// Token: 0x06001148 RID: 4424 RVA: 0x00046B80 File Offset: 0x00044D80
private EseDatabasePatchFileIO(string edbFilePath, EseDatabasePatchState header, bool readOnly, bool skipIO)
{
this.m_fReadOnly = readOnly;
this.m_fSkipIO = skipIO;
this.m_header = header;
this.m_patchFileNameInProgress = edbFilePath + ".patch-progress";
this.m_patchFileNameDone = edbFilePath + ".patch-done";
if (!skipIO)
{
if (this.m_fReadOnly)
{
EseDatabasePatchFileIO.Tracer.TraceDebug <string>((long)this.GetHashCode(), "EseDatabasePatchFileIO: Opening the completed patch file in read-only mode: {0}", this.m_patchFileNameDone);
this.m_fileStream = File.OpenRead(this.m_patchFileNameDone);
return;
}
if (File.Exists(this.m_patchFileNameDone))
{
EseDatabasePatchFileIO.Tracer.TraceDebug <string>((long)this.GetHashCode(), "EseDatabasePatchFileIO: Re-opening the completed patch file in write-mode: {0}", this.m_patchFileNameDone);
this.m_fileStream = File.Open(this.m_patchFileNameDone, FileMode.Open, FileAccess.ReadWrite, FileShare.None);
return;
}
if (File.Exists(this.m_patchFileNameInProgress))
{
EseDatabasePatchFileIO.Tracer.TraceDebug <string>((long)this.GetHashCode(), "EseDatabasePatchFileIO: Re-opening the in-progress patch file in write-mode: {0}", this.m_patchFileNameInProgress);
this.m_fileStream = File.Open(this.m_patchFileNameInProgress, FileMode.Open, FileAccess.ReadWrite, FileShare.None);
return;
}
EseDatabasePatchFileIO.Tracer.TraceDebug <string>((long)this.GetHashCode(), "EseDatabasePatchFileIO: Creating the in-progress patch file: {0}", this.m_patchFileNameInProgress);
this.m_fileStream = File.Open(this.m_patchFileNameInProgress, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
}
}
// Token: 0x0600113B RID: 4411 RVA: 0x000465D4 File Offset: 0x000447D4
public static EseDatabasePatchFileIO OpenWrite(string edbFilePath, EseDatabasePatchState header)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
return(new EseDatabasePatchFileIO(edbFilePath, header, false, false));
}
// Token: 0x06001142 RID: 4418 RVA: 0x000466F8 File Offset: 0x000448F8
public EseDatabasePatchState ReadHeader()
{
this.AssertReadOperationValid();
EseDatabasePatchState eseDatabasePatchState = null;
this.SeekToStart();
byte[] array = new byte[32768L];
this.ReadFromFile(array, array.Length);
int num = 0;
int num2 = BitConverter.ToInt32(array, num);
num += 4;
if (num2 > array.Length - 4 || num2 <= 0)
{
EseDatabasePatchFileIO.Tracer.TraceError <int, int>((long)this.GetHashCode(), "ReadHeader(): Serialized header state in bytes ({0}) is invalid. Must be >=0 and < pre-allocated fixed byte size of {1} bytes.", num2, array.Length);
throw new PagePatchInvalidFileException(this.m_fileStream.Name);
}
byte[] array2 = new byte[num2];
Array.Copy(array, num, array2, 0, num2);
Exception ex = null;
try
{
eseDatabasePatchState = SerializationServices.Deserialize <EseDatabasePatchState>(array2);
}
catch (SerializationException ex2)
{
ex = ex2;
}
catch (TargetInvocationException ex3)
{
ex = ex3;
}
catch (DecoderFallbackException ex4)
{
ex = ex4;
}
if (ex != null)
{
EseDatabasePatchFileIO.Tracer.TraceError <Exception>((long)this.GetHashCode(), "ReadHeader deserialize failed: {0}", ex);
throw new PagePatchInvalidFileException(this.m_fileStream.Name, ex);
}
this.m_header = eseDatabasePatchState;
return(eseDatabasePatchState);
}
