patch 8.0.0854: no redraw after terminal was closed

Problem:    No redraw after terminal was closed.
Solution:   Set typebuf_was_filled. (Yasuhiro Matsumoto, closes #1925, closes
            #1924)  Add function to check for messages even when input is
            available.

src/os_mswin.c

@@ -809,6 +809,18 @@ mch_char_avail(void)
     /* never used */
     return TRUE;
 }
+
+# if defined(FEAT_TERMINAL) || defined(PROTO)
+/*
+ * Check for any pending input or messages.
+ */
+    int
+mch_check_messages(void)
+{
+    /* TODO: check for messages */
+    return TRUE;
+}
+# endif
 #endif
 
 

src/os_unix.c

@@ -175,8 +175,8 @@ typedef int waitstatus;
 #endif
 static pid_t wait4pid(pid_t, waitstatus *);
 
-static int  WaitForChar(long msec, int *interrupted);
-static int  WaitForCharOrMouse(long msec, int *interrupted);
+static int  WaitForChar(long msec, int *interrupted, int ignore_input);
+static int  WaitForCharOrMouse(long msec, int *interrupted, int ignore_input);
 #if defined(__BEOS__) || defined(VMS)
 int  RealWaitForChar(int, long, int *, int *interrupted);
 #else
@@ -481,7 +481,7 @@ mch_inchar(
 	 * We want to be interrupted by the winch signal
 	 * or by an event on the monitored file descriptors.
 	 */
-	if (WaitForChar(wait_time, &interrupted))
+	if (WaitForChar(wait_time, &interrupted, FALSE))
 	{
 	    /* If input was put directly in typeahead buffer bail out here. */
 	    if (typebuf_changed(tb_change_cnt))
@@ -536,9 +536,20 @@ handle_resize(void)
     int
 mch_char_avail(void)
 {
-    return WaitForChar(0L, NULL);
+    return WaitForChar(0L, NULL, FALSE);
 }
 
+#if defined(FEAT_TERMINAL) || defined(PROTO)
+/*
+ * Check for any pending input or messages.
+ */
+    int
+mch_check_messages(void)
+{
+    return WaitForChar(0L, NULL, TRUE);
+}
+#endif
+
 #if defined(HAVE_TOTAL_MEM) || defined(PROTO)
 # ifdef HAVE_SYS_RESOURCE_H
 #  include <sys/resource.h>
@@ -718,7 +729,7 @@ mch_delay(long msec, int ignoreinput)
 	in_mch_delay = FALSE;
     }
     else
-	WaitForChar(msec, NULL);
+	WaitForChar(msec, NULL, FALSE);
 }
 
 #if defined(HAVE_STACK_LIMIT) \
@@ -5616,13 +5627,15 @@ mch_breakcheck(int force)
  * from inbuf[].
  * "msec" == -1 will block forever.
  * Invokes timer callbacks when needed.
+ * When "ignore_input" is TRUE even check for pending input when input is
+ * already available.
  * "interrupted" (if not NULL) is set to TRUE when no character is available
  * but something else needs to be done.
  * Returns TRUE when a character is available.
  * When a GUI is being used, this will never get called -- webb
  */
     static int
-WaitForChar(long msec, int *interrupted)
+WaitForChar(long msec, int *interrupted, int ignore_input)
 {
 #ifdef FEAT_TIMERS
     long    due_time;
@@ -5631,7 +5644,7 @@ WaitForChar(long msec, int *interrupted)
 
     /* When waiting very briefly don't trigger timers. */
     if (msec >= 0 && msec < 10L)
-	return WaitForCharOrMouse(msec, NULL);
+	return WaitForCharOrMouse(msec, NULL, ignore_input);
 
     while (msec < 0 || remaining > 0)
     {
@@ -5645,7 +5658,7 @@ WaitForChar(long msec, int *interrupted)
 	}
 	if (due_time <= 0 || (msec > 0 && due_time > remaining))
 	    due_time = remaining;
-	if (WaitForCharOrMouse(due_time, interrupted))
+	if (WaitForCharOrMouse(due_time, interrupted, ignore_input))
 	    return TRUE;
 	if (interrupted != NULL && *interrupted)
 	    /* Nothing available, but need to return so that side effects get
@@ -5656,20 +5669,21 @@ WaitForChar(long msec, int *interrupted)
     }
     return FALSE;
 #else
-    return WaitForCharOrMouse(msec, interrupted);
+    return WaitForCharOrMouse(msec, interrupted, ignore_input);
 #endif
 }
 
