Fix cygw32 build break

[bpt/emacs.git] / src / w32proc.c

diff --git a/src/w32proc.c b/src/w32proc.c
index 9b111b4..ddc6826 100644 (file)
--- a/src/w32proc.c
+++ b/src/w32proc.c
@@ -1220,13 +1220,22 @@ waitpid (pid_t pid, int *status, int options)
     {
       QUIT;
       active = WaitForMultipleObjects (nh, wait_hnd, FALSE, timeout_ms);
-    } while (active == WAIT_TIMEOUT);
+    } while (active == WAIT_TIMEOUT && !dont_wait);
 
   if (active == WAIT_FAILED)
     {
       errno = EBADF;
       return -1;
     }
+  else if (active == WAIT_TIMEOUT && dont_wait)
+    {
+      /* PID specifies our subprocess, but it didn't exit yet, so its
+        status is not yet available.  */
+#ifdef FULL_DEBUG
+      DebPrint (("Wait: PID %d not reap yet\n", cp->pid));
+#endif
+      return 0;
+    }
   else if (active >= WAIT_OBJECT_0
           && active < WAIT_OBJECT_0+MAXIMUM_WAIT_OBJECTS)
     {
@@ -1274,33 +1283,7 @@ waitpid (pid_t pid, int *status, int options)
 #endif
 
   if (status)
-    {
-      *status = retval;
-    }
-  else if (synch_process_alive)
-    {
-      synch_process_alive = 0;
-
-      /* Report the status of the synchronous process.  */
-      if (WIFEXITED (retval))
-       synch_process_retcode = WEXITSTATUS (retval);
-      else if (WIFSIGNALED (retval))
-       {
-         int code = WTERMSIG (retval);
-         const char *signame;
-
-         synchronize_system_messages_locale ();
-         signame = strsignal (code);
-
-         if (signame == 0)
-           signame = "unknown";
-
-         synch_process_death = signame;
-       }
-
-      reap_subprocess (cp);
-    }
-
+    *status = retval;
   reap_subprocess (cp);
 
   return pid;
@@ -2035,7 +2018,24 @@ count_children:
             (*) Note that MsgWaitForMultipleObjects above is an
             internal dispatch point for messages that are sent to
             windows created by this thread.  */
-         drain_message_queue ();
+         if (drain_message_queue ()
+             /* If drain_message_queue returns non-zero, that means
+                we received a WM_EMACS_FILENOTIFY message.  If this
+                is a TTY frame, we must signal the caller that keyboard
+                input is available, so that w32_console_read_socket
+                will be called to pick up the notifications.  If we
+                don't do that, file notifications will only work when
+                the Emacs TTY frame has focus.  */
+             && FRAME_TERMCAP_P (SELECTED_FRAME ())
+             /* they asked for stdin reads */
+             && FD_ISSET (0, &orfds)
+             /* the stdin handle is valid */
+             && keyboard_handle)
+           {
+             FD_SET (0, rfds);
+             if (nr == 0)
+               nr = 1;
+           }
        }
       else if (active >= nh)
        {
@@ -2139,6 +2139,10 @@ sys_kill (int pid, int sig)
   int need_to_free = 0;
   int rc = 0;
 
+  /* Each process is in its own process group.  */
+  if (pid < 0)
+    pid = -pid;
+
   /* Only handle signals that will result in the process dying */
   if (sig != SIGINT && sig != SIGKILL && sig != SIGQUIT && sig != SIGHUP)
     {