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transport.h File Reference
#include "mama/types.h"
#include "mama/status.h"
#include "mama/subscription.h"
#include "mama/msg.h"
#include "mama/symbolmap.h"
#include "mama/quality.h"

Go to the source code of this file.

Typedefs

typedef void(MAMACALLTYPE * mamaTransportCB )(mamaTransport tport, mamaTransportEvent, short cause, const void *platformInfo, void *closure)
 Invoked when transport disconnects, reconnects, or has a data quality event. More...
 
typedef void(MAMACALLTYPE * mamaTransportTopicCB )(mamaTransport tport, mamaTransportTopicEvent event, const char *topic, const void *platformInfo, void *closure)
 Invoked when topic is subscribed ot unsubcribed on that transport. More...
 
typedef void(* mamaTransportLbInitialCB )(int numTransports, int *transportIndex)
 
typedef void(* mamaTransportLbCB )(int curTransportIndex, int numTransports, const char *source, const char *symbol, int *nextTransportIndex)
 

Enumerations

enum  mamaTransportEvent {
  MAMA_TRANSPORT_CONNECT, MAMA_TRANSPORT_CONNECT_FAILED, MAMA_TRANSPORT_RECONNECT, MAMA_TRANSPORT_DISCONNECT,
  MAMA_TRANSPORT_ACCEPT, MAMA_TRANSPORT_ACCEPT_RECONNECT, MAMA_TRANSPORT_PUBLISHER_DISCONNECT, MAMA_TRANSPORT_QUALITY,
  MAMA_TRANSPORT_NAMING_SERVICE_CONNECT, MAMA_TRANSPORT_NAMING_SERVICE_DISCONNECT, MAMA_TRANSPORT_WRITE_QUEUE_HIGH_WATER_MARK, MAMA_TRANSPORT_WRITE_QUEUE_LOW_WATER_MARK
}
 MAMA passes this enumeration as a parameter to the mamaTransportCB if a client installs one. More...
 
enum  mamaTransportTopicEvent { MAMA_TRANSPORT_TOPIC_SUBSCRIBED, MAMA_TRANSPORT_TOPIC_UNSUBSCRIBED }
 MAMA passes this enumeration as a parameter to the mamaTransportTopicCB if a client installs one. More...
 
enum  tportLbScheme { TPORT_LB_SCHEME_STATIC, TPORT_LB_SCHEME_ROUND_ROBIN, TPORT_LB_SCHEME_API, TPORT_LB_SCHEME_LIBRARY }
 Enum to represent the different load balancing schemes available. More...
 
enum  mamaThrottleInstance { MAMA_THROTTLE_DEFAULT = 0, MAMA_THROTTLE_INITIAL = 1, MAMA_THROTTLE_RECAP = 2 }
 Enum to determine to which throttle a call applies. More...
 

Functions

MAMAExpDLL const char * mamaTransportEvent_toString (mamaTransportEvent event)
 Return a text description of the transport event. More...
 
MAMAExpDLL mama_status mamaTransport_setTransportCallback (mamaTransport transport, mamaTransportCB callback, void *closure)
 Set the transport callback. More...
 
MAMAExpDLL mama_status mamaTransport_setWriteQueueWatermarks (mamaTransport transport, uint32_t highWater, uint32_t lowWater)
 Set the transport write queue high and low water mark values. More...
 
MAMAExpDLL mama_status mamaTransport_setTransportTopicCallback (mamaTransport transport, mamaTransportTopicCB callback, void *closure)
 Set the transport topic callback. More...
 
MAMAExpDLL mama_status mamaTransport_allocate (mamaTransport *result)
 Allocate a transport structure. More...
 
MAMAExpDLL mama_status mamaTransport_create (mamaTransport transport, const char *name, mamaBridge bridgeImpl)
 Create a previously allocated transport. More...
 
MAMAExpDLL mama_status mamaTransport_setName (mamaTransport transport, const char *name)
 Set the transport name. More...
 
MAMAExpDLL mama_status mamaTransport_getName (mamaTransport transport, const char **result)
 Get the transport name. More...
 
MAMAExpDLL const char * mamaTransport_getMiddleware (mamaTransport transport)
 
MAMAExpDLL mama_status mamaTransport_getOutboundThrottle (mamaTransport transport, mamaThrottleInstance instance, double *result)
 Get the outbound throttle rate. More...
 
