include/winpr/io.h File Reference

#include <winpr/winpr.h>
#include <winpr/wtypes.h>
#include <winpr/handle.h>
#include <winpr/nt.h>

This graph shows which files directly or indirectly include this file:

Data Structures
struct	OVERLAPPED
struct	OVERLAPPED_ENTRY

Macros
#define	DEVICE_TYPE   ULONG
#define	FILE_DEVICE_BEEP   0x00000001
#define	FILE_DEVICE_CD_ROM   0x00000002
#define	FILE_DEVICE_CD_ROM_FILE_SYSTEM   0x00000003
#define	FILE_DEVICE_CONTROLLER   0x00000004
#define	FILE_DEVICE_DATALINK   0x00000005
#define	FILE_DEVICE_DFS   0x00000006
#define	FILE_DEVICE_DISK   0x00000007
#define	FILE_DEVICE_DISK_FILE_SYSTEM   0x00000008
#define	FILE_DEVICE_FILE_SYSTEM   0x00000009
#define	FILE_DEVICE_INPORT_PORT   0x0000000a
#define	FILE_DEVICE_KEYBOARD   0x0000000b
#define	FILE_DEVICE_MAILSLOT   0x0000000c
#define	FILE_DEVICE_MIDI_IN   0x0000000d
#define	FILE_DEVICE_MIDI_OUT   0x0000000e
#define	FILE_DEVICE_MOUSE   0x0000000f
#define	FILE_DEVICE_MULTI_UNC_PROVIDER   0x00000010
#define	FILE_DEVICE_NAMED_PIPE   0x00000011
#define	FILE_DEVICE_NETWORK   0x00000012
#define	FILE_DEVICE_NETWORK_BROWSER   0x00000013
#define	FILE_DEVICE_NETWORK_FILE_SYSTEM   0x00000014
#define	FILE_DEVICE_NULL   0x00000015
#define	FILE_DEVICE_PARALLEL_PORT   0x00000016
#define	FILE_DEVICE_PHYSICAL_NETCARD   0x00000017
#define	FILE_DEVICE_PRINTER   0x00000018
#define	FILE_DEVICE_SCANNER   0x00000019
#define	FILE_DEVICE_SERIAL_MOUSE_PORT   0x0000001a
#define	FILE_DEVICE_SERIAL_PORT   0x0000001b
#define	FILE_DEVICE_SCREEN   0x0000001c
#define	FILE_DEVICE_SOUND   0x0000001d
#define	FILE_DEVICE_STREAMS   0x0000001e
#define	FILE_DEVICE_TAPE   0x0000001f
#define	FILE_DEVICE_TAPE_FILE_SYSTEM   0x00000020
#define	FILE_DEVICE_TRANSPORT   0x00000021
#define	FILE_DEVICE_UNKNOWN   0x00000022
#define	FILE_DEVICE_VIDEO   0x00000023
#define	FILE_DEVICE_VIRTUAL_DISK   0x00000024
#define	FILE_DEVICE_WAVE_IN   0x00000025
#define	FILE_DEVICE_WAVE_OUT   0x00000026
#define	FILE_DEVICE_8042_PORT   0x00000027
#define	FILE_DEVICE_NETWORK_REDIRECTOR   0x00000028
#define	FILE_DEVICE_BATTERY   0x00000029
#define	FILE_DEVICE_BUS_EXTENDER   0x0000002a
#define	FILE_DEVICE_MODEM   0x0000002b
#define	FILE_DEVICE_VDM   0x0000002c
#define	FILE_DEVICE_MASS_STORAGE   0x0000002d
#define	FILE_DEVICE_SMB   0x0000002e
#define	FILE_DEVICE_KS   0x0000002f
#define	FILE_DEVICE_CHANGER   0x00000030
#define	FILE_DEVICE_SMARTCARD   0x00000031
#define	FILE_DEVICE_ACPI   0x00000032
#define	FILE_DEVICE_DVD   0x00000033
#define	FILE_DEVICE_FULLSCREEN_VIDEO   0x00000034
#define	FILE_DEVICE_DFS_FILE_SYSTEM   0x00000035
#define	FILE_DEVICE_DFS_VOLUME   0x00000036
#define	FILE_DEVICE_SERENUM   0x00000037
#define	FILE_DEVICE_TERMSRV   0x00000038
#define	FILE_DEVICE_KSEC   0x00000039
#define	FILE_DEVICE_FIPS   0x0000003A
#define	FILE_DEVICE_INFINIBAND   0x0000003B
#define	FILE_DEVICE_VMBUS   0x0000003E
#define	FILE_DEVICE_CRYPT_PROVIDER   0x0000003F
#define	FILE_DEVICE_WPD   0x00000040
#define	FILE_DEVICE_BLUETOOTH   0x00000041
#define	FILE_DEVICE_MT_COMPOSITE   0x00000042
#define	FILE_DEVICE_MT_TRANSPORT   0x00000043
#define	FILE_DEVICE_BIOMETRIC   0x00000044
#define	FILE_DEVICE_PMI   0x00000045
#define	CTL_CODE(DeviceType, Function, Method, Access)    (((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))
#define	DEVICE_TYPE_FROM_CTL_CODE(ctrlCode)   (((DWORD)(ctrlCode & 0xFFFF0000)) >> 16)
#define	METHOD_FROM_CTL_CODE(ctrlCode)   ((DWORD)(ctrlCode & 3))
#define	METHOD_BUFFERED   0
#define	METHOD_IN_DIRECT   1
#define	METHOD_OUT_DIRECT   2
#define	METHOD_NEITHER   3
#define	FILE_ANY_ACCESS   0
#define	FILE_SPECIAL_ACCESS   (FILE_ANY_ACCESS)
#define	FILE_READ_ACCESS   (0x0001)
#define	FILE_WRITE_ACCESS   (0x0002)
#define	ACCESS_FROM_CTL_CODE(ctrlCode)   ((DWORD)((ctrlCode >> 14) & 0x3))
#define	FUNCTION_FROM_CTL_CODE(ctrlCode)   ((DWORD)((ctrlCode >> 2) & 0xFFF))

