1 /*-------------------------------------------------------------------------
6 * Copyright (c) 1996-2014, PostgreSQL Global Development Group
8 * This is a replacement version of kill for Win32 which sends
9 * signals that the backend can recognize.
14 *-------------------------------------------------------------------------
22 pgkill(int pid, int sig)
29 /* we allow signal 0 here, but it will be ignored in pg_queue_signal */
30 if (sig >= PG_SIGNAL_COUNT || sig < 0)
37 /* No support for process groups */
42 /* special case for SIGKILL: just ask the system to terminate the target */
47 if ((prochandle = OpenProcess(PROCESS_TERMINATE, FALSE, (DWORD) pid)) == NULL)
52 if (!TerminateProcess(prochandle, 255))
54 _dosmaperr(GetLastError());
55 CloseHandle(prochandle);
58 CloseHandle(prochandle);
61 snprintf(pipename, sizeof(pipename), "\\\\.\\pipe\\pgsignal_%u", pid);
63 if (CallNamedPipe(pipename, &sigData, 1, &sigRet, 1, &bytes, 1000))
65 if (bytes != 1 || sigRet != sig)
73 switch (GetLastError())
75 case ERROR_BROKEN_PIPE:
79 * These arise transiently as a process is exiting. Treat them
80 * like POSIX treats a zombie process, reporting success.
84 case ERROR_FILE_NOT_FOUND:
85 /* pipe fully gone, so treat the process as gone */
88 case ERROR_ACCESS_DENIED:
92 errno = EINVAL; /* unexpected */