SDK Development / mbed-src

mbed SDK library sources

Fork of mbed-src by mbed official

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

common/CallChain.cpp

Committer:
mbed_official
Date:
2014-02-11
Revision:
89:9655231f5786
Parent:
36:ab3ee77451e7

File content as of revision 89:9655231f5786:

#include "CallChain.h"
#include "cmsis.h"

namespace mbed {

CallChain::CallChain(int size) : _size(size), _elements(0) {
    _chain = new pFunctionPointer_t[size]();
}

CallChain::~CallChain() {
    clear();
    delete _chain;    
}

pFunctionPointer_t CallChain::add(void (*function)(void)) {
    return common_add(new FunctionPointer(function));
}

pFunctionPointer_t CallChain::add_front(void (*function)(void)) {
    return common_add_front(new FunctionPointer(function));
}

int CallChain::size() const {
    return _elements;
}

pFunctionPointer_t CallChain::get(int i) const {
    if (i < 0 || i >= _elements)
        return NULL;
    return _chain[i];
}

int CallChain::find(pFunctionPointer_t f) const {
    for (int i = 0; i < _elements; i++)
        if (f == _chain[i])
            return i;
    return -1;
}

void CallChain::clear() {
    for(int i = 0; i < _elements; i ++) {
        delete _chain[i];
        _chain[i] = NULL;
    }
    _elements = 0;
}

bool CallChain::remove(pFunctionPointer_t f) {
    int i;

    if ((i = find(f)) == -1)
        return false;
    if (i != _elements - 1)
        memmove(_chain + i, _chain + i + 1, (_elements - i - 1) * sizeof(pFunctionPointer_t));
    delete f;
    _elements --;
    return true;
}

void CallChain::call() {
    for(int i = 0; i < _elements; i++)
        _chain[i]->call();
}

void CallChain::_check_size() {
    if (_elements < _size)
        return;
    _size = (_size < 4) ? 4 : _size + 4;
    pFunctionPointer_t* new_chain = new pFunctionPointer_t[_size]();
    memcpy(new_chain, _chain, _elements * sizeof(pFunctionPointer_t));
    delete _chain;
    _chain = new_chain;
}

pFunctionPointer_t CallChain::common_add(pFunctionPointer_t pf) {
    _check_size();
    _chain[_elements] = pf;
    _elements ++;
    return pf;
}

pFunctionPointer_t CallChain::common_add_front(pFunctionPointer_t pf) {
    _check_size();
    memmove(_chain + 1, _chain, _elements * sizeof(pFunctionPointer_t));
    _chain[0] = pf;
    _elements ++;
    return pf;
}

} // namespace mbed