");
//break;
}
}
if(fec_ok)
{
//output_n=data_num;
output_n=missed_packet_counter;
for(int i=0;i<missed_packet_counter;i++)
{
@ -467,25 +510,37 @@ int fec_decode_manager_t::input(char *s,int len)
output_len_arr_buf[i]=output_len_arr_buf[missed_packet[i]];
}
output_s_arr=output_s_arr_buf;
output_len_arr=output_len_arr_buf;
assert(ready_for_output==0);
ready_for_output=1;
anti_replay.set_invaild(seq);
}
else
{
ready_for_output=0;
}
anti_replay.set_invaild(seq);
}
}
else
{
if(type==1&&inner_index<=data_num)
if(type==1&&inner_index<data_num)
{
assert(ready_for_output==0);
output_n=1;
int check_len=read_u16(fec_data[index].buf);
output_s_arr_buf[0]=fec_data[index].buf+sizeof(u16_t);
output_len_arr[0]=fec_data[index].len-sizeof(u16_t);
output_len_arr_buf[0]=fec_data[index].len-sizeof(u16_t);
if(output_len_arr_buf[0]!=check_len)
{
mylog(log_warn,"len mismatch %d %d\n",output_len_arr_buf[0],check_len);
}
output_s_arr=output_s_arr_buf;
output_len_arr=output_len_arr_buf;
ready_for_output=1;
}
}

4
fec_manager.h
View File

@ -99,8 +99,8 @@ class fec_encode_manager_t
int fec_mtu;
int fec_pending_num;
int fec_pending_time;
char buf[max_fec_packet_num+5][buf_len+100];
char buf_s_len[max_fec_packet_num+5];
char buf[max_fec_packet_num+5][buf_len];
int buf_s_len[max_fec_packet_num+5];
char *output_buf[max_fec_packet_num+5];
int output_len[max_fec_packet_num+5];
int ready_for_output;

12
main.cpp
View File

@ -29,7 +29,7 @@ int mtu_warn=1350;
int fec_data_num=20;
int fec_redundant_num=8;
int fec_mtu=1200;
int fec_mtu=1300;
int fec_pending_num=200;
int fec_pending_time=50000;
int fec_type=0;
@ -112,10 +112,11 @@ int delay_send(my_time_t delay,const dest_t &dest,char *data,int len)
{
int rand=random()%100;
//mylog(log_info,"rand = %d\n",rand);
if(rand>=80)
{
//return 0;
//mylog(log_info,"dropped!\n");
if (dest.cook&&random_drop != 0) {
if (get_true_random_number() % 10000 < (u32_t) random_drop) {
return 0;
}
}
return delay_manager.add(delay,dest,data,len);;
}
@ -155,6 +156,7 @@ int from_normal_to_fec(conn_info_t & conn_info,char *data,int len,int & out_n,ch
conn_info.fec_encode_manager.output(out_n,out_arr,out_len);
}
//for(int i=0;i<n;i++)