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