1 files changed, 37 insertions, 0 deletions
diff --git a/sys/gio/imdkern/imdclose.x b/sys/gio/imdkern/imdclose.x
new file mode 100644
index 00000000..7283f5db
--- /dev/null
+++ b/sys/gio/imdkern/imdclose.x
@@ -0,0 +1,37 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	"imd.h"
+
+# IMD_CLOSE -- Close the IMD translation kernel.  Close the spool file so
+# the output is finally plotted.  Free up storage.
+
+procedure imd_close()
+
+include	"imd.com"
+
+begin
+	# Check for a redundant imd_close call.
+	if (g_kt == NULL)
+	    return
+
+	# If there is anything in the metafile, flush it and add a frame
+	# advance if required for the device.
+
+	if (g_ndraw > 0 || g_nframes > 0) {
+	    # Does this device require a frame advance at end of metafile?
+	    if (IMD_ENDFRAME(g_kt) == YES)
+		call idk_frame (g_out)
+	}
+
+	# Close output metafile, disposing of it to the host system.
+	call idk_close (g_out)
+
+	# Return tty descriptor.
+	call ttycdes (g_tty)
+
+	# Free kernel data structures.
+	call mfree (IMD_SBUF(g_kt), TY_CHAR)
+	call mfree (g_kt, TY_STRUCT)
+
+	g_kt = NULL
+end