audk/StdLib/BsdSocketLib/poll.c

59 lines
1.4 KiB
C

/** @file
Implement the poll API.
Copyright (c) 2011, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <SocketInternals.h>
/**
Poll the socket for activity
@param [in] pDescriptor Descriptor address for the file
@param [in] Events Mask of events to detect
@return Detected events for the socket
**/
short
EFIAPI
BslSocketPoll (
IN struct __filedes * pDescriptor,
IN short Events
)
{
short DetectedEvents;
EFI_SOCKET_PROTOCOL * pSocketProtocol;
EFI_STATUS Status;
//
// Locate the socket protocol
//
DetectedEvents = 0;
pSocketProtocol = BslValidateSocketFd ( pDescriptor, &errno );
if ( NULL != pSocketProtocol ) {
//
// Poll the socket
//
Status = pSocketProtocol->pfnPoll ( pSocketProtocol,
Events,
&DetectedEvents,
&errno );
}
//
// Return the detected events
//
return DetectedEvents;
}