MAMAExpDLL void mamaTransport_disableRefresh (mamaTransport transport, uint8_t disable)
 Disable Refreshing. More...
 
MAMAExpDLL mama_status mamaTransport_setOutboundThrottle (mamaTransport transport, mamaThrottleInstance instance, double outboundThrottle)
 Set the throttle rate. More...
 
MAMAExpDLL void mamaTransport_setSymbolMapFunc (mamaTransport transport, mamaSymbolMapFunc mapFunc, void *closure)
 Set the symbol mapping function for a mamaTransport. More...
 
MAMAExpDLL mamaSymbolMapFunc mamaTransport_getSymbolMapFunc (mamaTransport transport)
 Return the symbol mapping function for a mamaTransport. More...
 
MAMAExpDLL voidmamaTransport_getSymbolMapFuncClosure (mamaTransport transport)
 Return the symbol mapping function closure for a mamaTransport. More...
 
MAMAExpDLL mama_status mamaTransport_setDescription (mamaTransport transport, const char *description)
 Set the description for this transport. More...
 
MAMAExpDLL mama_status mamaTransport_getDescription (mamaTransport transport, const char **description)
 Get the description attribute for the specified transport. More...
 
MAMAExpDLL mama_status mamaTransport_setInvokeQualityForAllSubscs (mamaTransport transport, int invokeQualityForAllSubscs)
 Set whether to invoke the quality callback for all subscriptions whenever a data quality event occurs (the default), or whether to invoke the quality callback only when data subsequently arrives for a subscription. More...
 
MAMAExpDLL mama_status mamaTransport_getInvokeQualityForAllSubscs (const mamaTransport transport, int *invokeQualityForAllSubscs)
 Get whether the transport has been set to invoke the quality callback for all subscriptions whenever a data quality event occurs. More...
 
MAMAExpDLL mama_status mamaTransport_getQuality (const mamaTransport transport, mamaQuality *quality)
 Get the quality of data for the transport. More...
 
MAMAExpDLL mama_status mamaTransport_destroy (mamaTransport transport)
 Destroy the transport. More...
 
MAMAExpDLL mama_status mamaTransport_findConnection (mamaTransport transport, mamaConnection *result, const char *ipAddress, uint16_t port)
 Find a connection with specified IP Address and Port. More...
 
MAMAExpDLL mama_status mamaTransport_getAllConnections (mamaTransport transport, mamaConnection **result, uint32_t *len)
 Return a list of all clients connected to this transport. More...
 
MAMAExpDLL mama_status mamaTransport_getAllConnectionsForTopic (mamaTransport transport, const char *topic, mamaConnection **result, uint32_t *len)
 Return a list of all clients connected to this transport for a topic. More...
 
MAMAExpDLL mama_status mamaTransport_freeAllConnections (mamaTransport transport, mamaConnection *result, uint32_t len)
 Free resources allocated by mamaTransport_getAllConnections(). More...
 
MAMAExpDLL mama_status mamaTransport_getAllServerConnections (mamaTransport transport, mamaServerConnection **result, uint32_t *len)
 Return a list of all servers connected to this transport. More...
 
MAMAExpDLL mama_status mamaTransport_freeAllServerConnections (mamaTransport transport, mamaServerConnection *result, uint32_t len)
 Free resources allocated by mamaTransport_getAllServerConnections(). More...
 
MAMAExpDLL mama_status mamaTransport_setLbInitialCallback (mamaTransport transport, mamaTransportLbInitialCB callback)
 Set the callback which will decide which member of the load balancing group to use initially. More...
 
MAMAExpDLL mama_status mamaTransport_setLbCallback (mamaTransport transport, mamaTransportLbCB callback)
 Set the callback which will allocate the next member of the load balancing group to use. More...
 
MAMAExpDLL mama_status mamaTransport_requestConflation (mamaTransport transport)
 Request that publishers conflate incoming messages. More...
 
MAMAExpDLL mama_status mamaTransport_requestEndConflation (mamaTransport transport)
 Request that publishers stop conflating incoming messages for this transport. More...
 
MAMAExpDLL mama_status mamaTransport_setDeactivateSubscriptionOnError (mamaTransport transport, int deactivate)
 
MAMAExpDLL int mamaTransport_getDeactivateSubscriptionOnError (mamaTransport transport)
 
MAMAExpDLL mama_status mamaTransport_getNativeTransport (mamaTransport transport, int index, void **nativeTport)
 Return a pointer tothe underlying native transport. More...
 
