Studio:Transport Server Component

The Transport Server

The Transport Server fields client requests to a target. The client communicates to the Transport Server. The Transport Server communicates to the target runtime of a target.

To access the transport server, a client first registers with to it using a process id (PID). This is done transparently for script clients using the script wrapper named STRIDE.transport.

transport._TSEvents

This is an outgoing connection point interface that is optionally implemented by clients that wish to be notified of connection related events.

Member	Type	Description
HRESULT OnConnect (void)	Method	Event method fired when the transport connection state changes from disconnected to connected.
HRESULT OnDisconnect (void)	Method	Event method fired when the transport connection state changes from connected to disconnected.
HRESULT OnEvent (    TSEventType type,    TSEventLevel level,    String message )	Method	Event method fired when there is a reportable event in the transport communication.

transport.Connection

This is the root object for all connection-related functionality.

Member	Type	Description
ActiveTransport	Object	Returns the current active transport object or null if none is active.
bool Connect (    int timeout [optional],    bool* stat )	Method	Attempts to create a runtime connection to a target using the active transport. The timeout value (in milliseconds) is passed to the runtime connection request and it fails if timeout is exceeded. Default timeout is 5 seconds (5000). Returns true if connection succeeded, false if either the transport or runtime connection failed.
boolConnectAsync(    bool monitor[optional],    int transportTimeout[optional],    int runtimeTimeout,     bool* stat )	Method	Makes an asynchronous connection request. A background thread is started to attempt to establish the connection. If monitor is true, the thread will run continuously and attempt to reconnect whenever the connection is lost. If monitor is false (the default) the background thread will exit once a connection is initially established.
Database	Object	Database settings.
bool Disconnect (    bool* stat )	Method	Attempts to disconnect the runtime and the transport from the target. Returns true if successfully disconnected.
bool DisconnectAsync (    bool* stat )	Method	Initiates the request to disconnect from the target, but does not wait fo an acknowledgement of the disconnect request from runtime. Returns true if disconnect request initiated.
IBlockDataDump	Property, bool	Turns IBlock dumps on or off. Default is off. If enabled, all IBlocks that are sent and received will be dumped to the STRIDE application log and to a predefined tracepoint.
IsConnected	Property, Read-only, bool	Returns the current connection state.
Loopback	Object	Loopback settings.
Statistics	Object	Statistics settings.
TargetRuntimeVersion	Property, string	Returns the runtime version string.
Ping	Object	Ping settings.
Transports	Collection	Collection of transports.
TransportsLocation	Property, string	Sets/gets the current directory for transport DLLs. Changing this value will immediately change the values in the Transports collection and will cause the current connection (if any) to be closed.
TransportDataDump	Property, bool	Turns raw data dumps on or off. Default is off. If enabled, all SLAP messages that are sent and received by the transport will be dumped to the STRIDE application log and to a predefined tracepoint.

transport.Connection.Database

This is the interface for database settings.

Member	Type	Description
IsLoaded	Property, Read-only, bool	Returns true if the database is loaded.
HRESULTLoad (    String FullPath,    bool stat )	Method	Loads the database.
Path	Property, Read-only, String	Returns the path to the database.
HRESULTUnload (    bool stat )	Method	Unloads the database.

transport.Connection.Loopback

This is the interface for loopback settings.

Member	Type	Description
DataErrors	Property, Read-only, unsigned long	Contains the number of data errors.
Interval	Property, unsigned long	The interval value in milliseconds.
Sent	Property, Read-only, unsigned long	Contains the number of loopbacks attempted.
HRESULTStart(    bool* pVal )	Method	Start the loopback processing.
HRESULTStop(    bool* pVal )	Method	Stops the loopback processing.
Timeout	Property, unsigned long	The timeout value in milliseconds.
TimeoutErrors	Property, Read-only, unsigned long	Contains the number of timeout errors.

transport.Connection.Ping

This is the interface for ping settings. All ping settings are automatically persisted in the registry and restored when the transport server is instantiated.

