Snapdragon® Telematics Application Framework (TelAF) Interface Specification
taf_mngdConn_client.c File Reference

Data Structures

struct  _ClientThreadData_t
 

Macros

#define LOCK_INIT   le_mutex_Lock(le_ifgen_InitMutexRef);
 Locks the mutex. More...
 
#define UNLOCK_INIT   le_mutex_Unlock(le_ifgen_InitMutexRef);
 Unlocks the mutex. More...
 

Functions

 LE_MEM_DEFINE_STATIC_POOL (taf_mngdConn_ClientThreadData, LE_CDATA_COMPONENT_COUNT, sizeof(_ClientThreadData_t))
 
static le_result_t InitClientForThread (bool isBlocking)
 
static _ClientThreadData_tGetClientThreadDataPtr (void)
 
 __attribute__ ((unused))
 
static void ClientThreadDestructor (void *objPtr)
 
static void InitCommonData (void)
 
static le_result_t DoConnectService (bool isBlocking)
 
void taf_mngdConn_ConnectService (void)
 
le_result_t taf_mngdConn_TryConnectService (void)
 
static void SessionCloseHandler (le_msg_SessionRef_t sessionRef, void *contextPtr)
 
void taf_mngdConn_SetServerDisconnectHandler (taf_mngdConn_DisconnectHandler_t disconnectHandler, void *contextPtr)
 
static void NonExitSessionCloseHandler (le_msg_SessionRef_t sessionRef, void *contextPtr)
 
void taf_mngdConn_SetNonExitServerDisconnectHandler (taf_mngdConn_DisconnectHandler_t disconnectHandler, void *contextPtr)
 
void taf_mngdConn_DisconnectService (void)
 
taf_mngdConn_DataStateHandlerRef_t taf_mngdConn_AddDataStateHandler (taf_mngdConn_DataRef_t dataRef, taf_mngdConn_DataStateHandlerFunc_t handlerPtr, void *contextPtr)
 
void taf_mngdConn_RemoveDataStateHandler (taf_mngdConn_DataStateHandlerRef_t handlerRef)
 
taf_mngdConn_RecoveryStateHandlerRef_t taf_mngdConn_AddRecoveryStateHandler (taf_mngdConn_RecoveryStateHandlerFunc_t handlerPtr, void *contextPtr)
 
void taf_mngdConn_RemoveRecoveryStateHandler (taf_mngdConn_RecoveryStateHandlerRef_t handlerRef)
 
taf_mngdConn_DataRef_t taf_mngdConn_GetData (uint8_t dataId)
 
taf_mngdConn_DataRef_t taf_mngdConn_GetDataByName (const char *LE_NONNULL dataName)
 
le_result_t taf_mngdConn_GetDataIdByRef (taf_mngdConn_DataRef_t dataRef, uint8_t *dataIdPtr)
 
le_result_t taf_mngdConn_GetDataNameByRef (taf_mngdConn_DataRef_t dataRef, char *dataName, size_t dataNameSize)
 
le_result_t taf_mngdConn_StartData (taf_mngdConn_DataRef_t dataRef)
 
le_result_t taf_mngdConn_StopData (taf_mngdConn_DataRef_t dataRef)
 
le_result_t taf_mngdConn_GetDataConnectionState (taf_mngdConn_DataRef_t dataRef, taf_mngdConn_DataState_t *statePtr)
 
le_result_t taf_mngdConn_GetDataConnectionIPAddresses (taf_mngdConn_DataRef_t dataRef, char *IPv4Addr, size_t IPv4AddrSize, char *IPv6Addr, size_t IPv6AddrSize)
 
le_result_t taf_mngdConn_StartDataRetry (taf_mngdConn_DataRef_t dataRef)
 
le_result_t taf_mngdConn_CancelL1Recovery (taf_mngdConn_DataRef_t dataRef)
 
le_result_t taf_mngdConn_CancelL2Recovery (taf_mngdConn_DataRef_t dataRef)
 

Variables

static le_mem_PoolRef_t _ClientThreadDataPool
 
static pthread_key_t _ThreadDataKey
 
static bool CommonDataInitialized = false
 
le_mutex_Ref_t le_ifgen_InitMutexRef
 

Macro Definition Documentation

◆ LOCK_INIT

#define LOCK_INIT   le_mutex_Lock(le_ifgen_InitMutexRef);

Locks the mutex.

◆ UNLOCK_INIT

#define UNLOCK_INIT   le_mutex_Unlock(le_ifgen_InitMutexRef);

Unlocks the mutex.

Function Documentation

◆ LE_MEM_DEFINE_STATIC_POOL()

LE_MEM_DEFINE_STATIC_POOL ( taf_mngdConn_ClientThreadData  ,
LE_CDATA_COMPONENT_COUNT  ,
sizeof(_ClientThreadData_t  
)

Static pool for client threads.

◆ InitClientForThread()

static le_result_t InitClientForThread ( bool  isBlocking)
static

Initialize thread specific data, and connect to the service for the current thread.

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.

◆ GetClientThreadDataPtr()

static _ClientThreadData_t* GetClientThreadDataPtr ( void  )
static

Get a pointer to the client thread data for the current thread.

