source3/torture/test_notify.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Scalability test for notifies
   4    Copyright (C) Volker Lendecke 2012
   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 3 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 program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "torture/proto.h"
  22 #include "libsmb/libsmb.h"
  23 #include "lib/util/tevent_ntstatus.h"
  24 #include "libcli/security/security.h"
  25 #include "lib/tevent_barrier.h"
  26
  27 extern int torture_nprocs, torture_numops;
  28
  29 struct wait_for_one_notify_state {
  30         struct tevent_context *ev;
  31         struct cli_state *cli;
  32         uint16_t dnum;
  33         uint32_t filter;
  34         bool recursive;
  35         unsigned *num_notifies;
  36 };
  37
  38 static void wait_for_one_notify_opened(struct tevent_req *subreq);
  39 static void wait_for_one_notify_chkpath_done(struct tevent_req *subreq);
  40 static void wait_for_one_notify_done(struct tevent_req *subreq);
  41 static void wait_for_one_notify_closed(struct tevent_req *subreq);
  42
  43 static struct tevent_req *wait_for_one_notify_send(TALLOC_CTX *mem_ctx,
  44                                                    struct tevent_context *ev,
  45                                                    struct cli_state *cli,
  46                                                    const char *path,
  47                                                    uint32_t filter,
  48                                                    bool recursive,
  49                                                    unsigned *num_notifies)
  50 {
  51         struct tevent_req *req, *subreq;
  52         struct wait_for_one_notify_state *state;
  53
  54         req = tevent_req_create(mem_ctx, &state,
  55                                 struct wait_for_one_notify_state);
  56         if (req == NULL) {
  57                 return NULL;
  58         }
  59         state->ev = ev;
  60         state->cli = cli;
  61         state->filter = filter;
  62         state->recursive = recursive;
  63         state->num_notifies = num_notifies;
  64
  65         subreq = cli_ntcreate_send(
  66                 state, state->ev, state->cli, path, 0,
  67                 MAXIMUM_ALLOWED_ACCESS,
  68                 0, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
  69                 FILE_OPEN, FILE_DIRECTORY_FILE, 0);
  70         if (tevent_req_nomem(subreq, req)) {
  71                 return tevent_req_post(req, ev);
  72         }
  73         tevent_req_set_callback(subreq, wait_for_one_notify_opened, req);
  74         return req;
  75 }
  76
  77 static void wait_for_one_notify_opened(struct tevent_req *subreq)
  78 {
  79         struct tevent_req *req = tevent_req_callback_data(
  80                 subreq, struct tevent_req);
  81         struct wait_for_one_notify_state *state = tevent_req_data(
  82                 req, struct wait_for_one_notify_state);
  83         NTSTATUS status;
  84
  85         status = cli_ntcreate_recv(subreq, &state->dnum);
  86         TALLOC_FREE(subreq);
  87         if (tevent_req_nterror(req, status)) {
  88                 return;
  89         }
  90         subreq = cli_notify_send(state, state->ev, state->cli, state->dnum,
  91                                  0xffff, state->filter, state->recursive);
  92         if (tevent_req_nomem(subreq, req)) {
  93                 return;
  94         }
  95         tevent_req_set_callback(subreq, wait_for_one_notify_done, req);
  96
  97         /*
  98          * To make sure the notify received at the server, we do another no-op
  99          * that is replied to.
