File content as of revision 43:aff670d0d510:

/* mbed Microcontroller Library - Timeout
 * Copyright (c) 2007-2009 ARM Limited. All rights reserved.
 */ 
 
#ifndef MBED_TIMEOUT_H
#define MBED_TIMEOUT_H

#include "Ticker.h"

namespace mbed {

/** A Timeout is used to call a function at a point in the future
 *
 *  You can use as many seperate Timeout objects as you require. 
 *
 * Example:
 * @code
 * // 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;
 *         wait(0.2);
 *     }
 * }
 * @endcode
 */
class Timeout : public Ticker {

#if 0 // For documentation

    /** Attach a function to be called by the Timeout, specifiying the delay in seconds
     *     
     *  @param fptr pointer to the function to be called
     *  @param t the time before the call in seconds
     */
    void attach(void (*fptr)(void), float t) {
        attach_us(fptr, t * 1000000.0f);
    }
    
    /** Attach a member function to be called by the Timeout, specifiying the delay in seconds
     *     
     *  @param tptr pointer to the object to call the member function on
     *  @param mptr pointer to the member function to be called
     *  @param t the time before the calls in seconds
     */
    template<typename T>
    void attach(T* tptr, void (T::*mptr)(void), float t) {
        attach_us(tptr, mptr, t * 1000000.0f);
    }
    
    /** Attach a function to be called by the Timeout, specifiying the delay in micro-seconds
     *     
     *  @param fptr pointer to the function to be called
     *  @param t the time before the call in micro-seconds
     */
    void attach_us(void (*fptr)(void), unsigned int t) {
        _function.attach(fptr);
        setup(t);
    }

    /** Attach a member function to be called by the Timeout, specifiying the delay in micro-seconds
     *     
     *  @param tptr pointer to the object to call the member function on
     *  @param mptr pointer to the member function to be called
     *  @param t the time before the call in micro-seconds
     */    
    template<typename T>
    void attach_us(T* tptr, void (T::*mptr)(void), unsigned int t) {
        _function.attach(tptr, mptr);
        setup(t);
    }
    
    /** Detach the function
     */        
    void detach();

#endif
    
protected:

    virtual void handler();

};

} // namespace mbed

#endif