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/*
* Copyright (C) 2010 Robin H.Johnson, Ovechko Kostyantyn <fastinetserver@gmail.com>.
*
* Project: IDFetch.
* Developer: Ovechko Kostyantyn Olexandrovich (Kharkiv State Technical University of Construction and Architecture, Ukraine).
* Mentor: Robin H. Johnson (Gentoo Linux: Developer, Trustee & Infrastructure Lead).
* Mentoring organization: Gentoo Linux.
* Sponsored by GSOC 2010.
*
* This file is part of Segget.
*
* Segget is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Segget is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Segget; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "connection.h"
long script_waiting_connection_num=-1;
uint Tconnection::total_connections=0;
Tconnection connection_array[MAX_CONNECTS];
time_t prev_time;
void init_connections(){
for (ulong connection_num=0; connection_num<MAX_CONNECTS; connection_num++){
connection_array[connection_num].connection_num=connection_num;
};
}
int Tconnection::start(CURLM *cm, uint network_number, uint distfile_num, Tsegment *started_segment, uint best_mirror_num){
try{
segment=started_segment;
debug("Starting connection for distfile: "+segment->parent_distfile->name);
mirror_num=best_mirror_num;
network_num=network_number;
total_dld_bytes=0;
bytes_per_last_interval=0;
gettimeofday(&start_time,NULL);
active=true;
debug("Connecting network"+toString(network_num));
segment->parent_distfile->active_connections_num++;
if (network_array[network_num].network_mode==MODE_PROXY_FETCHER){
connection_start_time_network_phase_for_pf_networks=segment->parent_distfile->network_distfile_brokers_array[network_num].phase;
}
Tmirror *Pcurr_mirror;
switch (network_array[network_num].network_mode){
case MODE_REMOTE:{
url=segment->parent_distfile->url_list[mirror_num];
Pcurr_mirror=find_mirror(strip_mirror_name(url));
break;
}
case MODE_CORAL_CDN:{
url=convert_to_coral_cdn_url(segment->parent_distfile->url_list[mirror_num]);
Pcurr_mirror=find_mirror(strip_mirror_name(url));
break;
}
default:{
Pcurr_mirror=&network_array[network_num].benchmarked_mirror_list[mirror_num];
url=Pcurr_mirror->url+segment->parent_distfile->name;
}
}
debug(" URL:"+url);
if (run_user_python_script(connection_num)){
return REJECTED_BY_USER_PYTHON_SCRIPT;
}
debug("aaaaa");
Pcurr_mirror->start();
debug("bbbbb");
network_array[network_num].connect();
debug("ccccc");
stats.active_connections_counter++;
segment->prepare_for_connection(cm, connection_num, network_num, distfile_num, url);
debug("Started connection for distfile: "+segment->parent_distfile->name);
return 0;
}catch(...){
error_log("Error in connection.cpp: start()");
}
return ERROR_WHILE_PREPARING_CONNECTION;
}
/*
string explain_curl_error(int error_code){
try{
//curl_easy_strerror(
}catch(...){
error_log("Error in connection.cpp: explain_curl_error()");
}
return "Error in connection.cpp: explain_curl_error()";
}
*/
void Tconnection::stop(CURLcode connection_result){
try{
stats.active_connections_counter--;
Tmirror *Pcurr_mirror;
switch (network_array[network_num].network_mode){
case MODE_REMOTE:
case MODE_CORAL_CDN:{
Pcurr_mirror=find_mirror(strip_mirror_name(url));
break;
}
default:{
Pcurr_mirror=&network_array[network_num].benchmarked_mirror_list[mirror_num];
}
}
debug("Finished connection for distfile: "+segment->parent_distfile->name+" Segment#:"+toString(segment->segment_num)+" Network#"+toString(network_num)+" Status: "+toString(connection_result));
if (connection_result){
string error_str=curl_easy_strerror(connection_result);
debug(" ERROR "+toString(connection_result)+": "+error_str);
error_log("Finished connection for distfile: "+segment->parent_distfile->name+" Segment#:"+toString(segment->segment_num)+" Network#"+toString(network_num)+" Status: "+toString(connection_result));
error_log(" ERROR "+toString(connection_result)+": "+error_str);
}
active=false;
network_array[network_num].disconnect();
// network_array[network_num].benchmarked_mirror_list[mirror_num].stop();
segment->segment_file.close();
if (connection_result==0){
if (! segment->segment_verification_is_ok()){
connection_result=CURLE_READ_ERROR;
Pcurr_mirror->stop(time_left_from(connection_array[connection_num].start_time),0);
debug("curl_lies - there is a problem downloading segment");
error_log("curl_lies - there is a problem downloading segment");
}else{
