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Provide more extensive listener features.

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This enables listeners to be notified of not only value updates, but also flag
changes and deletions by using a bitmask to specify what notifications are
desired.  The old API (which only provided a new/not new) flag is still
supported.  This also subsumes the feature to listen to local changes (that's
one of the bitmask options).
This commit is contained in:
Peter Johnson
2015-09-25 11:54:17 -07:00
parent 51064f5e75
commit 90959defd9
17 changed files with 246 additions and 128 deletions
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7
src/ntcore_cpp.cpp
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@@ -66,11 +66,12 @@ void Flush() {
*/
unsigned int AddEntryListener(StringRef prefix, EntryListenerCallback callback,
bool immediate_notify, bool local_notify) {
unsigned int flags) {
Notifier& notifier = Notifier::GetInstance();
unsigned int uid = notifier.AddEntryListener(prefix, callback, local_notify);
unsigned int uid = notifier.AddEntryListener(prefix, callback, flags);
notifier.Start();
if (immediate_notify) Storage::GetInstance().NotifyEntries(prefix, callback);
if ((flags & NT_NOTIFY_IMMEDIATE) != 0)
Storage::GetInstance().NotifyEntries(prefix, callback);
return uid;
}