channel.c File Reference

#include "sacdrv.h"

Include dependency graph for channel.c:

Go to the source code of this file.

Functions
BOOLEAN NTAPI	ChannelIsValidType (IN SAC_CHANNEL_TYPE ChannelType)
BOOLEAN NTAPI	ChannelIsEqual (IN PSAC_CHANNEL Channel, IN PSAC_CHANNEL_ID ChannelId)
NTSTATUS NTAPI	ChannelDereferenceHandles (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelDestroy (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelOWrite (IN PSAC_CHANNEL Channel, IN PCHAR Buffer, IN ULONG BufferSize)
NTSTATUS NTAPI	ChannelOFlush (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelIWrite (IN PSAC_CHANNEL Channel, IN PCHAR Buffer, IN ULONG BufferSize)
NTSTATUS NTAPI	ChannelIRead (IN PSAC_CHANNEL Channel, IN PCHAR Buffer, IN ULONG BufferSize, IN OUT PULONG ResultBufferSize)
WCHAR NTAPI	ChannelIReadLast (IN PSAC_CHANNEL Channel)
ULONG NTAPI	ChannelIBufferLength (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelSetRedrawEvent (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelSetLockEvent (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelClearRedrawEvent (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelHasRedrawEvent (IN PSAC_CHANNEL Channel, OUT PBOOLEAN Present)
NTSTATUS NTAPI	ChannelGetStatus (IN PSAC_CHANNEL Channel, OUT PSAC_CHANNEL_STATUS ChannelStatus)
NTSTATUS NTAPI	ChannelSetStatus (IN PSAC_CHANNEL Channel, IN SAC_CHANNEL_STATUS ChannelStatus)
BOOLEAN NTAPI	ChannelIsActive (IN PSAC_CHANNEL Channel)
BOOLEAN NTAPI	ChannelIsClosed (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelGetName (IN PSAC_CHANNEL Channel, OUT PWCHAR *Name)
NTSTATUS NTAPI	ChannelSetName (IN PSAC_CHANNEL Channel, IN PWCHAR Name)
NTSTATUS NTAPI	ChannelGetDescription (IN PSAC_CHANNEL Channel, IN PWCHAR *Description)
NTSTATUS NTAPI	ChannelSetDescription (IN PSAC_CHANNEL Channel, IN PWCHAR Description)
NTSTATUS NTAPI	ChannelGetApplicationType (IN PSAC_CHANNEL Channel, OUT PGUID ApplicationType)
NTSTATUS NTAPI	ChannelInitializeVTable (IN PSAC_CHANNEL Channel)
NTSTATUS NTAPI	ChannelCreate (IN PSAC_CHANNEL Channel, IN PSAC_CHANNEL_ATTRIBUTES Attributes, IN SAC_CHANNEL_ID ChannelId)
NTSTATUS NTAPI	ChannelClose (IN PSAC_CHANNEL Channel)

Function Documentation

ChannelClearRedrawEvent()

NTSTATUS NTAPI ChannelClearRedrawEvent

(

IN PSAC_CHANNEL

Channel

)

Definition at line 198 of file channel.c.

{
    NTSTATUS Status;

    /* Clear the event */
    ChannelClearEvent(Channel, RedrawEvent);
    return Status;
}

Referenced by ConMgrSetCurrentChannel().

ChannelClose()

NTSTATUS NTAPI ChannelClose

(

IN PSAC_CHANNEL

Channel

)

Definition at line 558 of file channel.c.

{
    NTSTATUS Status;
    CHECK_PARAMETER(Channel);

    /* Set the channel inactive */
    ChannelSetStatus(Channel, Inactive);

    /* Set the close event */
    if (Channel->Flags & SAC_CHANNEL_FLAG_CLOSE_EVENT)
    {
        ChannelSetEvent(Channel, CloseEvent);
    }

    /* Close all the handles */
    Status = ChannelDereferenceHandles(Channel);
    return Status;
}

Referenced by ChanMgrCloseChannel(), and ConMgrShutdown().

ChannelCreate()

NTSTATUS NTAPI ChannelCreate	(	IN PSAC_CHANNEL	Channel,
		IN PSAC_CHANNEL_ATTRIBUTES	Attributes,
		IN SAC_CHANNEL_ID	ChannelId
	)

Definition at line 457 of file channel.c.

