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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 users->DelNotifierUserAdd(&onAddUserNotifier);
137 users->DelNotifierUserDel(&onDelUserNotifier);
138
139 list<USER_PTR>::iterator users_iter;
140 users_iter = usersList.begin();
141 while (users_iter != usersList.end())
142     {
143     UnSetUserNotifiers(*users_iter);
144     ++users_iter;
145     }
146
147 if (isRunning)
148     return -1;
149
150 return 0;
151 }
152 //-----------------------------------------------------------------------------
153 bool PING::IsRunning()
154 {
155 return isRunning;
156 }
157 //-----------------------------------------------------------------------------
158 void * PING::Run(void * d)
159 {
160 sigset_t signalSet;
161 sigfillset(&signalSet);
162 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
163
164 PING * ping = static_cast<PING *>(d);
165 ping->isRunning = true;
166
167 long delay = (10000000 * ping->pingSettings.GetPingDelay()) / 3 + 50000000;
168  
169 while (ping->nonstop)
170     {
171     list<USER_PTR>::iterator iter = ping->usersList.begin();
172         {
173         STG_LOCKER lock(&ping->mutex, __FILE__, __LINE__);
174         while (iter != ping->usersList.end())
175             {
176             if ((*iter)->GetProperty().ips.ConstData().OnlyOneIP())
177                 {
178                 uint32_t ip = (*iter)->GetProperty().ips.ConstData()[0].ip;
179                 time_t t;
180                 if (ping->pinger.GetIPTime(ip, &t) == 0)
181                     {
182                     if (t)
183                         (*iter)->UpdatePingTime(t);
184                     }
185                 }
186             else
187                 {
188                 uint32_t ip = (*iter)->GetCurrIP();
189                 if (ip)
190                     {
191                     time_t t;
192                     if (ping->pinger.GetIPTime(ip, &t) == 0)
193                         {
194                         if (t)
195                             (*iter)->UpdatePingTime(t);
196                         }
197                     }
198                 }
199             ++iter;
200             }
201         }
202     struct timespec ts = {delay / 1000000000, delay % 1000000000};
203     for (int i = 0; i < 100; i++)
204         {
205         if (ping->nonstop)
206             {
207             nanosleep(&ts, NULL);
208             }
209         }
210     }
211
212 ping->isRunning = false;
213 return NULL;
214 }
215 //-----------------------------------------------------------------------------
216 void PING::SetUserNotifiers(USER_PTR u)
217 {
218 CHG_CURRIP_NOTIFIER_PING ChgCurrIPNotifier(*this, u);
219 CHG_IPS_NOTIFIER_PING ChgIPNotifier(*this, u);
220
221 ChgCurrIPNotifierList.push_front(ChgCurrIPNotifier);
222 ChgIPNotifierList.push_front(ChgIPNotifier);
223
224 u->AddCurrIPAfterNotifier(&(*ChgCurrIPNotifierList.begin()));
225 u->GetProperty().ips.AddAfterNotifier(&(*ChgIPNotifierList.begin()));
226 }
227 //-----------------------------------------------------------------------------
228 void PING::UnSetUserNotifiers(USER_PTR u)
229 {
230 // ---          CurrIP              ---
231 IS_CONTAINS_USER<CHG_CURRIP_NOTIFIER_PING> IsContainsUserCurrIP(u);
232 IS_CONTAINS_USER<CHG_IPS_NOTIFIER_PING> IsContainsUserIP(u);
233
234 list<CHG_CURRIP_NOTIFIER_PING>::iterator currIPter;
235 list<CHG_IPS_NOTIFIER_PING>::iterator IPIter;
236
237 currIPter = find_if(ChgCurrIPNotifierList.begin(),
238                     ChgCurrIPNotifierList.end(),
239                     IsContainsUserCurrIP);
240
241 if (currIPter != ChgCurrIPNotifierList.end())
242     {
243     currIPter->GetUser()->DelCurrIPAfterNotifier(&(*currIPter));
244     ChgCurrIPNotifierList.erase(currIPter);
245     }
246 // ---         CurrIP end          ---
247
248 // ---          IP              ---
249 IPIter = find_if(ChgIPNotifierList.begin(),
250                  ChgIPNotifierList.end(),
251                  IsContainsUserIP);
252
253 if (IPIter != ChgIPNotifierList.end())
254     {
255     IPIter->GetUser()->GetProperty().ips.DelAfterNotifier(&(*IPIter));
256     ChgIPNotifierList.erase(IPIter);
257     }
258 // ---          IP end          ---
259 }
260 //-----------------------------------------------------------------------------
261 void PING::GetUsers()
262 {
263 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
264
265 USER_PTR u;
266 int h = users->OpenSearch();
267 assert(h && "USERS::OpenSearch is always correct");
268
269 while (users->SearchNext(h, &u) == 0)
270     {
271     usersList.push_back(u);
272     SetUserNotifiers(u);
273     if (u->GetProperty().ips.ConstData().OnlyOneIP())
274         {
275         pinger.AddIP(u->GetProperty().ips.ConstData()[0].ip);
276         }
277     else
278         {
279         uint32_t ip = u->GetCurrIP();
280         if (ip)
281             {
282             pinger.AddIP(ip);
283             }
284         }
285     }
286
287 users->CloseSearch(h);
288 }
289 //-----------------------------------------------------------------------------
290 void PING::AddUser(USER_PTR u)
291 {
292 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
293
294 SetUserNotifiers(u);
295 usersList.push_back(u);
296 }
297 //-----------------------------------------------------------------------------
298 void PING::DelUser(USER_PTR u)
299 {
300 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
301
302 UnSetUserNotifiers(u);
303
304 list<USER_PTR>::iterator users_iter;
305 users_iter = usersList.begin();
306
307 while (users_iter != usersList.end())
308     {
309     if (u == *users_iter)
310         {
311         usersList.erase(users_iter);
312         break;
313         }
314     ++users_iter;
315     }
316 }
317 //-----------------------------------------------------------------------------
318 void CHG_CURRIP_NOTIFIER_PING::Notify(const uint32_t & oldIP, const uint32_t & newIP)
319 {
320 ping.pinger.DelIP(oldIP);
321 if (newIP)
322     {
323     ping.pinger.AddIP(newIP);
324     }
325 }
326 //-----------------------------------------------------------------------------
327 void CHG_IPS_NOTIFIER_PING::Notify(const USER_IPS & oldIPS, const USER_IPS & newIPS)
328 {
329 if (oldIPS.OnlyOneIP())
330     {
331     ping.pinger.DelIP(oldIPS[0].ip);
332     }
333
334 if (newIPS.OnlyOneIP())
335     {
336     ping.pinger.AddIP(newIPS[0].ip);
337     }
338 }
339 //-----------------------------------------------------------------------------
340 void ADD_USER_NONIFIER_PING::Notify(const USER_PTR & user)
341 {
342 ping.AddUser(user);
343 }
344 //-----------------------------------------------------------------------------
345 void DEL_USER_NONIFIER_PING::Notify(const USER_PTR & user)
346 {
347 ping.DelUser(user);
348 }
349 //-----------------------------------------------------------------------------