If the current thread does not have client data, then NULL is returned

◆ __attribute__()

__attribute__ ( (unused)  )

Return the sessionRef for the current thread.

If the current thread does not have a session ref, then this is a fatal error.

◆ ClientThreadDestructor()

static void ClientThreadDestructor ( void *  objPtr)
static

Destructor function for client thread objects.

◆ InitCommonData()

static void InitCommonData ( void  )
static

Init data that is common across all threads.

◆ DoConnectService()

static le_result_t DoConnectService ( bool  isBlocking)
static

Connect to the service, using either blocking or non-blocking calls.

This function implements the details of the public ConnectService functions.

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.

◆ taf_mngdConn_ConnectService()

void taf_mngdConn_ConnectService ( void  )

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 apiFilesC_client.

This function is created automatically.

◆ taf_mngdConn_TryConnectService()

le_result_t taf_mngdConn_TryConnectService ( void  )

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 apiFilesC_client.

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.

◆ SessionCloseHandler()

static void SessionCloseHandler ( le_msg_SessionRef_t  sessionRef,
void *  contextPtr 
)
static

◆ taf_mngdConn_SetServerDisconnectHandler()

void taf_mngdConn_SetServerDisconnectHandler ( taf_mngdConn_DisconnectHandler_t  disconnectHandler,
void *  contextPtr 
)

Set handler called when server disconnection is detected.

When a server connection is lost, call this handler then exit with LE_FATAL. If a program wants to continue without exiting, it should call longjmp() from inside the handler.

◆ NonExitSessionCloseHandler()

static void NonExitSessionCloseHandler ( le_msg_SessionRef_t  sessionRef,
void *  contextPtr 
)
static

◆ taf_mngdConn_SetNonExitServerDisconnectHandler()

void taf_mngdConn_SetNonExitServerDisconnectHandler ( taf_mngdConn_DisconnectHandler_t  disconnectHandler,
void *  contextPtr 
)

Set handler called when server disconnection is detected without exiting.

When a server connection is lost, call this handler without exit.

Warning
When using the API, it needs the application developer to handle some cases like re-connecting and recycling the resources. For most of cases, it is safe to use SetServerDisconnectHandler.

◆ taf_mngdConn_DisconnectService()

void taf_mngdConn_DisconnectService ( void  )

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 apiFilesC_client.

This function is created automatically.

◆ taf_mngdConn_AddDataStateHandler()

taf_mngdConn_DataStateHandlerRef_t taf_mngdConn_AddDataStateHandler ( taf_mngdConn_DataRef_t  dataRef,
taf_mngdConn_DataStateHandlerFunc_t  handlerPtr,
void *  contextPtr 
)

Add handler function for EVENT 'taf_mngdConn_DataState'

Events to report data state.

Parameters
[in]dataRefThe data reference.
[in]handlerPtrThe event handler reference.
[in]contextPtr

◆ taf_mngdConn_RemoveDataStateHandler()

void taf_mngdConn_RemoveDataStateHandler ( taf_mngdConn_DataStateHandlerRef_t  handlerRef)

Remove handler function for EVENT 'taf_mngdConn_DataState'

Parameters
[in]handlerRef

◆ taf_mngdConn_AddRecoveryStateHandler()

taf_mngdConn_RecoveryStateHandlerRef_t taf_mngdConn_AddRecoveryStateHandler ( taf_mngdConn_RecoveryStateHandlerFunc_t  handlerPtr,
void *  contextPtr 
)

Add handler function for EVENT 'taf_mngdConn_RecoveryState'

Events to report recovery state.

Parameters
[in]handlerPtrThe event handler reference.
[in]contextPtr

◆ taf_mngdConn_RemoveRecoveryStateHandler()

void taf_mngdConn_RemoveRecoveryStateHandler ( taf_mngdConn_RecoveryStateHandlerRef_t  handlerRef)

Remove handler function for EVENT 'taf_mngdConn_RecoveryState'

Parameters
[in]handlerRef

◆ taf_mngdConn_GetData()

taf_mngdConn_DataRef_t taf_mngdConn_GetData ( uint8_t  dataId)

Gets the data reference for the given data ID(as provided in the configuration JSON).

Returns
  • NULL – Error.
  • Others – The data reference.
Parameters
[in]dataIdThe data ID to use.

◆ taf_mngdConn_GetDataByName()

taf_mngdConn_DataRef_t taf_mngdConn_GetDataByName ( const char *LE_NONNULL  dataName)

Gets the data reference for the given data name(as provided in the configuration JSON).

Returns
  • NULL – Error.
  • Others – The data reference.
Parameters
[in]dataNameThe data name to use.

◆ taf_mngdConn_GetDataIdByRef()

le_result_t taf_mngdConn_GetDataIdByRef ( taf_mngdConn_DataRef_t  dataRef,
uint8_t *  dataIdPtr 
)

Gets the data object ID (as provided in the configuration JSON) for the given data reference.

Returns
  • LE_OK – Succeeded.
  • LE_NOT_FOUND – Data reference not found.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.
[out]dataIdPtrThe data object ID from the configuration JSON.

