| 1 | /* |
| 2 | * Copyright (C) 2011 Mathieu Bain <mathieu.bain@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 Version 2 as |
| 6 | * 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 | #include <stdlib.h> |
| 19 | #include <unistd.h> |
| 20 | #include <sys/types.h> |
| 21 | #include <sys/stat.h> |
| 22 | #include <string.h> |
| 23 | #include <babeltrace/babeltrace.h> |
| 24 | |
| 25 | #include "lttngtoptypes.h" |
| 26 | #include "common.h" |
| 27 | #include "iostreamtop.h" |
| 28 | |
| 29 | void add_file(struct processtop *proc, struct files *file, int fd) |
| 30 | { |
| 31 | struct files *tmp_file; |
| 32 | int size; |
| 33 | |
| 34 | size = proc->process_files_table->len; |
| 35 | |
| 36 | if (size <= fd) { |
| 37 | g_ptr_array_set_size(proc->process_files_table, fd); |
| 38 | g_ptr_array_add(proc->process_files_table, file); |
| 39 | } else { |
| 40 | tmp_file = g_ptr_array_index(proc->process_files_table, fd); |
| 41 | if (tmp_file == NULL) |
| 42 | g_ptr_array_index(proc->process_files_table, fd) = file; |
| 43 | else { |
| 44 | if (strcmp(tmp_file->name, file->name) != 0) { |
| 45 | size = proc->process_files_table->len; |
| 46 | g_ptr_array_set_size(proc->process_files_table, |
| 47 | size+1); |
| 48 | g_ptr_array_index(proc->process_files_table, |
| 49 | size) = tmp_file; |
| 50 | g_ptr_array_index(proc->process_files_table, |
| 51 | fd) = file; |
| 52 | } else |
| 53 | tmp_file->flag = __NR_open; |
| 54 | } |
| 55 | } |
| 56 | file->fd = fd; |
| 57 | file->flag = __NR_open; |
| 58 | } |
| 59 | |
| 60 | /* TODO */ |
| 61 | /* To be done */ |
| 62 | void edit_file(struct processtop *proc, struct files *file, int fd) |
| 63 | { |
| 64 | int size = proc->process_files_table->len; |
| 65 | struct files *tmpfile; |
| 66 | |
| 67 | if (size <= fd) |
| 68 | return; |
| 69 | else { |
| 70 | tmpfile = g_ptr_array_index(proc->process_files_table, fd); |
| 71 | tmpfile->name = strdup(file->name); |
| 72 | free(file); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | void insert_file(struct processtop *proc, int fd) |
| 77 | { |
| 78 | struct files *tmp; |
| 79 | |
| 80 | if (fd >= proc->process_files_table->len) { |
| 81 | tmp = g_new0(struct files, 1); |
| 82 | tmp->name = "Unknown"; |
| 83 | tmp->read = 0; |
| 84 | tmp->write = 0; |
| 85 | tmp->fd = fd; |
| 86 | add_file(proc, tmp, fd); |
| 87 | } else { |
| 88 | |
| 89 | tmp = g_ptr_array_index(proc->process_files_table, fd); |
| 90 | if (tmp == NULL) { |
| 91 | tmp = g_new0(struct files, 1); |
| 92 | tmp->name = "Unknown"; |
| 93 | tmp->read = 0; |
| 94 | tmp->write = 0; |
| 95 | tmp->fd = fd; |
| 96 | add_file(proc, tmp, fd); |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | void close_file(struct processtop *proc, int fd) |
| 102 | { |
| 103 | struct files *file; |
| 104 | |
| 105 | |
| 106 | file = get_file(proc, fd); |
| 107 | if (file != NULL) |
