// the mCallback implementation
private void onIterate(IntPtr sourceGroup, IntPtr source, uint weight, IntPtr closure)
{
MamaSource ms = new MamaSource(source);
MamaWeightedSource ws = new MamaWeightedSource(ms, weight);
mItems.Add(ws);
GC.KeepAlive(ms);
GC.KeepAlive(ws);
}
/// <summary>
/// CLS compliant version of add(MamaSource, UInt32)
/// </summary>
public void add(
MamaSource source,
int weight)
{
#if MAMA_WRAPPERS_CHECK_ARGUMENTS
if (weight < 0)
{
throw new ArgumentOutOfRangeException("weight", weight);
}
#endif // MAMA_WRAPPERS_CHECK_ARGUMENTS
add(source, (uint)weight);
}
/// <summary>
/// Implements <see cref="ISourceManager.add(MamaSource)">ISourceManager.add(MamaSource)</see>
/// </summary>
public void add(MamaSource source)
{
#if MAMA_WRAPPERS_CHECK_ARGUMENTS
if (source == null)
{
throw new ArgumentNullException("source");
}
#endif // MAMA_WRAPPERS_CHECK_ARGUMENTS
EnsurePeerCreated();
int code = NativeMethods.mamaSourceManager_addSource(nativeHandle, source.NativeHandle);
CheckResultCode(code);
GC.KeepAlive(source);
}
/// <summary>
/// Add a mamaSource to the specified mGroup with the specified weighting and string name identifier.
/// </summary>
/// <param name="sourceName">The unique identifier for this source in this mGroup.</param>
/// <param name="weight">The weighing to apply to the source being added.</param>
/// <param name="source">The mamaSource being added to the mamaSourceGroup.</param>
public void add(
string sourceName,
uint weight,
MamaSource source)
{
#if MAMA_WRAPPERS_CHECK_ARGUMENTS
if (sourceName == null)
{
throw new ArgumentNullException("sourceName", sourceName);
}
if (source == null)
{
throw new ArgumentNullException("source", source);
}
#endif // MAMA_WRAPPERS_CHECK_ARGUMENTS
EnsurePeerCreated();
int code = NativeMethods.mamaSourceGroup_addSourceWithName(nativeHandle, source.NativeHandle, sourceName, weight);
CheckResultCode(code);
GC.KeepAlive(source);
}
/// <summary>
/// Create a data dictionary from a subscription
/// </summary>
public void create(
MamaQueue queue,
MamaDictionaryCallback callback,
MamaSource source,
int retries,
double timeout)
{
mCallbackForwarder = new CallbackForwarder(this, callback);
IntPtr queuePtr = queue != null ? queue.NativeHandle : IntPtr.Zero;
IntPtr sourcePtr = source != null ? source.NativeHandle : IntPtr.Zero;
mCallbacks = mCallbackForwarder.getMsgCallbacks();
int code = NativeMethods.mama_createDictionary(ref nativeHandle, queuePtr, mCallbacks, sourcePtr, timeout, retries, nativeHandle);
CheckResultCode(code);
GC.KeepAlive(source);
GC.KeepAlive(queue);
}
/// <summary>
/// Create a data dictionary from a subscription
/// </summary>
public void create(
MamaQueue queue,
MamaDictionaryCallback callback,
MamaSource source,
int retries,
double timeout)
{
mCallbackForwarder = new CallbackForwarder(this, callback);
IntPtr queuePtr = queue != null ? queue.NativeHandle : IntPtr.Zero;
IntPtr sourcePtr = source != null ? source.NativeHandle : IntPtr.Zero;
mCallbacks = mCallbackForwarder.getMsgCallbacks();
int code = NativeMethods.mama_createDictionary(ref nativeHandle, queuePtr, mCallbacks, sourcePtr, timeout, retries, nativeHandle);
CheckResultCode(code);
GC.KeepAlive(source);
GC.KeepAlive(queue);
}
/// <summary>
/// Set the parameters for a subscription that may be actually activated later.
/// Activate the subscription using MamaSubscription.activate().
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.
/// </param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
/// <param name="closure">
/// The caller supplied closure.
