le_data_interface.h File Reference

Interface name string length. One extra byte is added for the null character.

Interface name string length.

Handler for connection state changes

Parameters

intfName	Interface name for the data connection
isConnected	State: connected or disconnected
contextPtr

Reference type used by Add/Remove functions for EVENT 'le_data_ConnectionState'

Reference returned by Request function and used by Release function

Technologies.

Add handler function for EVENT 'le_data_ConnectionState'

This event provides information on connection state changes

Parameters

[in]	handlerPtr
[in]	contextPtr

Connect the current client thread to the service providing this API. Block until the service is available.

For each thread that wants to use this API, either ConnectService or TryConnectService must be called before any other functions in this API. Normally, ConnectService is automatically called for the main thread, but not for any other thread. For details, see Client-specific Functions.

This function is created automatically.

Disconnect the current client thread from the service providing this API.

Normally, this function doesn't need to be called. After this function is called, there's no longer a connection to the service, and the functions in this API can't be used. For details, see Client-specific Functions.

This function is created automatically.

Get the first technology to use

Returns

• One of the technologies from le_data_Technology_t enumerator if the list is not empty
• LE_DATA_MAX if the list is empty

Get the next technology to use

Returns

• One of the technologies from le_data_Technology_t enumerator if the list is not empty
• LE_DATA_MAX if the list is empty or the end of the list is reached

Get the technology currently used for the default data connection

Returns

• One of the technologies from le_data_Technology_t enumerator
• LE_DATA_MAX if the current technology is not set

Note

The supported technologies are LE_DATA_WIFI and LE_DATA_CELLULAR

Release a previously requested data connection

Parameters

[in]

requestRef

Reference to a previously requested data connection

Remove handler function for EVENT 'le_data_ConnectionState'

Parameters

[in]

addHandlerRef

Request the default data connection

Returns

• Reference to the data connection (to be used later for releasing the connection)
• NULL if the data connection requested could not be processed

Set the rank of the technology used for the data connection service

Returns

• LE_OK if the technology is added to the list
• LE_BAD_PARAMETER if the technology is unknown
• LE_UNSUPPORTED if the technology is not available

Parameters

[in]	rank	Rank of the used technology
[in]	technology	Technology

Try to connect the current client thread to the service providing this API. Return with an error if the service is not available.

For each thread that wants to use this API, either ConnectService or TryConnectService must be called before any other functions in this API. Normally, ConnectService is automatically called for the main thread, but not for any other thread. For details, see Client-specific Functions.

This function is created automatically.

Returns

• LE_OK if the client connected successfully to the service.
• LE_UNAVAILABLE if the server is not currently offering the service to which the client is bound.
• LE_NOT_PERMITTED if the client interface is not bound to any service (doesn't have a binding).
• LE_COMM_ERROR if the Service Directory cannot be reached.