tests/test-util-filemonitor.c

   1 /*
   2  * Tests for util/filemonitor-*.c
   3  *
   4  * Copyright 2018 Red Hat, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 #include "qemu/osdep.h"
  22 #include "qemu/main-loop.h"
  23 #include "qapi/error.h"
  24 #include "qemu/filemonitor.h"
  25
  26 #include <utime.h>
  27
  28 enum {
  29     QFILE_MONITOR_TEST_OP_ADD_WATCH,
  30     QFILE_MONITOR_TEST_OP_DEL_WATCH,
  31     QFILE_MONITOR_TEST_OP_EVENT,
  32     QFILE_MONITOR_TEST_OP_CREATE,
  33     QFILE_MONITOR_TEST_OP_APPEND,
  34     QFILE_MONITOR_TEST_OP_TRUNC,
  35     QFILE_MONITOR_TEST_OP_RENAME,
  36     QFILE_MONITOR_TEST_OP_TOUCH,
  37     QFILE_MONITOR_TEST_OP_UNLINK,
  38     QFILE_MONITOR_TEST_OP_MKDIR,
  39     QFILE_MONITOR_TEST_OP_RMDIR,
  40 };
  41
  42 typedef struct {
  43     int type;
  44     const char *filesrc;
  45     const char *filedst;
  46     int watchid;
  47     int eventid;
  48 } QFileMonitorTestOp;
  49
  50 typedef struct {
  51     int id;
  52     QFileMonitorEvent event;
  53     char *filename;
  54 } QFileMonitorTestRecord;
  55
  56
  57 typedef struct {
  58     QemuMutex lock;
  59     GList *records;
  60 } QFileMonitorTestData;
  61
  62 static QemuMutex evlock;
  63 static bool evstopping;
  64 static bool evrunning;
  65 static bool debug;
  66
  67 /*
  68  * Main function for a background thread that is
  69  * running the event loop during the test
  70  */
  71 static void *
  72 qemu_file_monitor_test_event_loop(void *opaque G_GNUC_UNUSED)
  73 {
  74     qemu_mutex_lock(&evlock);
  75
  76     while (!evstopping) {
  77         qemu_mutex_unlock(&evlock);
  78         main_loop_wait(true);
  79         qemu_mutex_lock(&evlock);
  80     }
  81
  82     evrunning = false;
  83     qemu_mutex_unlock(&evlock);
  84     return NULL;
  85 }
  86
  87
  88 /*
  89  * File monitor event handler which simply maintains
  90  * an ordered list of all events that it receives
  91  */
  92 static void
  93 qemu_file_monitor_test_handler(int id,
  94                                QFileMonitorEvent event,
  95                                const char *filename,
  96                                void *opaque)
  97 {
  98     QFileMonitorTestData *data = opaque;
  99     QFileMonitorTestRecord *rec = g_new0(QFileMonitorTestRecord, 1);
 100
 101     rec->id = id;
 102     rec->event = event;
 103     rec->filename = g_strdup(filename);
 104
 105     qemu_mutex_lock(&data->lock);
 106     data->records = g_list_append(data->records, rec);
 107     qemu_mutex_unlock(&data->lock);
 108 }
 109
 110
 111 static void
 112 qemu_file_monitor_test_record_free(QFileMonitorTestRecord *rec)
 113 {
 114     g_free(rec->filename);
 115     g_free(rec);
 116 }
 117
 118
 119 /*
 120  * Get the next event record that has been received by
 121  * the file monitor event handler. Since events are
 122  * emitted in the background thread running the event
 123  * loop, we can't assume there is a record available
 124  * immediately. Thus we will sleep for upto 5 seconds
 125  * to wait for the event to be queued for us.