{
    NTSTATUS Status;
    CHECK_PARAMETER1(Channel);
    CHECK_PARAMETER2(Attributes);

    /* If a close event is being passed in, it must exist, and vice-versa */
    if (Attributes->Flag & SAC_CHANNEL_FLAG_CLOSE_EVENT)
    {
        CHECK_PARAMETER(Attributes->CloseEvent != NULL);
    }
    else
    {
        CHECK_PARAMETER(Attributes->CloseEvent == NULL);
    }

    /* If a new data event is being passed in, it must exist, and vice-versa */
    if (Attributes->Flag & SAC_CHANNEL_FLAG_HAS_NEW_DATA_EVENT)
    {
        CHECK_PARAMETER(Attributes->HasNewDataEvent != NULL);
    }
    else
    {
        CHECK_PARAMETER(Attributes->HasNewDataEvent == NULL);
    }

    /* If a lock event is being passed in, it must exist, and vice-versa */
    if (Attributes->Flag & SAC_CHANNEL_FLAG_LOCK_EVENT)
    {
        CHECK_PARAMETER(Attributes->LockEvent != NULL);
    }
    else
    {
        CHECK_PARAMETER(Attributes->LockEvent == NULL);
    }

    /* If a redraw event is being passed in, it must exist, and vice-versa */
    if (Attributes->Flag & SAC_CHANNEL_FLAG_REDRAW_EVENT)
    {
        CHECK_PARAMETER(Attributes->RedrawEvent != NULL);
    }
    else
    {
        CHECK_PARAMETER(Attributes->RedrawEvent == NULL);
    }

    /* Initialize the channel structure */
    RtlZeroMemory(Channel, sizeof(SAC_CHANNEL));
    Channel->ChannelId = ChannelId;
    Channel->ChannelType = Attributes->ChannelType;
    Channel->Flags = Attributes->Flag;
    if (Attributes->Flag & SAC_CHANNEL_FLAG_APPLICATION)
    {
        Channel->ApplicationType = Attributes->ChannelId;
    }

    /* Initialize all the locks and events */
    SacInitializeLock(&Channel->ChannelAttributeLock);
    SacInitializeLock(&Channel->ChannelOBufferLock);
    SacInitializeLock(&Channel->ChannelIBufferLock);
    ChannelInitializeEvent(Channel, Attributes, CloseEvent);
    ChannelInitializeEvent(Channel, Attributes, HasNewDataEvent);
    ChannelInitializeEvent(Channel, Attributes, LockEvent);
    ChannelInitializeEvent(Channel, Attributes, RedrawEvent);

    /* Set the name and description */
    ChannelSetName(Channel, Attributes->NameBuffer);
    ChannelSetDescription(Channel, Attributes->DescriptionBuffer);

    /* Initialize the function table for the type of channel this is */
    Status = ChannelInitializeVTable(Channel);
    if (!NT_SUCCESS(Status))
    {
        /* This is critical */
        SAC_DBG(SAC_DBG_INIT, "SAC Create Channel :: Failed to initialize vtable\n");
        goto FailChannel;
    }

    /* Now call the channel specific type constructor */
    Status = Channel->ChannelCreate(Channel);
    if (!NT_SUCCESS(Status))
    {
        /* This is critical */
        SAC_DBG(SAC_DBG_INIT, "SAC Create Channel :: Failed channel specific initialization\n");
        goto FailChannel;
    }

    /* Finally, mark the channel as active */
    ChannelSetStatus(Channel, Active);
    return STATUS_SUCCESS;

FailChannel:
    /* Destroy the channel and return the failure code */
    Channel->ChannelDestroy(Channel);
    return Status;
}

Referenced by ChanMgrCreateChannel().

ChannelDereferenceHandles()

NTSTATUS NTAPI ChannelDereferenceHandles

(

IN PSAC_CHANNEL

Channel

)

Definition at line 35 of file channel.c.

