private void DoBeginSendFile(string fileName, byte[] preBuffer, byte[] postBuffer, TransmitFileOptions flags, TransmitFileOverlappedAsyncResult asyncResult) { if (Socket.s_LoggingEnabled) Logging.Enter(Logging.Sockets, (object) this, "BeginSendFile", ""); if (this.CleanedUp) throw new ObjectDisposedException(this.GetType().FullName); if (this.CleanedUp) throw new ObjectDisposedException(this.GetType().FullName); if (!this.Connected) throw new NotSupportedException(SR.GetString("net_notconnected")); 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.SocketError; try { asyncResult.SetUnmanagedStructures(preBuffer, postBuffer, fileStream, flags, ref this.Caches.SendOverlappedCache); socketError = (fileHandle == null ? UnsafeNclNativeMethods.OSSOCK.TransmitFile2(this.m_Handle, IntPtr.Zero, 0, 0, asyncResult.OverlappedHandle, asyncResult.TransmitFileBuffers, flags) : UnsafeNclNativeMethods.OSSOCK.TransmitFile(this.m_Handle, fileHandle, 0, 0, asyncResult.OverlappedHandle, asyncResult.TransmitFileBuffers, flags)) ? SocketError.Success : (SocketError) Marshal.GetLastWin32Error(); } finally { socketError = asyncResult.CheckAsyncCallOverlappedResult(socketError); } if (socketError != SocketError.Success) { asyncResult.ExtractCache(ref this.Caches.SendOverlappedCache); SocketException socketException = new SocketException(socketError); this.UpdateStatusAfterSocketError(socketException); if (Socket.s_LoggingEnabled) Logging.Exception(Logging.Sockets, (object) this, "BeginSendFile", (Exception) socketException); throw socketException; } else { if (!Socket.s_LoggingEnabled) return; Logging.Exit(Logging.Sockets, (object) this, "BeginSendFile", (object) socketError); } }
private void DoBeginSendFile( string fileName, byte[] preBuffer, byte[] postBuffer, TransmitFileOptions flags, TransmitFileOverlappedAsyncResult asyncResult) { if(s_LoggingEnabled)Logging.Enter(Logging.Sockets, this, "BeginSendFile", ""); if (CleanedUp) { throw new ObjectDisposedException(this.GetType().FullName); } if (CleanedUp) { throw new ObjectDisposedException(this.GetType().FullName); } #if FEATURE_PAL throw new PlatformNotSupportedException(SR.GetString(SR.WinNTRequired)); #endif // FEATURE_PAL if (!Connected) { throw new NotSupportedException(SR.GetString(SR.net_notconnected)); } GlobalLog.Print("Socket#" + ValidationHelper.HashString(this) + "::DoBeginSendFile() SRC:" + ValidationHelper.ToString(LocalEndPoint) + " DST:" + ValidationHelper.ToString(RemoteEndPoint) + " fileName:" + fileName); 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(); } } // Guarantee to call CheckAsyncCallOverlappedResult if we call SetUnamangedStructures with a cache in order to // avoid a Socket leak in case of error. SocketError errorCode = SocketError.SocketError; try { asyncResult.SetUnmanagedStructures(preBuffer, postBuffer, fileStream, flags, ref Caches.SendOverlappedCache); bool result = false; // This can throw ObjectDisposedException. if (fileHandle != null){ result = UnsafeNclNativeMethods.OSSOCK.TransmitFile(m_Handle,fileHandle,0,0,asyncResult.OverlappedHandle,asyncResult.TransmitFileBuffers,flags); } else{ result = UnsafeNclNativeMethods.OSSOCK.TransmitFile2(m_Handle,IntPtr.Zero,0,0,asyncResult.OverlappedHandle,asyncResult.TransmitFileBuffers,flags); } if(!result) { errorCode = (SocketError)Marshal.GetLastWin32Error(); } else { errorCode = SocketError.Success; } } finally { errorCode = asyncResult.CheckAsyncCallOverlappedResult(errorCode); } // // if the native call fails we'll throw a SocketException // if (errorCode!=SocketError.Success) { // // update our internal state after this socket error and throw // asyncResult.ExtractCache(ref Caches.SendOverlappedCache); SocketException socketException = new SocketException(errorCode); UpdateStatusAfterSocketError(socketException); if(s_LoggingEnabled)Logging.Exception(Logging.Sockets, this, "BeginSendFile", socketException); throw socketException; } GlobalLog.Print("Socket#" + ValidationHelper.HashString(this) + "::DoBeginSendFile() UnsafeNclNativeMethods.OSSOCK.send returns:" + errorCode.ToString()); if(s_LoggingEnabled)Logging.Exit(Logging.Sockets, this, "BeginSendFile", errorCode); }
private void DoBeginSendFile(string fileName, byte[] preBuffer, byte[] postBuffer, TransmitFileOptions flags, TransmitFileOverlappedAsyncResult asyncResult) { if (s_LoggingEnabled) { Logging.Enter(Logging.Sockets, this, "BeginSendFile", ""); } if (this.CleanedUp) { throw new ObjectDisposedException(base.GetType().FullName); } 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")); } 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 socketError = SocketError.SocketError; try { asyncResult.SetUnmanagedStructures(preBuffer, postBuffer, fileStream, flags, ref this.Caches.SendOverlappedCache); bool flag = false; if (fileHandle != null) { flag = UnsafeNclNativeMethods.OSSOCK.TransmitFile(this.m_Handle, fileHandle, 0, 0, asyncResult.OverlappedHandle, asyncResult.TransmitFileBuffers, flags); } else { flag = UnsafeNclNativeMethods.OSSOCK.TransmitFile2(this.m_Handle, IntPtr.Zero, 0, 0, asyncResult.OverlappedHandle, asyncResult.TransmitFileBuffers, flags); } if (!flag) { socketError = (SocketError) Marshal.GetLastWin32Error(); } else { socketError = SocketError.Success; } } finally { socketError = asyncResult.CheckAsyncCallOverlappedResult(socketError); } if (socketError != SocketError.Success) { asyncResult.ExtractCache(ref this.Caches.SendOverlappedCache); SocketException socketException = new SocketException(socketError); this.UpdateStatusAfterSocketError(socketException); if (s_LoggingEnabled) { Logging.Exception(Logging.Sockets, this, "BeginSendFile", socketException); } throw socketException; } if (s_LoggingEnabled) { Logging.Exit(Logging.Sockets, this, "BeginSendFile", socketError); } }