| 108 | file->flag = __NR_close; |
| 109 | } |
| 110 | |
| 111 | struct files *get_file(struct processtop *proc, int fd) |
| 112 | { |
| 113 | int len; |
| 114 | struct files *tmp = NULL; |
| 115 | |
| 116 | len = proc->process_files_table->len; |
| 117 | |
| 118 | /* |
| 119 | * It is possible that a file was open before taking the trace |
| 120 | * and its fd could be greater than all of the others fd |
| 121 | * used by the process |
| 122 | */ |
| 123 | if (fd < len && fd >= 0) |
| 124 | tmp = g_ptr_array_index(proc->process_files_table, fd); |
| 125 | |
| 126 | return tmp; |
| 127 | } |
| 128 | |
| 129 | void show_table(GPtrArray *tab) |
| 130 | { |
| 131 | int i; |
| 132 | struct files *file; |
| 133 | |
| 134 | for (i = 0 ; i < tab->len; i++) { |
| 135 | file = g_ptr_array_index(tab, i); |
| 136 | if (file == NULL) |
| 137 | fprintf(stderr, "NULL, "); |
| 138 | else |
| 139 | fprintf(stderr, "%s, ", file->name); |
| 140 | } |
| 141 | fprintf(stderr, "]\n\n"); |
| 142 | } |
| 143 | |
| 144 | void show_history(struct file_history *history) |
| 145 | { |
| 146 | struct file_history *tmp = history; |
| 147 | |
| 148 | while (tmp != NULL) { |
| 149 | fprintf(stderr, "fd = %d, name = %s\n", tmp->file->fd, |
| 150 | tmp->file->name); |
| 151 | tmp = tmp->next; |
| 152 | } |
| 153 | |
| 154 | } |
| 155 | |
| 156 | int update_iostream_ret(struct lttngtop *ctx, int tid, char *comm, |
| 157 | unsigned long timestamp, uint64_t cpu_id, int ret) |
| 158 | { |
| 159 | struct processtop *tmp; |
| 160 | struct files *tmpfile; |
| 161 | int err = 0; |
| 162 | |
| 163 | tmp = get_proc(ctx, tid, comm, timestamp); |
| 164 | |
| 165 | if (tmp->syscall_info != NULL) { |
| 166 | if (tmp->syscall_info->type == __NR_read |
| 167 | && ret > 0) { |
| 168 | tmp->totalfileread += ret; |
| 169 | tmp->fileread += ret; |
| 170 | tmpfile = get_file(tmp, tmp->syscall_info->fd); |
| 171 | tmpfile->read += ret; |
| 172 | } else if (tmp->syscall_info->type == __NR_write |
| 173 | && ret > 0) { |
| 174 | tmp->totalfilewrite += ret; |
| 175 | tmp->filewrite += ret; |
| 176 | tmpfile = get_file(tmp, tmp->syscall_info->fd); |
| 177 | tmpfile->write += ret; |
| 178 | } else if (tmp->syscall_info->type == __NR_open |
| 179 | && ret > 0) { |
| 180 | tmpfile = tmp->files_history->file; |
| 181 | add_file(tmp, tmpfile, ret); |
| 182 | tmpfile->fd = ret; |
| 183 | } else { |
| 184 | err = -1; |
| 185 | } |
| 186 | g_free(tmp->syscall_info); |
| 187 | tmp->syscall_info = NULL; |
| 188 | } |
| 189 | return err; |
| 190 | } |
| 191 | |
| 192 | struct syscalls *create_syscall_info(unsigned int type, uint64_t cpu_id, |
| 193 | unsigned int tid, int fd) |
| 194 | { |
| 195 | struct syscalls *syscall_info; |
| 196 | |
| 197 | syscall_info = g_new0(struct syscalls, 1); |
| 198 | syscall_info->type = type; |
| 199 | syscall_info->cpu_id = cpu_id; |
