Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / usr / sync.c

diff --git a/qemu/roms/ipxe/src/usr/sync.c b/qemu/roms/ipxe/src/usr/sync.c
new file mode 100644 (file)
index 0000000..f7a04c4
--- /dev/null
+++ b/qemu/roms/ipxe/src/usr/sync.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stddef.h>
+#include <ipxe/job.h>
+#include <ipxe/monojob.h>
+#include <ipxe/pending.h>
+#include <usr/sync.h>
+
+/** @file
+ *
+ * Wait for pending operations to complete
+ *
+ */
+
+/**
+ * Report progress
+ *
+ * @v intf             Interface
+ * @v progress         Progress report to fill in
+ * @ret ongoing_rc     Ongoing job status code (if known)
+ */
+static int sync_progress ( struct interface *intf,
+                          struct job_progress *progress __unused ) {
+
+       /* Terminate successfully if no pending operations remain */
+       if ( ! have_pending() )
+               intf_close ( intf, 0 );
+
+       return 0;
+}
+
+/** Synchroniser interface operations */
+static struct interface_operation sync_intf_op[] = {
+       INTF_OP ( job_progress, struct interface *, sync_progress ),
+};
+
+/** Synchroniser interface descriptor */
+static struct interface_descriptor sync_intf_desc =
+       INTF_DESC_PURE ( sync_intf_op );
+
+/** Synchroniser */
+static struct interface sync_intf = INTF_INIT ( sync_intf_desc );
+
+/**
+ * Wait for pending operations to complete
+ *
+ * @v timeout          Timeout period, in ticks (0=indefinite)
+ * @ret rc             Return status code
+ */
+int sync ( unsigned long timeout ) {
+
+       /* Attach synchroniser and wait for completion */
+       intf_plug_plug ( &monojob, &sync_intf );
+       return monojob_wait ( NULL, timeout );
+}