 126  */
 127 static QFileMonitorTestRecord *
 128 qemu_file_monitor_test_next_record(QFileMonitorTestData *data)
 129 {
 130     GTimer *timer = g_timer_new();
 131     QFileMonitorTestRecord *record = NULL;
 132     GList *tmp;
 133
 134     qemu_mutex_lock(&data->lock);
 135     while (!data->records && g_timer_elapsed(timer, NULL) < 5) {
 136         qemu_mutex_unlock(&data->lock);
 137         usleep(10 * 1000);
 138         qemu_mutex_lock(&data->lock);
 139     }
 140     if (data->records) {
 141         record = data->records->data;
 142         tmp = data->records;
 143         data->records = g_list_remove_link(data->records, tmp);
 144         g_list_free(tmp);
 145     }
 146     qemu_mutex_unlock(&data->lock);
 147
 148     g_timer_destroy(timer);
 149     return record;
 150 }
 151
 152
 153 /*
 154  * Check whether the event record we retrieved matches
 155  * data we were expecting to see for the event
 156  */
 157 static bool
 158 qemu_file_monitor_test_expect(QFileMonitorTestData *data,
 159                               int id,
 160                               QFileMonitorEvent event,
 161                               const char *filename)
 162 {
 163     QFileMonitorTestRecord *rec;
 164     bool ret = false;
 165
 166     rec = qemu_file_monitor_test_next_record(data);
 167
 168     if (!rec) {
 169         g_printerr("Missing event watch id %d event %d file %s\n",
 170                    id, event, filename);
 171         return false;
 172     }
 173
 174     if (id != rec->id) {
 175         g_printerr("Expected watch id %d but got %d\n", id, rec->id);
 176         goto cleanup;
 177     }
 178
 179     if (event != rec->event) {
 180         g_printerr("Expected event %d but got %d\n", event, rec->event);
 181         goto cleanup;
 182     }
 183
 184     if (!g_str_equal(filename, rec->filename)) {
 185         g_printerr("Expected filename %s but got %s\n",
 186                    filename, rec->filename);
 187         goto cleanup;
 188     }
 189
 190     ret = true;
 191
 192  cleanup:
 193     qemu_file_monitor_test_record_free(rec);
 194     return ret;
 195 }
 196
 197
 198 static void
 199 test_file_monitor_events(void)
 200 {
 201     QFileMonitorTestOp ops[] = {
 202         { .type = QFILE_MONITOR_TEST_OP_ADD_WATCH,
 203           .filesrc = NULL, .watchid = 0 },
 204         { .type = QFILE_MONITOR_TEST_OP_ADD_WATCH,
 205           .filesrc = "one.txt", .watchid = 1 },
 206         { .type = QFILE_MONITOR_TEST_OP_ADD_WATCH,
 207           .filesrc = "two.txt", .watchid = 2 },
 208
 209
 210         { .type = QFILE_MONITOR_TEST_OP_CREATE,
 211           .filesrc = "one.txt", },
 212         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 213           .filesrc = "one.txt", .watchid = 0,
 214           .eventid = QFILE_MONITOR_EVENT_CREATED },
 215         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 216           .filesrc = "one.txt", .watchid = 1,
 217           .eventid = QFILE_MONITOR_EVENT_CREATED },
 218
 219
 220         { .type = QFILE_MONITOR_TEST_OP_CREATE,
 221           .filesrc = "two.txt", },
 222         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 223           .filesrc = "two.txt", .watchid = 0,
 224           .eventid = QFILE_MONITOR_EVENT_CREATED },
 225         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 226           .filesrc = "two.txt", .watchid = 2,
 227           .eventid = QFILE_MONITOR_EVENT_CREATED },
 228
 229
 230         { .type = QFILE_MONITOR_TEST_OP_CREATE,
 231           .filesrc = "three.txt", },
 232         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 233           .filesrc = "three.txt", .watchid = 0,
 234           .eventid = QFILE_MONITOR_EVENT_CREATED },
 235
 236
 237         { .type = QFILE_MONITOR_TEST_OP_UNLINK,
 238           .filesrc = "three.txt", },
 239         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 240           .filesrc = "three.txt", .watchid = 0,
 241           .eventid = QFILE_MONITOR_EVENT_DELETED },
 242
 243
 244         { .type = QFILE_MONITOR_TEST_OP_RENAME,
 245           .filesrc = "one.txt", .filedst = "two.txt" },
