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Add support for promises

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This commit is contained in:
mmorrison 2017-03-14 03:40:02 -05:00
parent 42df8ed96b
commit 7b9fe2161c
4 changed files with 99 additions and 71 deletions
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97
lib/index.js
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@ -29,50 +29,67 @@ udpSocket.on('error', function(e) {
Gamedig = {
query: function(options,callback) {
if(callback) options.callback = callback;
const promise = new Promise((resolve,reject) => {
options.callback = (state) => {
if (state.error) reject(state.error);
else resolve(state);
};
var query;
try {
query = TypeResolver.lookup(options.type);
} catch(e) {
process.nextTick(function() {
callback({error:e.message});
});
return;
}
query.debug = Gamedig.debug;
query.udpSocket = udpSocket;
query.type = options.type;
if(!('port' in query.options) && ('port_query' in query.options)) {
if(Gamedig.isCommandLine) {
process.stderr.write(
"Warning! This game is so old, that we don't know"
+" what the server's connection port is. We've guessed that"
+" the query port for "+query.type+" is "+query.options.port_query+"."
+" If you know the connection port for this type of server, please let"
+" us know on the GameDig issue tracker, thanks!\n"
);
var query;
try {
query = TypeResolver.lookup(options.type);
} catch(e) {
process.nextTick(function() {
options.callback({error:e.message});
});
return;
}
query.debug = Gamedig.debug;
query.udpSocket = udpSocket;
query.type = options.type;
if(!('port' in query.options) && ('port_query' in query.options)) {
if(Gamedig.isCommandLine) {
process.stderr.write(
"Warning! This game is so old, that we don't know"
+" what the server's connection port is. We've guessed that"
+" the query port for "+query.type+" is "+query.options.port_query+"."
+" If you know the connection port for this type of server, please let"
+" us know on the GameDig issue tracker, thanks!\n"
);
}
query.options.port = query.options.port_query;
delete query.options.port_query;
}
// copy over options
for(var i in options) query.options[i] = options[i];
activeQueries.push(query);
query.on('finished',function(state) {
var i = activeQueries.indexOf(query);
if(i >= 0) activeQueries.splice(i, 1);
});
process.nextTick(function() {
query.start();
});
});
if (callback && callback instanceof Function) {
if(callback.length == 2) {
promise
.then((state) => callback(null,state))
.catch((error) => callback(error));
} else if (callback.length == 1) {
promise
.then((state) => callback(state))
.catch((error) => callback({error:error}));
}
query.options.port = query.options.port_query;
delete query.options.port_query;
}
// copy over options
for(var i in options) query.options[i] = options[i];
activeQueries.push(query);
query.on('finished',function(state) {
var i = activeQueries.indexOf(query);
if(i >= 0) activeQueries.splice(i, 1);
});
process.nextTick(function() {
query.start();
});
return query;
return promise;
}
};