 100          */
 101         subreq = cli_chkpath_send(state, state->ev, state->cli, "\\");
 102         if (tevent_req_nomem(subreq, req)) {
 103                 return;
 104         }
 105         tevent_req_set_callback(subreq, wait_for_one_notify_chkpath_done, req);
 106 }
 107
 108 static void wait_for_one_notify_chkpath_done(struct tevent_req *subreq)
 109 {
 110         struct tevent_req *req = tevent_req_callback_data(
 111                 subreq, struct tevent_req);
 112         struct wait_for_one_notify_state *state = tevent_req_data(
 113                 req, struct wait_for_one_notify_state);
 114         NTSTATUS status;
 115
 116         status = cli_chkpath_recv(subreq);
 117         TALLOC_FREE(subreq);
 118         if (tevent_req_nterror(req, status)) {
 119                 return;
 120         }
 121         *state->num_notifies += 1;
 122 }
 123
 124 static void wait_for_one_notify_done(struct tevent_req *subreq)
 125 {
 126         struct tevent_req *req = tevent_req_callback_data(
 127                 subreq, struct tevent_req);
 128         struct wait_for_one_notify_state *state = tevent_req_data(
 129                 req, struct wait_for_one_notify_state);
 130         uint32_t num_changes;
 131         struct notify_change *changes;
 132         NTSTATUS status;
 133
 134         status = cli_notify_recv(subreq, state, &num_changes, &changes);
 135         TALLOC_FREE(subreq);
 136         if (tevent_req_nterror(req, status)) {
 137                 return;
 138         }
 139         subreq = cli_close_send(state, state->ev, state->cli, state->dnum);
 140         if (tevent_req_nomem(subreq, req)) {
 141                 return;
 142         }
 143         tevent_req_set_callback(subreq, wait_for_one_notify_closed, req);
 144 }
 145
 146 static void wait_for_one_notify_closed(struct tevent_req *subreq)
 147 {
 148         struct tevent_req *req = tevent_req_callback_data(
 149                 subreq, struct tevent_req);
 150         struct wait_for_one_notify_state *state = tevent_req_data(
 151                 req, struct wait_for_one_notify_state);
 152         NTSTATUS status;
 153
 154         status = cli_close_recv(subreq);
 155         TALLOC_FREE(subreq);
 156         if (tevent_req_nterror(req, status)) {
 157                 return;
 158         }
 159         *state->num_notifies -= 1;
 160         tevent_req_done(req);
 161 }
 162
 163 static NTSTATUS wait_for_one_notify_recv(struct tevent_req *req)
 164 {
 165         return tevent_req_simple_recv_ntstatus(req);
 166 }
 167
 168 static void notify_bench2_done(struct tevent_req *req);
 169
 170 bool run_notify_bench2(int dummy)
 171 {
 172         struct cli_state *cli;
 173         struct cli_state **clis;
 174         struct tevent_context *ev;
 175         unsigned num_notifies = 0;
 176         NTSTATUS status;
 177         int i;
 178
 179         if (!torture_open_connection(&cli, 0)) {
 180                 return false;
 181         }
 182
 183         printf("starting notify bench 2 test\n");
 184
 185         cli_rmdir(cli, "\\notify.dir\\subdir");
 186         cli_rmdir(cli, "\\notify.dir");
 187
 188         status = cli_mkdir(cli, "\\notify.dir");
 189         if (!NT_STATUS_IS_OK(status)) {
 190                 printf("mkdir failed : %s\n", nt_errstr(status));
 191                 return false;
 192         }
 193
 194         clis = talloc_array(talloc_tos(), struct cli_state *, torture_nprocs);
 195         if (clis == NULL) {
 196                 printf("talloc failed\n");
 197                 return false;
 198         }
 199
 200         ev = samba_tevent_context_init(talloc_tos());
 201         if (ev == NULL) {
 202                 printf("tevent_context_create failed\n");
 203                 return false;
 204         }
 205
 206         for (i=0; i<torture_nprocs; i++) {
 207                 int j;
 208                 if (!torture_open_connection(&clis[i], i)) {
 209                         return false;
 210                 }
 211
 212                 for (j=0; j<torture_numops; j++) {
