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[stg.git] / projects / stargazer / plugins / other / ping / ping.cpp
1 #include <cstdio>
2 #include <cassert>
3 #include <csignal>
4 #include <ctime>
5 #include <algorithm>
6
7 #include "stg/user.h"
8 #include "stg/locker.h"
9 #include "stg/user_property.h"
10 #include "stg/plugin_creator.h"
11 #include "ping.h"
12
13 PLUGIN_CREATOR<PING> pc;
14 //-----------------------------------------------------------------------------
15 //-----------------------------------------------------------------------------
16 //-----------------------------------------------------------------------------
17 PLUGIN * GetPlugin()
18 {
19 return pc.GetPlugin();
20 }
21 //-----------------------------------------------------------------------------
22 //-----------------------------------------------------------------------------
23 //-----------------------------------------------------------------------------
24 // ëÌÁÓÓ ÄÌÑ ÐÏÉÓËÁ ÀÚÅÒÁ × ÓÐÉÓËÅ ÎÏÔÉÆÉËÁÔÏÒÏ×
25 template <typename varType>
26 class IS_CONTAINS_USER: public binary_function<varType, USER_PTR, bool>
27 {
28 public:
29     IS_CONTAINS_USER(const USER_PTR & u) : user(u) {}
30     bool operator()(varType notifier) const
31         {
32         return notifier.GetUser() == user;
33         };
34 private:
35     const USER_PTR & user;
36 };
37 //-----------------------------------------------------------------------------
38 //-----------------------------------------------------------------------------
39 //-----------------------------------------------------------------------------
40 int PING_SETTINGS::ParseSettings(const MODULE_SETTINGS & s)
41 {
42 PARAM_VALUE pv;
43 vector<PARAM_VALUE>::const_iterator pvi;
44
45 pv.param = "PingDelay";
46 pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);
47 if (pvi == s.moduleParams.end())
48     {
49     errorStr = "Parameter \'PingDelay\' not found.";
50     printfd(__FILE__, "Parameter 'PingDelay' not found\n");
51     return -1;
52     }
53 if (ParseIntInRange(pvi->value[0], 5, 3600, &pingDelay))
54     {
55     errorStr = "Cannot parse parameter \'PingDelay\': " + errorStr;
56     printfd(__FILE__, "Canot parse parameter 'PingDelay'\n");
57     return -1;
58     }
59
60 return 0;
61 }
62 //-----------------------------------------------------------------------------
63 PING::PING()
64     : errorStr(),
65       pingSettings(),
66       settings(),
67       users(NULL),
68       usersList(),
69       thread(),
70       mutex(),
71       nonstop(false),
72       isRunning(false),
73       pinger(),
74       ChgCurrIPNotifierList(),
75       ChgIPNotifierList(),
76       onAddUserNotifier(*this),
77       onDelUserNotifier(*this)
78 {
79 pthread_mutex_init(&mutex, NULL);
80 }
81 //-----------------------------------------------------------------------------
82 PING::~PING()
83 {
84 pthread_mutex_destroy(&mutex);
85 }
86 //-----------------------------------------------------------------------------
87 int PING::ParseSettings()
88 {
89 int ret = pingSettings.ParseSettings(settings);
90 if (ret)
91     errorStr = pingSettings.GetStrError();
92 return ret;
93 }
94 //-----------------------------------------------------------------------------
95 int PING::Start()
96 {
97 GetUsers();
98
99 users->AddNotifierUserAdd(&onAddUserNotifier);
100 users->AddNotifierUserDel(&onDelUserNotifier);
101
102 nonstop = true;
103
104 pinger.SetDelayTime(pingSettings.GetPingDelay());
105 pinger.Start();
106
107 if (pthread_create(&thread, NULL, Run, this))
108     {
109     errorStr = "Cannot start thread.";
110     printfd(__FILE__, "Cannot start thread\n");
111     return -1;
112     }
113
114 return 0;
115 }
116 //-----------------------------------------------------------------------------
