[apple/xnu.git] / tools / tests / xnu_quick_test / kqueue_tests.c

/*
 *  tests.c
 *  xnu_quick_test
 *
 *  Created by Jerry Cottingham on 3/25/05.
 *  Copyright 2005 Apple Computer Inc. All rights reserved.
 *
 */

#include "tests.h"
#include <pthread.h>
#include <assert.h>
#include <sys/event.h>		/* for kqueue tests */
#include <sys/sysctl.h>		/* for determining hw */
#include <mach/mach.h>
#include <AvailabilityMacros.h>	/* for determination of Mac OS X version (tiger, leopard, etc.) */
#include <libkern/OSByteOrder.h> /* for OSSwap32() */

extern char		g_target_path[ PATH_MAX ];
extern int		g_skip_setuid_tests;

int msg_count = 14;
int last_msg_seen = 0;
pthread_cond_t my_cond = PTHREAD_COND_INITIALIZER;
pthread_mutex_t my_mutex = PTHREAD_MUTEX_INITIALIZER;


static kern_return_t
kmsg_send(mach_port_t remote_port, int index)
{
	int msgh_id = 1000 + index;
        kern_return_t my_kr;
        mach_msg_header_t * my_kmsg = NULL;
	mach_msg_size_t size = sizeof(mach_msg_header_t) + sizeof(int)*index;
        
        my_kr = vm_allocate( mach_task_self(),
                             (vm_address_t *)&my_kmsg,
                             size,
                             VM_MAKE_TAG(VM_MEMORY_MACH_MSG) | TRUE );
        if (my_kr != KERN_SUCCESS)
                return my_kr;
        my_kmsg->msgh_bits =
		MACH_MSGH_BITS_SET(MACH_MSG_TYPE_COPY_SEND, 0, 0, 0);
        my_kmsg->msgh_size = size;
        my_kmsg->msgh_remote_port = remote_port;
        my_kmsg->msgh_local_port = MACH_PORT_NULL;
        my_kmsg->msgh_voucher_port = MACH_PORT_NULL;
        my_kmsg->msgh_id = msgh_id;
        my_kr = mach_msg( my_kmsg, 
                          MACH_SEND_MSG | MACH_MSG_OPTION_NONE,
			  size,
                          0, /* receive size */
                          MACH_PORT_NULL,
                          MACH_MSG_TIMEOUT_NONE,
                          MACH_PORT_NULL );
        vm_deallocate( mach_task_self(), (vm_address_t)my_kmsg, size );
        return my_kr;
}

static kern_return_t
kmsg_recv(mach_port_t portset, mach_port_t port, int * msgh_id_return)
{
        kern_return_t my_kr;
        mach_msg_header_t * my_kmsg = NULL;
        
        my_kr = vm_allocate( mach_task_self(),
                             (vm_address_t *)&my_kmsg,
                             PAGE_SIZE,
                             VM_MAKE_TAG(VM_MEMORY_MACH_MSG) | TRUE );
        if (my_kr != KERN_SUCCESS)
                return my_kr;
        my_kr = mach_msg( my_kmsg, 
                          MACH_RCV_MSG | MACH_MSG_OPTION_NONE,
                          0, /* send size */
                          PAGE_SIZE, /* receive size */
                          port,
                          MACH_MSG_TIMEOUT_NONE,
                          MACH_PORT_NULL );
        if ( my_kr == KERN_SUCCESS &&
             msgh_id_return != NULL )
                *msgh_id_return = my_kmsg->msgh_id;
        vm_deallocate( mach_task_self(), (vm_address_t)my_kmsg, PAGE_SIZE );
        return my_kr;
}

static void *
kmsg_consumer_thread(void * arg)
{
	int		my_kqueue = *(int *)arg;
	int             my_err;
	kern_return_t   my_kr;
	struct kevent	my_keventv[3];
	int		msgid;