| 200 | syscall_info->tid = tid; |
| 201 | syscall_info->fd = fd; |
| 202 | |
| 203 | return syscall_info; |
| 204 | } |
| 205 | |
| 206 | struct file_history *create_file(struct file_history *history, char *file_name) |
| 207 | { |
| 208 | struct files *new_file; |
| 209 | struct file_history *new_history; |
| 210 | |
| 211 | new_file = g_new0(struct files, 1); |
| 212 | new_history = g_new0(struct file_history, 1); |
| 213 | new_file->name = strdup(file_name); |
| 214 | new_file->read = 0; |
| 215 | new_file->write = 0; |
| 216 | new_history->file = new_file; |
| 217 | new_history->next = history; |
| 218 | |
| 219 | return new_history; |
| 220 | } |
| 221 | |
| 222 | enum bt_cb_ret handle_exit_syscall(struct bt_ctf_event *call_data, |
| 223 | void *private_data) |
| 224 | { |
| 225 | const struct definition *scope; |
| 226 | unsigned long timestamp; |
| 227 | char *comm; |
| 228 | uint64_t ret, tid; |
| 229 | uint64_t cpu_id; |
| 230 | |
| 231 | timestamp = bt_ctf_get_timestamp(call_data); |
| 232 | if (timestamp == -1ULL) |
| 233 | goto error; |
| 234 | |
| 235 | comm = get_context_comm(call_data); |
| 236 | tid = get_context_tid(call_data); |
| 237 | |
| 238 | scope = bt_ctf_get_top_level_scope(call_data, |
| 239 | BT_EVENT_FIELDS); |
| 240 | ret = bt_ctf_get_int64(bt_ctf_get_field(call_data, |
| 241 | scope, "_ret")); |
| 242 | if (bt_ctf_field_get_error()) { |
| 243 | fprintf(stderr, "Missing ret context info\n"); |
| 244 | goto error; |
| 245 | } |
| 246 | |
| 247 | cpu_id = get_cpu_id(call_data); |
| 248 | |
| 249 | /* |
| 250 | * if we encounter an exit_syscall and |
| 251 | * it is not for a syscall read or write |
| 252 | * we just abort the execution of this callback |
| 253 | */ |
| 254 | if ((update_iostream_ret(<tngtop, tid, comm, timestamp, cpu_id, ret)) < 0) |
| 255 | return BT_CB_ERROR_CONTINUE; |
| 256 | |
| 257 | return BT_CB_OK; |
| 258 | |
| 259 | error: |
| 260 | return BT_CB_ERROR_STOP; |
| 261 | } |
| 262 | |
| 263 | |
| 264 | enum bt_cb_ret handle_sys_write(struct bt_ctf_event *call_data, |
| 265 | void *private_data) |
| 266 | { |
| 267 | const struct definition *scope; |
| 268 | struct processtop *tmp; |
| 269 | unsigned long timestamp; |
| 270 | uint64_t cpu_id; |
| 271 | char *comm; |
| 272 | int64_t tid; |
| 273 | int fd; |
| 274 | |
| 275 | timestamp = bt_ctf_get_timestamp(call_data); |
| 276 | if (timestamp == -1ULL) |
| 277 | goto error; |
| 278 | |
| 279 | comm = get_context_comm(call_data); |
| 280 | tid = get_context_tid(call_data); |
| 281 | cpu_id = get_cpu_id(call_data); |
| 282 | |
| 283 | scope = bt_ctf_get_top_level_scope(call_data, |
| 284 | BT_EVENT_FIELDS); |
| 285 | fd = bt_ctf_get_uint64(bt_ctf_get_field(call_data, |
| 286 | scope, "_fd")); |
| 287 | if (bt_ctf_field_get_error()) { |
| 288 | fprintf(stderr, "Missing fd context info\n"); |
| 289 | goto error; |
| 290 | } |
