tools/tests/xnu_quick_test/kqueue_tests.c

   1 /*
   2  *  tests.c
   3  *  xnu_quick_test
   4  *
   5  *  Created by Jerry Cottingham on 3/25/05.
   6  *  Copyright 2005 Apple Computer Inc. All rights reserved.
   7  *
   8  */
   9
  10 #include "tests.h"
  11 #include <pthread.h>
  12 #include <assert.h>
  13 #include <sys/event.h>          /* for kqueue tests */
  14 #include <sys/sysctl.h>         /* for determining hw */
  15 #include <mach/mach.h>
  16 #include <AvailabilityMacros.h> /* for determination of Mac OS X version (tiger, leopard, etc.) */
  17 #include <libkern/OSByteOrder.h> /* for OSSwap32() */
  18
  19 extern char             g_target_path[ PATH_MAX ];
  20 extern int              g_skip_setuid_tests;
  21
  22 int msg_count = 14;
  23 int last_msg_seen = 0;
  24 pthread_cond_t my_cond = PTHREAD_COND_INITIALIZER;
  25 pthread_mutex_t my_mutex = PTHREAD_MUTEX_INITIALIZER;
  26
  27
  28 static kern_return_t
  29 kmsg_send(mach_port_t remote_port, int index)
  30 {
  31         int msgh_id = 1000 + index;
  32         kern_return_t my_kr;
  33         mach_msg_header_t * my_kmsg = NULL;
  34         mach_msg_size_t size = sizeof(mach_msg_header_t) + sizeof(int)*index;
  35
  36         my_kr = vm_allocate( mach_task_self(),
  37                              (vm_address_t *)&my_kmsg,
  38                              size,
  39                              VM_MAKE_TAG(VM_MEMORY_MACH_MSG) | TRUE );
  40         if (my_kr != KERN_SUCCESS)
  41                 return my_kr;
  42         my_kmsg->msgh_bits =
  43                 MACH_MSGH_BITS_SET(MACH_MSG_TYPE_COPY_SEND, 0, 0, 0);
  44         my_kmsg->msgh_size = size;
  45         my_kmsg->msgh_remote_port = remote_port;
  46         my_kmsg->msgh_local_port = MACH_PORT_NULL;
  47         my_kmsg->msgh_voucher_port = MACH_PORT_NULL;
  48         my_kmsg->msgh_id = msgh_id;
  49         my_kr = mach_msg( my_kmsg,
  50                           MACH_SEND_MSG | MACH_MSG_OPTION_NONE,
  51                           size,
  52                           0, /* receive size */
  53                           MACH_PORT_NULL,
  54                           MACH_MSG_TIMEOUT_NONE,
  55                           MACH_PORT_NULL );
  56         vm_deallocate( mach_task_self(), (vm_address_t)my_kmsg, size );
  57         return my_kr;
  58 }
  59
  60 static kern_return_t
  61 kmsg_recv(mach_port_t portset, mach_port_t port, int * msgh_id_return)
  62 {
  63         kern_return_t my_kr;
  64         mach_msg_header_t * my_kmsg = NULL;
  65
  66         my_kr = vm_allocate( mach_task_self(),
  67                              (vm_address_t *)&my_kmsg,
  68                              PAGE_SIZE,
  69                              VM_MAKE_TAG(VM_MEMORY_MACH_MSG) | TRUE );
  70         if (my_kr != KERN_SUCCESS)
  71                 return my_kr;
  72         my_kr = mach_msg( my_kmsg,
  73                           MACH_RCV_MSG | MACH_MSG_OPTION_NONE,
  74                           0, /* send size */
  75                           PAGE_SIZE, /* receive size */
  76                           port,
  77                           MACH_MSG_TIMEOUT_NONE,
  78                           MACH_PORT_NULL );
  79         if ( my_kr == KERN_SUCCESS &&
  80              msgh_id_return != NULL )
  81                 *msgh_id_return = my_kmsg->msgh_id;
  82         vm_deallocate( mach_task_self(), (vm_address_t)my_kmsg, PAGE_SIZE );
  83         return my_kr;
  84 }
  85
  86 static void *
  87 kmsg_consumer_thread(void * arg)
  88 {
  89         int             my_kqueue = *(int *)arg;
  90         int             my_err;
  91         kern_return_t   my_kr;
  92         struct kevent   my_keventv[3];
  93         int             msgid;
  94
  95         EV_SET( &my_keventv[0], 0, 0, 0, 0, 0, 0 );
  96         while ( !(my_keventv[0].filter == EVFILT_USER &&
  97                   my_keventv[0].ident == 0)) {
  98                 /* keep getting events */
  99                 my_err = kevent( my_kqueue, NULL, 0, my_keventv, 1, NULL );
 100                 if ( my_err == -1 ) {
 101                         printf( "kevent call from consumer thread failed with error %d - \"%s\" \n", errno, strerror( errno) );
 102                         return (void *)-1;
 103                 }
 104                 if ( my_err == 0 ) {
