[Suspend2][ 04/21] [Suspend2] Process abort request.

[Nigel Cunningham <nigel@suspend2.net>]

Handle a request via the userui that we abort a cycle. This is ignored at
resume time or if we're already aborting.

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

 kernel/power/ui.c |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/kernel/power/ui.c b/kernel/power/ui.c
index 0441be5..365c033 100644
--- a/kernel/power/ui.c
+++ b/kernel/power/ui.c
@@ -92,3 +92,29 @@ void userui_redraw(void)
 			USERUI_MSG_REDRAW, NULL, 0);
 }
 
+/* request_abort_suspend
+ *
+ * Description:	Handle the user requesting the cancellation of a suspend by
+ * 		pressing escape.
+ * Callers:	Invoked from a netlink packet from userspace when the user presses
+ * 	 	escape.
+ */
+void request_abort_suspend(void)
+{
+	if (test_result_state(SUSPEND_ABORT_REQUESTED))
+		return;
+
+	if (test_suspend_state(SUSPEND_NOW_RESUMING)) {
+		suspend_prepare_status(CLEAR_BAR, "Escape pressed. "
+					"Powering down again.");
+		suspend_power_down();
+	} else {
+		suspend_prepare_status(CLEAR_BAR, "--- ESCAPE PRESSED :"
+					" ABORTING PROCESS ---");
+		set_result_state(SUSPEND_ABORTED);
+		set_result_state(SUSPEND_ABORT_REQUESTED);
+	
+		wake_up_interruptible(&userui_wait_for_key);
+	}
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net
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