 246         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 247           .filesrc = "one.txt", .watchid = 0,
 248           .eventid = QFILE_MONITOR_EVENT_DELETED },
 249         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 250           .filesrc = "one.txt", .watchid = 1,
 251           .eventid = QFILE_MONITOR_EVENT_DELETED },
 252         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 253           .filesrc = "two.txt", .watchid = 0,
 254           .eventid = QFILE_MONITOR_EVENT_CREATED },
 255         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 256           .filesrc = "two.txt", .watchid = 2,
 257           .eventid = QFILE_MONITOR_EVENT_CREATED },
 258
 259
 260         { .type = QFILE_MONITOR_TEST_OP_APPEND,
 261           .filesrc = "two.txt", },
 262         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 263           .filesrc = "two.txt", .watchid = 0,
 264           .eventid = QFILE_MONITOR_EVENT_MODIFIED },
 265         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 266           .filesrc = "two.txt", .watchid = 2,
 267           .eventid = QFILE_MONITOR_EVENT_MODIFIED },
 268
 269
 270         { .type = QFILE_MONITOR_TEST_OP_TOUCH,
 271           .filesrc = "two.txt", },
 272         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 273           .filesrc = "two.txt", .watchid = 0,
 274           .eventid = QFILE_MONITOR_EVENT_ATTRIBUTES },
 275         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 276           .filesrc = "two.txt", .watchid = 2,
 277           .eventid = QFILE_MONITOR_EVENT_ATTRIBUTES },
 278
 279
 280         { .type = QFILE_MONITOR_TEST_OP_DEL_WATCH,
 281           .filesrc = "one.txt", .watchid = 1 },
 282         { .type = QFILE_MONITOR_TEST_OP_ADD_WATCH,
 283           .filesrc = "one.txt", .watchid = 3 },
 284         { .type = QFILE_MONITOR_TEST_OP_CREATE,
 285           .filesrc = "one.txt", },
 286         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 287           .filesrc = "one.txt", .watchid = 0,
 288           .eventid = QFILE_MONITOR_EVENT_CREATED },
 289         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 290           .filesrc = "one.txt", .watchid = 3,
 291           .eventid = QFILE_MONITOR_EVENT_CREATED },
 292
 293
 294         { .type = QFILE_MONITOR_TEST_OP_DEL_WATCH,
 295           .filesrc = "one.txt", .watchid = 3 },
 296         { .type = QFILE_MONITOR_TEST_OP_UNLINK,
 297           .filesrc = "one.txt", },
 298         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 299           .filesrc = "one.txt", .watchid = 0,
 300           .eventid = QFILE_MONITOR_EVENT_DELETED },
 301
 302
 303         { .type = QFILE_MONITOR_TEST_OP_MKDIR,
 304           .filesrc = "fish", },
 305         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 306           .filesrc = "fish", .watchid = 0,
 307           .eventid = QFILE_MONITOR_EVENT_CREATED },
 308
 309
 310         { .type = QFILE_MONITOR_TEST_OP_ADD_WATCH,
 311           .filesrc = "fish/", .watchid = 4 },
 312         { .type = QFILE_MONITOR_TEST_OP_ADD_WATCH,
 313           .filesrc = "fish/one.txt", .watchid = 5 },
 314         { .type = QFILE_MONITOR_TEST_OP_CREATE,
 315           .filesrc = "fish/one.txt", },
 316         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 317           .filesrc = "one.txt", .watchid = 4,
 318           .eventid = QFILE_MONITOR_EVENT_CREATED },
 319         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 320           .filesrc = "one.txt", .watchid = 5,
 321           .eventid = QFILE_MONITOR_EVENT_CREATED },
 322
 323
 324         { .type = QFILE_MONITOR_TEST_OP_DEL_WATCH,
 325           .filesrc = "fish/one.txt", .watchid = 5 },
 326         { .type = QFILE_MONITOR_TEST_OP_RENAME,
 327           .filesrc = "fish/one.txt", .filedst = "two.txt", },
 328         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 329           .filesrc = "one.txt", .watchid = 4,
 330           .eventid = QFILE_MONITOR_EVENT_DELETED },
 331         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 332           .filesrc = "two.txt", .watchid = 0,
