Method ReadString

src/ByteBuffer.cpp:725–753

bool cByteBuffer::ReadString(AString & a_String, size_t a_Count)
{
	CHECK_THREAD;
	CheckValid();
	NEEDBYTES(a_Count);
	a_String.clear();
	a_String.reserve(a_Count);
	ASSERT(m_BufferSize >= m_ReadPos);
	size_t BytesToEndOfBuffer = m_BufferSize - m_ReadPos;
	if (BytesToEndOfBuffer <= a_Count)
	{
		// Reading across the ringbuffer end, read the first part and adjust parameters:
		if (BytesToEndOfBuffer > 0)
		{
			a_String.assign(m_Buffer + m_ReadPos, BytesToEndOfBuffer);
			ASSERT(a_Count >= BytesToEndOfBuffer);
			a_Count -= BytesToEndOfBuffer;
		}
		m_ReadPos = 0;
	}

	// Read the rest of the bytes in a single read (guaranteed to fit):
	if (a_Count > 0)
	{
		a_String.append(m_Buffer + m_ReadPos, a_Count);
		m_ReadPos += a_Count;
	}
	return true;
}