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
|
/*
* 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 "segment.h"
Tsegment *segments_in_progress[MAX_CONNECTS]={0};
string statusToString(Tsegment_status the_status){
switch (the_status){
case SWAITING:return "SWAITING";
case SDOWNLOADING:return "SDOWNLOADING";
case SDOWNLOADED:return "SDOWNLOADED";
case SFAILED:return "SFAILED";
default :return "UNKNOWN STATUS";
}
}
bool Tsegment::segment_verification_is_ok(){
try{
ulong downloaded_size;
ifstream file((settings.segments_dir+"/"+file_name).c_str(), ios::in|ios::binary);
ulong start = file.tellg();
file.seekg (0, ios::end);
ulong end = file.tellg();
downloaded_size = end - start;
debug("seg:"+toString(segment_num)+" Dsize="+toString(downloaded_size)+" seg_size="+toString(segment_size));
file.close();
if (downloaded_size==segment_size){
return true;
}
}catch(...){
error_log("Error in segment.cpp: segment_verification_is_ok()");
}
return false;
}
void Tsegment::set_segment(Tdistfile *prnt_distfile, uint seg_num, string distfile_name, ulong default_seg_size, ulong range_end){
try{
parent_distfile=prnt_distfile;
segment_num=seg_num;
segment_size=range_end-seg_num*default_seg_size+1;
range=toString(seg_num*default_seg_size)+"-"+toString(range_end);
file_name="."+distfile_name+".seg"+toString(seg_num);
if (settings.get_resume()){
//check if downloaded
if (segment_verification_is_ok()){
status=SDOWNLOADED;
debug("seg:"+toString(seg_num)+" Downloaded");
}
else{
debug("seg:"+toString(seg_num)+" not downloaded");
downloaded_bytes=0;
}
}
}catch(...){
error_log("Error in segment.cpp: prepare_for_connection()");
}
}
void Tsegment::prepare_for_connection(CURLM *cm, uint con_num, uint network_num, uint distfile_num, string url_address){
try{
// debug("NETWORK:"+toString(network_num)+(network_array[network_num].use_own_mirror_list_only_on ? " - LOCAL": " - REMOTE"));
// if MODE_LOCAL or MODE_PROXY_FETCHER
url=url_address;
msg_connecting(con_num,distfile_num, segment_num,"Downloading from "+url);
segments_in_progress[con_num]=this;
status=SDOWNLOADING;
downloaded_bytes=0;
connection_num=con_num;
// connection_array[con_num].start(network_num);
try_num++;
add_easy_handle_to_multi(cm, network_num);
}catch(...){
error_log("Error in segment.cpp: prepare_for_connection()");
}
}
Tsegment::~Tsegment(){
try{
segment_file.close();
}catch(...){
error_log("Error in segment.cpp: ~Tsegment()");
}
}
int Tsegment::add_easy_handle_to_multi(CURLM *cm, uint network_num){
try{
segment_file.exceptions (ofstream::badbit);
segment_file.open((settings.segments_dir+"/"+file_name).c_str(), ios::trunc|ios::binary );
}catch(std::ifstream::failure e){
if (!segment_file.eof()){
error_log("Can't open segment file:"+settings.segments_dir+"/"+file_name+": "+(string)e.what());
return 1;
}
}catch(...){
error_log("Unknown error: Can't open segment file:"+settings.segments_dir+"/"+file_name);
return 1;
}
try{
easyhandle = curl_easy_init();
if(easyhandle) {
curl_easy_setopt(easyhandle, CURLOPT_URL, url.c_str() );
curl_easy_setopt(easyhandle, CURLOPT_WRITEDATA, this);
curl_easy_setopt(easyhandle, CURLOPT_PRIVATE, this);
curl_easy_setopt(easyhandle, CURLOPT_RANGE, range.c_str());
curl_easy_setopt(easyhandle, CURLOPT_TIMEOUT, network_array[network_num].time_out);
curl_easy_setopt(easyhandle, CURLOPT_FTP_RESPONSE_TIMEOUT, network_array[network_num].ftp_response_timeout);
