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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., 675 Mass Ave, Cambridge, MA 02139, 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 <string.h>
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+#include <stdio.h>
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+#include <getopt.h>
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+#include <ipxe/command.h>
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+#include <ipxe/parseopt.h>
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+#include <ipxe/timer.h>
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+#include <ipxe/pending.h>
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+
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+/** @file
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+ *
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+ * "sync" command
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+ *
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+ */
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+
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+/** "sync" options */
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+struct sync_options {
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+ /** Timeout */
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+ unsigned int timeout;
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+};
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+
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+/** "sync" option list */
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+static struct option_descriptor sync_opts[] = {
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+ OPTION_DESC ( "timeout", 't', required_argument,
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+ struct sync_options, timeout, parse_integer ),
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+};
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+
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+/** "sync" command descriptor */
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+static struct command_descriptor sync_cmd =
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+ COMMAND_DESC ( struct sync_options, sync_opts, 0, 0,
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+ "[--timeout <timeout>]" );
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+
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+/**
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+ * "sync" command
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+ *
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+ * @v argc Argument count
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+ * @v argv Argument list
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+ * @ret rc Return status code
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+ */
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+static int sync_exec ( int argc, char **argv ) {
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+ struct sync_options opts;
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+ unsigned long timeout;
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+ int rc;
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+
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+ /* Parse options */
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+ if ( ( rc = parse_options ( argc, argv, &sync_cmd, &opts ) ) != 0 )
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+ return rc;
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+
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+ /* Wait for pending operations to complete */
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+ timeout = ( ( opts.timeout * TICKS_PER_SEC ) / 1000 );
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+ if ( ( rc = pending_wait ( timeout ) ) != 0 ) {
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+ printf ( "Operations did not complete: %s\n", strerror ( rc ) );
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+ return rc;
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+ }
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+
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+ return 0;
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+}
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+
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+/** Sync commands */
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+struct command sync_command __command = {
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+ .name = "sync",
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+ .exec = sync_exec,
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+};
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