joey shelton / LED_Demo2

dhgdh

Dependencies:   MAX44000 PWM_Tone_Library nexpaq_mdk

Fork of LED_Demo by joey shelton

mbd_os/hal/common/CallChain.cpp@9:6bb35cef007d, 2016-10-22 (annotated)

Committer:
cyberjoey
Date:
Sat Oct 22 01:31:58 2016 +0000
Revision:
9:6bb35cef007d
Parent:
1:55a6170b404f 
WORKING

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 1:55a6170b404f 1 #include "CallChain.h"
nexpaq 1:55a6170b404f 2 #include "cmsis.h"
nexpaq 1:55a6170b404f 3 #include "critical.h"
nexpaq 1:55a6170b404f 4
nexpaq 1:55a6170b404f 5 namespace mbed {
nexpaq 1:55a6170b404f 6
nexpaq 1:55a6170b404f 7 class CallChainLink {
nexpaq 1:55a6170b404f 8 public:
nexpaq 1:55a6170b404f 9 CallChainLink(): cb(), next(NULL) {
nexpaq 1:55a6170b404f 10 // No work to do
nexpaq 1:55a6170b404f 11 }
nexpaq 1:55a6170b404f 12
nexpaq 1:55a6170b404f 13 CallChainLink(Callback<void()> &callback): cb(callback), next(NULL) {
nexpaq 1:55a6170b404f 14 // No work to do
nexpaq 1:55a6170b404f 15 }
nexpaq 1:55a6170b404f 16 Callback<void()> cb;
nexpaq 1:55a6170b404f 17 CallChainLink * next;
nexpaq 1:55a6170b404f 18 };
nexpaq 1:55a6170b404f 19
nexpaq 1:55a6170b404f 20 CallChain::CallChain(int size) : _chain(NULL) {
nexpaq 1:55a6170b404f 21 // No work to do
nexpaq 1:55a6170b404f 22 }
nexpaq 1:55a6170b404f 23
nexpaq 1:55a6170b404f 24 CallChain::~CallChain() {
nexpaq 1:55a6170b404f 25 clear();
nexpaq 1:55a6170b404f 26 }
nexpaq 1:55a6170b404f 27
nexpaq 1:55a6170b404f 28 pFunctionPointer_t CallChain::add(Callback<void()> func) {
nexpaq 1:55a6170b404f 29 CallChainLink *new_link = new CallChainLink(func);
nexpaq 1:55a6170b404f 30 if (NULL == _chain) {
nexpaq 1:55a6170b404f 31 _chain = new_link;
nexpaq 1:55a6170b404f 32 return &new_link->cb;
nexpaq 1:55a6170b404f 33 }
nexpaq 1:55a6170b404f 34
nexpaq 1:55a6170b404f 35 CallChainLink *link = _chain;
nexpaq 1:55a6170b404f 36 while (true) {
nexpaq 1:55a6170b404f 37 if (NULL == link->next) {
nexpaq 1:55a6170b404f 38 link->next = new_link;
nexpaq 1:55a6170b404f 39 return &new_link->cb;
nexpaq 1:55a6170b404f 40 }
nexpaq 1:55a6170b404f 41 link = link->next;
nexpaq 1:55a6170b404f 42 }
nexpaq 1:55a6170b404f 43 }
nexpaq 1:55a6170b404f 44
nexpaq 1:55a6170b404f 45 pFunctionPointer_t CallChain::add_front(Callback<void()> func) {
nexpaq 1:55a6170b404f 46 CallChainLink *link = new CallChainLink(func);
nexpaq 1:55a6170b404f 47 link->next = _chain;
nexpaq 1:55a6170b404f 48 _chain = link->next;
nexpaq 1:55a6170b404f 49 return &link->cb;
nexpaq 1:55a6170b404f 50 }
nexpaq 1:55a6170b404f 51
nexpaq 1:55a6170b404f 52 int CallChain::size() const {
