Files
file	le_appCtrl_common.h

file	le_appCtrl_interface.h

Typedefs
typedef struct le_appCtrl_App *	le_appCtrl_AppRef_t

typedef struct le_appCtrl_TraceAttachHandler *	le_appCtrl_TraceAttachHandlerRef_t

typedef void(*	le_appCtrl_TraceAttachHandlerFunc_t) (le_appCtrl_AppRef_t appRef, int32_t pid, const char LE_NONNULL procName, void contextPtr)

typedef void(*	le_appCtrl_DisconnectHandler_t) (void *)

Functions
void	le_appCtrl_ConnectService (void)

le_result_t	le_appCtrl_TryConnectService (void)

LE_FULL_API void	le_appCtrl_SetServerDisconnectHandler (le_appCtrl_DisconnectHandler_t disconnectHandler, void *contextPtr)

void	le_appCtrl_DisconnectService (void)

le_appCtrl_AppRef_t	le_appCtrl_GetRef (const char *LE_NONNULL appName)

void	le_appCtrl_ReleaseRef (le_appCtrl_AppRef_t appRef)

void	le_appCtrl_SetRun (le_appCtrl_AppRef_t appRef, const char *LE_NONNULL procName, bool run)

void	le_appCtrl_SetDebug (le_appCtrl_AppRef_t appRef, const char *LE_NONNULL procName, bool debug)

le_result_t	le_appCtrl_Import (le_appCtrl_AppRef_t appRef, const char *LE_NONNULL path)

le_result_t	le_appCtrl_SetDevicePerm (le_appCtrl_AppRef_t appRef, const char LE_NONNULL path, const char LE_NONNULL permissions)

le_appCtrl_TraceAttachHandlerRef_t	le_appCtrl_AddTraceAttachHandler (le_appCtrl_AppRef_t appRef, le_appCtrl_TraceAttachHandlerFunc_t attachToPidPtr, void *contextPtr)

void	le_appCtrl_RemoveTraceAttachHandler (le_appCtrl_TraceAttachHandlerRef_t handlerRef)

void	le_appCtrl_TraceUnblock (le_appCtrl_AppRef_t appRef, int32_t pid)

le_result_t	le_appCtrl_Start (const char *LE_NONNULL appName)

le_result_t	le_appCtrl_Stop (const char *LE_NONNULL appName)

Detailed Description

Typedef Documentation

◆ le_appCtrl_DisconnectHandler_t

typedef void(* le_appCtrl_DisconnectHandler_t) (void *)

Type for handler called when a server disconnects.

◆ le_appCtrl_TraceAttachHandlerFunc_t

typedef void(* le_appCtrl_TraceAttachHandlerFunc_t) (le_appCtrl_AppRef_t appRef, int32_t pid, const char *LE_NONNULL procName, void *contextPtr)

Handler for attaching to a process that is to be traced. The process is blocked allowing the tracer to attach to it. The tracer must call TraceUnblock() to unblock the traced process.

◆ le_appCtrl_TraceAttachHandlerRef_t

typedef struct le_appCtrl_TraceAttachHandler* le_appCtrl_TraceAttachHandlerRef_t

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

Function Documentation

◆ le_appCtrl_AddTraceAttachHandler()

le_appCtrl_TraceAttachHandlerRef_t le_appCtrl_AddTraceAttachHandler	(	le_appCtrl_AppRef_t	appRef,
		le_appCtrl_TraceAttachHandlerFunc_t	attachToPidPtr,
		void *	contextPtr
	)

Add handler function for EVENT 'le_appCtrl_TraceAttach'

Event that indicates the process is blocked and can be attached to.

Parameters

[in]	appRef	Ref to the app.
[in]	attachToPidPtr	Attach handler to register.
[in]	contextPtr

◆ le_appCtrl_ConnectService()

void le_appCtrl_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_appCtrl_DisconnectService()

void le_appCtrl_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_appCtrl_GetRef()

le_appCtrl_AppRef_t le_appCtrl_GetRef ( const char *LE_NONNULL appName )

Handler for attaching to a process that is to be traced. The process is blocked allowing the tracer to attach to it. The tracer must call TraceUnblock() to unblock the traced process. Reference type used by Add/Remove functions for EVENT 'le_appCtrl_TraceAttach' Gets a reference to an app.

Returns: Reference to the named app. NULL on error (check logs for errors).

Parameters

[in] appName Name of the app to get the ref for.

◆ le_appCtrl_Import()

le_result_t le_appCtrl_Import	(	le_appCtrl_AppRef_t	appRef,
		const char *LE_NONNULL	path
	)

Imports a file into the app's working directory.

Returns: LE_OK if successfully imported the file. LE_DUPLICATE if the path conflicts with items already in the app's working directory. LE_NOT_FOUND if the path does not point to a valid file. LE_BAD_PARAMETER if the path is formatted incorrectly. LE_FAULT if there was some other error.