Typedefs
typedef struct OVERLAPPED *	LPOVERLAPPED
typedef struct OVERLAPPED_ENTRY *	LPOVERLAPPED_ENTRY
typedef HANDLE	PDRIVER_OBJECT_EX
typedef HANDLE	PDEVICE_OBJECT_EX

Functions
WINPR_API BOOL	GetOverlappedResult (HANDLE hFile, LPOVERLAPPED lpOverlapped, LPDWORD lpNumberOfBytesTransferred, BOOL bWait)
WINPR_API BOOL	GetOverlappedResultEx (HANDLE hFile, LPOVERLAPPED lpOverlapped, LPDWORD lpNumberOfBytesTransferred, DWORD dwMilliseconds, BOOL bAlertable)
WINPR_API BOOL	DeviceIoControl (HANDLE hDevice, DWORD dwIoControlCode, LPVOID lpInBuffer, DWORD nInBufferSize, LPVOID lpOutBuffer, DWORD nOutBufferSize, LPDWORD lpBytesReturned, LPOVERLAPPED lpOverlapped)
WINPR_API HANDLE	CreateIoCompletionPort (HANDLE FileHandle, HANDLE ExistingCompletionPort, ULONG_PTR CompletionKey, DWORD NumberOfConcurrentThreads)
WINPR_API BOOL	GetQueuedCompletionStatus (HANDLE CompletionPort, LPDWORD lpNumberOfBytesTransferred, PULONG_PTR lpCompletionKey, LPOVERLAPPED *lpOverlapped, DWORD dwMilliseconds)
WINPR_API BOOL	GetQueuedCompletionStatusEx (HANDLE CompletionPort, LPOVERLAPPED_ENTRY lpCompletionPortEntries, ULONG ulCount, PULONG ulNumEntriesRemoved, DWORD dwMilliseconds, BOOL fAlertable)
WINPR_API BOOL	PostQueuedCompletionStatus (HANDLE CompletionPort, DWORD dwNumberOfBytesTransferred, ULONG_PTR dwCompletionKey, LPOVERLAPPED lpOverlapped)
WINPR_API BOOL	CancelIo (HANDLE hFile)
WINPR_API BOOL	CancelIoEx (HANDLE hFile, LPOVERLAPPED lpOverlapped)
WINPR_API BOOL	CancelSynchronousIo (HANDLE hThread)
WINPR_API NTSTATUS	_IoCreateDeviceEx (PDRIVER_OBJECT_EX DriverObject, ULONG DeviceExtensionSize, PUNICODE_STRING DeviceName, DEVICE_TYPE DeviceType, ULONG DeviceCharacteristics, BOOLEAN Exclusive, PDEVICE_OBJECT_EX *DeviceObject)
WINPR_API VOID	_IoDeleteDeviceEx (PDEVICE_OBJECT_EX DeviceObject)

Macro Definition Documentation

ACCESS_FROM_CTL_CODE

#define ACCESS_FROM_CTL_CODE

(

ctrlCode

)

