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FN_VMB_PACKET_ALLOCATE callback function (vmbuskernelmodeclientlibapi.h)

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The VmbPacketAllocate function allocates a packet from the channel's lookaside list.

Syntax

FN_VMB_PACKET_ALLOCATE FnVmbPacketAllocate;

VMBPACKET FnVmbPacketAllocate(
  VMBCHANNEL Channel
)
{...}

Parameters

Channel

A handle for a channel.

Return value

VmbPacketAllocate returns a pointer to an allocated VMBus packet object or null.

Remarks

The default completion routine of a packet automatically releases the packet. If the packet is not sent or if the completion routine is changed, the client should call the VmbPacketFree function to release the packet.

Important

This function is called through the VMBus Kernel Mode Client Library (KMCL) interface, provided by the Vmbkmcl.sys bus driver. This is a client function accessed from the KMCL_CLIENT_INTERFACE_V1 structure.

For more information, see the Remarks section of the KMCL_CLIENT_INTERFACE_V1.

Requirements

Requirement Value
Minimum supported client Windows 10, version 1803
Header vmbuskernelmodeclientlibapi.h

See also

VmbPacketFree