ipxe/src/hci/commands/sync_cmd.c

/*
 * 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 <string.h>
#include <stdio.h>
#include <getopt.h>
#include <ipxe/command.h>
#include <ipxe/parseopt.h>
#include <ipxe/timer.h>
#include <ipxe/pending.h>

/** @file
 *
 * "sync" command
 *
 */

/** "sync" options */
struct sync_options {
	/** Timeout */
	unsigned int timeout;
};

/** "sync" option list */
static struct option_descriptor sync_opts[] = {
	OPTION_DESC ( "timeout", 't', required_argument,
		      struct sync_options, timeout, parse_integer ),
};

/** "sync" command descriptor */
static struct command_descriptor sync_cmd =
	COMMAND_DESC ( struct sync_options, sync_opts, 0, 0,
		       "[--timeout <timeout>]" );

/**
 * "sync" command
 *
 * @v argc		Argument count
 * @v argv		Argument list
 * @ret rc		Return status code
 */
static int sync_exec ( int argc, char **argv ) {
	struct sync_options opts;
	unsigned long timeout;
	int rc;

	/* Parse options */
	if ( ( rc = parse_options ( argc, argv, &sync_cmd, &opts ) ) != 0 )
		return rc;

	/* Wait for pending operations to complete */
	timeout = ( ( opts.timeout * TICKS_PER_SEC ) / 1000 );
	if ( ( rc = pending_wait ( timeout ) ) != 0 ) {
		printf ( "Operations did not complete: %s\n", strerror ( rc ) );
		return rc;
	}

	return 0;
}

/** Sync commands */
struct command sync_command __command = {
	.name = "sync",
	.exec = sync_exec,
};