 105                         printf( "kevent call from consumer thread did not return any events when it should have \n" );
 106                         return (void *)-1;
 107                 }
 108                 if ( my_keventv[0].filter == EVFILT_MACHPORT ) {
 109                         if ( my_keventv[0].data == 0 ) {
 110                                 printf( "kevent call to get machport event returned 0 msg_size \n" );
 111                                 return (void *)-1;
 112                         }
 113                         my_kr = kmsg_recv( my_keventv[0].ident, my_keventv[0].data, &msgid );
 114                         if ( my_kr != KERN_SUCCESS ) {
 115                                 printf( "kmsg_recv failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
 116                                 return (void *)-1;
 117                         }
 118                         my_keventv[0].flags = EV_ENABLE;
 119                         my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
 120                         if ( my_err == -1 ) {
 121                                 printf( "kevent call to re-enable machport events failed with error %d - \"%s\" \n", errno, strerror( errno) );
 122                                 return (void *)-1;
 123                         }
 124                         if (msgid == 1000 + msg_count) {
 125                                 pthread_mutex_lock(&my_mutex);
 126                                 last_msg_seen = 1;
 127                                 pthread_cond_signal(&my_cond);
 128                                 pthread_mutex_unlock(&my_mutex);
 129                         }
 130                 }
 131         }
 132         return (void *)0;
 133 }
 134
 135 /*  **************************************************************************************************************
 136  *      Test kevent, kqueue system calls.
 137  *  **************************************************************************************************************
 138  */
 139 int kqueue_tests( void * the_argp )
 140 {
 141         int                             my_err, my_status;
 142         void                            *my_pthread_join_status;
 143         int                             my_kqueue = -1;
 144         int                             my_kqueue64 = -1;
 145         int                             my_fd = -1;
 146         char *                  my_pathp = NULL;
 147     pid_t                       my_pid, my_wait_pid;
 148         size_t                  my_count, my_index;
 149         int                             my_sockets[ 2 ] = {-1, -1};
 150         struct kevent   my_keventv[3];
 151         struct kevent64_s       my_kevent64;
 152         struct timespec my_timeout;
 153         char                    my_buffer[ 16 ];
 154         kern_return_t kr;
 155
 156         kr = vm_allocate((vm_map_t) mach_task_self(), (vm_address_t*)&my_pathp, PATH_MAX, VM_FLAGS_ANYWHERE);
 157         if(kr != KERN_SUCCESS){
 158                 printf( "vm_allocate failed with error %d - \"%s\" \n", errno, strerror( errno) );
 159                 goto test_failed_exit;
 160         }
 161
 162         *my_pathp = 0x00;
 163         strcat( my_pathp, &g_target_path[0] );
 164         strcat( my_pathp, "/" );
 165
 166         /* create a test file */
 167         my_err = create_random_name( my_pathp, 1 );
 168         if ( my_err != 0 ) {
 169                 goto test_failed_exit;
 170         }
 171
 172         my_fd = open( my_pathp, O_RDWR, 0 );
 173         if ( my_fd == -1 ) {
 174                 printf( "open call failed with error %d - \"%s\" \n", errno, strerror( errno) );
 175                 goto test_failed_exit;
 176         }
 177
 178         my_err = socketpair( AF_UNIX, SOCK_STREAM, 0, &my_sockets[0] );
 179         if ( my_err == -1 ) {
 180                 printf( "socketpair failed with errno %d - %s \n", errno, strerror( errno ) );
 181                 goto test_failed_exit;
 182         }
 183
 184         /* fork here and use pipe to communicate */
 185         my_pid = fork( );
 186         if ( my_pid == -1 ) {
 187                 printf( "fork failed with errno %d - %s \n", errno, strerror( errno ) );
 188                 goto test_failed_exit;
 189         }
 190         else if ( my_pid == 0 ) {
 191                 /*
 192                  * child process - tell parent we are ready to go.
