comms::MsgDispatcher< TOptions > Class Template Reference

#include "MsgDispatcher.h"

Detailed Description

template<typename... TOptions>
class comms::MsgDispatcher< TOptions >

An auxiliary class to force a particular way of dispatching message to its handler.

If not options are provided, the dispatching is performed by invocation of comms::dispatchMsg() function.

Template Parameters

TOptions

Options to force a particular dispatch way. Supported ones are: comms::option::ForceDispatchPolymorphic - Force dispatch using comms::dispatchMsgPolymorphic() comms::option::ForceDispatchStaticBinSearch - Force dispatch using comms::dispatchMsgStaticBinSearch() comms::option::ForceDispatchLinearSwitch - Force dispatch using comms::dispatchMsgLinearSwitch()

Public Types
using	MsgDispatcherTag = typename ParsedOptions::ForcedDispatch
	Class detection tag.
using	ParsedOptions = ParsedOptionsInternal
	Parsed Options.

Static Public Member Functions
template<typename TAllMessages , typename TMsg , typename THandler >
static auto	dispatch (TMsg &&msg, THandler &&handler) -> decltype(dispatchInternal< TAllMessages >(msg, handler, Tag()))
	Dispatch message to its handler.
template<typename TAllMessages , typename TMsgId , typename TMsg , typename THandler >
static auto	dispatch (TMsgId &&id, std::size_t idx, TMsg &msg, THandler &handler) -> decltype(dispatchInternal< TAllMessages >(std::forward< TMsgId >(id), idx, msg, handler, Tag()))
	Dispatch message to its handler.
template<typename TAllMessages , typename TMsgId , typename TMsg , typename THandler >
static auto	dispatch (TMsgId &&id, TMsg &&msg, THandler &&handler) -> decltype(dispatchInternal< TAllMessages >(std::forward< TMsgId >(id), msg, handler, Tag()))
	Dispatch message to its handler.
template<typename TAllMessages >
static constexpr bool	isDispatchLinearSwitch ()
	Compile time inquiry whether linear switch dispatch is generated internally to map message ID to actual type.
template<typename TAllMessages >
static constexpr bool	isDispatchPolymorphic ()
	Compile time inquiry whether polymorphic dispatch tables are generated internally to map message ID to actual type.
template<typename TAllMessages >
static constexpr bool	isDispatchStaticBinSearch ()
	Compile time inquiry whether static binary search dispatch is generated internally to map message ID to actual type.

Related Symbols
(Note that these are not member symbols.)
template<typename T >
constexpr bool	isMsgDispatcher ()
	Compile time check whether the provided class is a variant of comms::MsgDispatcher.

Member Function Documentation

dispatch() [1/3]

template<typename... TOptions>

template<typename TAllMessages , typename TMsg , typename THandler >

static auto comms::MsgDispatcher< TOptions >::dispatch ( TMsg &&  msg, THandler &&  handler  ) -> decltype(dispatchInternal<TAllMessages>(msg, handler, Tag()))

static

Dispatch message to its handler.

Similar to other dispatch(), but suitable for cases when message interface class provides a way to polymorphically dispatch message object to its handler (see Polymorphic Dispatch Message for Handling) and/or ability to polymorphically retrieve message ID information (see Polymorphic Retrieval of Message ID) as well as requiring messages tuple does NOT contain message classes with the same ID value.

Template Parameters

TAllMessages

Bundle (std::tuple) of all supported message classes

Parameters

[in]	msg	Reference to message object.
[in]	handler	Reference to handler objectz

Returns

What the handle() member function(s) of the hander return.

dispatch() [2/3]

template<typename... TOptions>

template<typename TAllMessages , typename TMsgId , typename TMsg , typename THandler >

static auto comms::MsgDispatcher< TOptions >::dispatch ( TMsgId &&  id, std::size_t  idx, TMsg &  msg, THandler &  handler  ) -> decltype(dispatchInternal<TAllMessages>(std::forward<TMsgId>(id), idx, msg, handler, Tag()))

static

Dispatch message to its handler.

Uses comms::dispatchMsg(), comms::dispatchMsgPolymorphic(), comms::dispatchMsgStaticBinSearch(), or comms::dispatchMsgLinearSwitch() based on class definition option(s).

Template Parameters

TAllMessages

Bundle (std::tuple) of all supported message classes

Parameters

[in]	id	ID of the message.
[in]	idx	Index (or offset) of the message among those having the same numeric ID in the TAllMessages.
[in]	msg	Reference to message object.
[in]	handler	Reference to handler object

Returns

What the handle() member function(s) of the hander return.

dispatch() [3/3]

template<typename... TOptions>

template<typename TAllMessages , typename TMsgId , typename TMsg , typename THandler >

static auto comms::MsgDispatcher< TOptions >::dispatch ( TMsgId &&  id, TMsg &&  msg, THandler &&  handler  ) -> decltype(dispatchInternal<TAllMessages>(std::forward<TMsgId>(id), msg, handler, Tag()))

static

Dispatch message to its handler.

Similar to other dispatch(), but suitable for cases when messages tuple does NOT contain message classes with the same ID value.

Template Parameters

TAllMessages

Bundle (std::tuple) of all supported message classes

Parameters

[in]	id	ID of the message.
[in]	msg	Reference to message object.
[in]	handler	Reference to handler object

Returns

What the handle() member function(s) of the hander return.

isDispatchLinearSwitch()

template<typename... TOptions>

template<typename TAllMessages >

static constexpr bool comms::MsgDispatcher< TOptions >::isDispatchLinearSwitch ( )

staticconstexpr

Compile time inquiry whether linear switch dispatch is generated internally to map message ID to actual type.

See also

Advanced Guide to Message Dispatching

isDispatchStaticBinSearch()

isDispatchLinearSwitch()

isDispatchPolymorphic()

template<typename... TOptions>

template<typename TAllMessages >

static constexpr bool comms::MsgDispatcher< TOptions >::isDispatchPolymorphic ( )

staticconstexpr

Compile time inquiry whether polymorphic dispatch tables are generated internally to map message ID to actual type.

See also

Advanced Guide to Message Dispatching

isDispatchStaticBinSearch()

isDispatchLinearSwitch()

isDispatchStaticBinSearch()

template<typename... TOptions>

template<typename TAllMessages >

static constexpr bool comms::MsgDispatcher< TOptions >::isDispatchStaticBinSearch ( )

staticconstexpr

Compile time inquiry whether static binary search dispatch is generated internally to map message ID to actual type.

See also

Advanced Guide to Message Dispatching

isDispatchPolymorphic()

isDispatchLinearSwitch()

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

• include/comms/MsgDispatcher.h