ts::PluginEventData Class Reference

General-purpose plugin event data referencing binary data to exchange with applications. More...

Inheritance diagram for ts::PluginEventData:

Collaboration diagram for ts::PluginEventData:

Public Member Functions
	PluginEventData (const uint8_t *data, size_t size)
	Constructor passing read-only event data. More...
	PluginEventData (uint8_t *data, size_t size, size_t max_size)
	Constructor passing read-write event data. More...
virtual	~PluginEventData () override
	Destructor.
bool	append (const void *data_addr, size_t data_size)
	Append new application data inside the plugin event data area. More...
const uint8_t *	data () const
	Get the address of the plugin read-only event data. More...
bool	hasError () const
	Check the error indicator in the event data. More...
size_t	maxSize () const
	Get the maximum size in bytes of the plugin event data. More...
uint8_t *	outputData () const
	Get the address of the plugin modifiable event data. More...
bool	readOnly () const
	Check if the plugin event data area is read-only. More...
size_t	remainingSize () const
	Get the remaining modifiable size in bytes of the plugin event data. More...
void	setError (bool error=true)
	Set the error indicator in the event data. More...
size_t	size () const
	Get the current size in bytes of the plugin event data. More...
bool	updateSize (size_t size)
	Update the current size of the plugin modifiable event data. More...

Detailed Description

General-purpose plugin event data referencing binary data to exchange with applications.

This subclass of Object can be used as "plugin data" when a plugin triggers an event and wants to pass to the application a read-only binary area.

The plugin event handlers in the application are synchronously invoked in the context of the thread plugin. The referenced binary data can be local data inside the plugin. The event handler may not saved a reference to it.

Constructor & Destructor Documentation

PluginEventData() [1/2]

ts::PluginEventData::PluginEventData	(	const uint8_t *	data,
		size_t	size
	)

Constructor passing read-only event data.

Parameters

[in]	data	Address of the plugin event data to pass to applications. It can be a null pointer.
[in]	size	Size in bytes of the plugin data.

PluginEventData() [2/2]

ts::PluginEventData::PluginEventData	(	uint8_t *	data,
		size_t	size,
		size_t	max_size
	)

Constructor passing read-write event data.

Parameters

[in]	data	Address of the plugin event data to pass to applications. It can be a null pointer.
[in]	size	Initial size in bytes of the plugin event data.
[in]	max_size	Maximum size in bytes of the plugin event data buffer. It must not be less than size. If the application modifies the data, it shall not write more than max_size bytes.

Member Function Documentation

readOnly()

bool ts::PluginEventData::readOnly ( ) const

inline

Check if the plugin event data area is read-only.

Returns

True if the plugin event data area is read-only.

data()

const uint8_t* ts::PluginEventData::data ( ) const

inline

Get the address of the plugin read-only event data.

Returns

The address of the plugin event data.

size()

size_t ts::PluginEventData::size ( ) const

inline

Get the current size in bytes of the plugin event data.

If the event data is modifiable, this may change.

Returns

The current size in bytes of the plugin data.

maxSize()

size_t ts::PluginEventData::maxSize ( ) const

inline

Get the maximum size in bytes of the plugin event data.

If the event data is modifiable, this may be more than size().

Returns

The maximum size in bytes of the plugin data.

remainingSize()

size_t ts::PluginEventData::remainingSize ( ) const

inline

Get the remaining modifiable size in bytes of the plugin event data.

If the event data is modifiable, this is zero.

Returns

The remaining modifiable size in bytes of the plugin data.

append()

bool ts::PluginEventData::append	(	const void *	data_addr,
		size_t	data_size
	)

Append new application data inside the plugin event data area.

The plugin event data area must not

Parameters

[in]	data_addr	Address of the data to append at the end of the plugin event data.
[in]	data_size	Size in bytes of the data to append.

Returns

True if the data were copied. False if the data area is read-only of the specified data are too large.

outputData()

uint8_t* ts::PluginEventData::outputData ( ) const

inline

Get the address of the plugin modifiable event data.

When the event data are not read-only, the application may update them directly, within the limits of maxSize().

Returns

The address of the plugin event data or the null pointer if the event data area is read-only.

updateSize()

bool ts::PluginEventData::updateSize

(

size_t

size

)

Update the current size of the plugin modifiable event data.

When the event data are not read-only, the application may update the event data directly, within the limits of maxSize(). This method shall be used if the current data size is changed.

Parameters

[in]

size

The new event data size in bytes. Must not be more than maxSize().

Returns

True on success, false if the event data are read-only or size is too large.

setError()

void ts::PluginEventData::setError ( bool  error = true )

inline

Set the error indicator in the event data.

Parameters

[in]

error

Error indicator (default is true).

hasError()

bool ts::PluginEventData::hasError ( ) const

inline

Check the error indicator in the event data.

Returns

True if an event handler has reported an error.

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The documentation for this class was generated from the following file:

• tsPluginEventData.h