 193                  */
 194                 my_count = write( my_sockets[1], "r", 1 );
 195                 if ( my_count == -1 ) {
 196                         printf( "write call failed.  got errno %d - %s. \n", errno, strerror( errno ) );
 197                         exit( -1 );
 198                 }
 199
 200                 my_count = read( my_sockets[1], &my_buffer[0], 1 );
 201                 if ( my_count == -1 ) {
 202                         printf( "read call failed with error %d - \"%s\" \n", errno, strerror( errno) );
 203                         exit( -1 );
 204                 }
 205                 if ( my_buffer[0] != 'g' ) {
 206                         printf( "read call on socket failed to get \"all done\" message \n" );
 207                         exit( -1 );
 208                 }
 209
 210                 /* now do some work that will trigger events our parent will track */
 211                 my_count = write( my_fd, "11111111", 8 );
 212                 if ( my_count == -1 ) {
 213                         printf( "write call failed with error %d - \"%s\" \n", errno, strerror( errno) );
 214                         exit( -1 );
 215                 }
 216
 217                 my_err = unlink( my_pathp );
 218                 if ( my_err == -1 ) {
 219                         printf( "unlink failed with error %d - \"%s\" \n", errno, strerror( errno) );
 220                         exit( -1 );
 221                 }
 222
 223                 /* wait for parent to tell us to exit */
 224                 my_count = read( my_sockets[1], &my_buffer[0], 1 );
 225                 if ( my_count == -1 ) {
 226                         printf( "read call failed with error %d - \"%s\" \n", errno, strerror( errno) );
 227                         exit( -1 );
 228                 }
 229                 if ( my_buffer[0] != 'e' ) {
 230                         printf( "read call on socket failed to get \"all done\" message \n" );
 231                         exit( -1 );
 232                 }
 233                 exit(0);
 234         }
 235
 236         /* parent process - wait for child to spin up */
 237         my_count = read( my_sockets[0], &my_buffer[0], sizeof(my_buffer) );
 238         if ( my_count == -1 ) {
 239                 printf( "read call failed with error %d - \"%s\" \n", errno, strerror( errno) );
 240                 goto test_failed_exit;
 241         }
 242         if ( my_buffer[0] != 'r' ) {
 243                 printf( "read call on socket failed to get \"ready to go message\" \n" );
 244                 goto test_failed_exit;
 245         }
 246
 247         /* set up a kqueue and register for some events */
 248         my_kqueue = kqueue( );
 249         if ( my_kqueue == -1 ) {
 250                 printf( "kqueue call failed with error %d - \"%s\" \n", errno, strerror( errno) );
 251                 goto test_failed_exit;
 252         }
 253
 254         /* look for our test file to get unlinked or written to */
 255         EV_SET( &my_keventv[0], my_fd, EVFILT_VNODE, (EV_ADD | EV_CLEAR), (NOTE_DELETE | NOTE_WRITE), 0, 0 );
 256         /* also keep an eye on our child process while we're at it */
 257         EV_SET( &my_keventv[1], my_pid, EVFILT_PROC, (EV_ADD | EV_ONESHOT), NOTE_EXIT, 0, 0 );
 258
 259         my_timeout.tv_sec = 0;
 260         my_timeout.tv_nsec = 0;
 261         my_err = kevent( my_kqueue, my_keventv, 2, NULL, 0, &my_timeout);
 262         if ( my_err == -1 ) {
 263                 printf( "kevent call to register events failed with error %d - \"%s\" \n", errno, strerror( errno) );
 264                 goto test_failed_exit;
 265         }
 266
 267         /* use kevent64 to test EVFILT_PROC */
 268         EV_SET64( &my_kevent64, my_pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, 0, 0, 0 );
 269         my_err = kevent64( my_kqueue, &my_kevent64, 1, NULL, 0, 0, 0);
 270         if ( my_err != -1 && errno != EINVAL ) {
 271                 printf( "kevent64 call should fail with kqueue used for kevent() - %d\n", my_err);
 272                 goto test_failed_exit;
 273         }
 274
 275         my_kqueue64 = kqueue();