| 291 | |
| 292 | tmp = get_proc(<tngtop, tid, comm, timestamp); |
| 293 | tmp->syscall_info = create_syscall_info(__NR_write, cpu_id, tid, fd); |
| 294 | |
| 295 | insert_file(tmp, fd); |
| 296 | |
| 297 | return BT_CB_OK; |
| 298 | |
| 299 | error: |
| 300 | return BT_CB_ERROR_STOP; |
| 301 | } |
| 302 | |
| 303 | enum bt_cb_ret handle_sys_read(struct bt_ctf_event *call_data, |
| 304 | void *private_data) |
| 305 | { |
| 306 | struct processtop *tmp; |
| 307 | const struct definition *scope; |
| 308 | unsigned long timestamp; |
| 309 | uint64_t cpu_id; |
| 310 | char *comm; |
| 311 | int64_t tid; |
| 312 | int fd; |
| 313 | |
| 314 | timestamp = bt_ctf_get_timestamp(call_data); |
| 315 | if (timestamp == -1ULL) |
| 316 | goto error; |
| 317 | |
| 318 | comm = get_context_comm(call_data); |
| 319 | tid = get_context_tid(call_data); |
| 320 | cpu_id = get_cpu_id(call_data); |
| 321 | |
| 322 | scope = bt_ctf_get_top_level_scope(call_data, |
| 323 | BT_EVENT_FIELDS); |
| 324 | fd = bt_ctf_get_uint64(bt_ctf_get_field(call_data, |
| 325 | scope, "_fd")); |
| 326 | if (bt_ctf_field_get_error()) { |
| 327 | fprintf(stderr, "Missing fd context info\n"); |
| 328 | goto error; |
| 329 | } |
| 330 | |
| 331 | tmp = get_proc(<tngtop, tid, comm, timestamp); |
| 332 | tmp->syscall_info = create_syscall_info(__NR_read, cpu_id, tid, fd); |
| 333 | |
| 334 | insert_file(tmp, fd); |
| 335 | |
| 336 | return BT_CB_OK; |
| 337 | |
| 338 | error: |
| 339 | return BT_CB_ERROR_STOP; |
| 340 | } |
| 341 | |
| 342 | |
| 343 | enum bt_cb_ret handle_sys_open(struct bt_ctf_event *call_data, |
| 344 | void *private_data) |
| 345 | { |
| 346 | |
| 347 | struct processtop *tmp; |
| 348 | const struct definition *scope; |
| 349 | unsigned long timestamp; |
| 350 | uint64_t cpu_id; |
| 351 | char *comm; |
| 352 | int64_t tid; |
| 353 | char *file; |
| 354 | |
| 355 | timestamp = bt_ctf_get_timestamp(call_data); |
| 356 | if (timestamp == -1ULL) |
| 357 | goto error; |
| 358 | |
| 359 | comm = get_context_comm(call_data); |
| 360 | tid = get_context_tid(call_data); |
| 361 | cpu_id = get_cpu_id(call_data); |
| 362 | |
| 363 | scope = bt_ctf_get_top_level_scope(call_data, |
| 364 | BT_EVENT_FIELDS); |
| 365 | file = bt_ctf_get_string(bt_ctf_get_field(call_data, |
| 366 | scope, "_filename")); |
| 367 | if (bt_ctf_field_get_error()) { |
| 368 | fprintf(stderr, "Missing file name context info\n"); |
| 369 | goto error; |
| 370 | } |
| 371 | |
| 372 | tmp = get_proc(<tngtop, tid, comm, timestamp); |
| 373 | tmp->syscall_info = create_syscall_info(__NR_open, cpu_id, tid, -1); |
| 374 | |
| 375 | tmp->files_history = create_file(tmp->files_history, file); |
| 376 | |
| 377 | return BT_CB_OK; |
| 378 | |
| 379 | error: |
| 380 | return BT_CB_ERROR_STOP; |
| 381 | } |
| 382 | |
| 383 | |
| 384 | enum bt_cb_ret handle_sys_close(struct bt_ctf_event *call_data, |