if ((network_array[network_num].low_connection_speed_limit!=0) and (network_array[network_num].low_connection_speed_limit!=(ulong)-1)){
curl_easy_setopt(easyhandle, CURLOPT_LOW_SPEED_LIMIT, network_array[network_num].low_connection_speed_limit);
}
curl_easy_setopt(easyhandle, CURLOPT_LOW_SPEED_TIME, network_array[network_num].low_connection_speed_time);
if ((network_array[network_num].max_connection_speed!=0) and (network_array[network_num].max_connection_speed!=(ulong)-1)){
curl_easy_setopt(easyhandle, CURLOPT_MAX_RECV_SPEED_LARGE, network_array[network_num].max_connection_speed);
}
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, network_array[network_num].user_agent.c_str());
if (network_array[network_num].proxy_off)
curl_easy_setopt(easyhandle, CURLOPT_NOPROXY, "*");
else{
if ((network_array[network_num].proxy_ip_or_name!="none") and (network_array[network_num].proxy_port!=0)){
curl_easy_setopt(easyhandle, CURLOPT_PROXY, network_array[network_num].proxy_ip_or_name.c_str());
curl_easy_setopt(easyhandle, CURLOPT_PROXYPORT, network_array[network_num].proxy_port);
debug("Using proxy:"+network_array[network_num].proxy_ip_or_name+":"+toString(network_array[network_num].proxy_port));
}
if (network_array[network_num].proxy_user!="none"){
curl_easy_setopt(easyhandle, CURLOPT_PROXYUSERNAME, network_array[network_num].proxy_user.c_str());
if (network_array[network_num].proxy_password!="none")
curl_easy_setopt(easyhandle, CURLOPT_PROXYPASSWORD, network_array[network_num].proxy_password.c_str());
}
}
if ((network_array[network_num].bind_interface!="none")
and (network_array[network_num].bind_interface!=""))
curl_easy_setopt(easyhandle, CURLOPT_INTERFACE, network_array[network_num].bind_interface.c_str());
//set connection timeout
curl_easy_setopt(easyhandle, CURLOPT_CONNECTTIMEOUT, network_array[network_num].connection_timeout);
curl_easy_setopt(easyhandle, CURLOPT_WRITEFUNCTION, write_data);
curl_multi_add_handle(cm, easyhandle);
return 0;
}else
return 1;
}catch(...){
error_log("Error in segment.cpp: add_easy_handle_to_multi()");
return 1;
}
}
void show_progress(double time_diff){
try{
stats.total_bytes_per_last_interval=0;
stats.avg_total_speed=0;
for (uint con_num=0; con_num<MAX_CONNECTS; con_num++){
// ulong speed=bytes_written*1000/(diff_sec+diff_milli);
//if connection is not NULL
if (connection_array[con_num].active){
connection_array[con_num].show_connection_progress(time_diff);
if (time_left_from(connection_array[con_num].start_time)>0){
stats.avg_total_speed+=(connection_array[con_num].total_dld_bytes*1000)/time_left_from(connection_array[con_num].start_time);
}
}
}
stats.last_time_interval=time_diff;
stats.show_totals();
}
catch(...){
error_log("Error in segment.cpp: show_progress()");
}
}
size_t write_data(void *buffer, size_t size, size_t nmemb, void *cur_segment){
ulong bytes_written=size*nmemb;
try{
Tsegment *segment;
segment =(Tsegment*)cur_segment;
segment->downloaded_bytes+=nmemb;
try{
segment->segment_file.write((char*)buffer,nmemb*size);
}
catch(...){
error_log("Can't write segment file:"+segment->file_name);
}
connection_array[segment->connection_num].inc_bytes_per_last_interval(bytes_written);
// ulong time_diff_msecs=time_left_from(stats.previous_time);
// if (time_diff_msecs >= settings.current_speed_time_interval_msecs){
// show_progress(time_diff_msecs);
// };
}catch(...){
error_log("Error in segment.cpp: write_data()");
return 0;
}
return bytes_written;
}
|
GitWeb