117 int PING::Stop()
118 {
119 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
120
121 if (!isRunning)
122     return 0;
123
124 pinger.Stop();
125 nonstop = false;
126 //5 seconds to thread stops itself
127 struct timespec ts = {0, 200000000};
128 for (int i = 0; i < 25; i++)
129     {
130     if (!isRunning)
131         break;
132
133     nanosleep(&ts, NULL);
134     }
135
136 //after 5 seconds waiting thread still running. now kill it
137 if (isRunning)
138     {
139     printfd(__FILE__, "kill PING thread.\n");
140     if (pthread_kill(thread, SIGINT))
141         {
142         errorStr = "Cannot kill PING thread.";
143         printfd(__FILE__, "Cannot kill PING thread.\n");
144         return -1;
145         }
146     printfd(__FILE__, "PING killed\n");
147     }
148
149 users->DelNotifierUserAdd(&onAddUserNotifier);
150 users->DelNotifierUserDel(&onDelUserNotifier);
151
152 list<USER_PTR>::iterator users_iter;
153 users_iter = usersList.begin();
154 while (users_iter != usersList.end())
155     {
156     UnSetUserNotifiers(*users_iter);
157     ++users_iter;
158     }
159
160 return 0;
161 }
162 //-----------------------------------------------------------------------------
163 bool PING::IsRunning()
164 {
165 return isRunning;
166 }
167 //-----------------------------------------------------------------------------
168 void * PING::Run(void * d)
169 {
170 sigset_t signalSet;
171 sigfillset(&signalSet);
172 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
173
174 PING * ping = static_cast<PING *>(d);
175 ping->isRunning = true;
176
177 long delay = (10000000 * ping->pingSettings.GetPingDelay()) / 3 + 50000000;
178  
179 while (ping->nonstop)
180     {
181     list<USER_PTR>::iterator iter = ping->usersList.begin();
182         {
183         STG_LOCKER lock(&ping->mutex, __FILE__, __LINE__);
184         while (iter != ping->usersList.end())
185             {
186             if ((*iter)->GetProperty().ips.ConstData().OnlyOneIP())
187                 {
188                 uint32_t ip = (*iter)->GetProperty().ips.ConstData()[0].ip;
189                 time_t t;
190                 if (ping->pinger.GetIPTime(ip, &t) == 0)
191                     {
192                     if (t)
193                         (*iter)->UpdatePingTime(t);
194                     }
195                 }
196             else
197                 {
198                 uint32_t ip = (*iter)->GetCurrIP();
199                 if (ip)
200                     {
201                     time_t t;
202                     if (ping->pinger.GetIPTime(ip, &t) == 0)
203                         {
204                         if (t)
205                             (*iter)->UpdatePingTime(t);
206                         }
207                     }
208                 }
209             ++iter;
210             }
211         }
212     struct timespec ts = {delay / 1000000000, delay % 1000000000};
213     for (int i = 0; i < 100; i++)
214         {
215         if (ping->nonstop)
216             {
217             nanosleep(&ts, NULL);
218             }
219         }
220     }
221
222 ping->isRunning = false;
223 return NULL;
224 }
225 //-----------------------------------------------------------------------------
226 void PING::SetUserNotifiers(USER_PTR u)
227 {
228 CHG_CURRIP_NOTIFIER_PING ChgCurrIPNotifier(*this, u);
229 CHG_IPS_NOTIFIER_PING ChgIPNotifier(*this, u);
230
231 ChgCurrIPNotifierList.push_front(ChgCurrIPNotifier);
232 ChgIPNotifierList.push_front(ChgIPNotifier);
233
234 u->AddCurrIPAfterNotifier(&(*ChgCurrIPNotifierList.begin()));
235 u->GetProperty().ips.AddAfterNotifier(&(*ChgIPNotifierList.begin()));
236 }
237 //-----------------------------------------------------------------------------
