| 1 | /* |
| 2 | * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca> |
| 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 as published by |
| 6 | * as published by the Free Software Foundation; only version 2 |
| 7 | * of the License. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along |
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | */ |
| 18 | |
| 19 | #define _GNU_SOURCE |
| 20 | #include <assert.h> |
| 21 | #include <errno.h> |
| 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | #include <unistd.h> |
| 26 | #include <time.h> |
| 27 | |
| 28 | #include <lttng/lttng.h> |
| 29 | #include <bin/lttng-sessiond/lttng-ust-abi.h> |
| 30 | #include <common/defaults.h> |
| 31 | #include <bin/lttng-sessiond/trace-ust.h> |
| 32 | |
| 33 | #include "utils.h" |
| 34 | |
| 35 | /* This path will NEVER be created in this test */ |
| 36 | #define PATH1 "/tmp/.test-junk-lttng" |
| 37 | |
| 38 | #define RANDOM_STRING_LEN 11 |
| 39 | |
| 40 | /* For lttngerr.h */ |
| 41 | int lttng_opt_quiet = 1; |
| 42 | int lttng_opt_verbose; |
| 43 | |
| 44 | static const char alphanum[] = |
| 45 | "0123456789" |
| 46 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| 47 | "abcdefghijklmnopqrstuvwxyz"; |
| 48 | static char random_string[RANDOM_STRING_LEN]; |
| 49 | |
| 50 | static struct ltt_ust_session *usess; |
| 51 | static struct lttng_domain dom; |
| 52 | |
| 53 | /* |
| 54 | * Return random string of 10 characters. |
| 55 | * Not thread-safe. |
| 56 | */ |
| 57 | static char *get_random_string(void) |
| 58 | { |
| 59 | int i; |
| 60 | |
| 61 | for (i = 0; i < RANDOM_STRING_LEN - 1; i++) { |
| 62 | random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)]; |
| 63 | } |
| 64 | |
| 65 | random_string[RANDOM_STRING_LEN - 1] = '\0'; |
| 66 | |
| 67 | return random_string; |
| 68 | } |
| 69 | |
| 70 | static void create_one_ust_session(void) |
| 71 | { |
| 72 | printf("Create UST session: "); |
| 73 | |
| 74 | dom.type = LTTNG_DOMAIN_UST; |
| 75 | |
| 76 | usess = trace_ust_create_session(PATH1, 42, &dom); |
| 77 | assert(usess != NULL); |
| 78 | PRINT_OK(); |
| 79 | |
| 80 | printf("Validating UST session: "); |
| 81 | assert(usess->id == 42); |
| 82 | assert(usess->start_trace == 0); |
| 83 | assert(usess->domain_global.channels != NULL); |
| 84 | assert(usess->domain_pid != NULL); |
| 85 | assert(usess->domain_exec != NULL); |
| 86 | assert(usess->uid == 0); |
| 87 | assert(usess->gid == 0); |
| 88 | PRINT_OK(); |
| 89 | |
| 90 | trace_ust_destroy_session(usess); |
| 91 | } |
| 92 | |
| 93 | static void create_ust_metadata(void) |
| 94 | { |
| 95 | struct ltt_ust_metadata *metadata; |
| 96 | |
| 97 | assert(usess != NULL); |
| 98 | |
| 99 | printf("Create UST metadata: "); |
| 100 | metadata = trace_ust_create_metadata(PATH1); |
| 101 | assert(metadata != NULL); |
| 102 | PRINT_OK(); |
| 103 | |
| 104 | printf("Validating UST session metadata: "); |
| 105 | assert(metadata->handle == -1); |
| 106 | assert(strlen(metadata->pathname)); |
| 107 | assert(metadata->attr.overwrite |
| 108 | == DEFAULT_CHANNEL_OVERWRITE); |
| 109 | assert(metadata->attr.subbuf_size |
| 110 | == DEFAULT_METADATA_SUBBUF_SIZE); |
| 111 | assert(metadata->attr.num_subbuf |
