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BLE: Add API to test the presence of an event handler in a chain. #14256

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Merged
merged 1 commit into from
Feb 11, 2021
Merged

BLE: Add API to test the presence of an event handler in a chain. #14256

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22 changes: 19 additions & 3 deletions connectivity/FEATURE_BLE/include/ble/common/ChainableEventHandler.h
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Original file line number Diff line number Diff line change
Expand Up @@ -71,14 +71,14 @@ class ChainableEventHandler
*
* @param[in] event_handler Pointer to event handler to remove
*/
void removeEventHandler(T* target) {
void removeEventHandler(T* event_handler) {
node_t* to_remove = head;
if(head->eh == target) {
if(head->eh == event_handler) {
head = head->next;
} else {
auto* it = head;
while(it->next) {
if(it->next->eh == target) {
if(it->next->eh == event_handler) {
to_remove = it->next;
break;
}
Expand All @@ -94,6 +94,22 @@ class ChainableEventHandler
delete to_remove;
}

/**
* Test if an event handler is present in the chain or not.
*
* @param[in] event_handler Pointer to event handler to check
*/
bool isEventHandlerPresent(T* event_handler) {
auto* it = head;
while (it) {
if (it == event_handler) {
return true;
}
it = it->next;
}
return false;
}

protected:

template<typename... FnArgs, typename... Args>
Expand Down