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/* Copyright (c) 2021, Nokia
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/*
* ODP CLI Helper Example
*
* This example shows how to start and stop ODP CLI using the CLI helper
* API functions. This example application can also be used to try out
* the CLI by connecting to a running application with a telnet client.
*/
#include <odp_api.h>
#include <odp/helper/odph_api.h>
#include <stdio.h>
#include <stdint.h>
#include <signal.h>
typedef struct {
int time;
char *addr;
uint16_t port;
} options_t;
static void usage(const char *prog)
{
printf("\n"
"Usage: %s [options]\n"
"\n"
"OPTIONS:\n"
" -t, --time <sec> Keep CLI open for <sec> seconds. (default -1 (infinite))\n"
" -a, --address <addr> Bind listening socket to IP address <addr>.\n"
" -p, --port <port> Bind listening socket to port <port>.\n"
"\n"
"ODP helper defaults are used for address and port, if the options are\n"
"not given.\n"
"\n",
prog);
}
static void parse_args(int argc, char *argv[], options_t *opt)
{
static const struct option longopts[] = {
{ "time", required_argument, NULL, 't' },
{ "address", required_argument, NULL, 'a' },
{ "port", required_argument, NULL, 'p' },
{ "help", no_argument, NULL, 'h' },
{ NULL, 0, NULL, 0 }
};
static const char *shortopts = "+t:a:p:h";
while (1) {
int c = getopt_long(argc, argv, shortopts, longopts, NULL);
if (c == -1)
break; /* No more options */
switch (c) {
case 't':
opt->time = atoi(optarg);
break;
case 'a':
opt->addr = optarg;
break;
case 'p':
opt->port = atoi(optarg);
break;
default:
usage(argv[0]);
exit(EXIT_SUCCESS);
break;
}
}
optind = 1; /* reset 'extern optind' from the getopt lib */
}
static volatile int shutdown_sig;
static void sig_handler(int signo)
{
(void)signo;
shutdown_sig = 1;
}
static void my_cmd(int argc, char *argv[])
{
odph_cli_log("%s(%d): %s\n", __FILE__, __LINE__, __func__);
for (int i = 0; i < argc; i++)
odph_cli_log("argv[%d]: %s\n", i, argv[i]);
}
static int cli_server(void *arg ODP_UNUSED)
{
/* Run CLI server. */
if (odph_cli_run()) {
ODPH_ERR("odph_cli_run() failed.\n");
exit(EXIT_FAILURE);
}
return 0;
}
int main(int argc, char *argv[])
{
signal(SIGINT, sig_handler);
odph_helper_options_t helper_options;
/* Let helper collect its own arguments (e.g. --odph_proc) */
argc = odph_parse_options(argc, argv);
if (odph_options(&helper_options)) {
ODPH_ERR("Error: reading ODP helper options failed.\n");
exit(EXIT_FAILURE);
}
odp_init_t init;
odp_init_param_init(&init);
init.mem_model = helper_options.mem_model;
options_t opt = {
.time = -1,
.addr = NULL,
.port = 0,
};
parse_args(argc, argv, &opt);
/* Initialize ODP. */
odp_instance_t inst;
if (odp_init_global(&inst, &init, NULL)) {
ODPH_ERR("Global init failed.\n");
exit(EXIT_FAILURE);
}
if (odp_init_local(inst, ODP_THREAD_CONTROL)) {
ODPH_ERR("Local init failed.\n");
exit(EXIT_FAILURE);
}
/* Prepare CLI parameters. */
odph_cli_param_t cli_param;
odph_cli_param_init(&cli_param);
if (opt.addr)
cli_param.address = opt.addr;
if (opt.port)
cli_param.port = opt.port;
/* Initialize CLI helper. */
if (odph_cli_init(inst, &cli_param)) {
ODPH_ERR("CLI helper initialization failed.\n");
exit(EXIT_FAILURE);
}
/* Register user command. */
if (odph_cli_register_command("my_command", my_cmd,
"Example user command.")) {
ODPH_ERR("Registering user command failed.\n");
exit(EXIT_FAILURE);
}
/* Create server thread. */
odp_cpumask_t cpumask;
odph_thread_common_param_t thr_common;
odph_thread_param_t thr_param;
odph_thread_t thr_server;
if (odp_cpumask_default_control(&cpumask, 1) != 1) {
ODPH_ERR("Failed to get default CPU mask.\n");
exit(EXIT_FAILURE);
}
odph_thread_common_param_init(&thr_common);
thr_common.instance = inst;
thr_common.cpumask = &cpumask;
odph_thread_param_init(&thr_param);
thr_param.thr_type = ODP_THREAD_CONTROL;
thr_param.start = cli_server;
memset(&thr_server, 0, sizeof(thr_server));
if (odph_thread_create(&thr_server, &thr_common, &thr_param, 1) != 1) {
ODPH_ERR("Failed to create server thread.\n");
exit(EXIT_FAILURE);
}
printf("CLI server started on %s:%d\n", cli_param.address,
cli_param.port);
/* Wait for the given number of seconds. */
for (int i = 0; (opt.time < 0 || i < opt.time) && !shutdown_sig; i++)
odp_time_wait_ns(ODP_TIME_SEC_IN_NS);
printf("Stopping CLI server.\n");
/* Stop CLI server. */
if (odph_cli_stop()) {
ODPH_ERR("CLI stop failed.\n");
exit(EXIT_FAILURE);
}
/* Wait for server thread to exit. */
if (odph_thread_join(&thr_server, 1) != 1) {
ODPH_ERR("Failed to join server thread.\n");
exit(EXIT_FAILURE);
}
/* Terminate CLI helper. */
if (odph_cli_term()) {
ODPH_ERR("CLI helper termination failed.\n");
exit(EXIT_FAILURE);
}
/* Terminate ODP. */
if (odp_term_local()) {
ODPH_ERR("Local term failed.\n");
exit(EXIT_FAILURE);
}
if (odp_term_global(inst)) {
ODPH_ERR("Global term failed.\n");
exit(EXIT_FAILURE);
}
return 0;
}
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