winamp/Src/Wasabi/api/syscb/cbmgr.cpp

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2024-09-24 08:54:57 -04:00
#include <precomp.h>
#ifndef NOCBMGR
#include "cbmgr.h"
#include <api/syscb/callbacks/syscb.h>
#include <bfc/multimap.h>
static MultiMap<int, SysCallback> cblist;
static PtrList<SysCallback> delete_list;
static int reentry_counter=0;
void CallbackManager::registerCallback(SysCallback *cb, void *param, WaComponent *owner) {
cblist.multiAddItem(cb->getEventType(), cb, TRUE);
}
void CallbackManager::deregisterCallback(SysCallback *cb, WaComponent *owner) {
delete_list.addItem(cb);
cblist.multiDelItem(cb->getEventType(), cb); // remove ref
}
void CallbackManager::issueCallback(int eventtype, int msg, int param1, int param2) {
ASSERT(reentry_counter >= 0);
reentry_counter++;
const PtrList<SysCallback> *mlist = cblist.getListForIndex(eventtype);
if (mlist != NULL) {
foreach(mlist)
SysCallback *cb = mlist->getfor();
ASSERT(cb != NULL);
if (!delete_list.haveItem(cb))
cb->notify(msg, param1, param2);
endfor
}
reentry_counter--;
if (reentry_counter == 0)
delete_list.removeAll();
}
int CallbackManager::getNumCallbacks() {
return cblist.getNumItems();
}
#endif