 /*
  * Wait "msec" msec until a character is available from the mouse or keyboard
  * or from inbuf[].
  * "msec" == -1 will block forever.
+ * for "ignore_input" see WaitForCharOr().
  * "interrupted" (if not NULL) is set to TRUE when no character is available
  * but something else needs to be done.
  * When a GUI is being used, this will never get called -- webb
  */
     static int
-WaitForCharOrMouse(long msec, int *interrupted)
+WaitForCharOrMouse(long msec, int *interrupted, int ignore_input)
 {
 #ifdef FEAT_MOUSE_GPM
     int		gpm_process_wanted;
@@ -5679,7 +5693,7 @@ WaitForCharOrMouse(long msec, int *interrupted)
 #endif
     int		avail;
 
-    if (input_available())	    /* something in inbuf[] */
+    if (!ignore_input && input_available())	    /* something in inbuf[] */
 	return 1;
 
 #if defined(FEAT_MOUSE_DEC)
@@ -5722,7 +5736,7 @@ WaitForCharOrMouse(long msec, int *interrupted)
 # endif
 	if (!avail)
 	{
-	    if (input_available())
+	    if (!ignore_input && input_available())
 		return 1;
 # ifdef FEAT_XCLIPBOARD
 	    if (rest == 0 || !do_xterm_trace())

src/os_win32.c

@@ -1400,10 +1400,11 @@ handle_focus_event(INPUT_RECORD ir)
 /*
  * Wait until console input from keyboard or mouse is available,
  * or the time is up.
+ * When "ignore_input" is TRUE even wait when input is available.
  * Return TRUE if something is available FALSE if not.
  */
     static int
-WaitForChar(long msec)
+WaitForChar(long msec, int ignore_input)
 {
     DWORD	    dwNow = 0, dwEndTime = 0;
     INPUT_RECORD    ir;
@@ -1440,7 +1441,7 @@ WaitForChar(long msec)
 		|| g_nMouseClick != -1
 #endif
 #ifdef FEAT_CLIENTSERVER
-		|| input_available()
+		|| (!ignore_input && input_available())
 #endif
 	   )
 	    return TRUE;
@@ -1583,8 +1584,19 @@ WaitForChar(long msec)
     int
 mch_char_avail(void)
 {
-    return WaitForChar(0L);
+    return WaitForChar(0L, FALSE);
 }
+
+# if defined(FEAT_TERMINAL) || defined(PROTO)
+/*
+ * Check for any pending input or messages.
+ */
+    int
+mch_check_messages(void)
+{
+    return WaitForChar(0L, TRUE);
+}
+# endif
 #endif
 
 /*
@@ -1614,7 +1626,7 @@ tgetch(int *pmodifiers, WCHAR *pch2)
 	DWORD cRecords = 0;
 
 #ifdef FEAT_CLIENTSERVER
-	(void)WaitForChar(-1L);
+	(void)WaitForChar(-1L, FALSE);
 	if (input_available())
 	    return 0;
 # ifdef FEAT_MOUSE
@@ -1681,7 +1693,7 @@ mch_inchar(
 
