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Jackie Jiang
wine
Commits
faa1db4d
Commit
faa1db4d
authored
9 years ago
by
Alexandre Julliard
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server: Implement read and write requests for device files.
parent
41ea5529
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server/device.c
+68
-27
68 additions, 27 deletions
server/device.c
with
68 additions
and
27 deletions
server/device.c
+
68
−
27
View file @
faa1db4d
...
...
@@ -128,6 +128,10 @@ static void device_destroy( struct object *obj );
static
struct
object
*
device_open_file
(
struct
object
*
obj
,
unsigned
int
access
,
unsigned
int
sharing
,
unsigned
int
options
);
static
enum
server_fd_type
device_get_fd_type
(
struct
fd
*
fd
);
static
obj_handle_t
device_read
(
struct
fd
*
fd
,
const
async_data_t
*
async_data
,
int
blocking
,
file_pos_t
pos
);
static
obj_handle_t
device_write
(
struct
fd
*
fd
,
const
async_data_t
*
async_data
,
int
blocking
,
file_pos_t
pos
,
data_size_t
*
written
);
static
obj_handle_t
device_ioctl
(
struct
fd
*
fd
,
ioctl_code_t
code
,
const
async_data_t
*
async_data
,
int
blocking
);
...
...
@@ -156,8 +160,8 @@ static const struct fd_ops device_fd_ops =
default_fd_get_poll_events
,
/* get_poll_events */
default_poll_event
,
/* poll_event */
device_get_fd_type
,
/* get_fd_type */
no_fd
_read
,
/* read */
no_fd
_write
,
/* write */
device
_read
,
/* read */
device
_write
,
/* write */
no_fd_flush
,
/* flush */
device_ioctl
,
/* ioctl */
default_fd_queue_async
,
/* queue_async */
...
...
@@ -199,6 +203,12 @@ static struct irp_call *create_irp( struct device *device, unsigned int type, co
{
struct
irp_call
*
irp
;
if
(
!
device
->
manager
)
/* it has been deleted */
{
set_error
(
STATUS_FILE_DELETED
);
return
NULL
;
}
if
((
irp
=
alloc_object
(
&
irp_call_ops
)))
{
irp
->
device
=
(
struct
device
*
)
grab_object
(
device
);
...
...
@@ -315,48 +325,79 @@ static struct irp_call *find_irp_call( struct device *device, struct thread *thr
return
NULL
;
}
static
obj_handle_t
device_ioctl
(
struct
fd
*
fd
,
ioctl_code_t
code
,
const
async_data_t
*
async_data
,
int
blocking
)
/* queue an irp to the device */
static
obj_handle_t
queue_irp
(
struct
device
*
device
,
struct
irp_call
*
irp
,
const
async_data_t
*
async_data
,
int
blocking
)
{
struct
device
*
device
=
get_fd_user
(
fd
);
struct
irp_call
*
irp
;
obj_handle_t
handle
=
0
;
if
(
!
device
->
manager
)
/* it has been deleted */
{
set_error
(
STATUS_FILE_DELETED
);
return
0
;
}
if
(
!
(
irp
=
create_irp
(
device
,
IRP_MJ_DEVICE_CONTROL
,
get_req_data
(),
get_req_data_size
(),
get_reply_max_size
()
)))
return
0
;
irp
->
code
=
code
;
irp
->
thread
=
(
struct
thread
*
)
grab_object
(
current
);
irp
->
user_arg
=
async_data
->
arg
;
if
(
blocking
&&
!
(
handle
=
alloc_handle
(
current
->
process
,
irp
,
SYNCHRONIZE
,
0
)))
{
release_object
(
irp
);
return
0
;
}
if
(
blocking
&&
!
(
handle
=
alloc_handle
(
current
->
process
,
irp
,
SYNCHRONIZE
,
0
)))
return
0
;
if
(
!
(
irp
->
async
=
fd_queue_async
(
device
->
fd
,
async_data
,
ASYNC_TYPE_WAIT
)))
{
if
(
handle
)
close_handle
(
current
->
process
,
handle
);
release_object
(
irp
);
return
0
;
}
irp
->
thread
=
(
struct
thread
*
)
grab_object
(
current
);
irp
->
user_arg
=
async_data
->
arg
;
grab_object
(
irp
);
/* grab reference for queued irp */
list_add_tail
(
&
device
->
requests
,
&
irp
->
dev_entry
);
list_add_tail
(
&
device
->
manager
->
requests
,
&
irp
->
mgr_entry
);
if
(
list_head
(
&
device
->
manager
->
requests
)
==
&
irp
->
mgr_entry
)
/* first one */
wake_up
(
&
device
->
manager
->
obj
,
0
);
/* don't release irp since it is now queued in the device */
set_error
(
STATUS_PENDING
);
return
handle
;
}
static
obj_handle_t
device_read
(
struct
fd
*
fd
,
const
async_data_t
*
async_data
,
int
blocking
,
file_pos_t
pos
)
{
struct
device
*
device
=
get_fd_user
(
fd
);
struct
irp_call
*
irp
;
obj_handle_t
handle
;
irp
=
create_irp
(
device
,
IRP_MJ_READ
,
NULL
,
0
,
get_reply_max_size
()
);
if
(
!
irp
)
return
0
;
handle
=
queue_irp
(
device
,
irp
,
async_data
,
blocking
);
release_object
(
irp
);
return
handle
;
}
static
obj_handle_t
device_write
(
struct
fd
*
fd
,
const
async_data_t
*
async_data
,
int
blocking
,
file_pos_t
pos
,
data_size_t
*
written
)
{
struct
device
*
device
=
get_fd_user
(
fd
);
struct
irp_call
*
irp
;
obj_handle_t
handle
;
irp
=
create_irp
(
device
,
IRP_MJ_WRITE
,
get_req_data
(),
get_req_data_size
(),
0
);
if
(
!
irp
)
return
0
;
handle
=
queue_irp
(
device
,
irp
,
async_data
,
blocking
);
release_object
(
irp
);
return
handle
;
}
static
obj_handle_t
device_ioctl
(
struct
fd
*
fd
,
ioctl_code_t
code
,
const
async_data_t
*
async_data
,
int
blocking
)
{
struct
device
*
device
=
get_fd_user
(
fd
);
struct
irp_call
*
irp
;
obj_handle_t
handle
;
irp
=
create_irp
(
device
,
IRP_MJ_DEVICE_CONTROL
,
get_req_data
(),
get_req_data_size
(),
get_reply_max_size
()
);
if
(
!
irp
)
return
0
;
irp
->
code
=
code
;
handle
=
queue_irp
(
device
,
irp
,
async_data
,
blocking
);
release_object
(
irp
);
return
handle
;
}
static
struct
device
*
create_device
(
struct
directory
*
root
,
const
struct
unicode_str
*
name
,
struct
device_manager
*
manager
,
unsigned
int
attr
)
{
...
...
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