| 355 | } |
| 356 | |
| 357 | void |
| 358 | dbcontext::lock_tables_if() |
| 359 | { |
| 360 | if (lock_failed) { |
| 361 | return; |
| 362 | } |
| 363 | if (for_write_flag && !user_level_lock_locked) { |
| 364 | if (user_lock->get_lock()) { |
| 365 | user_level_lock_locked = true; |
| 366 | } else { |
| 367 | lock_failed = true; |
| 368 | return; |
| 369 | } |
| 370 | } |
| 371 | if (lock == 0) { |
| 372 | const size_t num_max = table_vec.size(); |
| 373 | TABLE **const tables = DENA_ALLOCA_ALLOCATE(TABLE *, num_max + 1); |
| 374 | size_t num_open = 0; |
| 375 | for (size_t i = 0; i < num_max; ++i) { |
| 376 | if (table_vec[i].refcount > 0) { |
| 377 | tables[num_open++] = table_vec[i].table; |
| 378 | } |
| 379 | table_vec[i].modified = false; |
| 380 | } |
| 381 | lock = thd->lock = mysql_lock_tables(thd, &tables[0], num_open, 0); |
| 382 | statistic_increment(lock_tables_count, &LOCK_status); |
| 383 | thd_proc_info(thd, &info_message_buf[0]); |
| 384 | DENA_VERBOSE(100, fprintf(stderr, "HNDSOCK lock tables %p %p %zu %zu\n", |
| 385 | thd, lock, num_max, num_open)); |
| 386 | if (lock == 0) { |
| 387 | lock_failed = true; |
| 388 | DENA_VERBOSE(10, fprintf(stderr, "HNDSOCK failed to lock tables %p\n", |
| 389 | thd)); |
| 390 | } |
| 391 | if (for_write_flag) { |
| 392 | thd->set_current_stmt_binlog_format_row(); |
| 393 | } |
| 394 | DENA_ALLOCA_FREE(tables); |
| 395 | } |
| 396 | DBG_LOCK(fprintf(stderr, "HNDSOCK tblnum=%d\n", (int)tblnum)); |
| 397 | } |
| 398 | |
| 399 | void |
| 400 | dbcontext::unlock_tables_if() |
nothing calls this directly
no test coverage detected