     if (time >= 0)
     {
-	if (!WaitForChar(time))     /* no character available */
+	if (!WaitForChar(time, FALSE))     /* no character available */
 	    return 0;
     }
     else    /* time == -1, wait forever */
@@ -1693,7 +1705,7 @@ mch_inchar(
 	 * write the autoscript file to disk.  Or cause the CursorHold event
 	 * to be triggered.
 	 */
-	if (!WaitForChar(p_ut))
+	if (!WaitForChar(p_ut, FALSE))
 	{
 #ifdef FEAT_AUTOCMD
 	    if (trigger_cursorhold() && maxlen >= 3)
@@ -1723,7 +1735,7 @@ mch_inchar(
     /* Keep looping until there is something in the typeahead buffer and more
      * to get and still room in the buffer (up to two bytes for a char and
      * three bytes for a modifier). */
-    while ((typeaheadlen == 0 || WaitForChar(0L))
+    while ((typeaheadlen == 0 || WaitForChar(0L, FALSE))
 					  && typeaheadlen + 5 <= TYPEAHEADLEN)
     {
 	if (typebuf_changed(tb_change_cnt))
@@ -5721,7 +5733,7 @@ cursor_visible(BOOL fVisible)
 
 
 /*
- * write `cbToWrite' bytes in `pchBuf' to the screen
+ * Write "cbToWrite" bytes in `pchBuf' to the screen.
  * Returns the number of bytes actually written (at least one).
  */
     static DWORD
@@ -5828,7 +5840,7 @@ mch_write(
 
 	if (p_wd)
 	{
-	    WaitForChar(p_wd);
+	    WaitForChar(p_wd, FALSE);
 	    if (prefix != 0)
 		prefix = 1;
 	}
@@ -6120,7 +6132,7 @@ mch_delay(
 # endif
 	    Sleep((int)msec);
     else
-	WaitForChar(msec);
+	WaitForChar(msec, FALSE);
 #endif
 }
 

src/proto/os_unix.pro

@@ -3,6 +3,7 @@ int mch_chdir(char *path);
 void mch_write(char_u *s, int len);
 int mch_inchar(char_u *buf, int maxlen, long wtime, int tb_change_cnt);
 int mch_char_avail(void);
+int mch_check_messages(void);
 long_u mch_total_mem(int special);
 void mch_delay(long msec, int ignoreinput);
 int mch_stackcheck(char *p);

src/proto/os_win32.pro

@@ -8,6 +8,7 @@ void PlatformId(void);
 void mch_setmouse(int on);
 void mch_update_cursor(void);
 int mch_char_avail(void);
+int mch_check_messages(void);
 int mch_inchar(char_u *buf, int maxlen, long time, int tb_change_cnt);
 void mch_init(void);
 void mch_exit(int r);

src/terminal.c

@@ -1305,6 +1305,7 @@ term_channel_closed(channel_T *ch)
 
 	/* Need to break out of vgetc(). */
 	ins_char_typebuf(K_IGNORE);
+	typebuf_was_filled = TRUE;
 
 	term = curbuf->b_term;
 	if (term != NULL)
@@ -2140,31 +2141,36 @@ f_term_wait(typval_T *argvars, typval_T *rettv UNUSED)
 	ch_log(NULL, "term_wait(): invalid argument");
 	return;
     }
+    if (buf->b_term->tl_job == NULL)
+    {
+	ch_log(NULL, "term_wait(): no job to wait for");
+	return;
+    }
 
     /* Get the job status, this will detect a job that finished. */
-    if (buf->b_term->tl_job == NULL
-	    || STRCMP(job_status(buf->b_term->tl_job), "dead") == 0)
+    if (STRCMP(job_status(buf->b_term->tl_job), "dead") == 0)
     {
 	/* The job is dead, keep reading channel I/O until the channel is
 	 * closed. */
+	ch_log(NULL, "term_wait(): waiting for channel to close");
 	while (buf->b_term != NULL && !buf->b_term->tl_channel_closed)
 	{
-	    mch_char_avail();
+	    mch_check_messages();
 	    parse_queued_messages();
 	    ui_delay(10L, FALSE);
 	}
-	mch_char_avail();
+	mch_check_messages();
 	parse_queued_messages();
     }
     else
     {
-	mch_char_avail();
+	mch_check_messages();
 	parse_queued_messages();
 
 	/* Wait for 10 msec for any channel I/O. */
 	/* TODO: use delay from optional argument */
 	ui_delay(10L, TRUE);
-	mch_char_avail();
+	mch_check_messages();
 
 	/* Flushing messages on channels is hopefully sufficient.
 	 * TODO: is there a better way? */

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    854,
 /**/
     853,
 /**/