hyperion.ng/libsrc/jsonserver/JsonServer.cpp
penfold42 6fbfda03fa add zeroconf support based on qt4 libraries (#667)
* Removed -HUP so the default -TERM signal is sent instead.
- hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config

Changed pgrep to add '-x' so it wont partial match on the exe name.
- I have multiple instances with multiple hyperiond-instance1 names
- this ensures the service script only kills the right process

* reversing errant change to hyperion.systemd.sh

* added bonjour/zeroconf service discovery to the json interface.

When clients are also modified, they can
- find hyperiond on the network much more quickly than ping/portscan;
- find multiple instances running on different ports instead of assuming 19444

* Moved zeroconf calls to hyperiond.cpp

* Added mDNS/zerconf/bonjour registration for proto server

Added config options.
        "jsonServer" :
        {
                "port" : 49444,
//              "mDNSDescr" : "hyperiond jsonServer blah de blah",
                "mDNSService" : "_hyperiond_json._tcp"
        },

* cleaned up a couple of compiler warnings

* moved bitpair_to_byte initialiser to (hopefully) work with older GCC

* compiler warning in udp driver
removed some tabs in ws2812b.cpp

* formatting - spaces to tabs

* moved rpi_281x to tag sk6812-v1.0

* moving to my fork of rpi_281x

* Now uses the led device name and hostname to create the annouce name


Former-commit-id: abfa51bcf359cafa63338181c1b83ecfd231bc87
2016-05-31 22:55:11 +02:00

70 lines
1.9 KiB
C++

// system includes
#include <stdexcept>
// project includes
#include <jsonserver/JsonServer.h>
#include "JsonClientConnection.h"
JsonServer::JsonServer(Hyperion *hyperion, uint16_t port) :
QObject(),
_hyperion(hyperion),
_server(),
_openConnections()
{
if (!_server.listen(QHostAddress::Any, port))
{
throw std::runtime_error("JSONSERVER ERROR: could not bind to port");
}
QList<MessageForwarder::JsonSlaveAddress> list = _hyperion->getForwarder()->getJsonSlaves();
for ( int i=0; i<list.size(); i++ )
{
if ( list.at(i).addr == QHostAddress::LocalHost && list.at(i).port == port ) {
throw std::runtime_error("JSONSERVER ERROR: Loop between proto server and forwarder detected. Fix your config!");
}
}
// Set trigger for incoming connections
connect(&_server, SIGNAL(newConnection()), this, SLOT(newConnection()));
// make sure the resources are loaded (they may be left out after static linking
Q_INIT_RESOURCE(JsonSchemas);
}
JsonServer::~JsonServer()
{
foreach (JsonClientConnection * connection, _openConnections) {
delete connection;
}
}
uint16_t JsonServer::getPort() const
{
return _server.serverPort();
}
void JsonServer::newConnection()
{
QTcpSocket * socket = _server.nextPendingConnection();
if (socket != nullptr)
{
std::cout << "JSONSERVER INFO: New connection" << std::endl;
JsonClientConnection * connection = new JsonClientConnection(socket, _hyperion);
_openConnections.insert(connection);
// register slot for cleaning up after the connection closed
connect(connection, SIGNAL(connectionClosed(JsonClientConnection*)), this, SLOT(closedConnection(JsonClientConnection*)));
}
}
void JsonServer::closedConnection(JsonClientConnection *connection)
{
std::cout << "JSONSERVER INFO: Connection closed" << std::endl;
_openConnections.remove(connection);
// schedule to delete the connection object
connection->deleteLater();
}