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  1. // inetcmon(InterNET-Connected-MONitor) by (-_-)
  2.  
  3. #pragma comment(lib, "Kernel32.lib")
  4.  
  5. #include <cstdio>
  6. #include <cstdlib>
  7. #include <deque>
  8. #include <windows.h>
  9.  
  10. using namespace std;
  11.  
  12. typedef HRESULT (*IS_INTERNET_CONNECTED_PROC)(void);
  13.  
  14. typedef struct {
  15.     bool connected;
  16.     DWORD tickCount;
  17. } RECORD;
  18.  
  19. static const DWORD DEFAULT_INTERVAL_SECS = 1;
  20. static const DWORD M1_MILLISECS = 60 * 1000;
  21. static const DWORD M10_MILLISECS = 10 * M1_MILLISECS;
  22. static const DWORD M30_MILLISECS = 30 * M1_MILLISECS;
  23. static const DWORD H1_MILLISECS = 60 * M1_MILLISECS;
  24. static const DWORD H2_MILLISECS = 2 * H1_MILLISECS;
  25.  
  26. int main(int argc, char** argv) {
  27.     if (argc > 2) {
  28.         fprintf(stderr, "usage: %s [intervalSecs=%d]\n", argv[0], DEFAULT_INTERVAL_SECS);
  29.         return 1;
  30.     }
  31.     DWORD intervalSecs = DEFAULT_INTERVAL_SECS;
  32.     if (argc >= 2) {
  33.         DWORD intervalSecs = atoi(argv[1]);
  34.     }
  35.     DWORD intervalMillisecs = intervalSecs * 1000;
  36.  
  37.     HMODULE connectDllModuleHandle = LoadLibrary("Connect.dll");
  38.     if (connectDllModuleHandle == NULL) {
  39.         fprintf(stderr, "error: GetModuleHandle\n");
  40.         return 1;
  41.     }
  42.     IS_INTERNET_CONNECTED_PROC IsInternetConnectedProc = 
  43.         (IS_INTERNET_CONNECTED_PROC)GetProcAddress(connectDllModuleHandle, "IsInternetConnected");
  44.     if (IsInternetConnectedProc == NULL) {
  45.         fprintf(stderr, "error: GetProcAddress\n");
  46.         return 1;
  47.     }
  48.  
  49.     deque<RECORD> recordDeque;
  50.     for (;;) {
  51.         DWORD now = GetTickCount();
  52.         RECORD record;
  53.         record.tickCount = now;
  54.         record.connected = IsInternetConnectedProc() == S_OK;
  55.         recordDeque.push_front(record);
  56.  
  57.         unsigned int m1DisconnectedSectionCount = 0;
  58.         unsigned int m10DisconnectedSectionCount = 0;
  59.         unsigned int m30DisconnectedSectionCount = 0;
  60.         unsigned int h1DisconnectedSectionCount = 0;
  61.         unsigned int h2DisconnectedSectionCount = 0;
  62.         bool previousConnected = true;
  63.         DWORD lastConnectedSectionStart = now;
  64.         bool lastConnectedSectionInside = true;
  65.         for (deque<RECORD>::iterator iter = recordDeque.begin(); iter != recordDeque.end(); iter++) {
  66.             DWORD elapsedMillisecs = now - iter->tickCount;
  67.             if (elapsedMillisecs >= H2_MILLISECS) {
  68.                 recordDeque.erase(iter, recordDeque.end());
  69.                 break;
  70.             }
  71.             bool disconnectedSectionEntering = previousConnected && !iter->connected;
  72.             if (disconnectedSectionEntering) h2DisconnectedSectionCount++;
  73.             if (elapsedMillisecs < H1_MILLISECS) {
  74.                 if (disconnectedSectionEntering) h1DisconnectedSectionCount++;
  75.                 if (elapsedMillisecs < M30_MILLISECS) {
  76.                     if (disconnectedSectionEntering) m30DisconnectedSectionCount++;
  77.                     if (elapsedMillisecs < M10_MILLISECS) {
  78.                         if (disconnectedSectionEntering) m10DisconnectedSectionCount++;
  79.                         if (elapsedMillisecs < M1_MILLISECS) {
  80.                             if (disconnectedSectionEntering) m1DisconnectedSectionCount++;
  81.                         }
  82.                     }
  83.                 }
  84.             }
  85.             if (lastConnectedSectionInside) {
  86.                 if (!iter->connected) {
  87.                     lastConnectedSectionInside = false;
  88.                 }
  89.                 else {
  90.                     lastConnectedSectionStart = iter->tickCount;
  91.                 }
  92.             }
  93.             previousConnected = iter->connected;
  94.         }
  95.         DWORD lastConnectedSectionMillisecs = now - lastConnectedSectionStart;
  96.         DWORD lastConnectedSectionSeconds = lastConnectedSectionMillisecs / 1000;
  97.         DWORD lastConnectedSectionMinutes = lastConnectedSectionSeconds / 60;
  98.         DWORD lastConnectedSectionHours = lastConnectedSectionMinutes / 60;
  99.         printf("%-12s 1m:%3d 10m:%3d 30m:%3d 1h:%3d 2h:%3d lastc:%02d:%02d:%02d\n", 
  100.             record.connected ? "CONNECTED" : "DISCONNECTED", 
  101.             m1DisconnectedSectionCount, 
  102.             m10DisconnectedSectionCount, 
  103.             m30DisconnectedSectionCount, 
  104.             h1DisconnectedSectionCount, 
  105.             h2DisconnectedSectionCount, 
  106.             lastConnectedSectionHours % 24, 
  107.             lastConnectedSectionMinutes % 60, 
  108.             lastConnectedSectionSeconds % 60);
  109.  
  110.         Sleep(intervalMillisecs);
  111.     }
  112.     return 0;
  113. }
  114.  
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https://ideone.com/abEupe
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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