| private ReadLine ( byte &buffer, int &offset, int &count, CancellationToken cancellationToken ) : bool | ||
| buffer | byte | The buffer containing the line data. |
| offset | int | The offset into the buffer containing bytes read. |
| count | int | The number of bytes read. |
| cancellationToken | CancellationToken | The cancellation token. |
| return | bool | |
/// <summary>
/// Reads a single line from the <see cref="Pop3Stream"/>.
/// </summary>
/// <returns>The line.</returns>
/// <param name="cancellationToken">The cancellation token.</param>
/// <exception cref="System.InvalidOperationException">
/// The engine is not connected.
/// </exception>
/// <exception cref="System.OperationCanceledException">
/// The operation was canceled via the cancellation token.
/// </exception>
/// <exception cref="System.IO.IOException">
/// An I/O error occurred.
/// </exception>
public string ReadLine(CancellationToken cancellationToken)
{
if (stream == null)
{
throw new InvalidOperationException();
}
using (var memory = new MemoryStream()) {
int offset, count;
byte[] buf;
while (!stream.ReadLine(out buf, out offset, out count, cancellationToken))
{
memory.Write(buf, offset, count);
}
memory.Write(buf, offset, count);
count = (int)memory.Length;
#if !NETFX_CORE
buf = memory.GetBuffer();
#else
buf = memory.ToArray();
#endif
try {
return(UTF8.GetString(buf, 0, count));
} catch (DecoderFallbackException) {
return(Latin1.GetString(buf, 0, count));
}
}
}
/// <summary>
/// Reads a single line from the <see cref="Pop3Stream"/>.
/// </summary>
/// <returns>The line.</returns>
/// <param name="cancellationToken">A cancellation token.</param>
/// <exception cref="System.InvalidOperationException">
/// The engine is not connected.
/// </exception>
/// <exception cref="System.OperationCanceledException">
/// The operation was canceled via the cancellation token.
/// </exception>
/// <exception cref="System.IO.IOException">
/// An I/O error occurred.
/// </exception>
public string ReadLine(CancellationToken cancellationToken)
{
if (stream == null)
{
throw new InvalidOperationException();
}
cancellationToken.ThrowIfCancellationRequested();
using (var memory = new MemoryStream()) {
int offset, count;
byte[] buf;
while (!stream.ReadLine(out buf, out offset, out count))
{
cancellationToken.ThrowIfCancellationRequested();
memory.Write(buf, offset, count);
}
memory.Write(buf, offset, count);
count = (int)memory.Length;
buf = memory.GetBuffer();
return(Latin1.GetString(buf, 0, count));
}
}
async Task <string> ReadLineAsync(bool doAsync, CancellationToken cancellationToken)
{
if (stream == null)
{
throw new InvalidOperationException();
}
using (var builder = new ByteArrayBuilder(64)) {
bool complete;
do
{
if (doAsync)
{
complete = await stream.ReadLineAsync(builder, cancellationToken).ConfigureAwait(false);
}
else
{
complete = stream.ReadLine(builder, cancellationToken);
}
} while (!complete);
// FIXME: All callers expect CRLF to be trimmed, but many also want all trailing whitespace trimmed.
builder.TrimNewLine();
return(builder.ToString());
}
}
async Task <string> ReadLineAsync(bool doAsync, CancellationToken cancellationToken)
{
if (stream == null)
{
throw new InvalidOperationException();
}
using (var memory = new MemoryStream()) {
bool complete;
byte[] buf;
int count;
do
{
if (doAsync)
{
complete = await stream.ReadLineAsync(memory, cancellationToken).ConfigureAwait(false);
}
else
{
complete = stream.ReadLine(memory, cancellationToken);
}
} while (!complete);
count = (int)memory.Length;
#if !NETFX_CORE && !NETSTANDARD
buf = memory.GetBuffer();
#else
buf = memory.ToArray();
#endif
// Trim the <CR><LF> sequence from the end of the line.
if (buf[count - 1] == (byte)'\n')
{
count--;
if (buf[count - 1] == (byte)'\r')
{
count--;
}
}
try {
return(UTF8.GetString(buf, 0, count));
} catch (DecoderFallbackException) {
return(Latin1.GetString(buf, 0, count));
}
}
}
/// <summary>
/// Reads a single line from the <see cref="Pop3Stream"/>.
/// </summary>
/// <returns>The line.</returns>
/// <param name="cancellationToken">The cancellation token.</param>
/// <exception cref="System.InvalidOperationException">
/// The engine is not connected.
/// </exception>
/// <exception cref="System.OperationCanceledException">
/// The operation was canceled via the cancellation token.
/// </exception>
/// <exception cref="System.IO.IOException">
/// An I/O error occurred.
/// </exception>
public string ReadLine(CancellationToken cancellationToken)
{
if (stream == null)
{
throw new InvalidOperationException();
}
using (var memory = new MemoryStream()) {
int offset, count;
byte[] buf;
while (!stream.ReadLine(out buf, out offset, out count, cancellationToken))
{
memory.Write(buf, offset, count);
}
memory.Write(buf, offset, count);
count = (int)memory.Length;
#if !NETFX_CORE && !NETSTANDARD
buf = memory.GetBuffer();
#else
buf = memory.ToArray();
#endif
// Trim the <CR><LF> sequence from the end of the line.
if (buf[count - 1] == (byte)'\n')
{
count--;
if (buf[count - 1] == (byte)'\r')
{
count--;
}
}
try {
return(UTF8.GetString(buf, 0, count));
} catch (DecoderFallbackException) {
return(Latin1.GetString(buf, 0, count));
}
}
}