 213                         struct tevent_req *req;
 214                         req = wait_for_one_notify_send(
 215                                 talloc_tos(), ev, clis[i], "\\notify.dir",
 216                                 FILE_NOTIFY_CHANGE_ALL, true,
 217                                 &num_notifies);
 218                         if (req == NULL) {
 219                                 printf("wait_for_one_notify_send failed\n");
 220                                 return false;
 221                         }
 222                         tevent_req_set_callback(req, notify_bench2_done, NULL);
 223                 }
 224         }
 225
 226         while (num_notifies < torture_nprocs * torture_numops) {
 227                 int ret;
 228                 ret = tevent_loop_once(ev);
 229                 if (ret != 0) {
 230                         printf("tevent_loop_once failed: %s\n",
 231                                strerror(errno));
 232                         return false;
 233                 }
 234         }
 235
 236         cli_mkdir(cli, "\\notify.dir\\subdir");
 237
 238         while (num_notifies > 0) {
 239                 int ret;
 240                 ret = tevent_loop_once(ev);
 241                 if (ret != 0) {
 242                         printf("tevent_loop_once failed: %s\n",
 243                                strerror(errno));
 244                         return false;
 245                 }
 246         }
 247
 248         return true;
 249 }
 250
 251 static void notify_bench2_done(struct tevent_req *req)
 252 {
 253         NTSTATUS status;
 254
 255         status = wait_for_one_notify_recv(req);
 256         TALLOC_FREE(req);
 257         if (!NT_STATUS_IS_OK(status)) {
 258                 printf("wait_for_one_notify returned %s\n",
 259                        nt_errstr(status));
 260         }
 261 }
 262
 263 /*
 264  * This test creates a subdirectory. It then waits on a barrier before the
 265  * notify is sent. Then it creates the notify. It then waits for another
 266  * barrier, so that all of the notifies have gone through. It then creates
 267  * another subdirectory, which will trigger notifications to be sent. When the
 268  * notifies have been received, it waits once more before everything is
 269  * cleaned up.
 270  */
 271
 272 struct notify_bench3_state {
 273         struct tevent_context *ev;
 274         struct cli_state *cli;
 275         const char *dir;
 276         uint16_t dnum;
 277         const char *subdir_path;
 278         uint16_t subdir_dnum;
 279         int wait_timeout;
 280         struct tevent_barrier *small;
 281         struct tevent_barrier *large;
 282 };
 283
 284 static void notify_bench3_mkdir1_done(struct tevent_req *subreq);
 285 static void notify_bench3_before_notify(struct tevent_req *subreq);
 286 static void notify_bench3_chkpath_done(struct tevent_req *subreq);
 287 static void notify_bench3_before_mkdir2(struct tevent_req *subreq);
 288 static void notify_bench3_notify_done(struct tevent_req *subreq);
 289 static void notify_bench3_notifies_done(struct tevent_req *subreq);
 290 static void notify_bench3_mksubdir_done(struct tevent_req *subreq);
 291 static void notify_bench3_before_close_subdir(struct tevent_req *subreq);
 292 static void notify_bench3_close_subdir_done(struct tevent_req *subreq);
 293 static void notify_bench3_deleted_subdir(struct tevent_req *subreq);
 294 static void notify_bench3_deleted_subdirs(struct tevent_req *subreq);
 295 static void notify_bench3_del_on_close_set(struct tevent_req *subreq);
 296 static void notify_bench3_closed(struct tevent_req *subreq);
 297
 298 static struct tevent_req *notify_bench3_send(
 299         TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
 300         const char *dir, const char *subdir_path,
 301         struct tevent_barrier *small, struct tevent_barrier *large)
 302 {
 303         struct tevent_req *req, *subreq;
 304         struct notify_bench3_state *state;
 305
