Terminal_process_CT/snap7_communication/snap7_buf.cpp

#include "snap7_buf.h"
#include <string>
#include <string.h>

Snap7_buf::Snap7_buf()
{
	m_id = 0;
	m_start_index = 0;
	m_size = 0;
	mp_buf_obverse = nullptr;
	mp_buf_reverse = nullptr;
	m_communication_mode = NO_COMMUNICATION;

}
Snap7_buf::Snap7_buf(const Snap7_buf& other)
{
	m_id = other.m_id;
	m_start_index = other.m_start_index;
	m_communication_mode = other.m_communication_mode;

	if ( other.m_size > 0 && other.mp_buf_obverse != nullptr && other.mp_buf_reverse != nullptr)
	{
		mp_buf_obverse = (void*)malloc(other.m_size);
		memcpy(mp_buf_obverse, other.mp_buf_obverse, other.m_size);
		mp_buf_reverse = (void*)malloc(other.m_size);
		memcpy(mp_buf_reverse, other.mp_buf_reverse, other.m_size);
		m_size = other.m_size;
	}
}
Snap7_buf& Snap7_buf::operator =(const Snap7_buf& other)
{
	m_id = other.m_id;
	m_start_index = other.m_start_index;
	m_communication_mode = other.m_communication_mode;

	if ( other.m_size > 0 && other.mp_buf_obverse != nullptr && other.mp_buf_reverse != nullptr)
	{
		mp_buf_obverse = (void*)malloc(other.m_size);
		memcpy(mp_buf_obverse, other.mp_buf_obverse, other.m_size);
		mp_buf_reverse = (void*)malloc(other.m_size);
		memcpy(mp_buf_reverse, other.mp_buf_reverse, other.m_size);
		m_size = other.m_size;
	}
}
Snap7_buf::~Snap7_buf()
{
	if ( mp_buf_obverse )
	{
		free(mp_buf_obverse);
		mp_buf_obverse = NULL;
	}
	if ( mp_buf_reverse )
	{
		free(mp_buf_reverse);
		mp_buf_reverse = NULL;
	}
}

Snap7_buf::Snap7_buf(int id, int start_index, int size, Communication_mode communication_mode)
{
	m_id = id;
	m_start_index = start_index;
	m_communication_mode = communication_mode;

	if ( size > 0)
	{
		mp_buf_obverse = (void*)malloc(size);
		memset(mp_buf_obverse, 0, size);
		mp_buf_reverse = (void*)malloc(size);
		memset(mp_buf_reverse, 0, size);
		m_size = size;
	}
}
Snap7_buf::Snap7_buf(int id, int start_index, int size, void* p_buf_obverse, void* p_buf_reverse, Communication_mode communication_mode)
{
	m_id = id;
	m_start_index = start_index;
	m_communication_mode = communication_mode;

	if ( size > 0 && p_buf_obverse != nullptr && p_buf_reverse != nullptr)
	{
		mp_buf_obverse = (void*)malloc(size);
		memcpy(mp_buf_obverse, p_buf_obverse, size);
		mp_buf_reverse = (void*)malloc(size);
		memcpy(mp_buf_reverse, p_buf_reverse, size);
		m_size = size;
	}
}

int Snap7_buf::get_id()
{
	return m_id;
}
int Snap7_buf::get_start_index()
{
	return m_start_index;
}
int Snap7_buf::get_size()
{
	return m_size;
}
void* Snap7_buf::get_buf_obverse()
{
	return mp_buf_obverse;
}
void* Snap7_buf::get_buf_reverse()
{
	return mp_buf_reverse;
}

Snap7_buf::Communication_mode Snap7_buf::get_communication_mode()
{
	return m_communication_mode;
}
void Snap7_buf::set_communication_mode(Communication_mode communication_mode)
{
	m_communication_mode = communication_mode;
}