{
    CHECK_PARAMETER(Channel);

    /* Clear the data event */
    if (Channel->HasNewDataEvent)
    {
        ChannelUninitializeEvent(Channel,
                                 HasNewDataEvent,
                                 SAC_CHANNEL_FLAG_HAS_NEW_DATA_EVENT);
    }

    /* Clear the close event */
    if (Channel->CloseEvent)
    {
        ChannelUninitializeEvent(Channel,
                                 CloseEvent,
                                 SAC_CHANNEL_FLAG_CLOSE_EVENT);
    }

    /* Clear the lock event */
    if (Channel->LockEvent)
    {
        ChannelUninitializeEvent(Channel,
                                 LockEvent,
                                 SAC_CHANNEL_FLAG_LOCK_EVENT);
    }

    /* Clear the redraw event */
    if (Channel->RedrawEvent)
    {
        ChannelUninitializeEvent(Channel,
                                 RedrawEvent,
                                 SAC_CHANNEL_FLAG_REDRAW_EVENT);
    }

    /* All done */
    return STATUS_SUCCESS;
}

Referenced by ChannelClose(), and ChannelDestroy().

ChannelDestroy()

NTSTATUS NTAPI ChannelDestroy

(

IN PSAC_CHANNEL

Channel

)

Definition at line 77 of file channel.c.

{
    CHECK_PARAMETER(Channel);

    /* Same thing as dereferencing all the handles */
    return ChannelDereferenceHandles(Channel);
}

Referenced by RawChannelDestroy(), and VTUTF8ChannelDestroy().

ChannelGetApplicationType()

NTSTATUS NTAPI ChannelGetApplicationType	(	IN PSAC_CHANNEL	Channel,
		OUT PGUID	ApplicationType
	)

Definition at line 389 of file channel.c.

{
    CHECK_PARAMETER1(Channel);

    /* Read the application type GUID */
    ChannelLockAttributes(Channel);
    *ApplicationType = Channel->ApplicationType;
    ChannelUnlockAttributes(Channel);

    /* Always return success */
    return STATUS_SUCCESS;
}

ChannelGetDescription()

NTSTATUS NTAPI ChannelGetDescription	(	IN PSAC_CHANNEL	Channel,
		IN PWCHAR *	Description
	)

Definition at line 343 of file channel.c.

{
    CHECK_PARAMETER1(Channel);
    CHECK_PARAMETER2(Description);

    /* Allocate space to hold the description */
    *Description = SacAllocatePool(sizeof(Channel->DescriptionBuffer), GLOBAL_BLOCK_TAG);
    CHECK_ALLOCATION(*Description);

    /* Lock the attributes while we copy the name */
    ChannelLockAttributes(Channel);

    /* Copy the name and null-terminate it */
    ASSERT(((wcslen(Channel->DescriptionBuffer) + 1) * sizeof(WCHAR)) <= ((SAC_CHANNEL_DESCRIPTION_SIZE + 1) * sizeof(WCHAR)));
    wcsncpy(*Description, Channel->DescriptionBuffer, RTL_NUMBER_OF(Channel->DescriptionBuffer)); // bug
    (*Description)[SAC_CHANNEL_DESCRIPTION_SIZE] = UNICODE_NULL;

    /* Release the lock and return */
    ChannelUnlockAttributes(Channel);
    return STATUS_SUCCESS;
}

ChannelGetName()

NTSTATUS NTAPI ChannelGetName	(	IN PSAC_CHANNEL	Channel,
		OUT PWCHAR *	Name
	)

Definition at line 297 of file channel.c.

{
    CHECK_PARAMETER1(Channel);
    CHECK_PARAMETER2(Name);

    /* Allocate space to hold the name */
    *Name = SacAllocatePool(sizeof(Channel->NameBuffer), GLOBAL_BLOCK_TAG);
    CHECK_ALLOCATION(*Name);

    /* Lock the attributes while we copy the name */
    ChannelLockAttributes(Channel);

    /* Copy the name and null-terminate it */
    ASSERT(((wcslen(Channel->NameBuffer) + 1) * sizeof(WCHAR)) <= ((SAC_CHANNEL_NAME_SIZE + 1) * sizeof(WCHAR)));
    wcsncpy(*Name, Channel->NameBuffer, RTL_NUMBER_OF(Channel->NameBuffer)); // bug
    (*Name)[SAC_CHANNEL_NAME_SIZE] = UNICODE_NULL;

    /* Release the lock and return */
    ChannelUnlockAttributes(Channel);
    return STATUS_SUCCESS;
}

Referenced by ChanMgrGetChannelByName().

