Files
file	le_update_common.h

file	le_update_interface.h

Typedefs
typedef struct le_update_ProgressHandler *	le_update_ProgressHandlerRef_t

typedef void(*	le_update_ProgressHandlerFunc_t) (le_update_State_t updateState, uint32_t percentDone, void *contextPtr)

typedef void(*	le_update_DisconnectHandler_t) (void *)

Enumerations
enum	le_update_State_t { LE_UPDATE_STATE_UNPACKING = 0, LE_UPDATE_STATE_DOWNLOAD_SUCCESS = 1, LE_UPDATE_STATE_APPLYING = 2, LE_UPDATE_STATE_SUCCESS = 3, LE_UPDATE_STATE_FAILED = 4 }

enum	le_update_ErrorCode_t { LE_UPDATE_ERR_NONE = 0, LE_UPDATE_ERR_BAD_PACKAGE = 1, LE_UPDATE_ERR_INTERNAL_ERROR = 2, LE_UPDATE_ERR_SECURITY_FAILURE = 3 }

Functions
void	le_update_ConnectService (void)

le_result_t	le_update_TryConnectService (void)

LE_FULL_API void	le_update_SetServerDisconnectHandler (le_update_DisconnectHandler_t disconnectHandler, void *contextPtr)

void	le_update_DisconnectService (void)

le_update_ProgressHandlerRef_t	le_update_AddProgressHandler (le_update_ProgressHandlerFunc_t handlerPtr, void *contextPtr)

void	le_update_RemoveProgressHandler (le_update_ProgressHandlerRef_t handlerRef)

le_result_t	le_update_Start (int fd)

le_result_t	le_update_Install (void)

void	le_update_End (void)

le_update_ErrorCode_t	le_update_GetErrorCode (void)

int32_t	le_update_GetCurrentSysIndex (void)

le_result_t	le_update_GetSystemHash (int32_t systemIndex, char *hashStr, size_t hashStrSize)

int32_t	le_update_GetPreviousSystemIndex (int32_t systemIndex)

Detailed Description

Typedef Documentation

◆ le_update_DisconnectHandler_t

typedef void(* le_update_DisconnectHandler_t) (void *)

Type for handler called when a server disconnects.

◆ le_update_ProgressHandlerFunc_t

typedef void(* le_update_ProgressHandlerFunc_t) (le_update_State_t updateState, uint32_t percentDone, void *contextPtr)

The client callback function (handler) passed to le_update_Start() must look like this.

◆ le_update_ProgressHandlerRef_t

typedef struct le_update_ProgressHandler* le_update_ProgressHandlerRef_t

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

Enumeration Type Documentation

◆ le_update_ErrorCode_t

enum le_update_ErrorCode_t

Error code used to provide diagnostic information after a failed update.

Note: Additional information may also be available in the target device's system log.

Enumerator
LE_UPDATE_ERR_NONE	No error.
LE_UPDATE_ERR_BAD_PACKAGE	Encountered bad update package. Check logs.
LE_UPDATE_ERR_INTERNAL_ERROR	Something failed while doing update. Check logs.
LE_UPDATE_ERR_SECURITY_FAILURE	Error while doing security check of the package.

◆ le_update_State_t

enum le_update_State_t

Different states in the update state machine. The state machine is maintained to track the update task underway.

Example: for successful installation task, state transitions look like:

    --> UNPACKING --> DOWNLOAD_SUCCESS --> APPLYING --> SUCCESS.
            |                                 |
            +---------------------------------+-------> FAILED.

Enumerator
LE_UPDATE_STATE_UNPACKING	Unpacking update data.
LE_UPDATE_STATE_DOWNLOAD_SUCCESS	Update data downloaded successfully.
LE_UPDATE_STATE_APPLYING	Applying update(i.e. installation/removal operation going on).
LE_UPDATE_STATE_SUCCESS	Successfully completed all update task.
LE_UPDATE_STATE_FAILED	Update failed due to some error or deletion request.

Function Documentation

◆ le_update_AddProgressHandler()

le_update_ProgressHandlerRef_t le_update_AddProgressHandler	(	le_update_ProgressHandlerFunc_t	handlerPtr,
		void *	contextPtr
	)

Different states in the update state machine. The state machine is maintained to track the update task underway.