/// </param>
public void setup(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol, object closure)
{
// Verify that the subscription has been created
EnsurePeerCreated();
// Save arguments in member variables
base.mClosure = closure;
base.mQueue = queue;
base.mTransport = source.transport;
// Create the impl
IntPtr impl = MamaSubscriptionImpl.Create(callback, closure, this);
// Call into the native layer to setup the subscription
CheckResultCode(SubscriptionNativeMethods.mamaSubscription_setup(
NativeHandle,
queue.NativeHandle,
ref MamaBasicSubscription.mCallbackDelegates,
source.NativeHandle,
symbol,
impl));
}
internal MamaWeightedSource(MamaSource source, uint weight)
{
mSource = source;
mWeight = weight;
}
private static MamaDictionary buildDataDictionary(
MamaTransport transport,
MamaQueue defaultQueue,
MamaSource dictionarySource)
{
bool[] gotDict = new bool[] { false };
MamaDictionaryCallback dictionaryCallback = new DictionaryCallback(gotDict);
lock (dictionaryCallback)
{
MamaSubscription subscription = new MamaSubscription ();
MamaDictionary dictionary = new MamaDictionary();
dictionary.create(
defaultQueue,
dictionaryCallback,
dictionarySource,
3,
10);
Mama.start(myBridge);
if (!gotDict[0])
{
if (!Monitor.TryEnter(dictionaryCallback, 30000))
{
Console.Error.WriteLine("Timed out waiting for dictionary.");
Environment.Exit(0);
}
Monitor.Exit(dictionaryCallback);
}
return dictionary;
}
}
/// <summary>
/// Implements <see cref="ISourceManager.add(MamaSource)">ISourceManager.add(MamaSource)</see>
/// </summary>
public void add(MamaSource source)
{
Manager.add(source);
}
/// <summary>
/// Implements <see cref="ISourceManager.add(System.String, MamaSource)">ISourceManager.add(System.String, MamaSource)</see>
/// </summary>
public void add(string name, MamaSource source)
{
Manager.add(name, source);
}
/// <summary>
/// Set the parameters for a subscription that may be actually activated later.
/// Activate the subscription using MamaSubscription.activate().
/// This overload passes a null value for the closure.
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.</param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
public void setup(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol)
{
// Call the overload passing null for the closure
setup(queue, callback, source, symbol, null);
}
private static void initializeMama()
{
Mama.enableLogging(mamaLogLevel);
try
{
myBridge = Mama.loadBridge (myMiddleware);
/* Always the first API method called. Initialized internal API
* state*/
Mama.open ();
myDefaultQueue = Mama.getDefaultEventQueue (myBridge);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
Console.WriteLine("Failed to initialize MAMA");
Environment.Exit (1);
}
transport = new MamaTransport ();
/* The name specified here is the name identifying properties in the
* mama.properties file*/
transport.create (transportName, myBridge);
if (myDictTportName != null)
{
myDictTransport = new MamaTransport ();
myDictTransport.create (myDictTportName, myBridge);
}
else
{
myDictTransport = transport;
}
/*MamaSource for all subscriptions*/
mySource = new MamaSource ();
mySource.transport = transport;
mySource.symbolNamespace = mySymbolNamespace;
/*MamaSource for dictionary subscription*/
myDictSource = new MamaSource ();
myDictSource.transport = myDictTransport;
myDictSource.symbolNamespace = dictSource;
}
/// <summary>
/// Add a mamaSource to the specified mGroup with the specified weighting.
