// Token: 0x06000CAC RID: 3244 RVA: 0x0006EAE4 File Offset: 0x0006CCE4
public static TempFileStream CreateInstance(string prefix, bool deleteOnClose)
{
NativeMethods.SecurityAttributes securityAttributes = new NativeMethods.SecurityAttributes(false);
string path = TempFileStream.Path;
new FileIOPermission(FileIOPermissionAccess.Write, path).Demand();
int num = 0;
int num2 = 10;
string filename;
SafeFileHandle safeFileHandle;
for (;;)
{
filename = System.IO.Path.Combine(path, prefix + ((uint)Interlocked.Increment(ref TempFileStream.nextId)).ToString("X5") + ".tmp");
uint num3 = deleteOnClose ? 67108864U : 0U;
safeFileHandle = NativeMethods.CreateFile(filename, 1180063U, 0U, ref securityAttributes, 1U, 256U | num3 | 8192U, IntPtr.Zero);
num2--;
if (safeFileHandle.IsInvalid)
{
num = Marshal.GetLastWin32Error();
if (num == 80)
{
num2++;
}
using (Process currentProcess = Process.GetCurrentProcess())
{
Interlocked.Add(ref TempFileStream.nextId, currentProcess.Id);
goto IL_CB;
}
goto IL_C8;
}
goto IL_C8;
IL_CB:
if (num2 <= 0)
{
break;
}
continue;
IL_C8:
num2 = 0;
goto IL_CB;
}
if (safeFileHandle.IsInvalid)
{
string message = SharedStrings.CreateFileFailed(filename);
throw new IOException(message, new Win32Exception(num, message));
}
return(new TempFileStream(safeFileHandle)
{
filePath = filename
});
}
internal static extern SafeFileHandle CreateFile([In] string filename, [In] uint accessMode, [In] uint shareMode, ref NativeMethods.SecurityAttributes securityAttributes, [In] uint creationDisposition, [In] uint flags, [In] IntPtr templateFileHandle);
public static TempFileStream CreateInstance(string prefix, bool deleteOnClose)
{
var securityAttribute = new NativeMethods.SecurityAttributes(false);
var tempPath = Path;
new FileIOPermission(FileIOPermissionAccess.Write, tempPath).Demand();
SafeFileHandle safeHandle;
string tempFile;
var errorCode = 0;
var retry = 10;
do
{
var id = (uint)Interlocked.Increment(ref NextId);
tempFile =
System.IO.Path.Combine(
tempPath,
string.Concat(prefix, id.ToString("X5"), ".tmp"));
var deleteOnCloseFlag = (deleteOnClose) ? NativeMethods.FILE_FLAG_DELETE_ON_CLOSE : 0;
safeHandle = NativeMethods.CreateFile(
tempFile,
NativeMethods.FILE_GENERIC_READ | NativeMethods.FILE_GENERIC_WRITE,
0,
ref securityAttribute,
NativeMethods.CREATE_NEW,
NativeMethods.FILE_ATTRIBUTE_TEMPORARY | deleteOnCloseFlag | NativeMethods.FILE_ATTRIBUTE_NOT_CONTENT_INDEXED,
IntPtr.Zero);
retry--;
if (safeHandle.IsInvalid)
{
errorCode = Marshal.GetLastWin32Error();
if (errorCode == NativeMethods.ERROR_FILE_EXISTS)
{
retry++;
}
Interlocked.Add(ref NextId, Process.GetCurrentProcess().Id);
}
else
{
retry = 0;
}
}while (retry > 0);
if (safeHandle.IsInvalid)
{
var message = Strings.CreateFileFailed(tempFile);
throw new IOException(message, new Win32Exception(errorCode, message));
}
var tempFileStream = new TempFileStream(safeHandle);
tempFileStream.filePath = tempFile;
return(tempFileStream);
}