| 112 | == DEFAULT_METADATA_SUBBUF_NUM); |
| 113 | assert(metadata->attr.switch_timer_interval |
| 114 | == DEFAULT_CHANNEL_SWITCH_TIMER); |
| 115 | assert(metadata->attr.read_timer_interval |
| 116 | == DEFAULT_CHANNEL_READ_TIMER); |
| 117 | assert(metadata->attr.output == LTTNG_UST_MMAP); |
| 118 | PRINT_OK(); |
| 119 | |
| 120 | trace_ust_destroy_metadata(metadata); |
| 121 | } |
| 122 | |
| 123 | static void create_ust_channel(void) |
| 124 | { |
| 125 | struct ltt_ust_channel *uchan; |
| 126 | struct lttng_channel attr; |
| 127 | |
| 128 | memset(&attr, 0, sizeof(attr)); |
| 129 | |
| 130 | strncpy(attr.name, "channel0", 8); |
| 131 | |
| 132 | printf("Creating UST channel: "); |
| 133 | uchan = trace_ust_create_channel(&attr, PATH1); |
| 134 | assert(uchan != NULL); |
| 135 | PRINT_OK(); |
| 136 | |
| 137 | printf("Validating UST channel: "); |
| 138 | assert(uchan->enabled == 0); |
| 139 | assert(strcmp(PATH1, uchan->pathname) == 0); |
| 140 | assert(strncmp(uchan->name, "channel0", 8) == 0); |
| 141 | assert(uchan->name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0'); |
| 142 | assert(uchan->ctx != NULL); |
| 143 | assert(uchan->events != NULL); |
| 144 | assert(uchan->attr.overwrite == attr.attr.overwrite); |
| 145 | PRINT_OK(); |
| 146 | |
| 147 | trace_ust_destroy_channel(uchan); |
| 148 | } |
| 149 | |
| 150 | static void create_ust_event(void) |
| 151 | { |
| 152 | struct ltt_ust_event *event; |
| 153 | struct lttng_event ev; |
| 154 | |
| 155 | memset(&ev, 0, sizeof(ev)); |
| 156 | strncpy(ev.name, get_random_string(), LTTNG_SYMBOL_NAME_LEN); |
| 157 | ev.type = LTTNG_EVENT_TRACEPOINT; |
| 158 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
| 159 | |
| 160 | printf("Creating UST event: "); |
| 161 | event = trace_ust_create_event(&ev); |
| 162 | assert(event != NULL); |
| 163 | PRINT_OK(); |
| 164 | |
| 165 | printf("Validating UST event: "); |
| 166 | assert(event->enabled == 0); |
| 167 | assert(event->ctx != NULL); |
| 168 | assert(event->attr.instrumentation == LTTNG_UST_TRACEPOINT); |
| 169 | assert(strcmp(event->attr.name, ev.name) == 0); |
| 170 | assert(event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0'); |
| 171 | PRINT_OK(); |
| 172 | |
| 173 | trace_ust_destroy_event(event); |
| 174 | } |
| 175 | |
| 176 | static void create_ust_context(void) |
| 177 | { |
| 178 | struct lttng_event_context ectx; |
| 179 | struct ltt_ust_context *uctx; |
| 180 | |
| 181 | ectx.ctx = LTTNG_EVENT_CONTEXT_VTID; |
| 182 | |
| 183 | printf("Creating UST context: "); |
| 184 | uctx = trace_ust_create_context(&ectx); |
| 185 | assert(uctx != NULL); |
| 186 | PRINT_OK(); |
| 187 | |
| 188 | printf("Validating UST context: "); |
| 189 | assert((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID); |
| 190 | PRINT_OK(); |
| 191 | } |
| 192 | |
| 193 | int main(int argc, char **argv) |
| 194 | { |
| 195 | printf("\nTesting UST data structures:\n-----------\n"); |
| 196 | |
| 197 | create_one_ust_session(); |
| 198 | create_ust_metadata(); |
| 199 | create_ust_channel(); |
| 200 | create_ust_event(); |
| 201 | create_ust_context(); |
| 202 | |
| 203 | /* Success */ |
| 204 | return 0; |
| 205 | } |