Steven Wray / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed-dev by mbed official

common/CallChain.cpp@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 #include "CallChain.h"
bogdanm 0:9b334a45a8ff 2 #include "cmsis.h"
bogdanm 0:9b334a45a8ff 3
bogdanm 0:9b334a45a8ff 4 namespace mbed {
bogdanm 0:9b334a45a8ff 5
bogdanm 0:9b334a45a8ff 6 CallChain::CallChain(int size) : _chain(), _size(size), _elements(0) {
bogdanm 0:9b334a45a8ff 7 _chain = new pFunctionPointer_t[size]();
bogdanm 0:9b334a45a8ff 8 }
bogdanm 0:9b334a45a8ff 9
bogdanm 0:9b334a45a8ff 10 CallChain::~CallChain() {
bogdanm 0:9b334a45a8ff 11 clear();
bogdanm 0:9b334a45a8ff 12 delete _chain;
bogdanm 0:9b334a45a8ff 13 }
bogdanm 0:9b334a45a8ff 14
bogdanm 0:9b334a45a8ff 15 pFunctionPointer_t CallChain::add(void (*function)(void)) {
bogdanm 0:9b334a45a8ff 16 return common_add(new FunctionPointer(function));
bogdanm 0:9b334a45a8ff 17 }
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 pFunctionPointer_t CallChain::add_front(void (*function)(void)) {
bogdanm 0:9b334a45a8ff 20 return common_add_front(new FunctionPointer(function));
bogdanm 0:9b334a45a8ff 21 }
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 int CallChain::size() const {
bogdanm 0:9b334a45a8ff 24 return _elements;
bogdanm 0:9b334a45a8ff 25 }
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 pFunctionPointer_t CallChain::get(int i) const {
bogdanm 0:9b334a45a8ff 28 if (i < 0 || i >= _elements)
bogdanm 0:9b334a45a8ff 29 return NULL;
bogdanm 0:9b334a45a8ff 30 return _chain[i];
bogdanm 0:9b334a45a8ff 31 }
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 int CallChain::find(pFunctionPointer_t f) const {
bogdanm 0:9b334a45a8ff 34 for (int i = 0; i < _elements; i++)
bogdanm 0:9b334a45a8ff 35 if (f == _chain[i])
bogdanm 0:9b334a45a8ff 36 return i;
bogdanm 0:9b334a45a8ff 37 return -1;
bogdanm 0:9b334a45a8ff 38 }
bogdanm 0:9b334a45a8ff 39
bogdanm 0:9b334a45a8ff 40 void CallChain::clear() {
bogdanm 0:9b334a45a8ff 41 for(int i = 0; i < _elements; i ++) {
bogdanm 0:9b334a45a8ff 42 delete _chain[i];
bogdanm 0:9b334a45a8ff 43 _chain[i] = NULL;
bogdanm 0:9b334a45a8ff 44 }
bogdanm 0:9b334a45a8ff 45 _elements = 0;
bogdanm 0:9b334a45a8ff 46 }
bogdanm 0:9b334a45a8ff 47
bogdanm 0:9b334a45a8ff 48 bool CallChain::remove(pFunctionPointer_t f) {
bogdanm 0:9b334a45a8ff 49 int i;
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 if ((i = find(f)) == -1)
bogdanm 0:9b334a45a8ff 52 return false;
bogdanm 0:9b334a45a8ff 53 if (i != _elements - 1)
bogdanm 0:9b334a45a8ff 54 memmove(_chain + i, _chain + i + 1, (_elements - i - 1) * sizeof(pFunctionPointer_t));
bogdanm 0:9b334a45a8ff 55 delete f;
bogdanm 0:9b334a45a8ff 56 _elements --;
bogdanm 0:9b334a45a8ff 57 return true;
bogdanm 0:9b334a45a8ff 58 }
bogdanm 0:9b334a45a8ff 59
bogdanm 0:9b334a45a8ff 60 void CallChain::call() {
bogdanm 0:9b334a45a8ff 61 for(int i = 0; i < _elements; i++)
bogdanm 0:9b334a45a8ff 62 _chain[i]->call();
bogdanm 0:9b334a45a8ff 63 }
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 void CallChain::_check_size() {
bogdanm 0:9b334a45a8ff 66 if (_elements < _size)
bogdanm 0:9b334a45a8ff 67 return;
bogdanm 0:9b334a45a8ff 68 _size = (_size < 4) ? 4 : _size + 4;
bogdanm 0:9b334a45a8ff 69 pFunctionPointer_t* new_chain = new pFunctionPointer_t[_size]();
bogdanm 0:9b334a45a8ff 70 memcpy(new_chain, _chain, _elements * sizeof(pFunctionPointer_t));
bogdanm 0:9b334a45a8ff 71 delete _chain;
bogdanm 0:9b334a45a8ff 72 _chain = new_chain;
bogdanm 0:9b334a45a8ff 73 }
bogdanm 0:9b334a45a8ff 74
bogdanm 0:9b334a45a8ff 75 pFunctionPointer_t CallChain::common_add(pFunctionPointer_t pf) {
bogdanm 0:9b334a45a8ff 76 _check_size();
bogdanm 0:9b334a45a8ff 77 _chain[_elements] = pf;
bogdanm 0:9b334a45a8ff 78 _elements ++;
bogdanm 0:9b334a45a8ff 79 return pf;
bogdanm 0:9b334a45a8ff 80 }
bogdanm 0:9b334a45a8ff 81
bogdanm 0:9b334a45a8ff 82 pFunctionPointer_t CallChain::common_add_front(pFunctionPointer_t pf) {
bogdanm 0:9b334a45a8ff 83 _check_size();
bogdanm 0:9b334a45a8ff 84 memmove(_chain + 1, _chain, _elements * sizeof(pFunctionPointer_t));
bogdanm 0:9b334a45a8ff 85 _chain[0] = pf;
bogdanm 0:9b334a45a8ff 86 _elements ++;
bogdanm 0:9b334a45a8ff 87 return pf;
bogdanm 0:9b334a45a8ff 88 }
bogdanm 0:9b334a45a8ff 89
bogdanm 0:9b334a45a8ff 90 } // namespace mbed