 306         req = tevent_req_create(mem_ctx, &state, struct notify_bench3_state);
 307         if (req == NULL) {
 308                 return NULL;
 309         }
 310         state->ev = ev;
 311         state->cli = cli;
 312         state->dir = dir;
 313         state->subdir_path = subdir_path;
 314         state->small = small;
 315         state->large = large;
 316
 317         subreq = cli_ntcreate_send(
 318                 state, state->ev, state->cli, state->dir, 0,
 319                 MAXIMUM_ALLOWED_ACCESS, 0,
 320                 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
 321                 FILE_OPEN_IF, FILE_DIRECTORY_FILE, 0);
 322         if (tevent_req_nomem(subreq, req)) {
 323                 return tevent_req_post(req, ev);
 324         }
 325         tevent_req_set_callback(subreq, notify_bench3_mkdir1_done, req);
 326         return req;
 327 }
 328
 329 static void notify_bench3_mkdir1_done(struct tevent_req *subreq)
 330 {
 331         struct tevent_req *req = tevent_req_callback_data(
 332                 subreq, struct tevent_req);
 333         struct notify_bench3_state *state = tevent_req_data(
 334                 req, struct notify_bench3_state);
 335         NTSTATUS status;
 336
 337         status = cli_ntcreate_recv(subreq, &state->dnum);
 338         TALLOC_FREE(subreq);
 339         if (tevent_req_nterror(req, status)) {
 340                 return;
 341         }
 342         subreq = tevent_barrier_wait_send(state, state->ev, state->small);
 343         if (tevent_req_nomem(subreq, req)) {
 344                 return;
 345         }
 346         tevent_req_set_callback(subreq, notify_bench3_before_notify, req);
 347 }
 348
 349 static void notify_bench3_before_notify(struct tevent_req *subreq)
 350 {
 351         struct tevent_req *req = tevent_req_callback_data(
 352                 subreq, struct tevent_req);
 353         struct notify_bench3_state *state = tevent_req_data(
 354                 req, struct notify_bench3_state);
 355         int ret;
 356
 357         ret = tevent_barrier_wait_recv(subreq);
 358         TALLOC_FREE(subreq);
 359         if (ret != 0) {
 360                 tevent_req_nterror(req, map_nt_error_from_unix(ret));
 361                 return;
 362         }
 363         subreq = cli_notify_send(state, state->ev, state->cli, state->dnum,
 364                                  0xffff, FILE_NOTIFY_CHANGE_ALL, true);
 365         if (tevent_req_nomem(subreq, req)) {
 366                 return;
 367         }
 368         tevent_req_set_callback(subreq, notify_bench3_notify_done, req);
 369
 370         /*
 371          * To make sure the notify received at the server, we do another no-op
 372          * that is replied to.
 373          */
 374         subreq = cli_chkpath_send(state, state->ev, state->cli, "\\");
 375         if (tevent_req_nomem(subreq, req)) {
 376                 return;
 377         }
 378         tevent_req_set_callback(subreq, notify_bench3_chkpath_done, req);
 379 }
 380
 381 static void notify_bench3_notify_done(struct tevent_req *subreq)
 382 {
 383         struct tevent_req *req = tevent_req_callback_data(
 384                 subreq, struct tevent_req);
 385         struct notify_bench3_state *state = tevent_req_data(
 386                 req, struct notify_bench3_state);
 387         uint32_t num_changes;
 388         struct notify_change *changes;
 389         NTSTATUS status;
 390
 391         status = cli_notify_recv(subreq, state, &num_changes, &changes);
 392         TALLOC_FREE(subreq);
 393         if (tevent_req_nterror(req, status)) {
 394                 return;
 395         }
 396         subreq = tevent_barrier_wait_send(state, state->ev, state->large);
 397         if (tevent_req_nomem(subreq, req)) {
 398                 return;
 399         }
 400         tevent_req_set_callback(subreq, notify_bench3_notifies_done, req);
 401 }
 402
 403 static void notify_bench3_notifies_done(struct tevent_req *subreq)
 404 {
 405         struct tevent_req *req = tevent_req_callback_data(
