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85 lines
1.5 KiB
85 lines
1.5 KiB
/*++
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Copyright (c) 1999-2000 Microsoft Corporation
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Module Name:
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drfile
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Abstract:
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This module provides generic device/file handle operation
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Author:
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Joy Chik 11/1/99
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Revision History:
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--*/
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#include <precom.h>
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#define TRC_FILE "DrFile"
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#include "drfile.h"
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#include "drdev.h"
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#ifdef OS_WINCE
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#include "filemgr.h"
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#endif
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///////////////////////////////////////////////////////////////
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//
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// DrFile Members
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//
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DrFile::DrFile(DrDevice *Device, ULONG FileId, DRFILEHANDLE FileHandle) {
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DC_BEGIN_FN("DrFile::DrFile");
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ASSERT(Device != NULL);
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_FileId = FileId;
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_FileHandle = FileHandle;
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_Device = Device;
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DC_END_FN();
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}
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DrFile::~DrFile() {
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DC_BEGIN_FN("DrFile::~DrFile")
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ASSERT(_FileHandle == INVALID_HANDLE_VALUE);
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DC_END_FN();
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}
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ULONG DrFile::GetDeviceType() {
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return _Device->GetDeviceType();
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}
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BOOL DrFile::Close() {
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DC_BEGIN_FN("DrFile::Close");
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if (_FileHandle != INVALID_HANDLE_VALUE) {
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#ifndef OS_WINCE
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if (CloseHandle(_FileHandle)) {
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#else
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if (CECloseHandle(_FileHandle)) {
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#endif
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_FileHandle = INVALID_HANDLE_VALUE;
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return TRUE;
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} else {
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TRC_ERR((TB, _T("Close returned %ld."), GetLastError()));
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_FileHandle = INVALID_HANDLE_VALUE;
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return FALSE;
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}
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} else {
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//
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// No need to close the handle
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//
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return TRUE;
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}
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DC_END_FN();
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}
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