	EV_SET( &my_keventv[0], 0, 0, 0, 0, 0, 0 );
	while ( !(my_keventv[0].filter == EVFILT_USER &&
	          my_keventv[0].ident == 0)) {
	        /* keep getting events */
	        my_err = kevent( my_kqueue, NULL, 0, my_keventv, 1, NULL );
                if ( my_err == -1 ) {
                        printf( "kevent call from consumer thread failed with error %d - \"%s\" \n", errno, strerror( errno) );
                        return (void *)-1;
                }
                if ( my_err == 0 ) {
                        printf( "kevent call from consumer thread did not return any events when it should have \n" );
                        return (void *)-1;
                }
                if ( my_keventv[0].filter == EVFILT_MACHPORT ) {
                        if ( my_keventv[0].data == 0 ) {
                                printf( "kevent call to get machport event returned 0 msg_size \n" );
                                return (void *)-1;
                        }
                        my_kr = kmsg_recv( my_keventv[0].ident, my_keventv[0].data, &msgid );
                        if ( my_kr != KERN_SUCCESS ) {
                		printf( "kmsg_recv failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
                                return (void *)-1;
                        }
                        my_keventv[0].flags = EV_ENABLE;
                        my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
                        if ( my_err == -1 ) {
                                printf( "kevent call to re-enable machport events failed with error %d - \"%s\" \n", errno, strerror( errno) );
                                return (void *)-1;
                        }
			if (msgid == 1000 + msg_count) {
				pthread_mutex_lock(&my_mutex);
				last_msg_seen = 1;
				pthread_cond_signal(&my_cond);
				pthread_mutex_unlock(&my_mutex);
			}
                }
	}
        return (void *)0;
}

/*  **************************************************************************************************************
 *	Test kevent, kqueue system calls.
 *  **************************************************************************************************************
 */
int kqueue_tests( void * the_argp )
{
	int				my_err, my_status;
	void				*my_pthread_join_status;
	int				my_kqueue = -1;
	int				my_kqueue64 = -1;
	int				my_fd = -1;
	char *			my_pathp = NULL;
    pid_t			my_pid, my_wait_pid;
	size_t			my_count, my_index;
	int				my_sockets[ 2 ] = {-1, -1};
	struct kevent	my_keventv[3];
	struct kevent64_s	my_kevent64;
	struct timespec	my_timeout;
	char			my_buffer[ 16 ];
	kern_return_t kr;	

	kr = vm_allocate((vm_map_t) mach_task_self(), (vm_address_t*)&my_pathp, PATH_MAX, VM_FLAGS_ANYWHERE);
        if(kr != KERN_SUCCESS){
                printf( "vm_allocate failed with error %d - \"%s\" \n", errno, strerror( errno) );
                goto test_failed_exit;
        }

	*my_pathp = 0x00;
	strcat( my_pathp, &g_target_path[0] );
	strcat( my_pathp, "/" );

	/* create a test file */
	my_err = create_random_name( my_pathp, 1 );
	if ( my_err != 0 ) {
		goto test_failed_exit;
	}
	
	my_fd = open( my_pathp, O_RDWR, 0 );
	if ( my_fd == -1 ) {
		printf( "open call failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}

	my_err = socketpair( AF_UNIX, SOCK_STREAM, 0, &my_sockets[0] );
	if ( my_err == -1 ) {
		printf( "socketpair failed with errno %d - %s \n", errno, strerror( errno ) );
		goto test_failed_exit;
	}

	/* fork here and use pipe to communicate */
	my_pid = fork( );
	if ( my_pid == -1 ) {
		printf( "fork failed with errno %d - %s \n", errno, strerror( errno ) );
		goto test_failed_exit;
	}
	else if ( my_pid == 0 ) {
		/* 
		 * child process - tell parent we are ready to go.
		 */
		my_count = write( my_sockets[1], "r", 1 );
		if ( my_count == -1 ) {
			printf( "write call failed.  got errno %d - %s. \n", errno, strerror( errno ) );
			exit( -1 );
		}

		my_count = read( my_sockets[1], &my_buffer[0], 1 );
		if ( my_count == -1 ) {
			printf( "read call failed with error %d - \"%s\" \n", errno, strerror( errno) );
			exit( -1 );
		}
		if ( my_buffer[0] != 'g' ) {
			printf( "read call on socket failed to get \"all done\" message \n" );
			exit( -1 );
		}

		/* now do some work that will trigger events our parent will track */
		my_count = write( my_fd, "11111111", 8 );
		if ( my_count == -1 ) {
			printf( "write call failed with error %d - \"%s\" \n", errno, strerror( errno) );
			exit( -1 );
		}
	
		my_err = unlink( my_pathp );
		if ( my_err == -1 ) {
			printf( "unlink failed with error %d - \"%s\" \n", errno, strerror( errno) );
			exit( -1 );
		}

		/* wait for parent to tell us to exit */
		my_count = read( my_sockets[1], &my_buffer[0], 1 );
		if ( my_count == -1 ) {
			printf( "read call failed with error %d - \"%s\" \n", errno, strerror( errno) );
			exit( -1 );
		}
		if ( my_buffer[0] != 'e' ) {
			printf( "read call on socket failed to get \"all done\" message \n" );
			exit( -1 );
		}
		exit(0);
	}
	
