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server: Allow the mailslot device to be opened as a file object.

This commit is contained in:
Alexandre Julliard 2005-12-12 14:39:27 +01:00
parent 26e60d8ffc
commit b0aa29effa
1 changed files with 33 additions and 12 deletions
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45
server/mailslot.c
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@ -65,6 +65,7 @@ struct mailslot
struct mailslot_device
{
struct object obj; /* object header */
struct fd *fd; /* pseudo-fd for ioctls */
struct namespace *mailslots; /* mailslot namespace */
};
@ -142,6 +143,7 @@ static const struct fd_ops mail_writer_fd_ops =
};
static void mailslot_device_dump( struct object *obj, int verbose );
static struct fd *mailslot_device_get_fd( struct object *obj );
static struct object *mailslot_device_lookup_name( struct object *obj, struct unicode_str *name,
unsigned int attr );
static void mailslot_device_destroy( struct object *obj );
@ -149,16 +151,26 @@ static void mailslot_device_destroy( struct object *obj );
static const struct object_ops mailslot_device_ops =
{
sizeof(struct mailslot_device), /* size */
mailslot_device_dump, /* dump */
no_add_queue, /* add_queue */
NULL, /* remove_queue */
NULL, /* signaled */
no_satisfied, /* satisfied */
no_signal, /* signal */
no_get_fd, /* get_fd */
mailslot_device_lookup_name, /* lookup_name */
no_close_handle, /* close_handle */
mailslot_device_destroy /* destroy */
mailslot_device_dump, /* dump */
no_add_queue, /* add_queue */
NULL, /* remove_queue */
NULL, /* signaled */
no_satisfied, /* satisfied */
no_signal, /* signal */
mailslot_device_get_fd, /* get_fd */
mailslot_device_lookup_name, /* lookup_name */
no_close_handle, /* close_handle */
mailslot_device_destroy /* destroy */
};
static const struct fd_ops mailslot_device_fd_ops =
{
default_fd_get_poll_events, /* get_poll_events */
default_poll_event, /* poll_event */
no_flush, /* flush */
no_get_file_info, /* get_file_info */
default_fd_queue_async, /* queue_async */
default_fd_cancel_async /* cancel_async */
};
static void mailslot_destroy( struct object *obj)
@ -248,6 +260,12 @@ static void mailslot_device_dump( struct object *obj, int verbose )
fprintf( stderr, "Mail slot device\n" );
}
static struct fd *mailslot_device_get_fd( struct object *obj )
{
struct mailslot_device *device = (struct mailslot_device *)obj;
return device->fd;
}
static struct object *mailslot_device_lookup_name( struct object *obj, struct unicode_str *name,
unsigned int attr )
{
@ -266,7 +284,8 @@ static void mailslot_device_destroy( struct object *obj )
{
struct mailslot_device *device = (struct mailslot_device*)obj;
assert( obj->ops == &mailslot_device_ops );
free( device->mailslots );
if (device->fd) release_object( device->fd );
if (device->mailslots) free( device->mailslots );
}
struct mailslot_device *create_mailslot_device( struct directory *root, const struct unicode_str *name )
@ -276,7 +295,9 @@ struct mailslot_device *create_mailslot_device( struct directory *root, const st
if ((dev = create_named_object_dir( root, name, 0, &mailslot_device_ops )) &&
get_error() != STATUS_OBJECT_NAME_EXISTS)
{
if (!(dev->mailslots = create_namespace( 7 )))
dev->mailslots = NULL;
if (!(dev->fd = alloc_pseudo_fd( &mailslot_device_fd_ops, &dev->obj )) ||
!(dev->mailslots = create_namespace( 7 )))
{
release_object( dev );
dev = NULL;