Method PushCallState

src/server/angelscript/angelscript/source/as_context.cpp:1495–1533

}

int asCContext::PushCallState()
{
	if( m_callStack.GetLength() == m_callStack.GetCapacity() )
	{
		if (m_engine->ep.maxCallStackSize > 0 && m_callStack.GetLength() >= m_engine->ep.maxCallStackSize*CALLSTACK_FRAME_SIZE)
		{
			// The call stack is too big to grow further
			SetInternalException(TXT_STACK_OVERFLOW);
			return asERROR;
		}

		// Allocate space for 10 call states at a time to save time
		m_callStack.AllocateNoConstruct(m_callStack.GetLength() + 10*CALLSTACK_FRAME_SIZE, true);
	}
	m_callStack.SetLengthNoConstruct(m_callStack.GetLength() + CALLSTACK_FRAME_SIZE);

    // Separating the loads and stores limits data cache trash, and with a smart compiler
    // could turn into SIMD style loading/storing if available.
    // The compiler can't do this itself due to potential pointer aliasing between the pointers,
    // ie writing to tmp could overwrite the data contained in registers.stackFramePointer for example
    // for all the compiler knows. So introducing the local variable s, which is never referred to by
    // its address we avoid this issue.

	asPWORD s[5];
	s[0] = (asPWORD)m_regs.stackFramePointer;
	s[1] = (asPWORD)m_currentFunction;
	s[2] = (asPWORD)m_regs.programPointer;
	s[3] = (asPWORD)m_regs.stackPointer;
	s[4] = m_stackIndex;

	asPWORD *tmp = m_callStack.AddressOf() + m_callStack.GetLength() - CALLSTACK_FRAME_SIZE;
	tmp[0] = s[0];
	tmp[1] = s[1];
	tmp[2] = s[2];
	tmp[3] = s[3];
	tmp[4] = s[4];

	return asSUCCESS;
}

void asCContext::PopCallState()
{