Method WriteBuf

src/ByteBuffer.cpp:695–719

bool cByteBuffer::WriteBuf(const void * a_Buffer, size_t a_Count)
{
	CHECK_THREAD;
	CheckValid();
	PUTBYTES(a_Count);
	char * Src = (char *)a_Buffer;  // So that we can do byte math
	ASSERT(m_BufferSize >= m_ReadPos);
	size_t BytesToEndOfBuffer = m_BufferSize - m_WritePos;
	if (BytesToEndOfBuffer <= a_Count)
	{
		// Reading across the ringbuffer end, read the first part and adjust parameters:
		memcpy(m_Buffer + m_WritePos, Src, BytesToEndOfBuffer);
		Src += BytesToEndOfBuffer;
		a_Count -= BytesToEndOfBuffer;
		m_WritePos = 0;
	}
	
	// Read the rest of the bytes in a single read (guaranteed to fit):
	if (a_Count > 0)
	{
		memcpy(m_Buffer + m_WritePos, Src, a_Count);
		m_WritePos += a_Count;
	}
	return true;
}