 276         EV_SET64( &my_kevent64, my_pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, 0, 0, 0 );
 277         my_err = kevent64( my_kqueue64, &my_kevent64, 1, NULL, 0, 0, 0);
 278         if ( my_err == -1 ) {
 279                 printf( "kevent64 call to get proc exit failed with error %d - \"%s\" \n", errno, strerror( errno) );
 280                 goto test_failed_exit;
 281         }
 282
 283         /* tell child to get to work */
 284         my_count = write( my_sockets[0], "g", 1 );
 285         if ( my_count == -1 ) {
 286                 printf( "write call failed.  got errno %d - %s. \n", errno, strerror( errno ) );
 287                 goto test_failed_exit;
 288         }
 289
 290         /* go get vnode events */
 291         EV_SET( &my_keventv[0], my_fd, EVFILT_VNODE, (EV_CLEAR), 0, 0, 0 );
 292         my_err = kevent( my_kqueue, NULL, 0, my_keventv, 1, NULL );
 293         if ( my_err == -1 ) {
 294                 printf( "kevent call to get vnode events failed with error %d - \"%s\" \n", errno, strerror( errno) );
 295                 goto test_failed_exit;
 296         }
 297         if ( my_err == 0 ) {
 298                 printf( "kevent call to get vnode events did not return any when it should have \n" );
 299                 goto test_failed_exit;
 300         }
 301         if ( (my_keventv[0].fflags & (NOTE_DELETE | NOTE_WRITE)) == 0 ) {
 302                 printf( "kevent call to get vnode events did not return NOTE_DELETE or NOTE_WRITE \n" );
 303                 printf( "fflags 0x%02X \n", my_keventv[0].fflags );
 304                 goto test_failed_exit;
 305         }
 306
 307         /* tell child to exit */
 308         my_count = write( my_sockets[0], "e", 1 );
 309         if ( my_count == -1 ) {
 310                 printf( "write call failed.  got errno %d - %s. \n", errno, strerror( errno ) );
 311                 goto test_failed_exit;
 312         }
 313
 314         /* look for child exit notification after unregistering for vnode events */
 315         EV_SET( &my_keventv[0], my_fd, EVFILT_VNODE, EV_DELETE, 0, 0, 0 );
 316         my_err = kevent( my_kqueue, my_keventv, 1, my_keventv, 1, NULL );
 317         if ( my_err == -1 ) {
 318                 printf( "kevent call to get proc exit event failed with error %d - \"%s\" \n", errno, strerror( errno) );
 319                 goto test_failed_exit;
 320         }
 321         if ( my_err == 0 ) {
 322                 printf( "kevent call to get proc exit event did not return any when it should have \n" );
 323                 goto test_failed_exit;
 324         }
 325         if ( my_keventv[0].filter != EVFILT_PROC ) {
 326                 printf( "kevent call to get proc exit event did not return EVFILT_PROC \n" );
 327                 printf( "filter %i \n", my_keventv[0].filter );
 328                 goto test_failed_exit;
 329         }
 330         if ( (my_keventv[0].fflags & NOTE_EXIT) == 0 ) {
 331                 printf( "kevent call to get proc exit event did not return NOTE_EXIT \n" );
 332                 printf( "fflags 0x%02X \n", my_keventv[0].fflags );
 333                 goto test_failed_exit;
 334         }
 335
 336         /* look for child exit notification on the kevent64 kqueue */
 337         EV_SET64( &my_kevent64, my_pid, EVFILT_PROC, EV_CLEAR, NOTE_EXIT, 0, 0, 0, 0 );
 338         my_err = kevent64( my_kqueue64, NULL, 0, &my_kevent64, 1, 0, 0);
 339         if ( my_err == -1 ) {
 340                 printf( "kevent64 call to get child exit failed with error %d - \"%s\" \n", errno, strerror( errno) );
 341                 goto test_failed_exit;
 342         }
 343         if ( my_err == 0 ) {
 344                 printf( "kevent64 call to get proc exit event did not return any when it should have \n" );
 345                 goto test_failed_exit;
 346         }
 347         if ( my_kevent64.filter != EVFILT_PROC ) {
 348                 printf( "kevent64 call to get proc exit event did not return EVFILT_PROC \n" );
 349                 printf( "filter %i \n", my_kevent64.filter );
 350                 goto test_failed_exit;
 351         }
 352         if ( (my_kevent64.fflags & NOTE_EXIT) == 0 ) {
 353                 printf( "kevent64 call to get proc exit event did not return NOTE_EXIT \n" );