((DWORD)((ctrlCode >> 14) & 0x3))

Extended API

CTL_CODE

#define CTL_CODE	(		DeviceType,
			Function,
			Method,
			Access
	)		(((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))

DEVICE_TYPE

#define DEVICE_TYPE   ULONG

DEVICE_TYPE_FROM_CTL_CODE

#define DEVICE_TYPE_FROM_CTL_CODE

(

ctrlCode

)

(((DWORD)(ctrlCode & 0xFFFF0000)) >> 16)

FILE_ANY_ACCESS

#define FILE_ANY_ACCESS   0

FILE_DEVICE_8042_PORT

#define FILE_DEVICE_8042_PORT   0x00000027

FILE_DEVICE_ACPI

#define FILE_DEVICE_ACPI   0x00000032

FILE_DEVICE_BATTERY

#define FILE_DEVICE_BATTERY   0x00000029

FILE_DEVICE_BEEP

#define FILE_DEVICE_BEEP   0x00000001

FILE_DEVICE_BIOMETRIC

#define FILE_DEVICE_BIOMETRIC   0x00000044

FILE_DEVICE_BLUETOOTH

#define FILE_DEVICE_BLUETOOTH   0x00000041

FILE_DEVICE_BUS_EXTENDER

#define FILE_DEVICE_BUS_EXTENDER   0x0000002a

FILE_DEVICE_CD_ROM

#define FILE_DEVICE_CD_ROM   0x00000002

FILE_DEVICE_CD_ROM_FILE_SYSTEM

#define FILE_DEVICE_CD_ROM_FILE_SYSTEM   0x00000003

FILE_DEVICE_CHANGER

#define FILE_DEVICE_CHANGER   0x00000030

FILE_DEVICE_CONTROLLER

#define FILE_DEVICE_CONTROLLER   0x00000004

FILE_DEVICE_CRYPT_PROVIDER

#define FILE_DEVICE_CRYPT_PROVIDER   0x0000003F

FILE_DEVICE_DATALINK

#define FILE_DEVICE_DATALINK   0x00000005

FILE_DEVICE_DFS

#define FILE_DEVICE_DFS   0x00000006

FILE_DEVICE_DFS_FILE_SYSTEM

#define FILE_DEVICE_DFS_FILE_SYSTEM   0x00000035

FILE_DEVICE_DFS_VOLUME

#define FILE_DEVICE_DFS_VOLUME   0x00000036

FILE_DEVICE_DISK

#define FILE_DEVICE_DISK   0x00000007

FILE_DEVICE_DISK_FILE_SYSTEM

#define FILE_DEVICE_DISK_FILE_SYSTEM   0x00000008

FILE_DEVICE_DVD

#define FILE_DEVICE_DVD   0x00000033

FILE_DEVICE_FILE_SYSTEM

#define FILE_DEVICE_FILE_SYSTEM   0x00000009

FILE_DEVICE_FIPS

#define FILE_DEVICE_FIPS   0x0000003A

FILE_DEVICE_FULLSCREEN_VIDEO

#define FILE_DEVICE_FULLSCREEN_VIDEO   0x00000034

FILE_DEVICE_INFINIBAND

#define FILE_DEVICE_INFINIBAND   0x0000003B

FILE_DEVICE_INPORT_PORT

#define FILE_DEVICE_INPORT_PORT   0x0000000a

FILE_DEVICE_KEYBOARD

#define FILE_DEVICE_KEYBOARD   0x0000000b

FILE_DEVICE_KS

#define FILE_DEVICE_KS   0x0000002f

FILE_DEVICE_KSEC

#define FILE_DEVICE_KSEC   0x00000039

FILE_DEVICE_MAILSLOT

#define FILE_DEVICE_MAILSLOT   0x0000000c

FILE_DEVICE_MASS_STORAGE

#define FILE_DEVICE_MASS_STORAGE   0x0000002d

FILE_DEVICE_MIDI_IN

#define FILE_DEVICE_MIDI_IN   0x0000000d

FILE_DEVICE_MIDI_OUT

#define FILE_DEVICE_MIDI_OUT   0x0000000e

FILE_DEVICE_MODEM

#define FILE_DEVICE_MODEM   0x0000002b

FILE_DEVICE_MOUSE

#define FILE_DEVICE_MOUSE   0x0000000f

FILE_DEVICE_MT_COMPOSITE

#define FILE_DEVICE_MT_COMPOSITE   0x00000042