 406                 subreq, struct tevent_req);
 407         int ret;
 408
 409         ret = tevent_barrier_wait_recv(subreq);
 410         TALLOC_FREE(subreq);
 411         if (ret != 0) {
 412                 tevent_req_nterror(req, map_nt_error_from_unix(ret));
 413                 return;
 414         }
 415 }
 416
 417 static void notify_bench3_chkpath_done(struct tevent_req *subreq)
 418 {
 419         struct tevent_req *req = tevent_req_callback_data(
 420                 subreq, struct tevent_req);
 421         struct notify_bench3_state *state = tevent_req_data(
 422                 req, struct notify_bench3_state);
 423         NTSTATUS status;
 424
 425         status = cli_chkpath_recv(subreq);
 426         TALLOC_FREE(subreq);
 427         if (tevent_req_nterror(req, status)) {
 428                 return;
 429         }
 430         if (state->subdir_path == NULL) {
 431                 return;
 432         }
 433         subreq = tevent_barrier_wait_send(state, state->ev, state->small);
 434         if (tevent_req_nomem(subreq, req)) {
 435                 return;
 436         }
 437         tevent_req_set_callback(subreq, notify_bench3_before_mkdir2, req);
 438 }
 439
 440 static void notify_bench3_before_mkdir2(struct tevent_req *subreq)
 441 {
 442         struct tevent_req *req = tevent_req_callback_data(
 443                 subreq, struct tevent_req);
 444         struct notify_bench3_state *state = tevent_req_data(
 445                 req, struct notify_bench3_state);
 446         int ret;
 447
 448         ret = tevent_barrier_wait_recv(subreq);
 449         TALLOC_FREE(subreq);
 450         if (ret != 0) {
 451                 tevent_req_nterror(req, map_nt_error_from_unix(ret));
 452                 return;
 453         }
 454         subreq =  cli_ntcreate_send(
 455                 state, state->ev, state->cli, state->subdir_path, 0,
 456                 MAXIMUM_ALLOWED_ACCESS, 0,
 457                 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
 458                 FILE_CREATE,
 459                 FILE_DIRECTORY_FILE, 0);
 460         if (tevent_req_nomem(subreq, req)) {
 461                 return;
 462         }
 463         tevent_req_set_callback(subreq, notify_bench3_mksubdir_done, req);
 464 }
 465
 466 static void notify_bench3_mksubdir_done(struct tevent_req *subreq)
 467 {
 468         struct tevent_req *req = tevent_req_callback_data(
 469                 subreq, struct tevent_req);
 470         struct notify_bench3_state *state = tevent_req_data(
 471                 req, struct notify_bench3_state);
 472         NTSTATUS status;
 473
 474         status = cli_ntcreate_recv(subreq, &state->subdir_dnum);
 475         TALLOC_FREE(subreq);
 476         if (tevent_req_nterror(req, status)) {
 477                 return;
 478         }
 479         subreq = tevent_barrier_wait_send(state, state->ev, state->large);
 480         if (tevent_req_nomem(subreq, req)) {
 481                 return;
 482         }
 483         tevent_req_set_callback(subreq, notify_bench3_before_close_subdir,
 484                                 req);
 485 }
 486
 487 static void notify_bench3_before_close_subdir(struct tevent_req *subreq)
 488 {
 489         struct tevent_req *req = tevent_req_callback_data(
 490                 subreq, struct tevent_req);
 491         struct notify_bench3_state *state = tevent_req_data(
 492                 req, struct notify_bench3_state);
 493         int ret;
 494
 495         ret = tevent_barrier_wait_recv(subreq);
 496         TALLOC_FREE(subreq);
 497         if (ret != 0) {
 498                 tevent_req_nterror(req, map_nt_error_from_unix(ret));
 499                 return;
 500         }
 501         subreq = cli_close_send(state, state->ev, state->cli,
 502                                 state->subdir_dnum);
 503         if (tevent_req_nomem(subreq, req)) {
 504                 return;
 505         }
 506         tevent_req_set_callback(subreq, notify_bench3_close_subdir_done, req);
 507 }
 508
