SimpleNodeInfo.hxx

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#ifndef _NRMANET_SIMPLENODEINFO_HXX_
#define _NRMANET_SIMPLENODEINFO_HXX_
 
#include "openlcb/If.hxx"
#include "openlcb/SimpleInfoProtocol.hxx"
#include "openlcb/SimpleNodeInfoDefs.hxx"
 
namespace openlcb
{
 
 
void init_snip_user_file(int fd, const char *user_name,
                         const char *user_description);
 
class SNIPHandler : public IncomingMessageStateFlow
{
public:
    SNIPHandler(If *iface, Node* node, SimpleInfoFlow *response_flow)
        : IncomingMessageStateFlow(iface)
        , node_(node)
        , responseFlow_(response_flow)
    {
        HASSERT(SNIP_STATIC_DATA.version == 4);
        iface->dispatcher()->register_handler(
            this, Defs::MTI_IDENT_INFO_REQUEST, Defs::MTI_EXACT);
    }
 
    ~SNIPHandler()
    {
        iface()->dispatcher()->unregister_handler(
            this, Defs::MTI_IDENT_INFO_REQUEST, Defs::MTI_EXACT);
    }
 
    Action entry() OVERRIDE
    {
        if (!nmsg()->dstNode)
            return release_and_exit();
        if (node_ && nmsg()->dstNode != node_)
            return release_and_exit();
        return allocate_and_call(responseFlow_, STATE(send_response_request));
    }
 
    Action send_response_request()
    {
        auto *b = get_allocation_result(responseFlow_);
        b->data()->reset(nmsg(), SNIP_DYNAMIC_FILENAME == nullptr ? SNIP_STATIC_RESPONSE : SNIP_RESPONSE, Defs::MTI_IDENT_INFO_REPLY);
        responseFlow_->send(b);
        return release_and_exit();
    }
 
private:
    static const SimpleInfoDescriptor SNIP_RESPONSE[];
    static const SimpleInfoDescriptor SNIP_STATIC_RESPONSE[];
 
    Node* node_;
    SimpleInfoFlow *responseFlow_;
};
 
struct SnipDecodedData {
    void clear() {
        manufacturer_name.clear();
        model_name.clear();
        hardware_version.clear();
        software_version.clear();
        user_name.clear();
        user_description.clear();
    }
    string manufacturer_name;
    string model_name;
    string hardware_version;
    string software_version;
 
    string user_name;
    string user_description;
};
 
void decode_snip_response(
    const openlcb::Payload &payload, SnipDecodedData *output);
 
} // namespace openlcb
 
#endif // _NRMANET_SIMPLENODEINFO_HXX_