Pcurr_mirror->stop(time_left_from(connection_array[connection_num].start_time),segment->segment_size);
}
}else{
Pcurr_mirror->stop(time_left_from(connection_array[connection_num].start_time),0);
}
segment->parent_distfile->active_connections_num--;
msg_clean_connection(connection_num);
/*
Tmirror *Pcurr_mirror;
if (network_array[network_num].network_mode==MODE_LOCAL){
Pcurr_mirror=&network_array[network_num].benchmarked_mirror_list[mirror_num];
prnt_distfile->network_distfile_brokers_array[network_num].mirror_fails_vector[mirror_num]=true;
// find_mirror(strip_mirror_name(segment->url));
}else{
Pcurr_mirror=find_mirror(strip_mirror_name(segment->url));
}
*/
timeval now_time;
gettimeofday(&now_time,NULL);
if (connection_result!=0){
switch (network_array[network_num].network_mode){
case MODE_LOCAL:{
// prnt_distfile->network_distfile_brokers_array[network_num].mirror_fails_vector[mirror_num]=true;
segment->parent_distfile->network_distfile_brokers_array[network_num].local_mirror_failed(mirror_num);
// find_mirror(strip_mirror_name(segment->url));
break;
}
case MODE_PROXY_FETCHER:{
// prnt_distfile->network_distfile_brokers_array[network_num].mirror_fails_vector[mirror_num]=true;
if (connection_start_time_network_phase_for_pf_networks==E_USE_AS_LOCAL_MIRRORS){
segment->parent_distfile->network_distfile_brokers_array[network_num].local_mirror_failed(mirror_num);
}else{ // proxy-fetcher mirror failed, if everything correct it must be in phase E_PROXY_FETCHER_DOWNLOADED,
segment->parent_distfile->network_distfile_brokers_array[network_num].proxy_fetcher_mirror_failed(mirror_num);
}
// find_mirror(strip_mirror_name(segment->url));
break;
}
default:{ // MODE REMOTE MIRRORS
}
}
// error -> start downloading again
// msg_status2(segment->connection_num, toString(connection_result)+"]- Failed download "+segment->file_name);
debug(toString(connection_result)+"]- Failed download "+segment->url);
if (segment->try_num>=settings.max_tries){
segment->status=SFAILED;
segment->parent_distfile->status=DFAILED;
error_log("Segget failed to download distfile: "+segment->parent_distfile->name);
error_log("Segment:"+segment->file_name+" has reached max_tries limit - segment.status set to FAILED");
}
else segment->status=SWAITING;
}else{
// no error => count this one and start new
log("Succesfully downloaded "+segment->file_name+" on connection#"+toString(connection_num));
debug(" Successful download "+segment->url);
// already done earlier in this function Pcurr_mirror=find_mirror(strip_mirror_name(segment->url));
segment->status=SDOWNLOADED;
segment->parent_distfile->inc_dld_segments_count(segment);
};
}catch(...){
error_log("Error in connection.cpp: stop()");
}
}
void Tconnection::inc_bytes_per_last_interval(ulong new_bytes_count){
try{
total_dld_bytes+=new_bytes_count;
bytes_per_last_interval+=new_bytes_count;
}catch(...){
error_log("Error in connection.cpp: inc_bytes_per_last_interval()");
}
}
void Tconnection::show_connection_progress(ulong time_diff){
try{
stats.total_bytes_per_last_interval+=bytes_per_last_interval;
ulong speed=(bytes_per_last_interval*1000)/time_diff;
ulong avg_speed=(total_dld_bytes*1000)/time_left_from(start_time);
string eta_string;
if (avg_speed==0){
eta_string=" ETA: inf";
}else{
eta_string=" ETA: "+secsToString((segment->segment_size-segment->downloaded_bytes)/avg_speed);
}
string speed_str;
string avg_speed_str;
speed_str=" Speed: "+speedToString(speed);
avg_speed_str=" AVG speed: "+speedToString(avg_speed);
int percent=segment->downloaded_bytes*100/segment->segment_size;
string network_type_str;
switch (network_array[network_num].network_mode){
case MODE_REMOTE: network_type_str="REM"; break;
case MODE_PROXY_FETCHER: network_type_str="P-F"; break;
case MODE_LOCAL: network_type_str="LOC"; break;
case MODE_CORAL_CDN: network_type_str="CDN"; break;
}
string progress_text=field("[Net",network_num,1)
+":"+network_type_str+"]"
+field(" Segment:",segment->segment_num, 5)
+field(" Try:",segment->try_num,4)
+field(" Bytes:",segment->downloaded_bytes,7)
+field(" / ",segment->segment_size,7)
+field(" = ",percent,3)+"%"
+speed_str
+avg_speed_str
+eta_string;
msg_segment_progress(segment->connection_num, progress_text);
bytes_per_last_interval=0;
}catch(...){
error_log("Error in connection.cpp: show_connection_progress()");
}
}
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