1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* 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"
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;
};
}
void Tconnection::start(CURLM *cm, uint network_number, uint distfile_num, Tsegment *started_segment, uint best_mirror_num){
try{
stats.active_connections_counter++;
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;
string url;
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);
debug("aaaaa");
Pcurr_mirror->start();
debug("bbbbb");
network_array[network_num].connect();
debug("ccccc");
segment->prepare_for_connection(cm, connection_num, network_num, distfile_num, url);
debug("Started connection for distfile: "+segment->parent_distfile->name);
}catch(...){
error_log("Error in connection.cpp: start()");
}
}
/*
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--;
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);
}
msg_clean_connection(connection_num);
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()){
debug("curl_lies - there is a problem downloading segment");
error_log("curl_lies - there is a problem downloading segment");
connection_result=CURLE_READ_ERROR;
}
}
segment->parent_distfile->active_connections_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));
}
*/
Tmirror *Pcurr_mirror;
switch (network_array[network_num].network_mode){
case MODE_REMOTE:
case MODE_CORAL_CDN:{
Pcurr_mirror=find_mirror(strip_mirror_name(segment->url));
break;
}
default:{
Pcurr_mirror=&network_array[network_num].benchmarked_mirror_list[mirror_num];
}
}
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);
Pcurr_mirror->stop(time_left_from(connection_array[connection_num].start_time),0);
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));
Pcurr_mirror->stop(time_left_from(connection_array[connection_num].start_time),segment->segment_size);
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;
msg_segment_progress(
segment->connection_num,
network_num,
segment->segment_num,
segment->try_num,
segment->downloaded_bytes,
segment->segment_size,
(bytes_per_last_interval*1000)/time_diff,
(total_dld_bytes*1000)/time_left_from(start_time));
bytes_per_last_interval=0;
}catch(...){
error_log("Error in connection.cpp: show_connection_progress()");
}
}
|
GitWeb