nexpaq 1:55a6170b404f 53 CallChainLink *link = _chain;
nexpaq 1:55a6170b404f 54 int elements = 0;
nexpaq 1:55a6170b404f 55 while (link != NULL) {
nexpaq 1:55a6170b404f 56 elements++;
nexpaq 1:55a6170b404f 57 link = link->next;
nexpaq 1:55a6170b404f 58 }
nexpaq 1:55a6170b404f 59 return elements;
nexpaq 1:55a6170b404f 60 }
nexpaq 1:55a6170b404f 61
nexpaq 1:55a6170b404f 62 pFunctionPointer_t CallChain::get(int idx) const {
nexpaq 1:55a6170b404f 63 CallChainLink *link = _chain;
nexpaq 1:55a6170b404f 64 for (int i = 0; i < idx; i++) {
nexpaq 1:55a6170b404f 65 if (NULL == link) {
nexpaq 1:55a6170b404f 66 break;
nexpaq 1:55a6170b404f 67 }
nexpaq 1:55a6170b404f 68 link = link->next;
nexpaq 1:55a6170b404f 69 }
nexpaq 1:55a6170b404f 70 return &link->cb;
nexpaq 1:55a6170b404f 71 }
nexpaq 1:55a6170b404f 72
nexpaq 1:55a6170b404f 73 int CallChain::find(pFunctionPointer_t f) const {
nexpaq 1:55a6170b404f 74 CallChainLink *link = _chain;
nexpaq 1:55a6170b404f 75 int i = 0;
nexpaq 1:55a6170b404f 76 while (link != NULL) {
nexpaq 1:55a6170b404f 77 if (f == &link->cb) {
nexpaq 1:55a6170b404f 78 return i;
nexpaq 1:55a6170b404f 79 }
nexpaq 1:55a6170b404f 80 i++;
nexpaq 1:55a6170b404f 81 link = link->next;
nexpaq 1:55a6170b404f 82 }
nexpaq 1:55a6170b404f 83 return -1;
nexpaq 1:55a6170b404f 84 }
nexpaq 1:55a6170b404f 85
nexpaq 1:55a6170b404f 86 void CallChain::clear() {
nexpaq 1:55a6170b404f 87 CallChainLink *link = _chain;
nexpaq 1:55a6170b404f 88 _chain = NULL;
nexpaq 1:55a6170b404f 89 while (link != NULL) {
nexpaq 1:55a6170b404f 90 CallChainLink *temp = link->next;
nexpaq 1:55a6170b404f 91 delete link;
nexpaq 1:55a6170b404f 92 link = temp;
nexpaq 1:55a6170b404f 93 }
nexpaq 1:55a6170b404f 94 }
nexpaq 1:55a6170b404f 95
nexpaq 1:55a6170b404f 96 bool CallChain::remove(pFunctionPointer_t f) {
nexpaq 1:55a6170b404f 97 CallChainLink *link = _chain;
nexpaq 1:55a6170b404f 98 while (link != NULL) {
nexpaq 1:55a6170b404f 99 if (f == &link->cb) {
nexpaq 1:55a6170b404f 100 delete link;
nexpaq 1:55a6170b404f 101 return true;
nexpaq 1:55a6170b404f 102 }
nexpaq 1:55a6170b404f 103 link = link->next;
nexpaq 1:55a6170b404f 104 }
nexpaq 1:55a6170b404f 105 return false;
nexpaq 1:55a6170b404f 106 }
nexpaq 1:55a6170b404f 107
nexpaq 1:55a6170b404f 108 void CallChain::call() {
nexpaq 1:55a6170b404f 109 CallChainLink *link = _chain;
nexpaq 1:55a6170b404f 110 while (link != NULL) {
nexpaq 1:55a6170b404f 111 link->cb.call();
nexpaq 1:55a6170b404f 112 link = link->next;
nexpaq 1:55a6170b404f 113 }
nexpaq 1:55a6170b404f 114 }
nexpaq 1:55a6170b404f 115
nexpaq 1:55a6170b404f 116 } // namespace mbed