reactos/ntoskrnl/lpc/listen.c

62 lines
1.5 KiB
C

/*
* PROJECT: ReactOS Kernel
* LICENSE: GPL - See COPYING in the top level directory
* FILE: ntoskrnl/lpc/listen.c
* PURPOSE: Local Procedure Call: Listening
* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
*/
/* INCLUDES ******************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
/* PUBLIC FUNCTIONS **********************************************************/
/*
* @implemented
*/
NTSTATUS
NTAPI
NtListenPort(IN HANDLE PortHandle,
OUT PPORT_MESSAGE ConnectMessage)
{
NTSTATUS Status;
PAGED_CODE();
LPCTRACE(LPC_LISTEN_DEBUG, "Handle: %p\n", PortHandle);
/* Wait forever for a connection request */
for (;;)
{
/* Do the wait */
Status = NtReplyWaitReceivePort(PortHandle,
NULL,
NULL,
ConnectMessage);
_SEH2_TRY
{
/* Accept only LPC_CONNECTION_REQUEST requests */
if ((Status != STATUS_SUCCESS) ||
(LpcpGetMessageType(ConnectMessage) == LPC_CONNECTION_REQUEST))
{
/* Break out */
_SEH2_YIELD(break);
}
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
_SEH2_YIELD(break);
}
_SEH2_END;
}
/* Return status */
return Status;
}
/* EOF */