 509 static void notify_bench3_close_subdir_done(struct tevent_req *subreq)
 510 {
 511         struct tevent_req *req = tevent_req_callback_data(
 512                 subreq, struct tevent_req);
 513         struct notify_bench3_state *state = tevent_req_data(
 514                 req, struct notify_bench3_state);
 515         NTSTATUS status;
 516
 517         status = cli_close_recv(subreq);
 518         TALLOC_FREE(subreq);
 519         if (tevent_req_nterror(req, status)) {
 520                 return;
 521         }
 522         subreq = cli_rmdir_send(state, state->ev, state->cli,
 523                                 state->subdir_path);
 524         if (tevent_req_nomem(subreq, req)) {
 525                 return;
 526         }
 527         tevent_req_set_callback(subreq, notify_bench3_deleted_subdir, req);
 528 }
 529
 530 static void notify_bench3_deleted_subdir(struct tevent_req *subreq)
 531 {
 532         struct tevent_req *req = tevent_req_callback_data(
 533                 subreq, struct tevent_req);
 534         struct notify_bench3_state *state = tevent_req_data(
 535                 req, struct notify_bench3_state);
 536         NTSTATUS status;
 537
 538         status = cli_rmdir_recv(subreq);
 539         TALLOC_FREE(subreq);
 540         if (tevent_req_nterror(req, status)) {
 541                 return;
 542         }
 543         subreq = tevent_barrier_wait_send(state, state->ev, state->small);
 544         if (tevent_req_nomem(subreq, req)) {
 545                 return;
 546         }
 547         tevent_req_set_callback(subreq, notify_bench3_deleted_subdirs, req);
 548 }
 549
 550 static void notify_bench3_deleted_subdirs(struct tevent_req *subreq)
 551 {
 552         struct tevent_req *req = tevent_req_callback_data(
 553                 subreq, struct tevent_req);
 554         struct notify_bench3_state *state = tevent_req_data(
 555                 req, struct notify_bench3_state);
 556         int ret;
 557
 558         ret = tevent_barrier_wait_recv(subreq);
 559         TALLOC_FREE(subreq);
 560         if (ret != 0) {
 561                 tevent_req_nterror(req, map_nt_error_from_unix(ret));
 562                 return;
 563         }
 564         subreq = cli_nt_delete_on_close_send(state, state->ev, state->cli,
 565                                              state->dnum, true);
 566         if (tevent_req_nomem(subreq, req)) {
 567                 return;
 568         }
 569         tevent_req_set_callback(subreq, notify_bench3_del_on_close_set, req);
 570 }
 571
 572 static void notify_bench3_del_on_close_set(struct tevent_req *subreq)
 573 {
 574         struct tevent_req *req = tevent_req_callback_data(
 575                 subreq, struct tevent_req);
 576         struct notify_bench3_state *state = tevent_req_data(
 577                 req, struct notify_bench3_state);
 578         NTSTATUS status;
 579
 580         status = cli_nt_delete_on_close_recv(subreq);
 581         TALLOC_FREE(subreq);
 582         subreq = cli_close_send(state, state->ev, state->cli, state->dnum);
 583         if (tevent_req_nomem(subreq, req)) {
 584                 return;
 585         }
 586         tevent_req_set_callback(subreq, notify_bench3_closed, req);
 587 }
 588
 589 static void notify_bench3_closed(struct tevent_req *subreq)
 590 {
 591         struct tevent_req *req = tevent_req_callback_data(
 592                 subreq, struct tevent_req);
 593         NTSTATUS status;
 594
 595         status = cli_close_recv(subreq);
 596         TALLOC_FREE(subreq);
 597         if (tevent_req_nterror(req, status)) {
 598                 return;
 599         }
 600         tevent_req_done(req);
 601 }
 602
 603 static NTSTATUS notify_bench3_recv(struct tevent_req *req)
 604 {
 605         return tevent_req_simple_recv_ntstatus(req);
 606 }
 607
 608 static void notify_bench3_done(struct tevent_req *req)
 609 {
 610         unsigned *num_done = (unsigned *)tevent_req_callback_data_void(req);
 611         NTSTATUS status;
 612
 613         status = notify_bench3_recv(req);
 614         TALLOC_FREE(req);