/// </summary>
/// <remarks>The source id will be used by the mGroup to uniquely identify the source.</remarks>
/// <param name="source">The mamaSource being added to the mamaSourceGroup.</param>
/// <param name="weight">The weighing to apply to the source being added.</param>
public void add(
MamaSource source,
uint weight)
{
#if MAMA_WRAPPERS_CHECK_ARGUMENTS
if (source == null)
{
throw new ArgumentNullException("source", source);
}
#endif // MAMA_WRAPPERS_CHECK_ARGUMENTS
EnsurePeerCreated();
int code = NativeMethods.mamaSourceGroup_addSource(nativeHandle, source.NativeHandle, weight);
CheckResultCode(code);
GC.KeepAlive(source);
}
internal MamaWeightedSource(MamaSource source, uint weight)
{
mSource = source;
mWeight = weight;
}
public static void Main(string[] args)
{
MamaTransport transport = null;
MamaQueue defaultQueue = null;
MamaDictionary dictionary = null;
CommandLineProcessor options = new CommandLineProcessor(args);
double throttleRate = options.getThrottleRate();
if (options.hasLogLevel())
{
logLevel_ = options.getLogLevel();
Mama.enableLogging(logLevel_);
}
if ((throttleRate > 100.0) || (throttleRate <= 0.0))
{
throttleRate = 100.0;
}
try
{
// Initialize MAMDA
myBridge = new MamaBridge(options.getMiddleware());
Mama.open();
transport = new MamaTransport();
transport.create(options.getTransport(), myBridge);
defaultQueue = Mama.getDefaultEventQueue(myBridge);
//Get the Data dictionary.....
MamaSource dictionarySource = new MamaSource();
dictionarySource.symbolNamespace = options.getDictSource();
dictionarySource.transport = transport;
dictionary = buildDataDictionary(transport, defaultQueue, dictionarySource);
//Initialise the dictionary and fields
MamdaCommonFields.setDictionary(dictionary, null);
MamdaQuoteFields.setDictionary(dictionary, null);
MamdaTradeFields.setDictionary(dictionary, null);
foreach (string symbol in options.getSymbolList())
{
MamdaSubscription aSubscription = new MamdaSubscription();
aSubscription.setType(mamaSubscriptionType.MAMA_SUBSC_TYPE_GROUP);
aSubscription.create(
transport,
defaultQueue,
options.getSource(),
symbol,
null);
/* For each subscription a MamdaMultiParticipantManager is
* added as the message listener. The callbacks on the
* MamdaMultiPartHandler will be invokes as new group members
* become available.*/
MamdaMultiParticipantManager multiPartManager =
new MamdaMultiParticipantManager(symbol);
multiPartManager.addHandler(new MultiPartHandler());
aSubscription.addMsgListener(multiPartManager);
aSubscription.activate();
mamdaSubscriptions.Add(aSubscription);
}
Mama.start(myBridge);
GC.KeepAlive(dictionary);
Console.WriteLine("Press ENTER or Ctrl-C to quit...");
Console.ReadLine();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
Environment.Exit(1);
}
}
/// <summary>
/// Implements <see cref="ISourceManager.add(System.String, MamaSource)">ISourceManager.add(System.String, MamaSource)</see>
/// </summary>
public void add(string name, MamaSource source)
{
Manager.add(name, source);
}
/// <summary>
/// This function will clean up all the objects initialised before Mama.start is called.
/// </summary>
private void uninitializeMama()
{
if (m_source != null)
{
m_source.destroy();
m_source = null;
}
if (m_dictionary != null)
{
m_dictionary.Dispose();
m_dictionary = null;
}
if (m_queueGroup != null)
{
m_queueGroup.destroyWait();
m_queueGroup = null;
}
if (m_transport != null)
{
m_transport.destroy();
m_transport = null;
}
Mama.close();
}
/// <summary>
/// Creates the source required to establish market data subscriptions.
/// </summary>
private void createSource()
{
// Allocate a new source object
m_source = new MamaSource();
// Set the source name and main transport
m_source.symbolNamespace = m_sourceName;
m_source.transport = m_transport;
}
/// <summary>
/// This function will create the dictionary.
/// </summary>
private void createDictionary()
{
if (m_downloadDictionary)
{
using (MamaSource dictionarySource = new MamaSource())
{
/* If a dictionary transport has been specified then a new one must be created otherwise
* the main transport will be re-used.