	/* parent process - wait for child to spin up */
	my_count = read( my_sockets[0], &my_buffer[0], sizeof(my_buffer) );
	if ( my_count == -1 ) {
		printf( "read call failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	if ( my_buffer[0] != 'r' ) {
		printf( "read call on socket failed to get \"ready to go message\" \n" );
		goto test_failed_exit;
	}

	/* set up a kqueue and register for some events */
	my_kqueue = kqueue( );
	if ( my_kqueue == -1 ) {
		printf( "kqueue call failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}

	/* look for our test file to get unlinked or written to */
	EV_SET( &my_keventv[0], my_fd, EVFILT_VNODE, (EV_ADD | EV_CLEAR), (NOTE_DELETE | NOTE_WRITE), 0, 0 );
	/* also keep an eye on our child process while we're at it */
	EV_SET( &my_keventv[1], my_pid, EVFILT_PROC, (EV_ADD | EV_ONESHOT), NOTE_EXIT, 0, 0 );

	my_timeout.tv_sec = 0;
	my_timeout.tv_nsec = 0;
	my_err = kevent( my_kqueue, my_keventv, 2, NULL, 0, &my_timeout);
	if ( my_err == -1 ) {
		printf( "kevent call to register events failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}

	/* use kevent64 to test EVFILT_PROC */
	EV_SET64( &my_kevent64, my_pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, 0, 0, 0 ); 
	my_err = kevent64( my_kqueue, &my_kevent64, 1, NULL, 0, 0, 0); 
	if ( my_err != -1 && errno != EINVAL ) {
		printf( "kevent64 call should fail with kqueue used for kevent() - %d\n", my_err);
		goto test_failed_exit;
	}
		
	my_kqueue64 = kqueue();
	EV_SET64( &my_kevent64, my_pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, 0, 0, 0 ); 
	my_err = kevent64( my_kqueue64, &my_kevent64, 1, NULL, 0, 0, 0); 
	if ( my_err == -1 ) {
		printf( "kevent64 call to get proc exit failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}

	/* tell child to get to work */
	my_count = write( my_sockets[0], "g", 1 );
	if ( my_count == -1 ) {
		printf( "write call failed.  got errno %d - %s. \n", errno, strerror( errno ) );
		goto test_failed_exit;
	}

	/* go get vnode events */
	EV_SET( &my_keventv[0], my_fd, EVFILT_VNODE, (EV_CLEAR), 0, 0, 0 );
	my_err = kevent( my_kqueue, NULL, 0, my_keventv, 1, NULL );
	if ( my_err == -1 ) {
		printf( "kevent call to get vnode events failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	if ( my_err == 0 ) {
		printf( "kevent call to get vnode events did not return any when it should have \n" );
		goto test_failed_exit;
	}
	if ( (my_keventv[0].fflags & (NOTE_DELETE | NOTE_WRITE)) == 0 ) {
		printf( "kevent call to get vnode events did not return NOTE_DELETE or NOTE_WRITE \n" );
		printf( "fflags 0x%02X \n", my_keventv[0].fflags );
		goto test_failed_exit;
	}

	/* tell child to exit */
	my_count = write( my_sockets[0], "e", 1 );
	if ( my_count == -1 ) {
		printf( "write call failed.  got errno %d - %s. \n", errno, strerror( errno ) );
		goto test_failed_exit;
	}
	
	/* look for child exit notification after unregistering for vnode events */
	EV_SET( &my_keventv[0], my_fd, EVFILT_VNODE, EV_DELETE, 0, 0, 0 );
	my_err = kevent( my_kqueue, my_keventv, 1, my_keventv, 1, NULL );
	if ( my_err == -1 ) {
		printf( "kevent call to get proc exit event failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	if ( my_err == 0 ) {
		printf( "kevent call to get proc exit event did not return any when it should have \n" );
		goto test_failed_exit;
	}
	if ( my_keventv[0].filter != EVFILT_PROC ) {
		printf( "kevent call to get proc exit event did not return EVFILT_PROC \n" );
		printf( "filter %i \n", my_keventv[0].filter );
		goto test_failed_exit;
	}
	if ( (my_keventv[0].fflags & NOTE_EXIT) == 0 ) {
		printf( "kevent call to get proc exit event did not return NOTE_EXIT \n" );
		printf( "fflags 0x%02X \n", my_keventv[0].fflags );
		goto test_failed_exit;
	}

