FlushAsyncInternal() private static method

private static FlushAsyncInternal ( StreamWriter _this, bool flushStream, bool flushEncoder, char charBuffer, int charPos, bool haveWrittenPreamble, Encoding encoding, Encoder encoder, Byte byteBuffer, Stream stream ) : System.Threading.Tasks.Task
_this StreamWriter
flushStream bool
flushEncoder bool
charBuffer char
charPos int
haveWrittenPreamble bool
encoding System.Text.Encoding
encoder System.Text.Encoder
byteBuffer Byte
stream Stream
return System.Threading.Tasks.Task
示例#1
0
        // We pass in private instance fields of this MarshalByRefObject-derived type as local params
        // to ensure performant access inside the state machine that corresponds this async method.
        // Fields that are written to must be assigned at the end of the method *and* before instance invocations.
        private static async Task WriteAsyncInternal(StreamWriter _this, Char value,
                                                     Char[] charBuffer, Int32 charPos, Int32 charLen, Char[] coreNewLine,
                                                     bool autoFlush, bool appendNewLine)
        {
            if (charPos == charLen)
            {
                await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);

                Debug.Assert(_this.charPos == 0);
                charPos = 0;
            }

            charBuffer[charPos] = value;
            charPos++;

            if (appendNewLine)
            {
                for (Int32 i = 0; i < coreNewLine.Length; i++)   // Expect 2 iterations, no point calling BlockCopy
                {
                    if (charPos == charLen)
                    {
                        await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);

                        Debug.Assert(_this.charPos == 0);
                        charPos = 0;
                    }

                    charBuffer[charPos] = coreNewLine[i];
                    charPos++;
                }
            }

            if (autoFlush)
            {
                await _this.FlushAsyncInternal(true, false, charBuffer, charPos).ConfigureAwait(false);

                Debug.Assert(_this.charPos == 0);
                charPos = 0;
            }

            _this.CharPos_Prop = charPos;
        }
示例#2
0
        private Task FlushAsyncInternal(bool flushStream, bool flushEncoder, char[] sCharBuffer, int sCharPos)
        {
            if (sCharPos == 0 && !flushStream && !flushEncoder)
            {
                return(Task.CompletedTask);
            }
            Task task = StreamWriter.FlushAsyncInternal(this, flushStream, flushEncoder, sCharBuffer, sCharPos, this.haveWrittenPreamble, this.encoding, this.encoder, this.byteBuffer, this.stream);

            this.charPos = 0;
            return(task);
        }
示例#3
0
        // We pass in private instance fields of this MarshalByRefObject-derived type as local params
        // to ensure performant access inside the state machine that corresponds this async method.
        // Fields that are written to must be assigned at the end of the method *and* before instance invocations.
        private static async Task WriteAsyncInternal(StreamWriter _this, char[] buffer, int index, int count,
                                                     char[] charBuffer, int charPos, int charLen, char[] coreNewLine,
                                                     bool autoFlush, bool appendNewLine)
        {
            Debug.Assert(count == 0 || (count > 0 && buffer != null));
            Debug.Assert(index >= 0);
            Debug.Assert(count >= 0);
            Debug.Assert(buffer == null || (buffer != null && buffer.Length - index >= count));

            while (count > 0)
            {
                if (charPos == charLen)
                {
                    await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);
                    Debug.Assert(_this._charPos == 0);
                    charPos = 0;
                }

                int n = charLen - charPos;
                if (n > count)
                {
                    n = count;
                }

                Debug.Assert(n > 0, "StreamWriter::Write(char[], int, int) isn't making progress!  This is most likely a race condition in user code.");

                Buffer.BlockCopy(buffer, index * sizeof(char), charBuffer, charPos * sizeof(char), n * sizeof(char));

                charPos += n;
                index += n;
                count -= n;
            }

            if (appendNewLine)
            {
                for (int i = 0; i < coreNewLine.Length; i++)   // Expect 2 iterations, no point calling BlockCopy
                {
                    if (charPos == charLen)
                    {
                        await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);
                        Debug.Assert(_this._charPos == 0);
                        charPos = 0;
                    }

                    charBuffer[charPos] = coreNewLine[i];
                    charPos++;
                }
            }

            if (autoFlush)
            {
                await _this.FlushAsyncInternal(true, false, charBuffer, charPos).ConfigureAwait(false);
                Debug.Assert(_this._charPos == 0);
                charPos = 0;
            }

            _this.CharPos_Prop = charPos;
        }
示例#4
0
        // We pass in private instance fields of this MarshalByRefObject-derived type as local params
        // to ensure performant access inside the state machine that corresponds this async method.
        // Fields that are written to must be assigned at the end of the method *and* before instance invocations.
        private static async Task WriteAsyncInternal(StreamWriter _this, char value,
                                                     char[] charBuffer, int charPos, int charLen, char[] coreNewLine,
                                                     bool autoFlush, bool appendNewLine)
        {
            if (charPos == charLen)
            {
                await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);
                Debug.Assert(_this._charPos == 0);
                charPos = 0;
            }

            charBuffer[charPos] = value;
            charPos++;

            if (appendNewLine)
            {
                for (int i = 0; i < coreNewLine.Length; i++)   // Expect 2 iterations, no point calling BlockCopy
                {
                    if (charPos == charLen)
                    {
                        await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);
                        Debug.Assert(_this._charPos == 0);
                        charPos = 0;
                    }

                    charBuffer[charPos] = coreNewLine[i];
                    charPos++;
                }
            }

            if (autoFlush)
            {
                await _this.FlushAsyncInternal(true, false, charBuffer, charPos).ConfigureAwait(false);
                Debug.Assert(_this._charPos == 0);
                charPos = 0;
            }