 333           .eventid = QFILE_MONITOR_EVENT_CREATED },
 334         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 335           .filesrc = "two.txt", .watchid = 2,
 336           .eventid = QFILE_MONITOR_EVENT_CREATED },
 337
 338
 339         { .type = QFILE_MONITOR_TEST_OP_RMDIR,
 340           .filesrc = "fish", },
 341         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 342           .filesrc = "", .watchid = 4,
 343           .eventid = QFILE_MONITOR_EVENT_IGNORED },
 344         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 345           .filesrc = "fish", .watchid = 0,
 346           .eventid = QFILE_MONITOR_EVENT_DELETED },
 347         { .type = QFILE_MONITOR_TEST_OP_DEL_WATCH,
 348           .filesrc = "fish", .watchid = 4 },
 349
 350
 351         { .type = QFILE_MONITOR_TEST_OP_UNLINK,
 352           .filesrc = "two.txt", },
 353         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 354           .filesrc = "two.txt", .watchid = 0,
 355           .eventid = QFILE_MONITOR_EVENT_DELETED },
 356         { .type = QFILE_MONITOR_TEST_OP_EVENT,
 357           .filesrc = "two.txt", .watchid = 2,
 358           .eventid = QFILE_MONITOR_EVENT_DELETED },
 359
 360
 361         { .type = QFILE_MONITOR_TEST_OP_DEL_WATCH,
 362           .filesrc = "two.txt", .watchid = 2 },
 363         { .type = QFILE_MONITOR_TEST_OP_DEL_WATCH,
 364           .filesrc = NULL, .watchid = 0 },
 365     };
 366     Error *local_err = NULL;
 367     GError *gerr = NULL;
 368     QFileMonitor *mon = qemu_file_monitor_new(&local_err);
 369     QemuThread th;
 370     GTimer *timer;
 371     gchar *dir = NULL;
 372     int err = -1;
 373     gsize i;
 374     char *pathsrc = NULL;
 375     char *pathdst = NULL;
 376     QFileMonitorTestData data;
 377
 378     qemu_mutex_init(&data.lock);
 379     data.records = NULL;
 380
 381     /*
 382      * The file monitor needs the main loop running in
 383      * order to receive events from inotify. We must
 384      * thus spawn a background thread to run an event
 385      * loop impl, while this thread triggers the
 386      * actual file operations we're testing
 387      */
 388     evrunning = 1;
 389     evstopping = 0;
 390     qemu_thread_create(&th, "event-loop",
 391                        qemu_file_monitor_test_event_loop, NULL,
 392                        QEMU_THREAD_JOINABLE);
 393
 394     if (local_err) {
 395         g_printerr("File monitoring not available: %s",
 396                    error_get_pretty(local_err));
 397         error_free(local_err);
 398         return;
 399     }
 400
 401     dir = g_dir_make_tmp("test-util-filemonitor-XXXXXX",
 402                          &gerr);
 403     if (!dir) {
 404         g_printerr("Unable to create tmp dir %s",
 405                    gerr->message);
 406         g_error_free(gerr);
 407         abort();
 408     }
 409
 410     /*
 411      * Run through the operation sequence validating events
 412      * as we go
 413      */
 414     for (i = 0; i < G_N_ELEMENTS(ops); i++) {
 415         const QFileMonitorTestOp *op = &(ops[i]);
 416         int fd;
 417         int watchid;
 418         struct utimbuf ubuf;
 419         char *watchdir;
 420         const char *watchfile;
 421
 422         pathsrc = g_strdup_printf("%s/%s", dir, op->filesrc);
 423         if (op->filedst) {
 424             pathdst = g_strdup_printf("%s/%s", dir, op->filedst);
 425         }
 426
 427         switch (op->type) {
 428         case QFILE_MONITOR_TEST_OP_ADD_WATCH:
 429             if (debug) {
 430                 g_printerr("Add watch %s %s %d\n",
 431                            dir, op->filesrc, op->watchid);
 432             }
 433             if (op->filesrc && strchr(op->filesrc, '/')) {
 434                 watchdir = g_strdup_printf("%s/%s", dir, op->filesrc);
 435                 watchfile = strrchr(watchdir, '/');
 436                 *(char *)watchfile = '\0';
 437                 watchfile++;
 438                 if (*watchfile == '\0') {
 439                     watchfile = NULL;
 440                 }
 441             } else {