ChannelGetStatus()

NTSTATUS NTAPI ChannelGetStatus	(	IN PSAC_CHANNEL	Channel,
		OUT PSAC_CHANNEL_STATUS	ChannelStatus
	)

Definition at line 222 of file channel.c.

{
    CHECK_PARAMETER1(Channel);

    /* Read the status while holding the attribute lock */
    ChannelLockAttributes(Channel);
    *ChannelStatus = Channel->ChannelStatus;
    ChannelUnlockAttributes(Channel);
    return STATUS_SUCCESS;
}

Referenced by ChannelIsActive(), and ChannelIsClosed().

ChannelHasRedrawEvent()

NTSTATUS NTAPI ChannelHasRedrawEvent	(	IN PSAC_CHANNEL	Channel,
		OUT PBOOLEAN	Present
	)

Definition at line 209 of file channel.c.

{
    CHECK_PARAMETER1(Channel);
    CHECK_PARAMETER2(Present);

    /* Return if the flag is set */
    *Present = Channel->Flags & SAC_CHANNEL_FLAG_REDRAW_EVENT;
    return STATUS_SUCCESS;
}

Referenced by ConMgrDisplayCurrentChannel(), and ConMgrSetCurrentChannel().

ChannelIBufferLength()

ULONG NTAPI ChannelIBufferLength

(

IN PSAC_CHANNEL

Channel

)

Definition at line 163 of file channel.c.

{
    ULONG Length;

    /* Get the input buffer length while holding the lock */
    ChannelLockOBuffer(Channel);
    Length = Channel->ChannelInputBufferLength(Channel);
    ChannelUnlockOBuffer(Channel);
    return Length;
}

Referenced by ConMgrSerialPortConsumer().

ChannelInitializeVTable()

NTSTATUS NTAPI ChannelInitializeVTable

(

IN PSAC_CHANNEL

Channel

)

Definition at line 405 of file channel.c.

{
    /* What kind of channel is this? */
    switch (Channel->ChannelType)
    {
        case VtUtf8:
            /* Setup the calls for a VT-UTF8 channel */
            Channel->ChannelCreate = VTUTF8ChannelCreate;
            Channel->ChannelDestroy = VTUTF8ChannelDestroy;
            Channel->ChannelOutputFlush = VTUTF8ChannelOFlush;
            Channel->ChannelOutputEcho = VTUTF8ChannelOEcho;
            Channel->ChannelOutputWrite = VTUTF8ChannelOWrite;
            Channel->ChannelOutputRead = VTUTF8ChannelORead;
            Channel->ChannelInputWrite = VTUTF8ChannelIWrite;
            Channel->ChannelInputRead = VTUTF8ChannelIRead;
            Channel->ChannelInputReadLast = VTUTF8ChannelIReadLast;
            Channel->ChannelInputBufferIsFull = VTUTF8ChannelIBufferIsFull;
            Channel->ChannelInputBufferLength = VTUTF8ChannelIBufferLength;
            break;

        case Cmd:
            /* FIXME: TODO */
            ASSERT(FALSE);
            return STATUS_NOT_IMPLEMENTED;

        case Raw:

            /* Setup the calls for a raw channel */
            Channel->ChannelCreate = RawChannelCreate;
            Channel->ChannelDestroy = RawChannelDestroy;
            Channel->ChannelOutputFlush = RawChannelOFlush;
            Channel->ChannelOutputEcho = RawChannelOEcho;
            Channel->ChannelOutputWrite = RawChannelOWrite;
            Channel->ChannelOutputRead = RawChannelORead;
            Channel->ChannelInputWrite = RawChannelIWrite;
            Channel->ChannelInputRead = RawChannelIRead;
            Channel->ChannelInputReadLast = RawChannelIReadLast;
            Channel->ChannelInputBufferIsFull = RawChannelIBufferIsFull;
            Channel->ChannelInputBufferLength = RawChannelIBufferLength;
            break;

        default:
            /* Unsupported channel type */
            return STATUS_INVALID_PARAMETER;
    }

    /* If we got here, the channel was supported */
    return STATUS_SUCCESS;
}

Referenced by ChannelCreate().

ChannelIRead()

NTSTATUS NTAPI ChannelIRead	(	IN PSAC_CHANNEL	Channel,
		IN PCHAR	Buffer,
		IN ULONG	BufferSize,
		IN OUT PULONG	ResultBufferSize
	)

Definition at line 131 of file channel.c.