            _this.CharPos_Prop = charPos;
        }
示例#5
0
        // We pass in private instance fields of this MarshalByRefObject-derived type as local params
        // to ensure performant access inside the state machine that corresponds this async method.
        // Fields that are written to must be assigned at the end of the method *and* before instance invocations.
        private static async Task WriteAsyncInternal(StreamWriter _this, char[] buffer, int index, int count,
                                                     char[] charBuffer, int charPos, int charLen, char[] coreNewLine,
                                                     bool autoFlush, bool appendNewLine)
        {
            Debug.Assert(count == 0 || (count > 0 && buffer != null));
            Debug.Assert(index >= 0);
            Debug.Assert(count >= 0);
            Debug.Assert(buffer == null || (buffer != null && buffer.Length - index >= count));

            while (count > 0)
            {
                if (charPos == charLen)
                {
                    await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);

                    Debug.Assert(_this._charPos == 0);
                    charPos = 0;
                }

                int n = charLen - charPos;
                if (n > count)
                {
                    n = count;
                }

                Debug.Assert(n > 0, "StreamWriter::Write(char[], int, int) isn't making progress!  This is most likely a race condition in user code.");

                Buffer.BlockCopy(buffer, index * sizeof(char), charBuffer, charPos * sizeof(char), n * sizeof(char));

                charPos += n;
                index   += n;
                count   -= n;
            }

            if (appendNewLine)
            {
                for (int i = 0; i < coreNewLine.Length; i++)   // Expect 2 iterations, no point calling BlockCopy
                {
                    if (charPos == charLen)
                    {
                        await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);

                        Debug.Assert(_this._charPos == 0);
                        charPos = 0;
                    }

                    charBuffer[charPos] = coreNewLine[i];
                    charPos++;
                }
            }

            if (autoFlush)
            {
                await _this.FlushAsyncInternal(true, false, charBuffer, charPos).ConfigureAwait(false);

                Debug.Assert(_this._charPos == 0);
                charPos = 0;
            }

            _this.CharPos_Prop = charPos;
        }
示例#6
0
        // We pass in private instance fields of this MarshalByRefObject-derived type as local params
        // to ensure performant access inside the state machine that corresponds this async method.
        // Fields that are written to must be assigned at the end of the method *and* before instance invocations.
        private static async Task WriteAsyncInternal(StreamWriter _this, String value,
                                                     Char[] charBuffer, Int32 charPos, Int32 charLen, Char[] coreNewLine,
                                                     bool autoFlush, bool appendNewLine)
        {
            Contract.Requires(value != null);

            int count = value.Length;
            int index = 0;

            while (count > 0)
            {
                if (charPos == charLen) {
                    await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);
                    Debug.Assert(_this.charPos == 0);
                    charPos = 0;
                }

                int n = charLen - charPos;
                if (n > count)
                    n = count;

                Debug.Assert(n > 0, "StreamWriter::Write(String) isn't making progress!  This is most likely a race condition in user code.");

                value.CopyTo(index, charBuffer, charPos, n);

                charPos += n;
                index += n;
                count -= n;
            }

            if (appendNewLine)
            {
                for (Int32 i = 0; i < coreNewLine.Length; i++)   // Expect 2 iterations, no point calling BlockCopy
                {
                    if (charPos == charLen) {
                        await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);
                        Debug.Assert(_this.charPos == 0);
                        charPos = 0;
                    }

                    charBuffer[charPos] = coreNewLine[i];
                    charPos++;
                }
            }

            if (autoFlush) {
                await _this.FlushAsyncInternal(true, false, charBuffer, charPos).ConfigureAwait(false);
                Debug.Assert(_this.charPos == 0);
                charPos = 0;
            }

            _this.CharPos_Prop = charPos;
        }
示例#7
0
        // We pass in private instance fields of this MarshalByRefObject-derived type as local params
        // to ensure performant access inside the state machine that corresponds this async method.
        // Fields that are written to must be assigned at the end of the method *and* before instance invocations.
        private static async Task WriteAsyncInternal(StreamWriter _this, String value,
                                                     Char[] charBuffer, Int32 charPos, Int32 charLen, Char[] coreNewLine,
                                                     bool autoFlush, bool appendNewLine)
        {
            Contract.Requires(value != null);

            int count = value.Length;
            int index = 0;

            while (count > 0)
            {
                if (charPos == charLen)
                {
                    await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);

                    Contract.Assert(_this.charPos == 0);
                    charPos = 0;
                }

                int n = charLen - charPos;
                if (n > count)
                {
                    n = count;
                }

                Contract.Assert(n > 0, "StreamWriter::Write(String) isn't making progress!  This is most likely a race condition in user code.");

                value.CopyTo(index, charBuffer, charPos, n);

                charPos += n;
                index   += n;
                count   -= n;
            }

            if (appendNewLine)
            {
                for (Int32 i = 0; i < coreNewLine.Length; i++)   // Expect 2 iterations, no point calling BlockCopy
                {
                    if (charPos == charLen)
                    {
                        await _this.FlushAsyncInternal(false, false, charBuffer, charPos).ConfigureAwait(false);

                        Contract.Assert(_this.charPos == 0);
                        charPos = 0;
                    }

                    charBuffer[charPos] = coreNewLine[i];
                    charPos++;
                }
            }

            if (autoFlush)
            {
                await _this.FlushAsyncInternal(true, false, charBuffer, charPos).ConfigureAwait(false);

                Contract.Assert(_this.charPos == 0);
                charPos = 0;
            }

            _this.CharPos_Prop = charPos;
        }