*/
MamaTransport dictionaryTransport = null;
try
{
if((m_dictionaryTransportName == null) || (m_dictionaryTransportName == string.Empty))
{
dictionarySource.transport = m_transport;
}
else
{
dictionaryTransport = new MamaTransport();
dictionaryTransport.create(m_dictionaryTransportName, m_bridge);
dictionarySource.transport = dictionaryTransport;
}
// The symbol namespace must also be set
dictionarySource.symbolNamespace = m_dictionarySourceName;
// Instantiate a callback class
ListenerDictionaryCallback dictionaryCallback = new ListenerDictionaryCallback(m_bridge);
// Create the actual dictionary object using the default queue
m_dictionary = new MamaDictionary();
m_dictionary.create(m_defaultQueue, dictionaryCallback, dictionarySource, 3, 10.0);
// Start the bridge, this will block until the dictionary is downloaded or something goes wrong
Mama.start(m_bridge);
// If something went wrong then throw an exception
if (!dictionaryCallback.DictionaryComplete)
{
throw new ApplicationException("Can't create dictionary.");
}
}
finally
{
if (dictionaryTransport != null)
{
dictionaryTransport.destroy();
}
}
}
}
}
// the mCallback implementation
private void onIterate(IntPtr sourceGroup, IntPtr source, uint weight, IntPtr closure)
{
MamaSource ms = new MamaSource(source);
MamaWeightedSource ws = new MamaWeightedSource(ms, weight);
mItems.Add(ws);
GC.KeepAlive(ms);
GC.KeepAlive(ws);
}
/// <summary>
/// CLS compliant version of add(System.String, UInt32, MamaSource)
/// </summary>
public void add(
string sourceName,
int weight,
MamaSource source)
{
#if MAMA_WRAPPERS_CHECK_ARGUMENTS
if (weight < 0)
{
throw new ArgumentOutOfRangeException("weight", weight);
}
#endif // MAMA_WRAPPERS_CHECK_ARGUMENTS
add(sourceName, (uint)weight, source);
}
/// <summary>
/// Implements <see cref="ISourceManager.add(MamaSource)">ISourceManager.add(MamaSource)</see>
/// </summary>
public void add(MamaSource source)
{
Manager.add(source);
}
/// <summary>
/// Set the parameters for a subscription that may be actually activated later.
/// Activate the subscription using MamaSubscription.activate().
/// This overload passes a null value for the closure.
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.</param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
public void setup(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol)
{
// Call the overload passing null for the closure
setup(queue, callback, source, symbol, null);
}
/// <summary>
/// Set up and activate a subscriber using the throttle queue. This
/// method is equivalent to calling setup() followed by activate().
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.
/// </param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
public void create(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol)
{
// Call the overload with a null closure
create(queue, callback, source, symbol, null);
}
private void initializeMama()
{
mamaBridge = Mama.loadBridge(mamaMiddlewareName);
Console.WriteLine(Mama.getVersion(mamaBridge));
Mama.open();
if (mamaHighWaterMark > 0 || mamaLowWaterMark > 0)
{
if (mamaHighWaterMark > 0)
{
Mama.setDefaultQueueHighWatermark(mamaHighWaterMark);
}
if (mamaLowWaterMark > 0)
{
try
{
Mama.setDefaultQueueLowWatermark(mamaLowWaterMark);
}
catch (Exception e)
{
Console.WriteLine("Could not set default queue low water mark MamaStatus: " + e);
}
}
}
// create the transport
mamaTransport = new MamaTransport();
mamaTransport.setTransportCallback(this);
// the default throttle rate is 500 msg/sec
if (mamaThrottle != -1)
{
mamaTransport.setOutboundThrottle(MamaTransport.MamaThrottleInstance.MAMA_THROTTLE_DEFAULT, mamaThrottle);
}
// the default recap throttle rate is 250 msg/sec
if (mamaRecapThrottle != -1)
{
mamaTransport.setOutboundThrottle(MamaTransport.MamaThrottleInstance.MAMA_THROTTLE_RECAP, mamaRecapThrottle);
}
mamaTransport.create(mamaTransportName, mamaBridge);
// create default queue and, if required, queue group
createQueues();
mamaDictionarySource = new MamaSource();
mamaDictionarySource.symbolNamespace = mamaDictionarySourceName;
mamaDictionarySource.transport = mamaTransport;
// download dictionary
mamaDictionary = new MamaDictionary();
mamaDictionary.create(
mamaDefaultQueue,
this,
mamaDictionarySource,
3,
10.0f);
loadSymbolMap();
Mama.start(mamaBridge);
if (!dictionaryComplete)
{
throw new Exception("Can't create dictionary.");
}
}
/// <summary>
/// Set up and activate a subscriber using the throttle queue. This
/// method is equivalent to calling setup() followed by activate().
