A Timeout is used to call a function at a point in the future. More...

#include <Timeout.h>

Inheritance diagram for TimeoutBase:

Public Member Functions
std::chrono::microseconds	remaining_time () const
	Return time remaining until callback. More...

template<typename F >
MBED_FORCEINLINE void	attach (F &&func, float t)
	Attach a function to be called by the Ticker, specifying the interval in seconds. More...

void	attach (Callback< void()> func, std::chrono::microseconds t)
	Attach a function to be called by the Ticker, specifying the interval in microseconds. More...

void	attach_us (Callback< void()> func, us_timestamp_t t)
	Attach a function to be called by the Ticker, specifying the interval in microseconds. More...

void	detach ()
	Detach the function. More...

Detailed Description

A Timeout is used to call a function at a point in the future.

You can use as many separate Timeout objects as you require.

Note: Synchronization level: Interrupt safe

Example:

// Blink until timeout.
#include "mbed.h"
Timeout timeout;
DigitalOut led(LED1);
int on = 1;
void attimeout() {
    on = 0;
}
int main() {
    timeout.attach(&attimeout, 5);
    while(on) {
        led = !led;
        ThisThread::sleep_for(200);
    }
}

Definition at line 60 of file Timeout.h.

Member Function Documentation

MBED_FORCEINLINE void attach	(	F &&	func,
		float	t
	)

inherited

Attach a function to be called by the Ticker, specifying the interval in seconds.

The method forwards its arguments to attach_us() rather than copying them which may not be trivial depending on the callback copied. The function is forcibly inlined to not use floating-point operations. This is possible given attach_us() expects an integer value for the callback interval.

Parameters

func	pointer to the function to be called
t	the time between calls in seconds

Deprecated:: Pass a chrono duration, not a float second count. For example use 10ms rather than 0.01f.

Definition at line 92 of file Ticker.h.

void attach	(	Callback< void()>	func,
		std::chrono::microseconds	t
	)

inherited

Attach a function to be called by the Ticker, specifying the interval in microseconds.

Parameters

func	pointer to the function to be called
t	the time between calls in micro-seconds

Note: setting t to a value shorter than it takes to process the ticker callback causes the system to hang. Ticker callback is called constantly with no time for threads scheduling.

void attach_us	(	Callback< void()>	func,
		us_timestamp_t	t
	)

inherited

Attach a function to be called by the Ticker, specifying the interval in microseconds.

Parameters

func	pointer to the function to be called
t	the time between calls in micro-seconds

Note: setting t to a value shorter than it takes to process the ticker callback causes the system to hang. Ticker callback is called constantly with no time for threads scheduling.

Deprecated:: Pass a chrono duration, not an integer microsecond count. For example use 10ms rather than 10000.

void detach ( )

inherited

Detach the function.

std::chrono::microseconds remaining_time ( ) const

Return time remaining until callback.

Returns: time remaining until callback is due

Note: if the callback is overdue, or has already run, the returned value will be negative

Definition at line 68 of file Timeout.h.

Public Member Functions

Detailed Description

Member Function Documentation

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