MAMAExpDLL mama_status mamaTransport_getNativeTransportNamingCtx (mamaTransport transport, int index, void **nativeTportNamingCtx)
 Return a pointer to the underlying native naming context the transport is using. More...
 
MAMAExpDLL mamaStatsCollector mamaTransport_getStatsCollector (mamaTransport transport)
 
MAMAExpDLL mama_status mamaTransport_getClosure (mamaTransport transport, void **closure)
 Return the closure. More...
 
MAMAExpDLL mama_status mamaTransport_setClosure (mamaTransport transport, void *closure)
 Set a closure. More...
 

Typedef Documentation

typedef void(MAMACALLTYPE * mamaTransportCB)(mamaTransport tport, mamaTransportEvent, short cause, const void *platformInfo, void *closure)

Invoked when transport disconnects, reconnects, or has a data quality event.

Parameters
tportThe transport associated with the transport event
mamaTransportEventThe transport event
causeThe cause of the transport event
platformInfoInfo associated with the transport event
closureThe closure argument to pass to the callback whenever it is invoked.

The cause and platformInfo are supplied only by some middlewares. The information provided by platformInfo is middleware specific. The following middlewares are supported:

tibrv: provides the char* version of the tibrv advisory message. wmw: provides a pointer to a mamaConnection struct for the event

typedef void(MAMACALLTYPE * mamaTransportTopicCB)(mamaTransport tport, mamaTransportTopicEvent event, const char *topic, const void *platformInfo, void *closure)

Invoked when topic is subscribed ot unsubcribed on that transport.

Parameters
tportThe transport associated with the transport topic event
mamaTransportTopicEventThe transport topic event
topicThe topic being subscribed or unsubscribed to
platformInfoInfo associated with the transport topicevent
closureThe closure argument to pass to the callback whenever it is invoked.

The platformInfo is supplied only by some middlewares. The information provided by platformInfo is middleware specific. The following middlewares are supported:

wmw: provides a pointer to a mamaConnection struct for the event

typedef void(* mamaTransportLbInitialCB)(int numTransports, int *transportIndex)
typedef void(* mamaTransportLbCB)(int curTransportIndex, int numTransports, const char *source, const char *symbol, int *nextTransportIndex)

Enumeration Type Documentation

MAMA passes this enumeration as a parameter to the mamaTransportCB if a client installs one.

The values passed depend on the underlying middleware:

All Middleware: MAMA_TRANSPORT_QUALITY is passed when an the underlying transport detects an event that may affect data quality. Depending on the event, MAMA may also mark subscriptions as STALE or MAYBE_STALE.

TIBRV: TIBRV invokes the callback with MAMA_TRANSPORT_DISCONNECT when the transport disconnects from the RV daemon and MAMA_TRANSPORT_RECONNECT when it reestablishes a connection to the daemon.

Wombat Middleware: For Wombat Middleware MAMA distinguishes between connections established from a transport to another transport and connections established by the transport from another transport. In general MAMA applications establish connection from a MAMA transport to a feed handler (publisher); however, they may also accept connections from other MAMA clients. Applications subscribe to topics and publisher messages over all connections. When a transport successfully connects to another transport (i.e. a feed handler) the mamaTransportCallback receives MAMA_TRANSPORT_CONNECT if the connection succeeds immediately otherwise it receives a MAMA_TRANSPORT_RECONNECT if it subsequently succeeds. Wombat Middleware transports may be configured to retry failed connections. When a connection that a transport establishes to another transport (the publisher by convention) and the connection is lost the mamaTranpsortCallback receives the MAMA_TRANSPORT_PUBLISHER_DISCONNECT event. When a transport accepts a connection from a remote transport (the subscriber by convention) it receives either a MAMA_TRANSPORT_ACCEPT or MAMA_TRANSPORT_ACCEPT_RECONNECT event indicating that the remote client is connecting or reconnecting. When the client disconnects MAMA passes the MAMA_TRANSPORT_DISCONNECT value.