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.
/// </param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
public void create(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol)
{
// Call the overload with a null closure
create(queue, callback, source, symbol, null);
}
/// <summary>
/// Set up and activate a subscriber using the throttle queue. This
/// method is equivalent to calling setup() followed by activate().
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.
/// </param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
/// <param name="closure">
/// The caller supplied closure.
/// </param>
public void create(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol, object closure)
{
// This is equivalent to calling setup then activate
setup(queue, callback, source, symbol, closure);
activate();
}
/// <summary>
/// Implements <see cref="ISourceManager.add(System.String, MamaSource)">ISourceManager.add(System.String, MamaSource)</see>
/// </summary>
public void add(string name, MamaSource source)
{
#if MAMA_WRAPPERS_CHECK_ARGUMENTS
if (name == null)
{
throw new ArgumentNullException("name");
}
if (source == null)
{
throw new ArgumentNullException("source");
}
#endif // MAMA_WRAPPERS_CHECK_ARGUMENTS
EnsurePeerCreated();
int code = NativeMethods.mamaSourceManager_addSourceWithName(nativeHandle, source.NativeHandle, name);
CheckResultCode(code);
GC.KeepAlive(source);
}
/// <summary>
/// Set up and activate a subscriber using the throttle queue. This
/// method is equivalent to calling setup() followed by activate().
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.
/// </param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
/// <param name="closure">
/// The caller supplied closure.
/// </param>
public void create(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol, object closure)
{
// This is equivalent to calling setup then activate
setup(queue, callback, source, symbol, closure);
activate();
}
private void createSubscriptions()
{
mamaSource = new MamaSource();
mamaSource.symbolNamespace = mamaSourceName;
mamaSource.transport = mamaTransport;
for (int i = 0; i < mamaNumSymbols; i++)
{
mamaSubscriptions[i] = new MamaSubscription();
mamaSubscriptions[i].setServiceLevel(mamaServiceLevel.MAMA_SERVICE_LEVEL_REAL_TIME);
mamaSubscriptions[i].setSubscriptionType(mamaSubscriptionType.MAMA_SUBSC_TYPE_NORMAL);
mamaSubscriptions[i].setTimeout(10);
mamaSubscriptions[i].setRetries(3);
mamaSubscriptions[i].setRequiresInitial(true);
mamaSubscriptions[i].create(
mamaQueueGroup == null ? mamaDefaultQueue : mamaQueueGroup.getNextQueue(),
this,
mamaSource,
mamaSymbols[i]);
}
}
/// <summary>
/// Set the parameters for a subscription that may be actually activated later.
/// Activate the subscription using MamaSubscription.activate().
/// </summary>
/// <param name="queue">
/// The mama queue.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="source">
/// The MamaSource identifying the publisher for this symbol.
/// </param>
/// <param name="symbol">
/// The symbol for the listener.
/// </param>
/// <param name="closure">
/// The caller supplied closure.
/// </param>
public void setup(MamaQueue queue, MamaSubscriptionCallback callback, MamaSource source, string symbol, object closure)
{
// Verify that the subscription has been created
EnsurePeerCreated();
// Save arguments in member variables
base.mClosure = closure;
base.mQueue = queue;
base.mTransport = source.transport;
// Create the impl
IntPtr impl = MamaSubscriptionImpl.Create(callback, closure, this);
// Call into the native layer to setup the subscription
CheckResultCode(SubscriptionNativeMethods.mamaSubscription_setup(
NativeHandle,
queue.NativeHandle,
ref MamaBasicSubscription.mCallbackDelegates,
source.NativeHandle,
symbol,
impl));
}
