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Elixir Cross Referencer

/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <getopt.h>

#include <rte_memory.h>

#include "args.h"
#include "common.h"
#include "init.h"

/* global var for number of clients - extern in header */
uint16_t client_id;
char *server_ip;
int server_port;

static const char *progname;

/**
 * Prints out usage information to stdout
 */
static void
usage(void)
{
	RTE_LOG(INFO, APP,
	    "%s [EAL options] -- -p PORTMASK -n CLIENT_ID [-s NUM_SOCKETS]\n"
	    " -p PORTMASK: hexadecimal bitmask of ports to use\n"
	    " -n CLIENT_ID: the requested if of current client\n"
	    , progname);
}

/**
 * The application specific arguments follow the DPDK-specific
 * arguments which are stripped by the DPDK init. This function
 * processes these application arguments, printing usage info
 * on error.
 */
int
parse_app_args(uint16_t max_ports, int argc, char *argv[])
{
	int option_index, opt;
	char **argvopt = argv;
	static struct option lgopts[] = { {0} };
	int ret;

	progname = argv[0];

	while ((opt = getopt_long(argc, argvopt, "n:p:s:", lgopts,
			&option_index)) != EOF) {
		switch (opt) {
		case 'p':
			if (parse_portmask(ports, max_ports, optarg) != 0) {
				usage();
				return -1;
			}
			break;
		case 'n':
			if (parse_num_clients(&client_id, optarg) != 0) {
				usage();
				return -1;
			}
			break;
		case 's':
			ret = parse_server(&server_ip, &server_port, optarg);
			if (ret != 0) {
				usage();
				return -1;
			}
			break;
		default:
			RTE_LOG(ERR, APP, "Unknown option '%c'\n", opt);
			usage();
			return -1;
		}
	}

	return 0;
}