fbb9430ec4
This is a helper function that eliminates a lot of duplicated code in our target applications, specifically around common command line argument parsing and usage messages. This patch only moves the iscsi, nvmf and vhost targets to use this function, but there are other test/example applications that could also take advantage of it to reduce duplicated code and improve consistency. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I1903de3daed90ac6282b006a8283b9df07ce37e9 Reviewed-on: https://review.gerrithub.io/386542 Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "spdk/stdinc.h"
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#include "spdk/log.h"
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#include "spdk/conf.h"
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#include "spdk/event.h"
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#include "spdk/vhost.h"
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#define SPDK_VHOST_DEFAULT_CONFIG "/usr/local/etc/spdk/vhost.conf"
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#define SPDK_VHOST_DEFAULT_ENABLE_COREDUMP true
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#define SPDK_VHOST_DEFAULT_MEM_SIZE 1024
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static const char *g_socket_path = NULL;
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static const char *g_pid_path = NULL;
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static void
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vhost_app_opts_init(struct spdk_app_opts *opts)
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{
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spdk_app_opts_init(opts);
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opts->name = "vhost";
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opts->config_file = SPDK_VHOST_DEFAULT_CONFIG;
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opts->mem_size = SPDK_VHOST_DEFAULT_MEM_SIZE;
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}
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static void
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vhost_usage(void)
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{
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printf(" -f pidfile save pid to file under given path\n");
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printf(" -S dir directory where to create vhost sockets (default: pwd)\n");
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}
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static void
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save_pid(const char *pid_path)
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{
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FILE *pid_file;
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pid_file = fopen(pid_path, "w");
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if (pid_file == NULL) {
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fprintf(stderr, "Couldn't create pid file '%s': %s\n", pid_path, strerror(errno));
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exit(EXIT_FAILURE);
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}
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fprintf(pid_file, "%d\n", getpid());
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fclose(pid_file);
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}
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static void
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vhost_parse_arg(int ch, char *arg)
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{
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switch (ch) {
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case 'f':
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g_pid_path = arg;
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break;
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case 'S':
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g_socket_path = arg;
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break;
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}
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}
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int
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main(int argc, char *argv[])
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{
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struct spdk_app_opts opts = {};
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int rc;
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vhost_app_opts_init(&opts);
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spdk_app_parse_args(argc, argv, &opts, "f:S:", vhost_parse_arg, vhost_usage);
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if (g_pid_path) {
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save_pid(g_pid_path);
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}
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opts.shutdown_cb = spdk_vhost_shutdown_cb;
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/* Blocks until the application is exiting */
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rc = spdk_app_start(&opts, spdk_vhost_startup, (void *)g_socket_path, NULL);
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spdk_app_fini();
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return rc;
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}
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