Member	Type	Description
Enabled	Property, bool	Turns the runtime ping messages on or off. This setting is persisted and restored automatically.
Interval	Property, integer	Sets/gets the time interval between ping messages, in milliseconds.
RetryCount	Property, integer	Sets/gets the number of allowable ping failures. Once this number if exceeded, the connection will be closed automatically.
Timeout	Property, integer	Sets/gets the timeout value for the ping message in milliseconds. If a response is not received within this time, the ping fails.

transport.Connection.Statistics

This is the interface for statistic settings.

Member	Type	Description
IBlocks	Collection	Collection of IBlock statistics.
SequenceErrors	Collection	Collection of Sequence Errors statistics.
TargetResources	Collection	Collection of Target Resource statistics.

transport.Connection.Statistics.IBlocks

This is the interface for IBlock settings.

Member	Type	Description
Sent	Property, Read-only, unsigned long	The number of IBlocks sent.
Received	Property, Read-only, unsigned long	The number of IBlocks received.
HRESULT Reset (void)	Method	Resets the counts to zero.

transport.Connection.Statistics.SequenceErrors

This is the interface for sequence error settings.

Member	Type	Description
Host	Property, Read-only, unsigned long	Number of Host errors.
HRESULT Reset (void)	Method	Resets the host/target sequence error counts.
Target	Property, Read-only, unsigned long	Number of Target errors.
HRESULT Update (void)	Method	Updates the host/target error counts.

transport.Connection.Statistics.TargetResources

This is the interface for the target resource settings

Member	Type	Description
EmbeddedPointers	Property, Read-only, unsigned long	Contains the number of embedded pointers.
MessageQueue	Property, Read-only, unsigned long	Contains the number of message queues.
HRESULT Reset (void)	Method	Resets the counts.
STIDs	Property, Read-only, unsigned long	Contains the number of STIDs.
Subscribers	Property, Read-only, unsigned long	Contains the number of subscribers.
SUIDs	Property, Read-only, unsigned long	Contains the number of SUIDs.
SUIDFilters	Property, Read-only, unsigned long	Contains the number of SUID filters.
SUIDOverrides	Property, Read-only, unsigned long	Contains the number of SUID overrides.
HRESULT Update (void)	Method	Updates the counts to their current value.

transport.Connection.Transports

This is the collection of currently available transports.

Member	Type	Description
long Count (void)	Property, Read-only, integer	Gives the number of transport items in the collection.
Object Item (    variant index )	Method	Returns the specified transport item. Index can be a zero-based integer value or a string representing the name of the transport. Each transport advertises a unique name via its API and that’s what we use as the string keys. As per our usual policy, out-of-range integer indices will generate exceptions and out-of-range string indices will return null.

transport.Connection.Transports.Item

This is the interface associated with each transport object.

Member	Type	Description
Active	Property, bool	Sets/gets the active status of the transport. Only one transport can be active at any given time, so setting this to true for a transport that is not already active will cause the current active transport to be disconnected. Setting this property to true when the item is already active is a no-op.
File	Property, Read-only, String	Gets the full file path and name for the corresponding transport DLL.
Name	Property, Read-only, String	Gets the name of the transport item.
Properties	Collection	Collection of properties.

transport.Connection.Transports.Properties

This is the collection of properties for a given transport.

Member	Type	Description
long Count (void)	Property, Read-only, integer	Gives the number of properties in the collection.
Object Item (    variant index )	Method	Returns the specified property item. Index can be a zero-based integer value or a string representing the name of the property. As per our usual policy, out-of-range integer indices will generate exceptions and out-of-range string indices will return null.

transport.Connection.Transports.Properties.Item

This is the interface for a specific transport property.

Member	Type	Description
AllowableValues	Property, Read-only, String	Gets a pipe-delimited string where each delimited value represents an allowable value for the property. Clients might use this to restrict or validate input.
Name	Property, Read-only, String	The name of the property item.
Value	Property, String	The value of the property. When set, the validation method of the transport will be called. Any failures in validation will be returned as exceptions here.