◆ taf_mngdConn_GetDataNameByRef()

le_result_t taf_mngdConn_GetDataNameByRef ( taf_mngdConn_DataRef_t  dataRef,
char *  dataName,
size_t  dataNameSize 
)

Gets the data object name (as provided in the configuration JSON) for the given data reference.

Returns
  • LE_OK – Succeeded.
  • LE_NOT_FOUND – Data reference not found.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.
[out]dataNameThe data object name from the configuration JSON.
[in]dataNameSize

◆ taf_mngdConn_StartData()

le_result_t taf_mngdConn_StartData ( taf_mngdConn_DataRef_t  dataRef)

Starts a data session for the given data reference. This API should be used when the value of "AutoStart" is "No" in the configuration file.

The service tracks clients that call StartData for Data objects with AutoStart:No and is used to manage StopData behavior.

Returns
  • LE_OK – Succeeded.
  • LE_DUPLICATE – The data connection is already started.
  • LE_IN_PROGRESS – The data connection establishment retry is in progress.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.

◆ taf_mngdConn_StopData()

le_result_t taf_mngdConn_StopData ( taf_mngdConn_DataRef_t  dataRef)

Stops a data cellular session for the given data reference.

Data will be stopped only when all clients that have called StartData for data objects with AutoStart:No either stop data or exit.

Returns
  • LE_OK – Succeeded.
  • LE_NOT_PERMITTED – If data is auto started by the service, application cannot stop data.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.

◆ taf_mngdConn_GetDataConnectionState()

le_result_t taf_mngdConn_GetDataConnectionState ( taf_mngdConn_DataRef_t  dataRef,
taf_mngdConn_DataState_t statePtr 
)

Gets the data connection state information for the given data reference.

Returns
  • LE_OK – Succeeded.
  • LE_BAD_PARAMETER – Bad parameter.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.
[out]statePtrThe data state.

◆ taf_mngdConn_GetDataConnectionIPAddresses()

le_result_t taf_mngdConn_GetDataConnectionIPAddresses ( taf_mngdConn_DataRef_t  dataRef,
char *  IPv4Addr,
size_t  IPv4AddrSize,
char *  IPv6Addr,
size_t  IPv6AddrSize 
)

Gets the data connection IP addresses for the given data reference. An empty string is returned if either IP address is not available.

Returns
  • LE_OK – Succeeded.
  • LE_BAD_PARAMETER – Bad parameter.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.
[out]IPv4AddrIPv4 Address.
[in]IPv4AddrSize
[out]IPv6AddrIPv6 Address.
[in]IPv6AddrSize

◆ taf_mngdConn_StartDataRetry()

le_result_t taf_mngdConn_StartDataRetry ( taf_mngdConn_DataRef_t  dataRef)

Starts the data retry mechanism. If data session is connected, the data session will be disconnected before data retry mechanism is started. This function is asynchronous and applications should monitor taf_mngdConn_DataState_t events.

Returns
  • LE_OK – Succeeded.
  • LE_BAD_PARAMETER – Bad parameter.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.

◆ taf_mngdConn_CancelL1Recovery()

le_result_t taf_mngdConn_CancelL1Recovery ( taf_mngdConn_DataRef_t  dataRef)

Cancels a scheduled L1 recovery process. A L1 recovery could be scheduled for one or more data connetions. For a scheduled L1 recovery process to be canceled, this API should be called for all data references for which L1 recovery has been scheduled.

Returns
  • LE_OK – Succeeded.
  • LE_NOT_POSSIBLE – A L1 recovery process has not been scheduled.
  • LE_NOT_PERMITTED – A L1 recovery process has already started.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.

◆ taf_mngdConn_CancelL2Recovery()

le_result_t taf_mngdConn_CancelL2Recovery ( taf_mngdConn_DataRef_t  dataRef)

Cancels a scheduled L2 recovery process. A L2 recovery could be scheduled for one or more data connetions. For a scheduled L2 recovery process to be canceled, this API should be called for all data references for which L2 recovery has been scheduled.

Returns
  • LE_OK – Succeeded.
  • LE_NOT_POSSIBLE – A L2 recovery process has not been scheduled.
  • LE_NOT_PERMITTED – A L2 recovery process has already started.
  • Appropriate error is returned on failure.
Parameters
[in]dataRefThe data reference.

Variable Documentation

◆ _ClientThreadDataPool

le_mem_PoolRef_t _ClientThreadDataPool
static

The memory pool for client thread objects

◆ _ThreadDataKey

pthread_key_t _ThreadDataKey
static

Key under which the pointer to the Thread Object (_ClientThreadData_t) will be kept in thread-local storage. This allows a thread to quickly get a pointer to its own Thread Object.

◆ CommonDataInitialized

bool CommonDataInitialized = false
static

This global flag is shared by all client threads, and is used to indicate whether the common data has been initialized.

Warning
Use InitMutex, defined below, to protect accesses to this data.

◆ le_ifgen_InitMutexRef

le_mutex_Ref_t le_ifgen_InitMutexRef

Mutex and associated macros for use with the above CommonDataInitialized.