reactos/dll/win32/ws2help/apc.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS WinSock 2 DLL
* FILE: include/ws2_32.h
* PURPOSE: WinSock 2 DLL header
*/
/* INCLUDES ******************************************************************/
#include "precomp.h"
/* DATA **********************************************************************/
#define APCH (HANDLE)'SOR '
/* FUNCTIONS *****************************************************************/
DWORD
WINAPI
WahOpenApcHelper(OUT PHANDLE ApcHelperHandle)
{
DWORD ErrorCode;
/* Enter the prolog, make sure we're initialized */
ErrorCode = WS2HELP_PROLOG();
if (ErrorCode != ERROR_SUCCESS) return ErrorCode;
/* Validate handle */
if (!ApcHelperHandle) return ERROR_INVALID_PARAMETER;
/*
* Return a bogus handle ("ROS")
* Historical note:(MS sends "CKM", which probably stands for "Keith Moore"
* (KM), one of the core architects of Winsock 2.2 from Microsoft.
*/
*ApcHelperHandle = APCH;
return ERROR_SUCCESS;
}
DWORD
WINAPI
WahCloseApcHelper(IN HANDLE ApcHelperHandle)
{
DWORD ErrorCode;
/* Enter the prolog, make sure we're initialized */
ErrorCode = WS2HELP_PROLOG();
if (ErrorCode != ERROR_SUCCESS) return ErrorCode;
/* Validate handle */
if (ApcHelperHandle != APCH) return ERROR_INVALID_PARAMETER;
/* return */
return ERROR_SUCCESS;
}
DWORD
WINAPI
WahCloseThread(IN HANDLE ApcHelperHandle,
IN LPWSATHREADID ThreadId)
{
DWORD ErrorCode;
/* Enter the prolog, make sure we're initialized */
ErrorCode = WS2HELP_PROLOG();
if (ErrorCode != ERROR_SUCCESS) return ErrorCode;
/* Validate handles */
if ((ApcHelperHandle != APCH) || (!ThreadId) || (!ThreadId->ThreadHandle))
{
/* Invalid helper/thread handles */
return ERROR_INVALID_PARAMETER;
}
/* Close the thread handle */
if (CloseHandle(ThreadId->ThreadHandle))
{
/* Clear the sturcture */
ThreadId->ThreadHandle = NULL;
ThreadId->Reserved = 0;
return NO_ERROR;
}
/* return */
return GetLastError();
}
INT
WINAPI
WahQueueUserApc(IN HANDLE ApcHelperHandle,
IN LPWSATHREADID ThreadId,
IN LPWSAUSERAPC ApcRoutine,
IN PVOID ApcContext OPTIONAL)
{
/* Validate params */
if ((ApcHelperHandle != APCH) ||
(!ThreadId) ||
(!ThreadId->ThreadHandle) ||
(!ApcRoutine))
{
/* Invalid parameters */
return ERROR_INVALID_PARAMETER;
}
/* Queue the APC */
if (QueueUserAPC(ApcRoutine, ThreadId->ThreadHandle, (ULONG_PTR)ApcContext))
{
/* Return success */
return ERROR_SUCCESS;
}
/* Fail */
return GetLastError();
}
DWORD
WINAPI
WahOpenCurrentThread(IN HANDLE ApcHelperHandle,
OUT LPWSATHREADID ThreadId)
{
HANDLE ProcessHandle, ThreadHandle;
/* Validate params */
if ((ApcHelperHandle != APCH) || (!ThreadId))
{
/* Invalid parameters */
return ERROR_INVALID_PARAMETER;
}
/* Get the process/thread handles */
ProcessHandle = GetCurrentProcess();
ThreadHandle = GetCurrentThread();
/* Duplicate the handle */
if (DuplicateHandle(ProcessHandle,
ThreadHandle,
ProcessHandle,
&ThreadId->ThreadHandle,
0,
FALSE,
DUPLICATE_SAME_ACCESS))
{
/* Save the thread handle and return */
ThreadId->Reserved = (DWORD_PTR)ThreadHandle;
return ERROR_SUCCESS;
}
/* Fail */
return GetLastError();
}
/* EOF */