 354                 printf( "fflags 0x%02X \n", my_kevent64.fflags );
 355                 goto test_failed_exit;
 356         }
 357
 358         my_wait_pid = wait4( my_pid, &my_status, 0, NULL );
 359         if ( my_wait_pid == -1 ) {
 360                 printf( "wait4 failed with errno %d - %s \n", errno, strerror( errno ) );
 361                 goto test_failed_exit;
 362         }
 363
 364         /* wait4 should return our child's pid when it exits */
 365         if ( my_wait_pid != my_pid ) {
 366                 printf( "wait4 did not return child pid - returned %d should be %d \n", my_wait_pid, my_pid );
 367                 goto test_failed_exit;
 368         }
 369
 370         if ( WIFEXITED( my_status ) && WEXITSTATUS( my_status ) != 0 ) {
 371                 printf( "wait4 returned wrong exit status - 0x%02X \n", my_status );
 372                 goto test_failed_exit;
 373         }
 374
 375         /* now try out EVFILT_MACHPORT and EVFILT_USER */
 376         mach_port_t my_pset = MACH_PORT_NULL;
 377         mach_port_t my_port = MACH_PORT_NULL;
 378         kern_return_t my_kr;
 379
 380         my_kr = mach_port_allocate( mach_task_self(), MACH_PORT_RIGHT_PORT_SET, &my_pset );
 381         if ( my_kr != KERN_SUCCESS ) {
 382                 printf( "mach_port_allocate failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
 383                 goto test_failed_exit;
 384         }
 385
 386         my_kr = mach_port_allocate( mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &my_port );
 387         if ( my_kr != KERN_SUCCESS ) {
 388                 printf( "mach_port_allocate failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
 389                 goto test_failed_exit;
 390         }
 391
 392         /* try to register for events on my_port directly -- this should fail */
 393         EV_SET( &my_keventv[0], my_port, EVFILT_MACHPORT, (EV_ADD | EV_DISPATCH), 0, 0, 0 );
 394         my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
 395         if ( my_err != -1 || errno != ENOTSUP ) {
 396                 printf( "kevent call to register my_port should have failed, but got %s \n", strerror(errno) );
 397                 goto test_failed_exit;
 398         }
 399
 400         /* now register for events on my_pset and user 0 */
 401         EV_SET( &my_keventv[0], my_pset, EVFILT_MACHPORT, (EV_ADD | EV_CLEAR | EV_DISPATCH), 0, 0, 0 );
 402         EV_SET( &my_keventv[1], 0, EVFILT_USER, EV_ADD, 0, 0, 0 );
 403         my_err = kevent( my_kqueue, my_keventv, 2, NULL, 0, NULL );
 404         if ( my_err == -1 ) {
 405                 printf( "kevent call to register my_pset and user 0 failed with error %d - %s \n", errno, strerror( errno) );
 406                 goto test_failed_exit;
 407         }
 408
 409         pthread_t my_threadv[3];
 410
 411         for (my_index = 0;
 412              my_index < 3;
 413              my_index++) {
 414           my_err = pthread_create( &my_threadv[my_index], NULL, kmsg_consumer_thread, (void *)&my_kqueue );
 415                 if ( my_err != 0 ) {
 416                         printf( "pthread_create failed with error %d - %s \n", my_err, strerror(my_err) );
 417                         goto test_failed_exit;
 418                 }
 419         }
 420
 421         /* insert my_port into my_pset */
 422         my_kr = mach_port_insert_member( mach_task_self(), my_port, my_pset );
 423         if ( my_kr != KERN_SUCCESS ) {
 424                 printf( "mach_port_insert_member failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
 425                 goto test_failed_exit;
 426         }
 427
 428         my_kr = mach_port_insert_right( mach_task_self(), my_port, my_port, MACH_MSG_TYPE_MAKE_SEND );
 429         if ( my_kr != KERN_SUCCESS ) {
 430                 printf( "mach_port_insert_right failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
 431                 goto test_failed_exit;
 432         }
 433
 434         /* send some Mach messages */
 435         for (my_index = 1;
 436              my_index <= msg_count;
 437              my_index++) {
 438           my_kr = kmsg_send( my_port, my_index );