Note: If the caller is passing an invalid reference to the app, it is a fatal error, the function will not return.

Parameters

[in]	appRef	Ref to the app.
[in]	path	Absolute path to the file to import.

◆ le_appCtrl_ReleaseRef()

void le_appCtrl_ReleaseRef ( le_appCtrl_AppRef_t appRef )

Release the reference to an app, resetting all overrides set for this app using other functions, like SetRun(), SetDevicePerm(), etc.

Parameters

[in] appRef Ref to the app.

◆ le_appCtrl_RemoveTraceAttachHandler()

void le_appCtrl_RemoveTraceAttachHandler ( le_appCtrl_TraceAttachHandlerRef_t handlerRef )

Remove handler function for EVENT 'le_appCtrl_TraceAttach'

Parameters

[in] handlerRef

◆ le_appCtrl_SetDebug()

void le_appCtrl_SetDebug	(	le_appCtrl_AppRef_t	appRef,
		const char *LE_NONNULL	procName,
		bool	debug
	)

Sets the debug flag for a process in an app.

If there is an error this function will kill the calling client.

Parameters

[in]	appRef	Ref to the app.
[in]	procName	Process name to set the run flag for.
[in]	debug	Flag to debug the process or not.

◆ le_appCtrl_SetDevicePerm()

le_result_t le_appCtrl_SetDevicePerm	(	le_appCtrl_AppRef_t	appRef,
		const char *LE_NONNULL	path,
		const char *LE_NONNULL	permissions
	)

Sets a device file's permissions.

Returns: LE_OK if successfully set the device's permissions. LE_NOT_FOUND if the path does not point to a valid device. LE_BAD_PARAMETER if the path is formatted incorrectly. LE_FAULT if there was some other error.

Note: If the caller is passing an invalid reference to the app, it is a fatal error, the function will not return.

Parameters

[in]	appRef	Ref to the app.
[in]	path	Absolute path to the device.
[in]	permissions	Permission string, "r", "w", "rw".

◆ le_appCtrl_SetRun()

void le_appCtrl_SetRun	(	le_appCtrl_AppRef_t	appRef,
		const char *LE_NONNULL	procName,
		bool	run
	)

Sets the run flag for a process in an app.

If there is an error this function will kill the calling client.

Parameters

[in]	appRef	Ref to the app.
[in]	procName	Process name to set the run flag for.
[in]	run	Flag to run the process or not.

◆ le_appCtrl_SetServerDisconnectHandler()

LE_FULL_API void le_appCtrl_SetServerDisconnectHandler	(	le_appCtrl_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_appCtrl_Start()

le_result_t le_appCtrl_Start ( const char *LE_NONNULL appName )

Starts an app.

Returns: LE_OK if the app is successfully started. LE_DUPLICATE if the app is already running. LE_NOT_FOUND if the app isn't installed. LE_FAULT if there was an error and the app could not be launched.

Parameters

[in] appName Name of the app to start.

◆ le_appCtrl_Stop()

le_result_t le_appCtrl_Stop ( const char *LE_NONNULL appName )

Stops an app.

Returns: LE_OK if successful. LE_NOT_FOUND if the app could not be found.

Parameters

[in] appName Name of the app to stop.

◆ le_appCtrl_TraceUnblock()

void le_appCtrl_TraceUnblock	(	le_appCtrl_AppRef_t	appRef,
		int32_t	pid
	)

Unblocks the traced process. This should normally be done once the tracer has successfully attached to the process.

Note: If the caller is passing an invalid reference to the app, it is a fatal error, the function will not return.

Parameters

[in]	appRef	Ref to the app.
[in]	pid	PID of the process to unblock.

◆ le_appCtrl_TryConnectService()

le_result_t le_appCtrl_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.

/ Build Apps

le_appCtrl API Reference

Files

Typedefs

Functions

Detailed Description

Typedef Documentation

◆ le_appCtrl_DisconnectHandler_t

◆ le_appCtrl_TraceAttachHandlerFunc_t

◆ le_appCtrl_TraceAttachHandlerRef_t

Function Documentation

◆ le_appCtrl_AddTraceAttachHandler()

◆ le_appCtrl_ConnectService()

◆ le_appCtrl_DisconnectService()

◆ le_appCtrl_GetRef()

◆ le_appCtrl_Import()

◆ le_appCtrl_ReleaseRef()

◆ le_appCtrl_RemoveTraceAttachHandler()

◆ le_appCtrl_SetDebug()

◆ le_appCtrl_SetDevicePerm()

◆ le_appCtrl_SetRun()

◆ le_appCtrl_SetServerDisconnectHandler()

◆ le_appCtrl_Start()

◆ le_appCtrl_Stop()

◆ le_appCtrl_TraceUnblock()

◆ le_appCtrl_TryConnectService()