| 1 | /* |
| 2 | * Copyright (C) 2013 - Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License, version 2 only, |
| 6 | * as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | */ |
| 17 | |
| 18 | #define _GNU_SOURCE |
| 19 | #include <inttypes.h> |
| 20 | #include <popt.h> |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | #include <assert.h> |
| 25 | |
| 26 | #include "../command.h" |
| 27 | #include <lttng/save.h> |
| 28 | |
| 29 | static char *opt_output_path; |
| 30 | static int opt_force; |
| 31 | static int opt_save_all; |
| 32 | |
| 33 | enum { |
| 34 | OPT_HELP = 1, |
| 35 | OPT_ALL, |
| 36 | OPT_FORCE, |
| 37 | }; |
| 38 | |
| 39 | static struct poptOption save_opts[] = { |
| 40 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ |
| 41 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, |
| 42 | {"all", 'a', POPT_ARG_NONE, 0, OPT_ALL, 0, 0}, |
| 43 | {"output-path", 'o', POPT_ARG_STRING, &opt_output_path, 0, 0, 0}, |
| 44 | {"force", 'f', POPT_ARG_NONE, 0, OPT_FORCE, 0, 0}, |
| 45 | {0, 0, 0, 0, 0, 0, 0} |
| 46 | }; |
| 47 | |
| 48 | /* |
| 49 | * usage |
| 50 | */ |
| 51 | static void usage(FILE *ofp) |
| 52 | { |
| 53 | fprintf(ofp, "usage: lttng save [OPTIONS] [SESSION]\n"); |
| 54 | fprintf(ofp, "\n"); |
| 55 | fprintf(ofp, "Options:\n"); |
| 56 | fprintf(ofp, " -h, --help Show this help\n"); |
| 57 | fprintf(ofp, " -a, --all Save all sessions (default)\n"); |
| 58 | fprintf(ofp, " -o, --output-path Output path of the session configuration(s)\n"); |
| 59 | fprintf(ofp, " -f, --force Overwrite existing session configuration(s)\n"); |
| 60 | } |
| 61 | |
| 62 | /* |
| 63 | * The 'save <options>' first level command |
| 64 | */ |
| 65 | int cmd_save(int argc, const char **argv) |
| 66 | { |
| 67 | int ret = CMD_SUCCESS; |
| 68 | int opt; |
| 69 | const char *session_name = NULL; |
| 70 | poptContext pc; |
| 71 | struct lttng_save_session_attr *attr; |
| 72 | |
| 73 | pc = poptGetContext(NULL, argc, argv, save_opts, 0); |
| 74 | poptReadDefaultConfig(pc, 0); |
| 75 | |
| 76 | while ((opt = poptGetNextOpt(pc)) != -1) { |
| 77 | switch (opt) { |
| 78 | case OPT_HELP: |
| 79 | usage(stdout); |
| 80 | goto end; |
| 81 | case OPT_ALL: |
| 82 | opt_save_all = 1; |
| 83 | break; |
| 84 | case OPT_FORCE: |
| 85 | opt_force = 1; |
| 86 | break; |
| 87 | default: |
| 88 | usage(stderr); |
| 89 | ret = CMD_UNDEFINED; |
| 90 | goto end; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | if (!opt_save_all) { |
| 95 | session_name = poptGetArg(pc); |
| 96 | if (session_name) { |
| 97 | DBG2("Session name: %s", session_name); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | attr = lttng_save_session_attr_create(); |
| 102 | if (!attr) { |
| 103 | ret = CMD_FATAL; |
| 104 | goto end_destroy; |
| 105 | } |
| 106 | |
| 107 | if (lttng_save_session_attr_set_session_name(attr, session_name)) { |
| 108 | ret = CMD_ERROR; |
| 109 | goto end_destroy; |
| 110 | } |
| 111 | |
| 112 | if (lttng_save_session_attr_set_overwrite(attr, opt_force)) { |
| 113 | ret = CMD_ERROR; |
| 114 | goto end_destroy; |
| 115 | } |
| 116 | |
| 117 | if (lttng_save_session_attr_set_output_url(attr, opt_output_path)) { |
| 118 | ret = CMD_ERROR; |
| 119 | goto end_destroy; |
| 120 | } |
| 121 | |
| 122 | ret = lttng_save_session(attr); |
| 123 | if (ret < 0) { |
| 124 | ERR("%s", lttng_strerror(ret)); |
| 125 | } else { |
| 126 | /* Inform the user of what just happened on success. */ |
| 127 | if (session_name && opt_output_path) { |
| 128 | MSG("Session %s saved successfully in %s.", session_name, |
| 129 | opt_output_path); |
| 130 | } else if (session_name && !opt_output_path) { |
| 131 | MSG("Session %s saved successfully.", session_name); |
| 132 | } else if (!session_name && opt_output_path) { |
| 133 | MSG("All sessions have been saved successfully in %s.", |
| 134 | opt_output_path); |
| 135 | } else { |
| 136 | MSG("All sessions have been saved successfully."); |
| 137 | } |
| 138 | } |
| 139 | end_destroy: |
| 140 | lttng_save_session_attr_destroy(attr); |
| 141 | end: |
| 142 | poptFreeContext(pc); |
| 143 | return ret; |
| 144 | } |