itpp::Signal< DataType > Class Template Reference

Signals and slots. More...

#include <itpp/protocol/signals_slots.h>

Public Member Functions
	Signal (const std::string signal_name="Unamed Signal", const bool single_shot=false, const bool enable_debug=false)
	Default constructor.
	~Signal ()
	Destructor.
void	connect (Base_Slot< DataType > *slot)
	Connect a slot to the signal.
void	disconnect (Base_Slot< DataType > *slot=NULL)
	Disconnect the slot from the signal.
Base_Event *	operator() (DataType signal, const Ttype delta_time=0)
	Issue a signal.
void	cancel ()
	cancel signal
void	set_name (const std::string &signal_name)
	set name of signal
void	set_debug (const bool enable_debug=true)
	Set debug mode. If true all signals are printed to stdout.
void	trigger (DataType u)
	ADD DOCUMENTATION HERE.

Protected Types
typedef std::list< Base_Slot < DataType > *, std::allocator < Base_Slot< DataType > * > >::iterator	Base_Slot_Iterator
	ADD DOCUMENTATION HERE.

Protected Member Functions
void	_disconnect (Base_Slot< DataType > *slot)
	ADD DOCUMENTATION HERE.

Protected Attributes
std::list< Base_Slot< DataType > *, std::allocator< Base_Slot < DataType > * > >	connected_slots
	ADD DOCUMENTATION HERE.
std::string	name
	ADD DOCUMENTATION HERE.

Friends
class	Base_Slot< DataType >

Detailed Description

template<class DataType>
class itpp::Signal< DataType >

Signals and slots.

A simple example where to objects A and B are communicating through signals and slots. Each object has one signal and one slot. The A_signal is used to send a signal to the B_slot and vice versa. When a signal is received by the B_slot it is forwarded to the function forward(). The class definition includes the definition of the signals, slots and forward functions including a name and the type of data to transmit.

#include "signals_slots.h"
class A;
class B;

class A {
public:
A(){
A_slot.forward(this, &A::member);
A_signal.set_name("A_signal");
A_signal.set_debug(true);
A_slot.set_name("A_slot");
N = 10;
}
Signal<int> A_signal;
Slot<A, double> A_slot;
private:
int N;
void member(const double x) {
if(N)
A_signal.arm(3.4, N--);
}
};

class B {
public:
B(){
B_slot.forward(this, &B::member);
B_signal.set_name("B_signal");
B_signal.set_debug();
B_slot.set_name("B_slot");
}
Signal<double> B_signal;
Slot<B, int> B_slot;
private:
void member(const int k){ B_signal.arm(23.2, M_PI); }
};

int main(){
A a; // class A does not know anything about class B.
B b; // class B does not know anything about class A.

a.A_signal.connect(&b.B_slot); // Connect a to b.
b.B_signal.connect(&a.A_slot); // Connect b to a.

a.A_signal.arm(56.2, 3); // First event in 56.2 seconds carrying data = 3

Event_Queue::start(); // start the event-based simulation
}

Definition at line 124 of file signals_slots.h.

---

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

• itpp/protocol/signals_slots.h