// Token: 0x06002221 RID: 8737 RVA: 0x0009F690 File Offset: 0x0009D890
public static SafeFileHandle OpenFile(string filename, bool openForRead, out int lastError, bool cachedIo)
{
FileMode fileMode;
FileShare fileShare;
FileAccess fileAccess;
if (openForRead)
{
fileMode = FileMode.Open;
fileShare = FileShare.Read;
fileAccess = FileAccess.Read;
}
else
{
fileMode = FileMode.Create;
fileShare = FileShare.None;
fileAccess = FileAccess.Write;
}
FileFlags fileFlags;
if (cachedIo)
{
fileFlags = FileFlags.FILE_ATTRIBUTE_NORMAL;
}
else
{
fileFlags = FileFlags.FILE_FLAG_NO_BUFFERING;
}
if (RegistryParameters.LogCopyBufferedIo != 0)
{
fileFlags = FileFlags.FILE_ATTRIBUTE_NORMAL;
}
return(LogCopy.LogCopyCreateFile(filename, fileAccess, fileShare, fileMode, fileFlags, out lastError));
}
internal static void TruncateFile(string fileName, long fileSize)
{
int num;
using (SafeFileHandle safeFileHandle = LogCopy.LogCopyCreateFile(fileName, FileAccess.Write, FileShare.None, FileMode.Open, FileFlags.FILE_ATTRIBUTE_NORMAL, out num))
{
long num2;
NativeMethods.SetFilePointerEx(safeFileHandle, fileSize, out num2, 0U);
NativeMethods.SetEndOfFile(safeFileHandle);
}
}
// Token: 0x06002223 RID: 8739 RVA: 0x0009F760 File Offset: 0x0009D960
public static SafeFileHandle OpenLogForRead(string filename)
{
int num = 0;
int num2 = 300;
Exception ex = null;
ExDateTime?exDateTime = null;
FileFlags fileFlags = FileFlags.FILE_FLAG_NO_BUFFERING;
if (RegistryParameters.LogCopyBufferedIo != 0)
{
fileFlags = FileFlags.FILE_ATTRIBUTE_NORMAL;
}
for (;;)
{
int num3 = 0;
try
{
return(LogCopy.LogCopyCreateFile(filename, FileAccess.Read, FileShare.Read, FileMode.Open, fileFlags, out num3));
}
catch (IOException ex2)
{
ex = ex2;
if (num3 == 32)
{
if (num++ == 0)
{
exDateTime = new ExDateTime?(ExDateTime.Now.AddSeconds((double)RegistryParameters.FileInUseRetryLimitInSecs));
}
else
{
if (exDateTime.Value <= ExDateTime.Now)
{
break;
}
num2 = 1000;
}
ExTraceGlobals.LogCopyTracer.TraceError <string, int>(0L, "OpenLogForRead({0}) caught sharing violation. Will retry in {1}ms", filename, num2);
Thread.Sleep(num2);
continue;
}
}
break;
}
ExTraceGlobals.LogCopyTracer.TraceError <string, Exception>(0L, "OpenLogForRead({0}) failed: {1}", filename, ex);
throw ex;
}