	/* look for child exit notification on the kevent64 kqueue */
	EV_SET64( &my_kevent64, my_pid, EVFILT_PROC, EV_CLEAR, NOTE_EXIT, 0, 0, 0, 0 ); 
	my_err = kevent64( my_kqueue64, NULL, 0, &my_kevent64, 1, 0, 0); 
	if ( my_err == -1 ) {
		printf( "kevent64 call to get child exit failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	if ( my_err == 0 ) {
		printf( "kevent64 call to get proc exit event did not return any when it should have \n" );
		goto test_failed_exit;
	}
	if ( my_kevent64.filter != EVFILT_PROC ) {
		printf( "kevent64 call to get proc exit event did not return EVFILT_PROC \n" );
		printf( "filter %i \n", my_kevent64.filter );
		goto test_failed_exit;
	}
	if ( (my_kevent64.fflags & NOTE_EXIT) == 0 ) {
		printf( "kevent64 call to get proc exit event did not return NOTE_EXIT \n" );
		printf( "fflags 0x%02X \n", my_kevent64.fflags );
		goto test_failed_exit;
	}

	my_wait_pid = wait4( my_pid, &my_status, 0, NULL );
	if ( my_wait_pid == -1 ) {
		printf( "wait4 failed with errno %d - %s \n", errno, strerror( errno ) );
		goto test_failed_exit;
	}

	/* wait4 should return our child's pid when it exits */
	if ( my_wait_pid != my_pid ) {
		printf( "wait4 did not return child pid - returned %d should be %d \n", my_wait_pid, my_pid );
		goto test_failed_exit;
	}

	if ( WIFEXITED( my_status ) && WEXITSTATUS( my_status ) != 0 ) {
		printf( "wait4 returned wrong exit status - 0x%02X \n", my_status );
		goto test_failed_exit;
	}
	
	/* now try out EVFILT_MACHPORT and EVFILT_USER */
	mach_port_t my_pset = MACH_PORT_NULL;
	mach_port_t my_port = MACH_PORT_NULL;
	kern_return_t my_kr;

	my_kr = mach_port_allocate( mach_task_self(), MACH_PORT_RIGHT_PORT_SET, &my_pset );
	if ( my_kr != KERN_SUCCESS ) {
		printf( "mach_port_allocate failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
		goto test_failed_exit;
	}
	
	my_kr = mach_port_allocate( mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &my_port );
	if ( my_kr != KERN_SUCCESS ) {
		printf( "mach_port_allocate failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
		goto test_failed_exit;
	}
	
	/* try to register for events on my_port directly -- this should fail */
	EV_SET( &my_keventv[0], my_port, EVFILT_MACHPORT, (EV_ADD | EV_DISPATCH), 0, 0, 0 );
	my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
	if ( my_err != -1 || errno != ENOTSUP ) {
		printf( "kevent call to register my_port should have failed, but got %s \n", strerror(errno) );
		goto test_failed_exit;
	}
	
	/* now register for events on my_pset and user 0 */
	EV_SET( &my_keventv[0], my_pset, EVFILT_MACHPORT, (EV_ADD | EV_CLEAR | EV_DISPATCH), 0, 0, 0 );
	EV_SET( &my_keventv[1], 0, EVFILT_USER, EV_ADD, 0, 0, 0 );
	my_err = kevent( my_kqueue, my_keventv, 2, NULL, 0, NULL );
	if ( my_err == -1 ) {
	        printf( "kevent call to register my_pset and user 0 failed with error %d - %s \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	
	pthread_t my_threadv[3];

	for (my_index = 0;
	     my_index < 3;
	     my_index++) {
	  my_err = pthread_create( &my_threadv[my_index], NULL, kmsg_consumer_thread, (void *)&my_kqueue );
                if ( my_err != 0 ) {
                        printf( "pthread_create failed with error %d - %s \n", my_err, strerror(my_err) );
                        goto test_failed_exit;
                }
        }

	/* insert my_port into my_pset */
	my_kr = mach_port_insert_member( mach_task_self(), my_port, my_pset );
	if ( my_kr != KERN_SUCCESS ) {
		printf( "mach_port_insert_member failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
		goto test_failed_exit;
	}
	
	my_kr = mach_port_insert_right( mach_task_self(), my_port, my_port, MACH_MSG_TYPE_MAKE_SEND );
	if ( my_kr != KERN_SUCCESS ) {
		printf( "mach_port_insert_right failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
		goto test_failed_exit;
	}
	
	/* send some Mach messages */
	for (my_index = 1;
	     my_index <= msg_count;
	     my_index++) {
	  my_kr = kmsg_send( my_port, my_index );
                if ( my_kr != KERN_SUCCESS ) {
                        printf( "kmsg_send failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
                        goto test_failed_exit;
                }
        }

	/* make sure the last message eventually gets processed */
	pthread_mutex_lock(&my_mutex);
	while (last_msg_seen == 0) 
	  pthread_cond_wait(&my_cond, &my_mutex);
	pthread_mutex_unlock(&my_mutex);

