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platform/CallChain.cpp@181:96ed750bd169, 2018-01-17 (annotated)

Committer:
Anna Bridge
Date:
Wed Jan 17 15:23:54 2018 +0000
Revision:
181:96ed750bd169
Parent:
160:d5399cc887bb 
mbed-dev libray. Release version 158

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Anna Bridge 181:96ed750bd169 1
Anna Bridge 181:96ed750bd169 2 // Suppress deprecation warnings since this whole
Anna Bridge 181:96ed750bd169 3 // class is deprecated already
Anna Bridge 181:96ed750bd169 4 #include "mbed_toolchain.h"
Anna Bridge 181:96ed750bd169 5 #undef MBED_DEPRECATED_SINCE
Anna Bridge 181:96ed750bd169 6 #define MBED_DEPRECATED_SINCE(...)
Anna Bridge 181:96ed750bd169 7
<> 149:156823d33999 8 #include "platform/CallChain.h"
<> 149:156823d33999 9 #include "cmsis.h"
<> 160:d5399cc887bb 10 #include "platform/mbed_critical.h"
<> 149:156823d33999 11
<> 149:156823d33999 12 namespace mbed {
<> 149:156823d33999 13
<> 149:156823d33999 14 class CallChainLink {
<> 149:156823d33999 15 public:
<> 149:156823d33999 16 CallChainLink(): cb(), next(NULL) {
<> 149:156823d33999 17 // No work to do
<> 149:156823d33999 18 }
<> 149:156823d33999 19
<> 149:156823d33999 20 CallChainLink(Callback<void()> &callback): cb(callback), next(NULL) {
<> 149:156823d33999 21 // No work to do
<> 149:156823d33999 22 }
<> 149:156823d33999 23 Callback<void()> cb;
<> 149:156823d33999 24 CallChainLink * next;
<> 149:156823d33999 25 };
<> 149:156823d33999 26
<> 149:156823d33999 27 CallChain::CallChain(int size) : _chain(NULL) {
<> 149:156823d33999 28 // No work to do
<> 149:156823d33999 29 }
<> 149:156823d33999 30
<> 149:156823d33999 31 CallChain::~CallChain() {
<> 149:156823d33999 32 clear();
<> 149:156823d33999 33 }
<> 149:156823d33999 34
<> 149:156823d33999 35 pFunctionPointer_t CallChain::add(Callback<void()> func) {
<> 149:156823d33999 36 CallChainLink *new_link = new CallChainLink(func);
<> 149:156823d33999 37 if (NULL == _chain) {
<> 149:156823d33999 38 _chain = new_link;
<> 149:156823d33999 39 return &new_link->cb;
<> 149:156823d33999 40 }
<> 149:156823d33999 41
<> 149:156823d33999 42 CallChainLink *link = _chain;
<> 149:156823d33999 43 while (true) {
<> 149:156823d33999 44 if (NULL == link->next) {
<> 149:156823d33999 45 link->next = new_link;
<> 149:156823d33999 46 return &new_link->cb;
<> 149:156823d33999 47 }
<> 149:156823d33999 48 link = link->next;
<> 149:156823d33999 49 }
<> 149:156823d33999 50 }
<> 149:156823d33999 51
<> 149:156823d33999 52 pFunctionPointer_t CallChain::add_front(Callback<void()> func) {
<> 149:156823d33999 53 CallChainLink *link = new CallChainLink(func);
<> 149:156823d33999 54 link->next = _chain;
<> 149:156823d33999 55 _chain = link;
<> 149:156823d33999 56 return &link->cb;
<> 149:156823d33999 57 }
<> 149:156823d33999 58
<> 149:156823d33999 59 int CallChain::size() const {
<> 149:156823d33999 60 CallChainLink *link = _chain;
<> 149:156823d33999 61 int elements = 0;
<> 149:156823d33999 62 while (link != NULL) {
<> 149:156823d33999 63 elements++;
<> 149:156823d33999 64 link = link->next;
<> 149:156823d33999 65 }
<> 149:156823d33999 66 return elements;
<> 149:156823d33999 67 }
<> 149:156823d33999 68
<> 149:156823d33999 69 pFunctionPointer_t CallChain::get(int idx) const {
<> 149:156823d33999 70 CallChainLink *link = _chain;
<> 149:156823d33999 71 for (int i = 0; i < idx; i++) {
<> 149:156823d33999 72 if (NULL == link) {
<> 149:156823d33999 73 break;
<> 149:156823d33999 74 }
<> 149:156823d33999 75 link = link->next;
<> 149:156823d33999 76 }
<> 149:156823d33999 77 return &link->cb;
<> 149:156823d33999 78 }
<> 149:156823d33999 79
<> 149:156823d33999 80 int CallChain::find(pFunctionPointer_t f) const {
<> 149:156823d33999 81 CallChainLink *link = _chain;
<> 149:156823d33999 82 int i = 0;
<> 149:156823d33999 83 while (link != NULL) {
<> 149:156823d33999 84 if (f == &link->cb) {
<> 149:156823d33999 85 return i;
<> 149:156823d33999 86 }
<> 149:156823d33999 87 i++;
<> 149:156823d33999 88 link = link->next;
<> 149:156823d33999 89 }
<> 149:156823d33999 90 return -1;
<> 149:156823d33999 91 }
<> 149:156823d33999 92
<> 149:156823d33999 93 void CallChain::clear() {
<> 149:156823d33999 94 CallChainLink *link = _chain;
<> 149:156823d33999 95 _chain = NULL;
<> 149:156823d33999 96 while (link != NULL) {
<> 149:156823d33999 97 CallChainLink *temp = link->next;
<> 149:156823d33999 98 delete link;
<> 149:156823d33999 99 link = temp;
<> 149:156823d33999 100 }
<> 149:156823d33999 101 }
<> 149:156823d33999 102
<> 149:156823d33999 103 bool CallChain::remove(pFunctionPointer_t f) {
<> 149:156823d33999 104 CallChainLink *link = _chain;
<> 149:156823d33999 105 while (link != NULL) {
<> 149:156823d33999 106 if (f == &link->cb) {
<> 149:156823d33999 107 delete link;
<> 149:156823d33999 108 return true;
<> 149:156823d33999 109 }
<> 149:156823d33999 110 link = link->next;
<> 149:156823d33999 111 }
<> 149:156823d33999 112 return false;
<> 149:156823d33999 113 }
<> 149:156823d33999 114
<> 149:156823d33999 115 void CallChain::call() {
<> 149:156823d33999 116 CallChainLink *link = _chain;
<> 149:156823d33999 117 while (link != NULL) {
<> 149:156823d33999 118 link->cb.call();
<> 149:156823d33999 119 link = link->next;
<> 149:156823d33999 120 }
<> 149:156823d33999 121 }
<> 149:156823d33999 122
<> 149:156823d33999 123 } // namespace mbed