Added mg from an OpenBSD mirror site. Many thanks to the OpenBSD team and the mg...

[pd_readline] / mg / spawn.c

diff --git a/mg/spawn.c b/mg/spawn.c
new file mode 100644 (file)
index 0000000..13fd985
--- /dev/null
+++ b/mg/spawn.c
@@ -0,0 +1,48 @@
+/*     $OpenBSD: spawn.c,v 1.11 2006/08/01 22:16:03 jason Exp $        */
+
+/* This file is in the public domain. */
+
+/*
+ * Spawn.  Actually just suspends Mg.
+ * Assumes POSIX job control.
+ */
+
+#include "def.h"
+
+#include <termios.h>
+#include <term.h>
+
+/*
+ * This causes mg to send itself a stop signal.  It assumes the parent
+ * shell supports POSIX job control.  If the terminal supports an alternate
+ * screen, we will switch to it.
+ */
+/* ARGSUSED */
+int
+spawncli(int f, int n)
+{
+       sigset_t        oset;
+
+       /* Very similar to what vttidy() does. */
+       ttcolor(CTEXT);
+       ttnowindow();
+       ttmove(nrow - 1, 0);
+       if (epresf != FALSE) {
+               tteeol();
+               epresf = FALSE;
+       }
+       if (ttcooked() == FALSE)
+               return (FALSE);
+
+       /* Exit application mode and tidy. */
+       tttidy();
+       ttflush();
+       (void)sigprocmask(SIG_SETMASK, NULL, &oset);
+       (void)kill(0, SIGTSTP);
+       (void)sigprocmask(SIG_SETMASK, &oset, NULL);
+       ttreinit();
+
+       /* Force repaint. */
+       sgarbf = TRUE;
+       return (ttraw());
+}