	/* trigger the user 0 event, telling consumer threads to exit */
	EV_SET( &my_keventv[0], 0, EVFILT_USER, 0, NOTE_TRIGGER, 0, 0 );
	my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
	if ( my_err == -1 ) {
	        printf( "kevent call to trigger user 0 failed with error %d - %s \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	
	for (my_index = 0;
	     my_index < 3;
	     my_index++) {
	  my_err = pthread_join( my_threadv[my_index], &my_pthread_join_status );
                if ( my_err != 0 ) {
                        printf( "pthread_join failed with error %d - %s \n", my_err, strerror(my_err) );
                        goto test_failed_exit;
                }
                if ( my_pthread_join_status != 0 ) {
                        goto test_failed_exit;
                }
        }
	
	/* clear the user 0 event */
	EV_SET( &my_keventv[0], 0, EVFILT_USER, EV_CLEAR, 0, 0, 0 );
	my_err = kevent( my_kqueue, my_keventv, 1, NULL, 0, NULL );
	if ( my_err == -1 ) {
	        printf( "kevent call to trigger user 0 failed with error %d - %s \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	
	/* delibrately destroy my_pset while it's still registered for events */
	my_kr = mach_port_mod_refs( mach_task_self(), my_pset, MACH_PORT_RIGHT_PORT_SET, -1 );
	if ( my_kr != KERN_SUCCESS ) {
		printf( "mach_port_mod_refs failed with error %d - %s \n", my_kr, mach_error_string(my_kr) );
		goto test_failed_exit;
	}

	/* look for the event to trigger with a zero msg_size */
	my_err = kevent( my_kqueue, NULL, 0, my_keventv, 1, NULL );
	if ( my_err == -1 ) {
		printf( "kevent call to get machport event failed with error %d - \"%s\" \n", errno, strerror( errno) );
		goto test_failed_exit;
	}
	if ( my_err == 0 ) {
		printf( "kevent call to get machport event did not return any when it should have \n" );
		goto test_failed_exit;
	}
	if ( my_keventv[0].filter != EVFILT_MACHPORT ) {
		printf( "kevent call to get machport event did not return EVFILT_MACHPORT \n" );
		printf( "filter %i \n", my_keventv[0].filter );
		goto test_failed_exit;
	}
	if ( my_keventv[0].data != 0 ) {
		printf( "kevent call to get machport event did not return 0 msg_size \n" );
		printf( "data %ld \n", (long int) my_keventv[0].data );
		goto test_failed_exit;
	}
	
	my_err = 0;
	goto test_passed_exit;

test_failed_exit:
	my_err = -1;
	
test_passed_exit:
	if ( my_sockets[0] != -1 )
		close( my_sockets[0] );
	if ( my_sockets[1] != -1 )
		close( my_sockets[1] );
	if ( my_kqueue != -1 )
		close( my_kqueue );
	if ( my_kqueue64 != -1 )
		close( my_kqueue );
	if ( my_fd != -1 )
		close( my_fd );
	if ( my_pathp != NULL ) {
		remove( my_pathp );	
		vm_deallocate(mach_task_self(), (vm_address_t)my_pathp, PATH_MAX);	
	 }
	return( my_err );
}
Commit	Line	Data
b0d623f7 A	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;
b0d623f7 A	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;
fe8ab488 A	42	my_kmsg->msgh_bits =
fe8ab488 A	43	MACH_MSGH_BITS_SET(MACH_MSG_TYPE_COPY_SEND, 0, 0, 0);
b0d623f7 A	44	my_kmsg->msgh_size = size;
	45	my_kmsg->msgh_remote_port = remote_port;
	46	my_kmsg->msgh_local_port = MACH_PORT_NULL;
fe8ab488	47	my_kmsg->msgh_voucher_port = MACH_PORT_NULL;
b0d623f7 A	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	{
b0d623f7 A	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;
b0d623f7 A	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;
6d2010ae	142	void *my_pthread_join_status;
b0d623f7 A	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];
b0d623f7	151	struct kevent64_s my_kevent64;
b0d623f7 A	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
6d2010ae A	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	}
b0d623f7	274
6d2010ae A	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;
b0d623f7	281	}
b0d623f7 A	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
6d2010ae A	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;
b0d623f7 A	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++) {
6d2010ae	462	my_err = pthread_join( my_threadv[my_index], &my_pthread_join_status );
b0d623f7 A	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	}
6d2010ae	467	if ( my_pthread_join_status != 0 ) {
b0d623f7 A	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	}
b0d623f7 A	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	}