{
    NTSTATUS Status;

    /* Read the input buffer while holding the lock */
    ChannelLockIBuffer(Channel);
    Status = Channel->ChannelInputRead(Channel,
                                       Buffer,
                                       BufferSize,
                                       ResultBufferSize);
    ChannelUnlockIBuffer(Channel);
    return Status;
}

Referenced by ConMgrSerialPortConsumer().

ChannelIReadLast()

WCHAR NTAPI ChannelIReadLast

(

IN PSAC_CHANNEL

Channel

)

Definition at line 150 of file channel.c.

{
    WCHAR LastChar;

    /* Read the last character while holding the lock */
    ChannelLockIBuffer(Channel);
    LastChar = Channel->ChannelInputReadLast(Channel);
    ChannelUnlockIBuffer(Channel);
    return LastChar;
}

Referenced by ConMgrSerialPortConsumer().

ChannelIsActive()

BOOLEAN NTAPI ChannelIsActive

(

IN PSAC_CHANNEL

Channel

)

Definition at line 250 of file channel.c.

{
    SAC_CHANNEL_STATUS ChannelStatus;
    BOOLEAN IsActive;

    /* Get the status */
    if (!NT_SUCCESS(ChannelGetStatus(Channel, &ChannelStatus)))
    {
        /* We couldn't even do that, assume it's inactive */
        IsActive = FALSE;
    }
    else
    {
        /* Check if the status shows activity */
        IsActive = (ChannelStatus == Active);
    }

    /* Return the state */
    return IsActive;
}

Referenced by ChanMgrCloseChannel(), ChanMgrGetChannelCount(), ChanMgrGetNextActiveChannel(), ChanMgrReleaseChannel(), and ChannelDereferenceToZeroByIndex().

ChannelIsClosed()

BOOLEAN NTAPI ChannelIsClosed

(

IN PSAC_CHANNEL

Channel

)

Definition at line 273 of file channel.c.

{
    SAC_CHANNEL_STATUS ChannelStatus;
    BOOLEAN IsClosed;

    /* Get the status */
    if (!NT_SUCCESS(ChannelGetStatus(Channel, &ChannelStatus)))
    {
        /* We couldn't even do that, assume it's inactive */
        IsClosed = FALSE;
    }
    else
    {
        /* Check if the status shows activity */
        IsClosed = ((ChannelStatus == Inactive) &&
                    (Channel->ChannelHasNewOBufferData));
    }

    /* Return the state */
    return IsClosed;
}

ChannelIsEqual()

BOOLEAN NTAPI ChannelIsEqual	(	IN PSAC_CHANNEL	Channel,
		IN PSAC_CHANNEL_ID	ChannelId
	)

Definition at line 25 of file channel.c.

{
    /* Check if the GUIDs match */
    return IsEqualGUIDAligned(&Channel->ChannelId.ChannelGuid,
                              &ChannelId->ChannelGuid);
}

Referenced by ChanMgrGetByHandle(), and ConMgrIsWriteEnabled().

ChannelIsValidType()

BOOLEAN NTAPI ChannelIsValidType

(

IN SAC_CHANNEL_TYPE

ChannelType

)

Definition at line 17 of file channel.c.

{
    /* Check if the type is valid */
    return ((ChannelType >= VtUtf8) && (ChannelType <= Raw));
}

ChannelIWrite()

NTSTATUS NTAPI ChannelIWrite	(	IN PSAC_CHANNEL	Channel,
		IN PCHAR	Buffer,
		IN ULONG	BufferSize
	)

Definition at line 116 of file channel.c.

{
    NTSTATUS Status;

    /* Write into the input buffer while holding the lock */
    ChannelLockIBuffer(Channel);
    Status = Channel->ChannelInputWrite(Channel, Buffer, BufferSize);
    ChannelUnlockIBuffer(Channel);
    return Status;
}

Referenced by ConMgrSerialPortConsumer().

ChannelOFlush()

NTSTATUS NTAPI ChannelOFlush

(

IN PSAC_CHANNEL

Channel

)

Definition at line 103 of file channel.c.