238 void PING::UnSetUserNotifiers(USER_PTR u)
239 {
240 // ---          CurrIP              ---
241 IS_CONTAINS_USER<CHG_CURRIP_NOTIFIER_PING> IsContainsUserCurrIP(u);
242 IS_CONTAINS_USER<CHG_IPS_NOTIFIER_PING> IsContainsUserIP(u);
243
244 list<CHG_CURRIP_NOTIFIER_PING>::iterator currIPter;
245 list<CHG_IPS_NOTIFIER_PING>::iterator IPIter;
246
247 currIPter = find_if(ChgCurrIPNotifierList.begin(),
248                     ChgCurrIPNotifierList.end(),
249                     IsContainsUserCurrIP);
250
251 if (currIPter != ChgCurrIPNotifierList.end())
252     {
253     currIPter->GetUser()->DelCurrIPAfterNotifier(&(*currIPter));
254     ChgCurrIPNotifierList.erase(currIPter);
255     }
256 // ---         CurrIP end          ---
257
258 // ---          IP              ---
259 IPIter = find_if(ChgIPNotifierList.begin(),
260                  ChgIPNotifierList.end(),
261                  IsContainsUserIP);
262
263 if (IPIter != ChgIPNotifierList.end())
264     {
265     IPIter->GetUser()->GetProperty().ips.DelAfterNotifier(&(*IPIter));
266     ChgIPNotifierList.erase(IPIter);
267     }
268 // ---          IP end          ---
269 }
270 //-----------------------------------------------------------------------------
271 void PING::GetUsers()
272 {
273 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
274
275 USER_PTR u;
276 int h = users->OpenSearch();
277 assert(h && "USERS::OpenSearch is always correct");
278
279 while (users->SearchNext(h, &u) == 0)
280     {
281     usersList.push_back(u);
282     SetUserNotifiers(u);
283     if (u->GetProperty().ips.ConstData().OnlyOneIP())
284         {
285         pinger.AddIP(u->GetProperty().ips.ConstData()[0].ip);
286         }
287     else
288         {
289         uint32_t ip = u->GetCurrIP();
290         if (ip)
291             {
292             pinger.AddIP(ip);
293             }
294         }
295     }
296
297 users->CloseSearch(h);
298 }
299 //-----------------------------------------------------------------------------
300 void PING::AddUser(USER_PTR u)
301 {
302 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
303
304 SetUserNotifiers(u);
305 usersList.push_back(u);
306 }
307 //-----------------------------------------------------------------------------
308 void PING::DelUser(USER_PTR u)
309 {
310 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
311
312 UnSetUserNotifiers(u);
313
314 list<USER_PTR>::iterator users_iter;
315 users_iter = usersList.begin();
316
317 while (users_iter != usersList.end())
318     {
319     if (u == *users_iter)
320         {
321         usersList.erase(users_iter);
322         break;
323         }
324     ++users_iter;
325     }
326 }
327 //-----------------------------------------------------------------------------
328 void CHG_CURRIP_NOTIFIER_PING::Notify(const uint32_t & oldIP, const uint32_t & newIP)
329 {
330 ping.pinger.DelIP(oldIP);
331 if (newIP)
332     {
333     ping.pinger.AddIP(newIP);
334     }
335 }
336 //-----------------------------------------------------------------------------
337 void CHG_IPS_NOTIFIER_PING::Notify(const USER_IPS & oldIPS, const USER_IPS & newIPS)
338 {
339 if (oldIPS.OnlyOneIP())
340     {
341     ping.pinger.DelIP(oldIPS[0].ip);
342     }
343
344 if (newIPS.OnlyOneIP())
345     {
346     ping.pinger.AddIP(newIPS[0].ip);
347     }
348 }
349 //-----------------------------------------------------------------------------
350 void ADD_USER_NONIFIER_PING::Notify(const USER_PTR & user)
351 {
352 ping.AddUser(user);
353 }
354 //-----------------------------------------------------------------------------
355 void DEL_USER_NONIFIER_PING::Notify(const USER_PTR & user)
356 {
357 ping.DelUser(user);
358 }
359 //-----------------------------------------------------------------------------