Differential D580 Diff 1484 src/leveldb/util/env_win.cc

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src/leveldb/util/env_win.cc

// This file contains source that originates from:		// This file contains source that originates from:
// http://code.google.com/p/leveldbwin/source/browse/trunk/win32_impl_src/env_win32.h		// http://code.google.com/p/leveldbwin/source/browse/trunk/win32_impl_src/env_win32.h
// http://code.google.com/p/leveldbwin/source/browse/trunk/win32_impl_src/port_win32.cc		// http://code.google.com/p/leveldbwin/source/browse/trunk/win32_impl_src/port_win32.cc
// Those files dont' have any explict license headers but the		// Those files don't have any explicit license headers but the
// project (http://code.google.com/p/leveldbwin/) lists the 'New BSD License'		// project (http://code.google.com/p/leveldbwin/) lists the 'New BSD License'
// as the license.		// as the license.
#if defined(LEVELDB_PLATFORM_WINDOWS)		#if defined(LEVELDB_PLATFORM_WINDOWS)
#include <map>		#include <map>


#include "leveldb/env.h"		#include "leveldb/env.h"

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}		}

BOOL Win32SequentialFile::_Init()		BOOL Win32SequentialFile::_Init()
{		{
std::wstring path;		std::wstring path;
ToWidePath(_filename, path);		ToWidePath(_filename, path);
_hFile = CreateFileW(path.c_str(),		_hFile = CreateFileW(path.c_str(),
GENERIC_READ,		GENERIC_READ,
FILE_SHARE_READ,		FILE_SHARE_READ \| FILE_SHARE_WRITE,
NULL,		NULL,
OPEN_EXISTING,		OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,		FILE_ATTRIBUTE_NORMAL \| FILE_FLAG_SEQUENTIAL_SCAN,
NULL);		NULL);
		if (_hFile == INVALID_HANDLE_VALUE)
		_hFile = NULL;
return _hFile ? TRUE : FALSE;		return _hFile ? TRUE : FALSE;
}		}

void Win32SequentialFile::_CleanUp()		void Win32SequentialFile::_CleanUp()
{		{
if(_hFile){		if(_hFile){
CloseHandle(_hFile);		CloseHandle(_hFile);
_hFile = NULL;		_hFile = NULL;
Show All 27 Lines	else
*result = Slice(scratch,hasRead);		*result = Slice(scratch,hasRead);
return sRet;		return sRet;
}		}

BOOL Win32RandomAccessFile::_Init( LPCWSTR path )		BOOL Win32RandomAccessFile::_Init( LPCWSTR path )
{		{
BOOL bRet = FALSE;		BOOL bRet = FALSE;
if(!_hFile)		if(!_hFile)
_hFile = ::CreateFileW(path,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,		_hFile = ::CreateFileW(path,GENERIC_READ,FILE_SHARE_READ\|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL \| FILE_FLAG_RANDOM_ACCESS,NULL);		FILE_ATTRIBUTE_NORMAL \| FILE_FLAG_RANDOM_ACCESS,NULL);
if(!_hFile \|\| _hFile == INVALID_HANDLE_VALUE )		if(!_hFile \|\| _hFile == INVALID_HANDLE_VALUE )
_hFile = NULL;		_hFile = NULL;
else		else
bRet = TRUE;		bRet = TRUE;
return bRet;		return bRet;
}		}

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Status Win32Env::GetFileSize( const std::string& fname, uint64_t* file_size )		Status Win32Env::GetFileSize( const std::string& fname, uint64_t* file_size )
{		{
Status sRet;		Status sRet;
std::string path = fname;		std::string path = fname;
std::wstring wpath;		std::wstring wpath;
ToWidePath(ModifyPath(path), wpath);		ToWidePath(ModifyPath(path), wpath);

HANDLE file = ::CreateFileW(wpath.c_str(),		HANDLE file = ::CreateFileW(wpath.c_str(),
GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);		GENERIC_READ,FILE_SHARE_READ\|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
LARGE_INTEGER li;		LARGE_INTEGER li;
if(::GetFileSizeEx(file,&li)){		if(::GetFileSizeEx(file,&li)){
*file_size = (uint64_t)li.QuadPart;		*file_size = (uint64_t)li.QuadPart;
}else		}else
sRet = Status::IOError(path,"Could not get the file size.");		sRet = Status::IOError(path,"Could not get the file size.");
CloseHandle(file);		CloseHandle(file);
return sRet;		return sRet;
}		}
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