patch 8.0.0753: no size reports to a job running in a terminal
Problem: A job running in a terminal does not get notified of changes in
the terminal size.
Solution: Use ioctl() and SIGWINCH to report the terminal size.
diff --git a/src/os_unix.c b/src/os_unix.c
index 4caf38b..f2ab7b1 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -3918,6 +3918,44 @@
return OK;
}
+#if defined(FEAT_TERMINAL) || defined(PROTO)
+/*
+ * Report the windows size "rows" and "cols" to tty "fd".
+ */
+ int
+mch_report_winsize(int fd, int rows, int cols)
+{
+# ifdef TIOCSWINSZ
+ struct winsize ws;
+
+ ws.ws_col = cols;
+ ws.ws_row = rows;
+ ws.ws_xpixel = cols * 5;
+ ws.ws_ypixel = rows * 10;
+ if (ioctl(fd, TIOCSWINSZ, &ws) == 0)
+ {
+ ch_log(NULL, "ioctl(TIOCSWINSZ) success");
+ return OK;
+ }
+ ch_log(NULL, "ioctl(TIOCSWINSZ) failed");
+# else
+# ifdef TIOCSSIZE
+ struct ttysize ts;
+
+ ts.ts_cols = cols;
+ ts.ts_lines = rows;
+ if (ioctl(fd, TIOCSSIZE, &ws) == 0)
+ {
+ ch_log(NULL, "ioctl(TIOCSSIZE) success");
+ return OK;
+ }
+ ch_log(NULL, "ioctl(TIOCSSIZE) failed");
+# endif
+# endif
+ return FAIL;
+}
+#endif
+
/*
* Try to set the window size to Rows and Columns.
*/
@@ -5473,6 +5511,10 @@
sig = SIGINT;
else if (STRCMP(how, "kill") == 0)
sig = SIGKILL;
+#ifdef SIGWINCH
+ else if (STRCMP(how, "winch") == 0)
+ sig = SIGWINCH;
+#endif
else if (isdigit(*how))
sig = atoi((char *)how);
else