FILE_DEVICE_MT_TRANSPORT

#define FILE_DEVICE_MT_TRANSPORT   0x00000043

FILE_DEVICE_MULTI_UNC_PROVIDER

#define FILE_DEVICE_MULTI_UNC_PROVIDER   0x00000010

FILE_DEVICE_NAMED_PIPE

#define FILE_DEVICE_NAMED_PIPE   0x00000011

FILE_DEVICE_NETWORK

#define FILE_DEVICE_NETWORK   0x00000012

FILE_DEVICE_NETWORK_BROWSER

#define FILE_DEVICE_NETWORK_BROWSER   0x00000013

FILE_DEVICE_NETWORK_FILE_SYSTEM

#define FILE_DEVICE_NETWORK_FILE_SYSTEM   0x00000014

FILE_DEVICE_NETWORK_REDIRECTOR

#define FILE_DEVICE_NETWORK_REDIRECTOR   0x00000028

FILE_DEVICE_NULL

#define FILE_DEVICE_NULL   0x00000015

FILE_DEVICE_PARALLEL_PORT

#define FILE_DEVICE_PARALLEL_PORT   0x00000016

FILE_DEVICE_PHYSICAL_NETCARD

#define FILE_DEVICE_PHYSICAL_NETCARD   0x00000017

FILE_DEVICE_PMI

#define FILE_DEVICE_PMI   0x00000045

FILE_DEVICE_PRINTER

#define FILE_DEVICE_PRINTER   0x00000018

FILE_DEVICE_SCANNER

#define FILE_DEVICE_SCANNER   0x00000019

FILE_DEVICE_SCREEN

#define FILE_DEVICE_SCREEN   0x0000001c

FILE_DEVICE_SERENUM

#define FILE_DEVICE_SERENUM   0x00000037

FILE_DEVICE_SERIAL_MOUSE_PORT

#define FILE_DEVICE_SERIAL_MOUSE_PORT   0x0000001a

FILE_DEVICE_SERIAL_PORT

#define FILE_DEVICE_SERIAL_PORT   0x0000001b

FILE_DEVICE_SMARTCARD

#define FILE_DEVICE_SMARTCARD   0x00000031

FILE_DEVICE_SMB

#define FILE_DEVICE_SMB   0x0000002e

FILE_DEVICE_SOUND

#define FILE_DEVICE_SOUND   0x0000001d

FILE_DEVICE_STREAMS

#define FILE_DEVICE_STREAMS   0x0000001e

FILE_DEVICE_TAPE

#define FILE_DEVICE_TAPE   0x0000001f

FILE_DEVICE_TAPE_FILE_SYSTEM

#define FILE_DEVICE_TAPE_FILE_SYSTEM   0x00000020

FILE_DEVICE_TERMSRV

#define FILE_DEVICE_TERMSRV   0x00000038

FILE_DEVICE_TRANSPORT

#define FILE_DEVICE_TRANSPORT   0x00000021

FILE_DEVICE_UNKNOWN

#define FILE_DEVICE_UNKNOWN   0x00000022

FILE_DEVICE_VDM

#define FILE_DEVICE_VDM   0x0000002c

FILE_DEVICE_VIDEO

#define FILE_DEVICE_VIDEO   0x00000023

FILE_DEVICE_VIRTUAL_DISK

#define FILE_DEVICE_VIRTUAL_DISK   0x00000024

FILE_DEVICE_VMBUS

#define FILE_DEVICE_VMBUS   0x0000003E

FILE_DEVICE_WAVE_IN

#define FILE_DEVICE_WAVE_IN   0x00000025

FILE_DEVICE_WAVE_OUT

#define FILE_DEVICE_WAVE_OUT   0x00000026

FILE_DEVICE_WPD

#define FILE_DEVICE_WPD   0x00000040

FILE_READ_ACCESS

#define FILE_READ_ACCESS   (0x0001)

FILE_SPECIAL_ACCESS

#define FILE_SPECIAL_ACCESS   (FILE_ANY_ACCESS)

FILE_WRITE_ACCESS

#define FILE_WRITE_ACCESS   (0x0002)

FUNCTION_FROM_CTL_CODE

#define FUNCTION_FROM_CTL_CODE

(

ctrlCode

)

((DWORD)((ctrlCode >> 2) & 0xFFF))

METHOD_BUFFERED

#define METHOD_BUFFERED   0

METHOD_FROM_CTL_CODE

#define METHOD_FROM_CTL_CODE

(

ctrlCode

)

((DWORD)(ctrlCode & 3))