 442                 watchdir = g_strdup(dir);
 443                 watchfile = op->filesrc;
 444             }
 445             watchid =
 446                 qemu_file_monitor_add_watch(mon,
 447                                             watchdir,
 448                                             watchfile,
 449                                             qemu_file_monitor_test_handler,
 450                                             &data,
 451                                             &local_err);
 452             g_free(watchdir);
 453             if (watchid < 0) {
 454                 g_printerr("Unable to add watch %s",
 455                            error_get_pretty(local_err));
 456                 goto cleanup;
 457             }
 458             if (watchid != op->watchid) {
 459                 g_printerr("Unexpected watch ID %d, wanted %d\n",
 460                            watchid, op->watchid);
 461                 goto cleanup;
 462             }
 463             break;
 464         case QFILE_MONITOR_TEST_OP_DEL_WATCH:
 465             if (debug) {
 466                 g_printerr("Del watch %s %d\n", dir, op->watchid);
 467             }
 468             if (op->filesrc && strchr(op->filesrc, '/')) {
 469                 watchdir = g_strdup_printf("%s/%s", dir, op->filesrc);
 470                 watchfile = strrchr(watchdir, '/');
 471                 *(char *)watchfile = '\0';
 472             } else {
 473                 watchdir = g_strdup(dir);
 474             }
 475             qemu_file_monitor_remove_watch(mon,
 476                                            watchdir,
 477                                            op->watchid);
 478             g_free(watchdir);
 479             break;
 480         case QFILE_MONITOR_TEST_OP_EVENT:
 481             if (debug) {
 482                 g_printerr("Event id=%d event=%d file=%s\n",
 483                            op->watchid, op->eventid, op->filesrc);
 484             }
 485             if (!qemu_file_monitor_test_expect(
 486                     &data, op->watchid, op->eventid, op->filesrc))
 487                 goto cleanup;
 488             break;
 489         case QFILE_MONITOR_TEST_OP_CREATE:
 490             if (debug) {
 491                 g_printerr("Create %s\n", pathsrc);
 492             }
 493             fd = open(pathsrc, O_WRONLY | O_CREAT, 0700);
 494             if (fd < 0) {
 495                 g_printerr("Unable to create %s: %s",
 496                            pathsrc, strerror(errno));
 497                 goto cleanup;
 498             }
 499             close(fd);
 500             break;
 501
 502         case QFILE_MONITOR_TEST_OP_APPEND:
 503             if (debug) {
 504                 g_printerr("Append %s\n", pathsrc);
 505             }
 506             fd = open(pathsrc, O_WRONLY | O_APPEND, 0700);
 507             if (fd < 0) {
 508                 g_printerr("Unable to open %s: %s",
 509                            pathsrc, strerror(errno));
 510                 goto cleanup;
 511             }
 512
 513             if (write(fd, "Hello World", 10) != 10) {
 514                 g_printerr("Unable to write %s: %s",
 515                            pathsrc, strerror(errno));
 516                 close(fd);
 517                 goto cleanup;
 518             }
 519             close(fd);
 520             break;
 521
 522         case QFILE_MONITOR_TEST_OP_TRUNC:
 523             if (debug) {
 524                 g_printerr("Truncate %s\n", pathsrc);
 525             }
 526             if (truncate(pathsrc, 4) < 0) {
 527                 g_printerr("Unable to truncate %s: %s",
 528                            pathsrc, strerror(errno));
 529                 goto cleanup;
 530             }
 531             break;
 532
 533         case QFILE_MONITOR_TEST_OP_RENAME:
 534             if (debug) {
 535                 g_printerr("Rename %s -> %s\n", pathsrc, pathdst);
 536             }
 537             if (rename(pathsrc, pathdst) < 0) {
 538                 g_printerr("Unable to rename %s to %s: %s",
 539                            pathsrc, pathdst, strerror(errno));