 615         if (!NT_STATUS_IS_OK(status)) {
 616                 d_printf("notify_bench3 returned %s\n", nt_errstr(status));
 617         }
 618         *num_done += 1;
 619 }
 620
 621 static void notify_bench3_barrier_cb(void *private_data)
 622 {
 623         struct timeval *ts = (struct timeval *)private_data;
 624         struct timeval now;
 625
 626         GetTimeOfDay(&now);
 627         printf("barrier triggered: %f\n", timeval_elapsed2(ts, &now));
 628         GetTimeOfDay(ts);
 629 }
 630
 631 bool run_notify_bench3(int dummy)
 632 {
 633         struct cli_state **clis;
 634         struct tevent_context *ev;
 635         struct tevent_barrier *small;
 636         struct tevent_barrier *large;
 637         unsigned i, j;
 638         unsigned num_done = 0;
 639         struct timeval ts, now;
 640
 641         clis = talloc_array(talloc_tos(), struct cli_state *, torture_nprocs);
 642         if (clis == NULL) {
 643                 printf("talloc failed\n");
 644                 return false;
 645         }
 646
 647         GetTimeOfDay(&ts);
 648
 649         small = tevent_barrier_init(
 650                 talloc_tos(), torture_nprocs * torture_numops,
 651                 notify_bench3_barrier_cb, &ts);
 652         if (small == NULL) {
 653                 return false;
 654         }
 655
 656         large = tevent_barrier_init(
 657                 talloc_tos(), 2 * torture_nprocs * torture_numops,
 658                 notify_bench3_barrier_cb, &ts);
 659         if (large == NULL) {
 660                 return false;
 661         }
 662
 663         ev = samba_tevent_context_init(talloc_tos());
 664         if (ev == NULL) {
 665                 printf("tevent_context_create failed\n");
 666                 return false;
 667         }
 668
 669         for (i=0; i<torture_nprocs; i++) {
 670                 if (!torture_open_connection(&clis[i], i)) {
 671                         return false;
 672                 }
 673         }
 674
 675         for (i=0; i<torture_nprocs; i++) {
 676                 for (j=0; j<torture_numops; j++) {
 677                         int idx = i * torture_numops + j;
 678                         struct tevent_req *req;
 679                         char *dirname, *subdirname;
 680
 681                         dirname = talloc_asprintf(
 682                                 talloc_tos(), "\\dir%.8d", idx);
 683                         if (dirname == NULL) {
 684                                 return false;
 685                         }
 686                         subdirname = talloc_asprintf(
 687                                 talloc_tos(), "\\dir%.8d\\subdir",
 688                                 (idx + torture_numops + 1) %
 689                                 (torture_nprocs * torture_numops));
 690                         if (subdirname == NULL) {
 691                                 return false;
 692                         }
 693
 694                         req = notify_bench3_send(
 695                                 talloc_tos(), ev, clis[i], dirname,
 696                                 subdirname, small, large);
 697                         if (req == NULL) {
 698                                 return false;
 699                         }
 700                         tevent_req_set_callback(req, notify_bench3_done,
 701                                                 &num_done);
 702                 }
 703         }
 704
 705         while (num_done < torture_nprocs * torture_numops) {
 706                 int ret;
 707                 ret = tevent_loop_once(ev);
 708                 if (ret != 0) {
 709                         printf("tevent_loop_once failed: %s\n",
 710                                strerror(errno));
 711                         return false;
 712                 }
 713         }
 714
 715         GetTimeOfDay(&now);
 716         printf("turndow: %f\n", timeval_elapsed2(&ts, &now));
 717         TALLOC_FREE(small);
 718         TALLOC_FREE(large);
 719         return true;
 720 }