+#ifdef W32_VEH
+/**
+ * Handles exceptions (useful for debugging).
+ * Issues a DebugBreak() call if the process is being debugged (not really
+ * useful - if the process is being debugged, this handler won't be invoked
+ * anyway). If it is not, runs a debugger from GNUNET_DEBUGGER env var,
+ * substituting first %u in it for PID, and the second one for the event,
+ * that should be set once the debugger attaches itself (otherwise the
+ * only way out of WaitForSingleObject() is to time out after 1 minute).
+ */
+LONG __stdcall
+GNWinVEH (PEXCEPTION_POINTERS ExceptionInfo)
+{
+ char debugger[MAX_PATH + 1];
+ char *debugger_env = NULL;
+ if (IsDebuggerPresent ())
+ {
+ DebugBreak ();
+ return EXCEPTION_CONTINUE_EXECUTION;
+ }
+ debugger_env = getenv ("GNUNET_DEBUGGER");
+ if (debugger_env != NULL)
+ {
+ STARTUPINFO si;
+ PROCESS_INFORMATION pi;
+ HANDLE event;
+ SECURITY_ATTRIBUTES sa;
+ memset (&si, 0, sizeof (si));
+ si.cb = sizeof (si);
+ memset (&pi, 0, sizeof (pi));
+ memset (&sa, 0, sizeof (sa));
+ sa.nLength = sizeof (sa);
+ sa.bInheritHandle = TRUE;
+ event = CreateEvent (&sa, FALSE, FALSE, NULL);
+ snprintf (debugger, MAX_PATH + 1, debugger_env, GetCurrentProcessId (), (uintptr_t) event);
+ debugger[MAX_PATH] = '\0';
+ if (0 != CreateProcessA (NULL, debugger, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi))
+ {
+ CloseHandle (pi.hProcess);
+ CloseHandle (pi.hThread);
+ WaitForSingleObject (event, 60000);
+ CloseHandle (event);
+ if (IsDebuggerPresent ())
+ {
+ return EXCEPTION_CONTINUE_EXECUTION;
+ }
+ }
+ else
+ CloseHandle (event);
+ }
+ return EXCEPTION_CONTINUE_SEARCH;
+}
+#endif
+
projects / oweals / gnunet.git / blobdiff