Enumerator
MAMA_TRANSPORT_CONNECT 
MAMA_TRANSPORT_CONNECT_FAILED 
MAMA_TRANSPORT_RECONNECT 
MAMA_TRANSPORT_DISCONNECT 
MAMA_TRANSPORT_ACCEPT 
MAMA_TRANSPORT_ACCEPT_RECONNECT 
MAMA_TRANSPORT_PUBLISHER_DISCONNECT 
MAMA_TRANSPORT_QUALITY 
MAMA_TRANSPORT_NAMING_SERVICE_CONNECT 
MAMA_TRANSPORT_NAMING_SERVICE_DISCONNECT 
MAMA_TRANSPORT_WRITE_QUEUE_HIGH_WATER_MARK 
MAMA_TRANSPORT_WRITE_QUEUE_LOW_WATER_MARK 

MAMA passes this enumeration as a parameter to the mamaTransportTopicCB if a client installs one.

Wombat Middleware: For connection based transports an event is invoked when a client makes a subscription to a topic on a transport or unsubscribes from a topic on a transport.

Enumerator
MAMA_TRANSPORT_TOPIC_SUBSCRIBED 
MAMA_TRANSPORT_TOPIC_UNSUBSCRIBED 

Enum to represent the different load balancing schemes available.

TPORT_LB_SCHEME_STATIC - keep the same lb sub tport for each subscription. TPORT_LB_SCHEME_ROUND_ROBIN - round robin between the members of the lb group for each subscription TPORT_LB_SCHEME_API - let the user defined load balancing callback(s) decide. TPORT_LB_SCHEME_LIBRARY - use the load balancing in a external library

Enumerator
TPORT_LB_SCHEME_STATIC 
TPORT_LB_SCHEME_ROUND_ROBIN 
TPORT_LB_SCHEME_API 
TPORT_LB_SCHEME_LIBRARY 

Enum to determine to which throttle a call applies.

Currently, the the default throttle, used by the publisher, and the initial value request throttle are the same. Mama sends recap requests on a separate throttle.

Enumerator
MAMA_THROTTLE_DEFAULT 
MAMA_THROTTLE_INITIAL 
MAMA_THROTTLE_RECAP 

Function Documentation

MAMAExpDLL const char* mamaTransportEvent_toString ( mamaTransportEvent  event)

Return a text description of the transport event.

MAMAExpDLL mama_status mamaTransport_setTransportCallback ( mamaTransport  transport,
mamaTransportCB  callback,
void closure 
)

Set the transport callback.

It receives advisories when a transport disconnects or reconnects. Passing NULL removes the callback.

MAMAExpDLL mama_status mamaTransport_setWriteQueueWatermarks ( mamaTransport  transport,
uint32_t  highWater,
uint32_t  lowWater 
)

Set the transport write queue high and low water mark values.

The MAMA_TRANSPORT_WRITE_QUEUE_HIGH_WATER_MARK and MAMA_TRANSPORT_WRITE_QUEUE_HIGH_WATER_MARK events will be delivered though the transport callback when the respective number of items are outstanding on a clients write queue.

MAMAExpDLL mama_status mamaTransport_setTransportTopicCallback ( mamaTransport  transport,
mamaTransportTopicCB  callback,
void closure 
)

Set the transport topic callback.

It receives advisories when a client subscribes or unsubscribes to a topic on the transport

MAMAExpDLL mama_status mamaTransport_allocate ( mamaTransport result)

Allocate a transport structure.

Do not free this memory, use mamaTransport_destroy() instead. The transport is not created until mamaTransport_create() is called. Any transport properties should be set after calling allocate() and prior to calling create()

Parameters
resultThe address to where the transport will be written.
MAMAExpDLL mama_status mamaTransport_create ( mamaTransport  transport,
const char *  name,
mamaBridge  bridgeImpl 
)

Create a previously allocated transport.

Platform specific parameters are read from the properties file mama.properties. The properties file is located in the WOMBAT_PATH directory. The parameters are dependent on the underlying messaging transport.

TIBRV: transports support the following: mama.tibrv.transport.name.service, mama.tibrv.transport.name.network, and mama.tibrv.transport.name.daemon. These correspond to the parameters for tibrvTransport_Create().

LBM: See the example mama.properties supplied with the release.

Parameters
transportThe previously allocated transport.
nameThe name of the transport in the mama.properties file.
bridgeImplThe middleware for which the transport is being created.
MAMAExpDLL mama_status mamaTransport_setName ( mamaTransport  transport,
const char *  name 
)

Set the transport name.

This can be used to set the name without calling mamaTransport_create()

Parameters
transportThe transport from which the name is being obtained.
nameThe name of the transport in the mama.properties file.
MAMAExpDLL mama_status mamaTransport_getName ( mamaTransport  transport,
const char **  result 
)

Get the transport name.

