[Suspend2][ 13/21] [Suspend2] Main message output.

[Nigel Cunningham <nigel@suspend2.net>]

Output one of the main messages describing our progress, possibly also
clearing the progress bar. These messages are printk'd if there is no
active userui.

Signed-off-by: Nigel Cunningham <nigel@suspend2.net>

 kernel/power/ui.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/kernel/power/ui.c b/kernel/power/ui.c
index 6542f3f..b11edb8 100644
--- a/kernel/power/ui.c
+++ b/kernel/power/ui.c
@@ -439,3 +439,30 @@ void abort_suspend(const char *fmt, ...)
 	}
 }
 
+/* suspend_prepare_status
+ * Description:	Prepare the 'nice display', drawing the header and version,
+ * 		along with the current action and perhaps also resetting the
+ * 		progress bar.
+ * Arguments:	
+ * 		int clearbar: Whether to reset the progress bar.
+ * 		const char *fmt, ...: The action to be displayed.
+ */
+void suspend_prepare_status(int clearbar, const char *fmt, ...)
+{
+	va_list args;
+
+	if (fmt) {
+		va_start(args, fmt);
+		lastheader_message_len = vsnprintf(lastheader, 512, fmt, args);
+		va_end(args);
+	}
+
+	if (clearbar)
+		suspend_update_status(0, 1, NULL);
+
+	__suspend_message(0, SUSPEND_STATUS, 1, lastheader, NULL);
+
+	if (ui_helper_data.pid == -1)
+		printk(KERN_EMERG "%s\n", lastheader);
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net