{
    NTSTATUS Status;

    /* While holding the output lock, flush to the output buffer */
    ChannelLockOBuffer(Channel);
    Status = Channel->ChannelOutputFlush(Channel);
    ChannelUnlockOBuffer(Channel);
    return Status;
}

Referenced by ConMgrDisplayCurrentChannel().

ChannelOWrite()

NTSTATUS NTAPI ChannelOWrite	(	IN PSAC_CHANNEL	Channel,
		IN PCHAR	Buffer,
		IN ULONG	BufferSize
	)

Definition at line 87 of file channel.c.

{
    NTSTATUS Status;
    CHECK_PARAMETER3(BufferSize < SAC_OBUFFER_SIZE);

    /* While holding the output lock, write to the output buffer */
    ChannelLockOBuffer(Channel);
    Status = Channel->ChannelOutputWrite(Channel, Buffer, BufferSize);
    ChannelUnlockOBuffer(Channel);
    return Status;
}

Referenced by SacPutString().

ChannelSetDescription()

NTSTATUS NTAPI ChannelSetDescription	(	IN PSAC_CHANNEL	Channel,
		IN PWCHAR	Description
	)

Definition at line 368 of file channel.c.

{
    CHECK_PARAMETER1(Channel);
    CHECK_PARAMETER2(Description);

    /* Lock the attributes while we copy the name */
    ChannelLockAttributes(Channel);

    /* Copy the name and null-terminate it */
    ASSERT(((wcslen(Description) + 1) * sizeof(WCHAR)) <= ((SAC_CHANNEL_NAME_SIZE + 1) * sizeof(WCHAR)));
    wcsncpy(Channel->DescriptionBuffer, Description, RTL_NUMBER_OF(Channel->DescriptionBuffer)); // bug
    Channel->DescriptionBuffer[SAC_CHANNEL_DESCRIPTION_SIZE] = UNICODE_NULL;

    /* Release the lock and return */
    ChannelUnlockAttributes(Channel);
    return STATUS_SUCCESS;
}

Referenced by ChannelCreate().

ChannelSetLockEvent()

NTSTATUS NTAPI ChannelSetLockEvent

(

IN PSAC_CHANNEL

Channel

)

Definition at line 187 of file channel.c.

{
    NTSTATUS Status;

    /* Set the event */
    ChannelSetEvent(Channel, LockEvent);
    return Status;
}

ChannelSetName()

NTSTATUS NTAPI ChannelSetName	(	IN PSAC_CHANNEL	Channel,
		IN PWCHAR	Name
	)

Definition at line 322 of file channel.c.

{
    CHECK_PARAMETER1(Channel);
    CHECK_PARAMETER2(Name);

    /* Lock the attributes while we copy the name */
    ChannelLockAttributes(Channel);

    /* Copy the name and null-terminate it */
    ASSERT(((wcslen(Name) + 1) * sizeof(WCHAR)) <= ((SAC_CHANNEL_NAME_SIZE + 1) * sizeof(WCHAR)));
    wcsncpy(Channel->NameBuffer, Name, RTL_NUMBER_OF(Channel->NameBuffer)); // bug
    Channel->NameBuffer[SAC_CHANNEL_NAME_SIZE] = UNICODE_NULL;

    /* Release the lock and return */
    ChannelUnlockAttributes(Channel);
    return STATUS_SUCCESS;
}

Referenced by ChannelCreate().

ChannelSetRedrawEvent()

NTSTATUS NTAPI ChannelSetRedrawEvent

(

IN PSAC_CHANNEL

Channel

)

Definition at line 176 of file channel.c.

{
    NTSTATUS Status;

    /* Set the event */
    ChannelSetEvent(Channel, RedrawEvent);
    return Status;
}

Referenced by ConMgrDisplayCurrentChannel().

ChannelSetStatus()

NTSTATUS NTAPI ChannelSetStatus	(	IN PSAC_CHANNEL	Channel,
		IN SAC_CHANNEL_STATUS	ChannelStatus
	)

Definition at line 236 of file channel.c.

{
    CHECK_PARAMETER1(Channel);

    /* Read the status while holding the attribute lock */
    ChannelLockAttributes(Channel);
    Channel->ChannelStatus = ChannelStatus;
    ChannelUnlockAttributes(Channel);
    return STATUS_SUCCESS;
}

Referenced by ChannelClose(), and ChannelCreate().