1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "spdk/stdinc.h" 35 36 #include "spdk/event.h" 37 38 #include "spdk/vhost.h" 39 40 static const char *g_pid_path = NULL; 41 42 static void 43 vhost_usage(void) 44 { 45 printf(" -f <path> save pid to file under given path\n"); 46 printf(" -S <path> directory where to create vhost sockets (default: pwd)\n"); 47 } 48 49 static void 50 save_pid(const char *pid_path) 51 { 52 FILE *pid_file; 53 54 pid_file = fopen(pid_path, "w"); 55 if (pid_file == NULL) { 56 fprintf(stderr, "Couldn't create pid file '%s': %s\n", pid_path, strerror(errno)); 57 exit(EXIT_FAILURE); 58 } 59 60 fprintf(pid_file, "%d\n", getpid()); 61 fclose(pid_file); 62 } 63 64 static int 65 vhost_parse_arg(int ch, char *arg) 66 { 67 switch (ch) { 68 case 'f': 69 g_pid_path = arg; 70 break; 71 case 'S': 72 spdk_vhost_set_socket_path(arg); 73 break; 74 default: 75 return -EINVAL; 76 } 77 return 0; 78 } 79 80 static void 81 vhost_started(void *arg1) 82 { 83 } 84 85 int 86 main(int argc, char *argv[]) 87 { 88 struct spdk_app_opts opts = {}; 89 int rc; 90 91 spdk_app_opts_init(&opts); 92 opts.name = "vhost"; 93 94 if ((rc = spdk_app_parse_args(argc, argv, &opts, "f:S:", NULL, 95 vhost_parse_arg, vhost_usage)) != 96 SPDK_APP_PARSE_ARGS_SUCCESS) { 97 exit(rc); 98 } 99 100 if (g_pid_path) { 101 save_pid(g_pid_path); 102 } 103 104 /* Blocks until the application is exiting */ 105 rc = spdk_app_start(&opts, vhost_started, NULL); 106 107 spdk_app_fini(); 108 109 return rc; 110 } 111