METHOD_IN_DIRECT

#define METHOD_IN_DIRECT   1

METHOD_NEITHER

#define METHOD_NEITHER   3

METHOD_OUT_DIRECT

#define METHOD_OUT_DIRECT   2

Typedef Documentation

LPOVERLAPPED

typedef struct OVERLAPPED * LPOVERLAPPED

LPOVERLAPPED_ENTRY

typedef struct OVERLAPPED_ENTRY * LPOVERLAPPED_ENTRY

PDEVICE_OBJECT_EX

typedef HANDLE PDEVICE_OBJECT_EX

PDRIVER_OBJECT_EX

typedef HANDLE PDRIVER_OBJECT_EX

Function Documentation

_IoCreateDeviceEx()

WINPR_API NTSTATUS _IoCreateDeviceEx	(	PDRIVER_OBJECT_EX	DriverObject,
		ULONG	DeviceExtensionSize,
		PUNICODE_STRING	DeviceName,
		DEVICE_TYPE	DeviceType,
		ULONG	DeviceCharacteristics,
		BOOLEAN	Exclusive,
		PDEVICE_OBJECT_EX *	DeviceObject
	)

IoCreateDevice: http://msdn.microsoft.com/en-us/library/windows/hardware/ff548397/

Here is the call graph for this function:

_IoDeleteDeviceEx()

WINPR_API VOID _IoDeleteDeviceEx

(

PDEVICE_OBJECT_EX

DeviceObject

)

IoDeleteDevice: http://msdn.microsoft.com/en-us/library/windows/hardware/ff549083/

Here is the call graph for this function:

CancelIo()

WINPR_API BOOL CancelIo

(

HANDLE

hFile

)

Here is the call graph for this function:

Here is the caller graph for this function:

CancelIoEx()

WINPR_API BOOL CancelIoEx	(	HANDLE	hFile,
		LPOVERLAPPED	lpOverlapped
	)

Here is the call graph for this function:

CancelSynchronousIo()

WINPR_API BOOL CancelSynchronousIo

(

HANDLE

hThread

)

Here is the call graph for this function:

CreateIoCompletionPort()

WINPR_API HANDLE CreateIoCompletionPort	(	HANDLE	FileHandle,
		HANDLE	ExistingCompletionPort,
		ULONG_PTR	CompletionKey,
		DWORD	NumberOfConcurrentThreads
	)

Here is the call graph for this function:

DeviceIoControl()

WINPR_API BOOL DeviceIoControl	(	HANDLE	hDevice,
		DWORD	dwIoControlCode,
		LPVOID	lpInBuffer,
		DWORD	nInBufferSize,
		LPVOID	lpOutBuffer,
		DWORD	nOutBufferSize,
		LPDWORD	lpBytesReturned,
		LPOVERLAPPED	lpOverlapped
	)

Here is the call graph for this function:

GetOverlappedResult()

WINPR_API BOOL GetOverlappedResult	(	HANDLE	hFile,
		LPOVERLAPPED	lpOverlapped,
		LPDWORD	lpNumberOfBytesTransferred,
		BOOL	bWait
	)

Here is the call graph for this function:

Here is the caller graph for this function:

GetOverlappedResultEx()

WINPR_API BOOL GetOverlappedResultEx	(	HANDLE	hFile,
		LPOVERLAPPED	lpOverlapped,
		LPDWORD	lpNumberOfBytesTransferred,
		DWORD	dwMilliseconds,
		BOOL	bAlertable
	)

Here is the call graph for this function:

GetQueuedCompletionStatus()

WINPR_API BOOL GetQueuedCompletionStatus	(	HANDLE	CompletionPort,
		LPDWORD	lpNumberOfBytesTransferred,
		PULONG_PTR	lpCompletionKey,
		LPOVERLAPPED *	lpOverlapped,
		DWORD	dwMilliseconds
	)

Here is the call graph for this function:

GetQueuedCompletionStatusEx()

WINPR_API BOOL GetQueuedCompletionStatusEx	(	HANDLE	CompletionPort,
		LPOVERLAPPED_ENTRY	lpCompletionPortEntries,
		ULONG	ulCount,
		PULONG	ulNumEntriesRemoved,
		DWORD	dwMilliseconds,
		BOOL	fAlertable
	)

Here is the call graph for this function:

PostQueuedCompletionStatus()

WINPR_API BOOL PostQueuedCompletionStatus	(	HANDLE	CompletionPort,
		DWORD	dwNumberOfBytesTransferred,
		ULONG_PTR	dwCompletionKey,
		LPOVERLAPPED	lpOverlapped
	)

Here is the call graph for this function: