| private SyncReleaseUnmanagedStructures ( ) : void | ||
| return | void | |
/// <summary>
/// Sends the file <paramref name="fileName"/> and buffers of data to a connected <see cref="T:System.Net.Sockets.Socket"/> object using the specified <see cref="T:System.Net.Sockets.TransmitFileOptions"/> value.
/// </summary>
/// <param name="fileName">A <see cref="T:System.String"/> that contains the path and name of the file to be sent. This parameter can be null. </param><param name="preBuffer">A <see cref="T:System.Byte"/> array that contains data to be sent before the file is sent. This parameter can be null. </param><param name="postBuffer">A <see cref="T:System.Byte"/> array that contains data to be sent after the file is sent. This parameter can be null. </param><param name="flags">One or more of <see cref="T:System.Net.Sockets.TransmitFileOptions"/> values. </param><exception cref="T:System.NotSupportedException">The operating system is not Windows NT or later.- or - The socket is not connected to a remote host. </exception><exception cref="T:System.ObjectDisposedException">The <see cref="T:System.Net.Sockets.Socket"/> object has been closed. </exception><exception cref="T:System.InvalidOperationException">The <see cref="T:System.Net.Sockets.Socket"/> object is not in blocking mode and cannot accept this synchronous call. </exception><exception cref="T:System.IO.FileNotFoundException">The file <paramref name="fileName"/> was not found. </exception><exception cref="T:System.Net.Sockets.SocketException">An error occurred when attempting to access the socket. See the Remarks section for more information. </exception>
public void SendFile(string fileName, byte[] preBuffer, byte[] postBuffer, TransmitFileOptions flags)
{
if (Socket.s_LoggingEnabled)
Logging.Enter(Logging.Sockets, (object) this, "SendFile", "");
if (this.CleanedUp)
throw new ObjectDisposedException(this.GetType().FullName);
if (!this.Connected)
throw new NotSupportedException(SR.GetString("net_notconnected"));
this.ValidateBlockingMode();
TransmitFileOverlappedAsyncResult overlappedAsyncResult = new TransmitFileOverlappedAsyncResult(this);
FileStream fileStream = (FileStream) null;
if (fileName != null && fileName.Length > 0)
fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
SafeHandle fileHandle = (SafeHandle) null;
if (fileStream != null)
{
ExceptionHelper.UnmanagedPermission.Assert();
try
{
fileHandle = (SafeHandle) fileStream.SafeFileHandle;
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
SocketError socketError = SocketError.Success;
try
{
overlappedAsyncResult.SetUnmanagedStructures(preBuffer, postBuffer, fileStream, TransmitFileOptions.UseDefaultWorkerThread, true);
if ((fileHandle != null ? (!UnsafeNclNativeMethods.OSSOCK.TransmitFile_Blocking(this.m_Handle.DangerousGetHandle(), fileHandle, 0, 0, (SafeHandle) SafeNativeOverlapped.Zero, overlappedAsyncResult.TransmitFileBuffers, flags) ? 1 : 0) : (!UnsafeNclNativeMethods.OSSOCK.TransmitFile_Blocking2(this.m_Handle.DangerousGetHandle(), IntPtr.Zero, 0, 0, (SafeHandle) SafeNativeOverlapped.Zero, overlappedAsyncResult.TransmitFileBuffers, flags) ? 1 : 0)) != 0)
socketError = (SocketError) Marshal.GetLastWin32Error();
}
finally
{
overlappedAsyncResult.SyncReleaseUnmanagedStructures();
}
if (socketError != SocketError.Success)
{
SocketException socketException = new SocketException(socketError);
this.UpdateStatusAfterSocketError(socketException);
if (Socket.s_LoggingEnabled)
Logging.Exception(Logging.Sockets, (object) this, "SendFile", (Exception) socketException);
throw socketException;
}
else
{
if ((overlappedAsyncResult.Flags & (TransmitFileOptions.Disconnect | TransmitFileOptions.ReuseSocket)) != TransmitFileOptions.UseDefaultWorkerThread)
{
this.SetToDisconnected();
this.m_RemoteEndPoint = (EndPoint) null;
}
if (!Socket.s_LoggingEnabled)
return;
Logging.Exit(Logging.Sockets, (object) this, "SendFile", (object) socketError);
}
}
public void SendFile(string fileName, byte[] preBuffer, byte[] postBuffer, TransmitFileOptions flags) {
if(s_LoggingEnabled)Logging.Enter(Logging.Sockets, this, "SendFile", "");
if (CleanedUp) {
throw new ObjectDisposedException(this.GetType().FullName);
}
if (!Connected) {
throw new NotSupportedException(SR.GetString(SR.net_notconnected));
}
ValidateBlockingMode();
GlobalLog.Print("Socket#" + ValidationHelper.HashString(this) + "::SendFile() SRC:" + ValidationHelper.ToString(LocalEndPoint) + " DST:" + ValidationHelper.ToString(RemoteEndPoint) + " fileName:" + fileName);
TransmitFileOverlappedAsyncResult asyncResult = new TransmitFileOverlappedAsyncResult(this);
FileStream fileStream = null;
if (fileName != null && fileName.Length>0) {
fileStream = new FileStream(fileName,FileMode.Open,FileAccess.Read,FileShare.Read);
}
SafeHandle fileHandle = null;
if (fileStream != null) {
ExceptionHelper.UnmanagedPermission.Assert();
try {
fileHandle = fileStream.SafeFileHandle;
}
finally {
SecurityPermission.RevertAssert();
}
}
SocketError errorCode = SocketError.Success;
try {
asyncResult.SetUnmanagedStructures(preBuffer, postBuffer, fileStream, 0, true);
// This can throw ObjectDisposedException.
if (fileHandle != null ?
!UnsafeNclNativeMethods.OSSOCK.TransmitFile_Blocking(m_Handle.DangerousGetHandle(), fileHandle, 0, 0, SafeNativeOverlapped.Zero, asyncResult.TransmitFileBuffers, flags) :
!UnsafeNclNativeMethods.OSSOCK.TransmitFile_Blocking2(m_Handle.DangerousGetHandle(), IntPtr.Zero, 0, 0, SafeNativeOverlapped.Zero, asyncResult.TransmitFileBuffers, flags))
{
errorCode = (SocketError) Marshal.GetLastWin32Error();
}
}
finally {
asyncResult.SyncReleaseUnmanagedStructures();
}
#if TRAVE
try
{
GlobalLog.Print("Socket#" + ValidationHelper.HashString(this) + "::SendFile() SRC:" + ValidationHelper.ToString(LocalEndPoint) + " DST:" + ValidationHelper.ToString(RemoteEndPoint) + " UnsafeNclNativeMethods.OSSOCK.TransmitFile returns errorCode:" + errorCode);
}
catch (ObjectDisposedException) { }
#endif
//
// if the native call fails we'll throw a SocketException
//
if (errorCode!=SocketError.Success) {
//
// update our internal state after this socket error and throw
//
SocketException socketException = new SocketException(errorCode);
UpdateStatusAfterSocketError(socketException);
if(s_LoggingEnabled)Logging.Exception(Logging.Sockets, this, "SendFile", socketException);
throw socketException;
}
if ((asyncResult.Flags & (TransmitFileOptions.Disconnect | TransmitFileOptions.ReuseSocket) )!=0) {
SetToDisconnected();
m_RemoteEndPoint = null;
}
if(s_LoggingEnabled)Logging.Exit(Logging.Sockets, this, "SendFile", errorCode);
return;
}
public void SendFile(string fileName, byte[] preBuffer, byte[] postBuffer, TransmitFileOptions flags)
{
if (s_LoggingEnabled)
{
Logging.Enter(Logging.Sockets, this, "SendFile", "");
}
if (this.CleanedUp)
{
throw new ObjectDisposedException(base.GetType().FullName);
}
if (!ComNetOS.IsWinNt)
{
throw new PlatformNotSupportedException(SR.GetString("WinNTRequired"));
}
if (!this.Connected)
{
throw new NotSupportedException(SR.GetString("net_notconnected"));
}
this.ValidateBlockingMode();
TransmitFileOverlappedAsyncResult result = new TransmitFileOverlappedAsyncResult(this);
FileStream fileStream = null;
if ((fileName != null) && (fileName.Length > 0))
{
fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
}
System.Runtime.InteropServices.SafeHandle fileHandle = null;
if (fileStream != null)
{
ExceptionHelper.UnmanagedPermission.Assert();
try
{
fileHandle = fileStream.SafeFileHandle;
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
SocketError success = SocketError.Success;
try
{
result.SetUnmanagedStructures(preBuffer, postBuffer, fileStream, TransmitFileOptions.UseDefaultWorkerThread, true);
if ((fileHandle != null) ? !UnsafeNclNativeMethods.OSSOCK.TransmitFile_Blocking(this.m_Handle.DangerousGetHandle(), fileHandle, 0, 0, SafeNativeOverlapped.Zero, result.TransmitFileBuffers, flags) : !UnsafeNclNativeMethods.OSSOCK.TransmitFile_Blocking2(this.m_Handle.DangerousGetHandle(), IntPtr.Zero, 0, 0, SafeNativeOverlapped.Zero, result.TransmitFileBuffers, flags))
{
success = (SocketError) Marshal.GetLastWin32Error();
}
}
finally
{
result.SyncReleaseUnmanagedStructures();
}
if (success != SocketError.Success)
{
SocketException socketException = new SocketException(success);
this.UpdateStatusAfterSocketError(socketException);
if (s_LoggingEnabled)
{
Logging.Exception(Logging.Sockets, this, "SendFile", socketException);
}
throw socketException;
}
if ((result.Flags & (TransmitFileOptions.ReuseSocket | TransmitFileOptions.Disconnect)) != TransmitFileOptions.UseDefaultWorkerThread)
{
this.SetToDisconnected();
this.m_RemoteEndPoint = null;
}
if (s_LoggingEnabled)
{
Logging.Exit(Logging.Sockets, this, "SendFile", success);
}
}