FreeRDP/winpr/libwinpr/handle/nonehandle.c
2014-12-02 00:27:30 -08:00

75 lines
1.8 KiB
C

/**
* WinPR: Windows Portable Runtime
* NoneHandle a.k.a. brathandle should be used where a handle is needed, but
* functionality is not implemented yet or not implementable.
*
* Copyright 2014 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "nonehandle.h"
#ifndef _WIN32
#include <pthread.h>
static HANDLE_CLOSE_CB _NoneHandleCloseCb;
static pthread_once_t none_initialized = PTHREAD_ONCE_INIT;
static BOOL NoneHandleCloseHandle(HANDLE handle)
{
WINPR_NONE_HANDLE* none = (WINPR_NONE_HANDLE*) handle;
free(none);
return TRUE;
}
static BOOL NoneHandleIsHandle(HANDLE handle)
{
WINPR_NONE_HANDLE* none = (WINPR_NONE_HANDLE*) handle;
if (!none || none->Type != HANDLE_TYPE_NONE)
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
return TRUE;
}
static void NoneHandleInitialize(void)
{
_NoneHandleCloseCb.IsHandled = NoneHandleIsHandle;
_NoneHandleCloseCb.CloseHandle = NoneHandleCloseHandle;
RegisterHandleCloseCb(&_NoneHandleCloseCb);
}
HANDLE CreateNoneHandle()
{
WINPR_NONE_HANDLE* none;
none = (WINPR_NONE_HANDLE*) calloc(1, sizeof(WINPR_NONE_HANDLE));
if (!none)
return NULL;
pthread_once(&none_initialized, NoneHandleInitialize);
return (HANDLE)none;
}
#endif