private static void TryFlushOrResize(int required, StreamProtoWriter writer, ref State state)
{
if (writer.TryFlush(ref state) && // try emptying the buffer
(writer.ioBuffer.Length - writer.ioIndex) >= required)
{
return;
}
// either can't empty the buffer, or that didn't help; need more space
BufferPool.ResizeAndFlushLeft(ref writer.ioBuffer, required + writer.ioIndex, 0, writer.ioIndex);
}
private static void TryFlushOrResize(int required, ProtoWriter writer)
{
if (writer.flushLock == 0)
{
Flush(writer); // try emptying the buffer
if ((writer.ioBuffer.Length - writer.ioIndex) >= required)
{
return;
}
}
// either can't empty the buffer, or that didn't help; need more space
BufferPool.ResizeAndFlushLeft(ref writer.ioBuffer, required + writer.ioIndex, 0, writer.ioIndex);
}
private static void DemandSpace(int required, ProtoWriter writer)
{
if ((int)writer.ioBuffer.Length - writer.ioIndex < required)
{
if (writer.flushLock == 0)
{
ProtoWriter.Flush(writer);
if ((int)writer.ioBuffer.Length - writer.ioIndex >= required)
{
return;
}
}
BufferPool.ResizeAndFlushLeft(ref writer.ioBuffer, required + writer.ioIndex, 0, writer.ioIndex);
}
}
internal void Ensure(int count, bool strict)
{
if (count > ioBuffer.Length)
{
BufferPool.ResizeAndFlushLeft(ref ioBuffer, count, ioIndex, available);
ioIndex = 0;
}
else if (ioIndex + count >= ioBuffer.Length)
{
Helpers.BlockCopy(ioBuffer, ioIndex, ioBuffer, 0, available);
ioIndex = 0;
}
count -= available;
int num = ioIndex + available;
int num2 = ioBuffer.Length - num;
if (isFixedLength && dataRemaining < num2)
{
num2 = dataRemaining;
}
int num3;
while (count > 0 && num2 > 0 && (num3 = source.Read(ioBuffer, num, num2)) > 0)
{
available += num3;
count -= num3;
num2 -= num3;
num += num3;
if (isFixedLength)
{
dataRemaining -= num3;
}
}
if (!strict)
{
return;
}
if (count <= 0)
{
return;
}
throw EoF(this);
}
internal void Ensure(int count, bool strict)
{
Helpers.DebugAssert(available <= count, "Asking for data without checking first");
if (count > ioBuffer.Length)
{
BufferPool.ResizeAndFlushLeft(ref ioBuffer, count, ioIndex, available);
ioIndex = 0;
}
else if (ioIndex + count >= ioBuffer.Length)
{
// need to shift the buffer data to the left to make space
Helpers.BlockCopy(ioBuffer, ioIndex, ioBuffer, 0, available);
ioIndex = 0;
}
count -= available;
int writePos = ioIndex + available, bytesRead;
int canRead = ioBuffer.Length - writePos;
if (isFixedLength)
{ // throttle it if needed
if (dataRemaining < canRead)
{
canRead = dataRemaining;
}
}
while (count > 0 && (bytesRead = source.Read(ioBuffer, writePos, canRead)) > 0)
{
available += bytesRead;
count -= bytesRead;
canRead -= bytesRead;
writePos += bytesRead;
if (isFixedLength)
{
dataRemaining -= bytesRead;
}
}
if (strict && count > 0)
{
throw EoF(this);
}
}
internal void Ensure(int count, bool strict)
{
if (count > this.ioBuffer.Length)
{
BufferPool.ResizeAndFlushLeft(ref this.ioBuffer, count, this.ioIndex, this.available);
this.ioIndex = 0;
}
else if (this.ioIndex + count >= this.ioBuffer.Length)
{
Helpers.BlockCopy(this.ioBuffer, this.ioIndex, this.ioBuffer, 0, this.available);
this.ioIndex = 0;
}
count -= this.available;
int num = this.ioIndex + this.available;
int num2 = this.ioBuffer.Length - num;
if (this.isFixedLength && this.dataRemaining < num2)
{
num2 = this.dataRemaining;
}
int num3;
while (count > 0 && num2 > 0 && (num3 = this.source.Read(this.ioBuffer, num, num2)) > 0)
{
this.available += num3;
count -= num3;
num2 -= num3;
num += num3;
if (this.isFixedLength)
{
this.dataRemaining -= num3;
}
}
if (strict && count > 0)
{
throw ProtoReader.EoF(this);
}
}