 439                 if ( my_kr != KERN_SUCCESS ) {
 440                         printf( "kmsg_send failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
 441                         goto test_failed_exit;
 442                 }
 443         }
 444
 445         /* make sure the last message eventually gets processed */
 446         pthread_mutex_lock(&my_mutex);
 447         while (last_msg_seen == 0)
 448           pthread_cond_wait(&my_cond, &my_mutex);
 449         pthread_mutex_unlock(&my_mutex);
 450
 451         /* trigger the user 0 event, telling consumer threads to exit */
 452         EV_SET( &my_keventv[0], 0, EVFILT_USER, 0, NOTE_TRIGGER, 0, 0 );
 453         my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
 454         if ( my_err == -1 ) {
 455                 printf( "kevent call to trigger user 0 failed with error %d - %s \n", errno, strerror( errno) );
 456                 goto test_failed_exit;
 457         }
 458
 459         for (my_index = 0;
 460              my_index < 3;
 461              my_index++) {
 462           my_err = pthread_join( my_threadv[my_index], &my_pthread_join_status );
 463                 if ( my_err != 0 ) {
 464                         printf( "pthread_join failed with error %d - %s \n", my_err, strerror(my_err) );
 465                         goto test_failed_exit;
 466                 }
 467                 if ( my_pthread_join_status != 0 ) {
 468                         goto test_failed_exit;
 469                 }
 470         }
 471
 472         /* clear the user 0 event */
 473         EV_SET( &my_keventv[0], 0, EVFILT_USER, EV_CLEAR, 0, 0, 0 );
 474         my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
 475         if ( my_err == -1 ) {
 476                 printf( "kevent call to trigger user 0 failed with error %d - %s \n", errno, strerror( errno) );
 477                 goto test_failed_exit;
 478         }
 479
 480         /* delibrately destroy my_pset while it's still registered for events */
 481         my_kr = mach_port_mod_refs( mach_task_self(), my_pset, MACH_PORT_RIGHT_PORT_SET, -1 );
 482         if ( my_kr != KERN_SUCCESS ) {
 483                 printf( "mach_port_mod_refs failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
 484                 goto test_failed_exit;
 485         }
 486
 487         /* look for the event to trigger with a zero msg_size */
 488         my_err = kevent( my_kqueue, NULL, 0, my_keventv, 1, NULL );
 489         if ( my_err == -1 ) {
 490                 printf( "kevent call to get machport event failed with error %d - \"%s\" \n", errno, strerror( errno) );
 491                 goto test_failed_exit;
 492         }
 493         if ( my_err == 0 ) {
 494                 printf( "kevent call to get machport event did not return any when it should have \n" );
 495                 goto test_failed_exit;
 496         }
 497         if ( my_keventv[0].filter != EVFILT_MACHPORT ) {
 498                 printf( "kevent call to get machport event did not return EVFILT_MACHPORT \n" );
 499                 printf( "filter %i \n", my_keventv[0].filter );
 500                 goto test_failed_exit;
 501         }
 502         if ( my_keventv[0].data != 0 ) {
 503                 printf( "kevent call to get machport event did not return 0 msg_size \n" );
 504                 printf( "data %ld \n", (long int) my_keventv[0].data );
 505                 goto test_failed_exit;
 506         }
 507
 508         my_err = 0;
 509         goto test_passed_exit;
 510
 511 test_failed_exit:
 512         my_err = -1;
 513
 514 test_passed_exit:
 515         if ( my_sockets[0] != -1 )
 516                 close( my_sockets[0] );
 517         if ( my_sockets[1] != -1 )
 518                 close( my_sockets[1] );
 519         if ( my_kqueue != -1 )
 520                 close( my_kqueue );
 521         if ( my_kqueue64 != -1 )
 522                 close( my_kqueue );
 523         if ( my_fd != -1 )
 524                 close( my_fd );
 525         if ( my_pathp != NULL ) {
 526                 remove( my_pathp );
 527                 vm_deallocate(mach_task_self(), (vm_address_t)my_pathp, PATH_MAX);
 528          }
 529         return( my_err );
 530 }