| 385 | void *private_data) |
| 386 | { |
| 387 | const struct definition *scope; |
| 388 | unsigned long timestamp; |
| 389 | int64_t tid; |
| 390 | struct processtop *tmp; |
| 391 | char *comm; |
| 392 | int fd; |
| 393 | |
| 394 | timestamp = bt_ctf_get_timestamp(call_data); |
| 395 | if (timestamp == -1ULL) |
| 396 | goto error; |
| 397 | |
| 398 | comm = get_context_comm(call_data); |
| 399 | tid = get_context_tid(call_data); |
| 400 | |
| 401 | scope = bt_ctf_get_top_level_scope(call_data, |
| 402 | BT_EVENT_FIELDS); |
| 403 | fd = bt_ctf_get_uint64(bt_ctf_get_field(call_data, |
| 404 | scope, "_fd")); |
| 405 | if (bt_ctf_field_get_error()) { |
| 406 | fprintf(stderr, "Missing fd context info\n"); |
| 407 | goto error; |
| 408 | } |
| 409 | |
| 410 | tmp = get_proc(<tngtop, tid, comm, timestamp); |
| 411 | |
| 412 | close_file(tmp, fd); |
| 413 | |
| 414 | return BT_CB_OK; |
| 415 | |
| 416 | error: |
| 417 | return BT_CB_ERROR_STOP; |
| 418 | } |
| 419 | /* |
| 420 | enum bt_cb_ret handle_statedump_file_descriptor(struct bt_ctf_event *call_data, |
| 421 | void *private_data) |
| 422 | { |
| 423 | struct definition *scope; |
| 424 | struct files *file; |
| 425 | unsigned long timestamp; |
| 426 | int64_t tid; |
| 427 | struct processtop *tmp; |
| 428 | char *comm, *file_name; |
| 429 | int fd; |
| 430 | |
| 431 | timestamp = bt_ctf_get_timestamp(call_data); |
| 432 | if (timestamp == -1ULL) |
| 433 | goto error; |
| 434 | |
| 435 | comm = get_context_comm(call_data); |
| 436 | |
| 437 | scope = bt_ctf_get_top_level_scope(call_data, |
| 438 | BT_EVENT_FIELDS); |
| 439 | tid = bt_ctf_get_uint64(bt_ctf_get_field(call_data, |
| 440 | scope, "_tid")); |
| 441 | if (bt_ctf_field_get_error()) { |
| 442 | fprintf(stderr, "Missing tid context info\n"); |
| 443 | goto error; |
| 444 | } |
| 445 | |
| 446 | scope = bt_ctf_get_top_level_scope(call_data, |
| 447 | BT_EVENT_FIELDS); |
| 448 | fd = bt_ctf_get_uint64(bt_ctf_get_field(call_data, |
| 449 | scope, "_fd")); |
| 450 | if (bt_ctf_field_get_error()) { |
| 451 | fprintf(stderr, "Missing fd context info\n"); |
| 452 | goto error; |
| 453 | } |
| 454 | |
| 455 | scope = bt_ctf_get_top_level_scope(call_data, |
| 456 | BT_EVENT_FIELDS); |
| 457 | file_name = bt_ctf_get_string(bt_ctf_get_field(call_data, |
| 458 | scope, "_filename")); |
| 459 | if (bt_ctf_field_get_error()) { |
| 460 | fprintf(stderr, "Missing file name context info\n"); |
| 461 | goto error; |
| 462 | } |
| 463 | |
| 464 | file = g_new0(struct files, 1); |
| 465 | file->name = strdup(file_name); |
| 466 | file->fd = fd; |
| 467 | tmp = find_process_tid(<tngtop, tid, comm); |
| 468 | edit_file(tmp, file, fd); |
| 469 | |
| 470 | fprintf(stderr, "%lu %s\n", tmp->tid, file_name); |
| 471 | |
| 472 | return BT_CB_OK; |
| 473 | |
| 474 | error: |
| 475 | return BT_CB_ERROR_STOP; |
| 476 | } |
| 477 | */ |