This the name that was passed to the mamaTransport_create() or mamaTransport_setName() function.

Parameters
transportThe transport from which the name is being obtained.
resultPointer to the transport name string.
MAMAExpDLL const char* mamaTransport_getMiddleware ( mamaTransport  transport)
MAMAExpDLL mama_status mamaTransport_getOutboundThrottle ( mamaTransport  transport,
mamaThrottleInstance  instance,
double *  result 
)

Get the outbound throttle rate.

This the rate at which the transport sends outbound messages to the feed handlers. It is also the rate at which new subscriptions are created. Its purpose is to avoid flooding the network with requests.

Parameters
transportthe transport.
instancethe instance
resultPointer to the resulting value in messages/second.
MAMAExpDLL void mamaTransport_disableRefresh ( mamaTransport  transport,
uint8_t  disable 
)

Disable Refreshing.

Parameters
transportthe transport instance
disablet/f.
MAMAExpDLL mama_status mamaTransport_setOutboundThrottle ( mamaTransport  transport,
mamaThrottleInstance  instance,
double  outboundThrottle 
)

Set the throttle rate.

Parameters
transportthe transport.
instancethe instance
outboundThrottlethe rate in messages/second.
MAMAExpDLL void mamaTransport_setSymbolMapFunc ( mamaTransport  transport,
mamaSymbolMapFunc  mapFunc,
void closure 
)

Set the symbol mapping function for a mamaTransport.

Parameters
transportThe transport.
mapFuncThe symbol mapping function.
closureThe closure argument to pass to mappingFunc whenever it is invoked.
MAMAExpDLL mamaSymbolMapFunc mamaTransport_getSymbolMapFunc ( mamaTransport  transport)

Return the symbol mapping function for a mamaTransport.

Parameters
transportThe transport.
Returns
The symbol mapping function (could be NULL).
MAMAExpDLL void* mamaTransport_getSymbolMapFuncClosure ( mamaTransport  transport)

Return the symbol mapping function closure for a mamaTransport.

Parameters
transportThe transport.
Returns
The symbol mapping function closure (could be NULL).
MAMAExpDLL mama_status mamaTransport_setDescription ( mamaTransport  transport,
const char *  description 
)

Set the description for this transport.

If the underlying middleware supports the concept of a description the values will be passed on. Otherwise MAMA will maintain the description internally.

Parameters
transportThe transport.
descriptionThe description for the transport. This will be copied.
MAMAExpDLL mama_status mamaTransport_getDescription ( mamaTransport  transport,
const char **  description 
)

Get the description attribute for the specified transport.

Note that a copy of the description is not returned. Do not change or free this memory.

Parameters
transportThe transport
descriptionThe address to where the description will be written.
MAMAExpDLL mama_status mamaTransport_setInvokeQualityForAllSubscs ( mamaTransport  transport,
int  invokeQualityForAllSubscs 
)

Set whether to invoke the quality callback for all subscriptions whenever a data quality event occurs (the default), or whether to invoke the quality callback only when data subsequently arrives for a subscription.

If set to true, an onQuality callback will be invoked for a subscription whenever a data quality event occurs on the transport, even in between updates for that description. If set to false, the onQuality callback will not be called when the data quality event occurs on the transport. However, it will still be invoked when an update arrives for the subscription.

Parameters
transportThe transport
invokeQualityForAllSubscsWhether to invoke quality callback for all subscriptions
MAMAExpDLL mama_status mamaTransport_getInvokeQualityForAllSubscs ( const mamaTransport  transport,
int *  invokeQualityForAllSubscs 
)

Get whether the transport has been set to invoke the quality callback for all subscriptions whenever a data quality event occurs.

Parameters
transportThe transport
invokeQualityForAllSubscsWhether transport has been set to invoke quality callback for all subscriptions
MAMAExpDLL mama_status mamaTransport_getQuality ( const mamaTransport  transport,
mamaQuality quality 
)

Get the quality of data for the transport.

Currently only implemented for the Tibco RV middleware. Other middlewares always return STATUS_OK

Parameters
transportThe transport
qualityThe quality of data for the transport
MAMAExpDLL mama_status mamaTransport_destroy ( mamaTransport  transport)

Destroy the transport.

Parameters
transportthe transport.
MAMAExpDLL mama_status mamaTransport_findConnection ( mamaTransport  transport,
mamaConnection result,
const char *  ipAddress,
uint16_t  port 
)

Find a connection with specified IP Address and Port.

