CallChain class
[Platform]

Group one or more functions in an instance of a CallChain, then call them in sequence using CallChain::call().

Used mostly by the interrupt chaining code, but can be used for other purposes.

Note:

Synchronization level: Not protected

Example:

 #include "mbed.h"

 CallChain chain;

 void first(void) {
     printf("'first' function.\n");
 }

 void second(void) {
     printf("'second' function.\n");
 }

 class Test {
 public:
     void f(void) {
         printf("A::f (class member).\n");
     }
 };

 int main() {
     Test test;

     chain.add(second);
     chain.add_front(first);
     chain.add(&test, &Test::f);
     chain.call();
 }

Create an empty chain

Parameters:

size	(optional) Initial size of the chain

Create an empty chain

Add a function at the end of the chain

Parameters:

func	A pointer to a void function

Returns:

The function object created for 'func'

Add a function at the end of the chain

Parameters:

obj	pointer to the object to call the member function on
method	pointer to the member function to be called

Returns:

The function object created for 'obj' and 'method'

Add a function at the beginning of the chain

Parameters:

func	A pointer to a void function

Returns:

The function object created for 'func'

Add a function at the beginning of the chain

Parameters:

obj	pointer to the object to call the member function on
method	pointer to the member function to be called

Returns:

The function object created for the object and method pointers

Get the number of functions in the chain

Get a function object from the chain

Parameters:

i	function object index

Returns:

The function object at position 'i' in the chain

Look for a function object in the call chain

Parameters:

f	the function object to search

Returns:

The index of the function object if found, -1 otherwise.

Clear the call chain (remove all functions in the chain).

Remove a function object from the chain

• f the function object to remove

Returns:

true if the function object was found and removed, false otherwise.

Call all the functions in the chain in sequence

Definition at line 76 of file CallChain.h.