 540                 goto cleanup;
 541             }
 542             break;
 543
 544         case QFILE_MONITOR_TEST_OP_UNLINK:
 545             if (debug) {
 546                 g_printerr("Unlink %s\n", pathsrc);
 547             }
 548             if (unlink(pathsrc) < 0) {
 549                 g_printerr("Unable to unlink %s: %s",
 550                            pathsrc, strerror(errno));
 551                 goto cleanup;
 552             }
 553             break;
 554
 555         case QFILE_MONITOR_TEST_OP_TOUCH:
 556             if (debug) {
 557                 g_printerr("Touch %s\n", pathsrc);
 558             }
 559             ubuf.actime = 1024;
 560             ubuf.modtime = 1025;
 561             if (utime(pathsrc, &ubuf) < 0) {
 562                 g_printerr("Unable to touch %s: %s",
 563                            pathsrc, strerror(errno));
 564                 goto cleanup;
 565             }
 566             break;
 567
 568         case QFILE_MONITOR_TEST_OP_MKDIR:
 569             if (debug) {
 570                 g_printerr("Mkdir %s\n", pathsrc);
 571             }
 572             if (mkdir(pathsrc, 0700) < 0) {
 573                 g_printerr("Unable to mkdir %s: %s",
 574                            pathsrc, strerror(errno));
 575                 goto cleanup;
 576             }
 577             break;
 578
 579         case QFILE_MONITOR_TEST_OP_RMDIR:
 580             if (debug) {
 581                 g_printerr("Rmdir %s\n", pathsrc);
 582             }
 583             if (rmdir(pathsrc) < 0) {
 584                 g_printerr("Unable to rmdir %s: %s",
 585                            pathsrc, strerror(errno));
 586                 goto cleanup;
 587             }
 588             break;
 589
 590         default:
 591             g_assert_not_reached();
 592         }
 593
 594         g_free(pathsrc);
 595         g_free(pathdst);
 596         pathsrc = pathdst = NULL;
 597     }
 598
 599     err = 0;
 600
 601  cleanup:
 602     g_free(pathsrc);
 603     g_free(pathdst);
 604
 605     qemu_mutex_lock(&evlock);
 606     evstopping = 1;
 607     timer = g_timer_new();
 608     while (evrunning && g_timer_elapsed(timer, NULL) < 5) {
 609         qemu_mutex_unlock(&evlock);
 610         usleep(10 * 1000);
 611         qemu_mutex_lock(&evlock);
 612     }
 613     qemu_mutex_unlock(&evlock);
 614
 615     if (g_timer_elapsed(timer, NULL) >= 5) {
 616         g_printerr("Event loop failed to quit after 5 seconds\n");
 617     }
 618     g_timer_destroy(timer);
 619
 620     qemu_file_monitor_free(mon);
 621     g_list_foreach(data.records,
 622                    (GFunc)qemu_file_monitor_test_record_free, NULL);
 623     g_list_free(data.records);
 624     qemu_mutex_destroy(&data.lock);
 625     if (dir) {
 626         for (i = 0; i < G_N_ELEMENTS(ops); i++) {
 627             const QFileMonitorTestOp *op = &(ops[i]);
 628             char *path = g_strdup_printf("%s/%s",
 629                                          dir, op->filesrc);
 630             if (op->type == QFILE_MONITOR_TEST_OP_MKDIR) {
 631                 rmdir(path);
 632                 g_free(path);
 633             } else {
 634                 unlink(path);
 635                 g_free(path);
 636                 if (op->filedst) {
 637                     path = g_strdup_printf("%s/%s",
 638                                            dir, op->filedst);
 639                     unlink(path);
 640                     g_free(path);
 641                 }
 642             }
 643         }
 644         if (rmdir(dir) < 0) {
 645             g_printerr("Failed to remove %s: %s\n",
 646                        dir, strerror(errno));
 647             abort();
 648         }
 649     }
 650     g_free(dir);
 651     g_assert(err == 0);
 652 }
 653
 654
 655 int main(int argc, char **argv)
 656 {
 657     g_test_init(&argc, &argv, NULL);
 658
 659     qemu_init_main_loop(&error_abort);
 660
 661     qemu_mutex_init(&evlock);
 662
 663     debug = getenv("FILEMONITOR_DEBUG") != NULL;
 664     g_test_add_func("/util/filemonitor", test_file_monitor_events);
 665
 666     return g_test_run();
 667 }