Example: for successful installation task, state transitions look like:

    --> UNPACKING --> DOWNLOAD_SUCCESS --> APPLYING --> SUCCESS.
            |                                 |
            +---------------------------------+-------> FAILED.

Error code used to provide diagnostic information after a failed update.

Note: Additional information may also be available in the target device's system log. The client callback function (handler) passed to le_update_Start() must look like this. Reference type used by Add/Remove functions for EVENT 'le_update_Progress' Add handler function for EVENT 'le_update_Progress'

Register for notification of the progress of a given update.

Parameters

[in]	handlerPtr	Progress handler
[in]	contextPtr

◆ le_update_ConnectService()

void le_update_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 Client Specific Functions.

This function is created automatically.

◆ le_update_DisconnectService()

void le_update_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 Client Specific Functions.

This function is created automatically.

◆ le_update_End()

void le_update_End ( void )

Ends an update session. If the update isn't finished yet, cancels it.

◆ le_update_GetCurrentSysIndex()

int32_t le_update_GetCurrentSysIndex ( void )

Get the index of the currently running system.

Returns: The index of the running system.

◆ le_update_GetErrorCode()

le_update_ErrorCode_t le_update_GetErrorCode ( void )

Function to get error code when update fails.

Returns

Error code of encountered error.
ERR_NONE if update is in any other state.

◆ le_update_GetPreviousSystemIndex()

int32_t le_update_GetPreviousSystemIndex ( int32_t systemIndex )

Get the index for the previous system in the chain, using the current system as a starting point.

Returns: The index to the system that's previous to the given system. -1 is returned if the previous system was not found.

Parameters

[in] systemIndex Get the system that's older than this system.

◆ le_update_GetSystemHash()

le_result_t le_update_GetSystemHash	(	int32_t	systemIndex,
		char *	hashStr,
		size_t	hashStrSize
	)

Gets the hash ID for a given system.

Returns

LE_OK if no problems are encountered.
LE_NOT_FOUND if the given index does not correspond to an available system.
LE_OVERFLOW if the supplied buffer is too small.
LE_FORMAT_ERROR if there are problems reading the hash for the system.

Parameters

[in]	systemIndex	The system to read the hash for.
[out]	hashStr	Buffer to hold the system hash string.
[in]	hashStrSize

◆ le_update_Install()

le_result_t le_update_Install ( void )

Install the update

Returns

LE_OK if installation started.
LE_BUSY if package download is not finished yet.
LE_FAULT if there is an error. Check logs

◆ le_update_RemoveProgressHandler()

void le_update_RemoveProgressHandler ( le_update_ProgressHandlerRef_t handlerRef )

Remove handler function for EVENT 'le_update_Progress'

Parameters

[in] handlerRef

◆ le_update_SetServerDisconnectHandler()

LE_FULL_API void le_update_SetServerDisconnectHandler	(	le_update_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.

◆ le_update_Start()

le_result_t le_update_Start ( int fd )

Starts an update.

Progress is reported via the progress handler callback.

Returns

LE_OK if accepted.
LE_BUSY if another update is in progress.
LE_UNAVAILABLE if the system is still in "probation" (not marked "good" yet).

Parameters

[in] fd Open file descriptor from which the update can be read.

◆ le_update_TryConnectService()

le_result_t le_update_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 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.

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le_update API Reference

Files

Typedefs

Enumerations

Functions

Detailed Description

Typedef Documentation

◆ le_update_DisconnectHandler_t

◆ le_update_ProgressHandlerFunc_t

◆ le_update_ProgressHandlerRef_t

Enumeration Type Documentation

◆ le_update_ErrorCode_t

◆ le_update_State_t

Function Documentation

◆ le_update_AddProgressHandler()

◆ le_update_ConnectService()

◆ le_update_DisconnectService()

◆ le_update_End()

◆ le_update_GetCurrentSysIndex()

◆ le_update_GetErrorCode()

◆ le_update_GetPreviousSystemIndex()

◆ le_update_GetSystemHash()

◆ le_update_Install()

◆ le_update_RemoveProgressHandler()

◆ le_update_SetServerDisconnectHandler()

◆ le_update_Start()

◆ le_update_TryConnectService()