If the port is 0, the call returns the first connection with the specified IP Address. If a connection is not found the method returns MAMA_STATUS_NOT_FOUND and *result == NULL. The caller is responsible for calling mamaConnection_free().

For middleware that does not provide access to per-connection information (non WMW middleware), the method returns MAMA_STATUS_NOT_IMPL.

MAMAExpDLL mama_status mamaTransport_getAllConnections ( mamaTransport  transport,
mamaConnection **  result,
uint32_t *  len 
)

Return a list of all clients connected to this transport.

The result and len must be passed to mamaTransport_freeAllConnections() to free resources allocated by this function.

MAMAExpDLL mama_status mamaTransport_getAllConnectionsForTopic ( mamaTransport  transport,
const char *  topic,
mamaConnection **  result,
uint32_t *  len 
)

Return a list of all clients connected to this transport for a topic.

The result and len must be passed to mamaTransport_freeAllConnections() to free resources allocated by this function.

MAMAExpDLL mama_status mamaTransport_freeAllConnections ( mamaTransport  transport,
mamaConnection result,
uint32_t  len 
)

Free resources allocated by mamaTransport_getAllConnections().

MAMAExpDLL mama_status mamaTransport_getAllServerConnections ( mamaTransport  transport,
mamaServerConnection **  result,
uint32_t *  len 
)

Return a list of all servers connected to this transport.

The result and len must be passed to mamaTransport_freeAllServerConnections() to free resources allocated by this function.

MAMAExpDLL mama_status mamaTransport_freeAllServerConnections ( mamaTransport  transport,
mamaServerConnection result,
uint32_t  len 
)

Free resources allocated by mamaTransport_getAllServerConnections().

MAMAExpDLL mama_status mamaTransport_setLbInitialCallback ( mamaTransport  transport,
mamaTransportLbInitialCB  callback 
)

Set the callback which will decide which member of the load balancing group to use initially.

If no callback is set then one will be chosen at random.

MAMAExpDLL mama_status mamaTransport_setLbCallback ( mamaTransport  transport,
mamaTransportLbCB  callback 
)

Set the callback which will allocate the next member of the load balancing group to use.

The callback, if set, will be invoked for each new subscription. If no callback is set then the currently selected member the same one will be used for all subscriptions

MAMAExpDLL mama_status mamaTransport_requestConflation ( mamaTransport  transport)

Request that publishers conflate incoming messages.

Publishers that support conflation (currently only Wombat TCP middleware) will enable conflation for this transport if possible.

MAMAExpDLL mama_status mamaTransport_requestEndConflation ( mamaTransport  transport)

Request that publishers stop conflating incoming messages for this transport.

Publishers that support conflation (currently only Wombat TCP middleware) will stop conflating messages if possible. Note that the publisher may continue to send conflated messages at its discretion.

MAMAExpDLL mama_status mamaTransport_setDeactivateSubscriptionOnError ( mamaTransport  transport,
int  deactivate 
)
MAMAExpDLL int mamaTransport_getDeactivateSubscriptionOnError ( mamaTransport  transport)
MAMAExpDLL mama_status mamaTransport_getNativeTransport ( mamaTransport  transport,
int  index,
void **  nativeTport 
)

Return a pointer tothe underlying native transport.

Applications should avoid this method if possible as it may result in non-portable, middleware specific code. Callers must cast the nativeTport to the appropriate type (ie. tibrvTransport*).

Only implemented for TIBRV.

MAMAExpDLL mama_status mamaTransport_getNativeTransportNamingCtx ( mamaTransport  transport,
int  index,
void **  nativeTportNamingCtx 
)

Return a pointer to the underlying native naming context the transport is using.

Applications should avoid this method if possible as it may result in non-portable, middleware specific code. Callers must cast the native naming context to the appropriate type (ie. wmwns*).

Only implemented for WMW version 5 and above.

MAMAExpDLL mamaStatsCollector mamaTransport_getStatsCollector ( mamaTransport  transport)
MAMAExpDLL mama_status mamaTransport_getClosure ( mamaTransport  transport,
void **  closure 
)

Return the closure.

Parameters
transportThe transport.
closureholds the result.
MAMAExpDLL mama_status mamaTransport_setClosure ( mamaTransport  transport,
void closure 
)

Set a closure.

Parameters
transportThe transport.
closureholds the closure to be added.


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