Ever wonder why the SAME PEOPLE make up ALL the conspiracy theories?

[user/henk/code/inspircd.git] / win / inspircd_win32wrapper.cpp

diff --git a/win/inspircd_win32wrapper.cpp b/win/inspircd_win32wrapper.cpp
index e6f25df18f8d33837b4ea7a2401abec89accfb68..a25544aab95f3ab891b8fe68090017652b3f99df 100644 (file)
--- a/win/inspircd_win32wrapper.cpp
+++ b/win/inspircd_win32wrapper.cpp
@@ -654,3 +654,67 @@ int gettimeofday(struct timeval * tv, void * tz)
        tv->tv_usec  = (mstime - (tv->tv_sec * 1000)) * 1000;
     return 0;  
 }
+
+int __exceptionHandler(PEXCEPTION_POINTERS pExceptPtrs)
+{
+       SYSTEMTIME _time;
+       HANDLE hDump;
+       char mod[MAX_PATH*2];
+       char * pMod = mod;
+       char dump_filename[MAX_PATH];
+       MINIDUMP_EXCEPTION_INFORMATION dumpInfo;
+       DWORD code;
+
+       if(pExceptPtrs == NULL) {
+               __try {
+                       RaiseException(EXCEPTION_BREAKPOINT, 0, 0, NULL);
+               } __except(__exceptionHandler(GetExceptionInformation()), EXCEPTION_CONTINUE_EXECUTION) {}
+       }
+
+       printf("Exception caught at 0x%.8X! Attempting to write crash dump file.\n", (unsigned long)pExceptPtrs->ExceptionRecord->ExceptionAddress);
+
+       if(GetModuleFileName(0, mod, MAX_PATH*2) > 0)
+       {
+               if( (pMod = strrchr(mod, '\\')) != NULL )
+                       ++pMod;
+               else
+                       strcpy(mod, "unk");
+       }
+       else
+               strcpy(mod, "unk");
+
+       GetSystemTime(&_time);
+       snprintf(dump_filename, MAX_PATH, "dump-%s-%u-%u-%u-%u-%u-%u.dmp",
+               pMod, _time.wYear, _time.wMonth, _time.wDay, _time.wHour, _time.wMinute, _time.wSecond);
+
+       hDump = CreateFile(dump_filename, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH, 0);
+       if(hDump != INVALID_HANDLE_VALUE)
+       {
+               dumpInfo.ClientPointers = FALSE;
+               dumpInfo.ExceptionPointers = pExceptPtrs;
+               dumpInfo.ThreadId = GetCurrentThreadId();
+
+               /* let's write a full memory dump. insp shouldn't be using much memory anyway, and it will help a lot with debugging. */
+               MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hDump, MiniDumpWithFullMemory, &dumpInfo, NULL, NULL);
+               FlushFileBuffers(hDump);
+               CloseHandle(hDump);
+       }
+
+       /* check for a debugger */
+       __asm {
+               pushad
+               pushfd
+               mov eax, fs:[18h]
+               mov eax, dword ptr [eax+30h]
+               mov ebx, dword ptr [eax]
+               mov code, ebx
+               popfd
+               popad
+       }
+
+       /* break into debugger if we have one */
+       if(code & 0x10000)
+               return EXCEPTION_CONTINUE_SEARCH;
+       else    /* otherwise exit abnormally */
+               return EXCEPTION_CONTINUE_EXECUTION;
+}