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-rw-r--r--examples/redis-unstable/src/eventnotifier.h34
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diff --git a/examples/redis-unstable/src/eventnotifier.h b/examples/redis-unstable/src/eventnotifier.h
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+++ b/examples/redis-unstable/src/eventnotifier.h
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+/* eventnotifier.h -- An event notifier based on eventfd or pipe.
+ *
+ * Copyright (c) 2024-Present, Redis Ltd.
+ * All rights reserved.
+ *
+ * Licensed under your choice of (a) the Redis Source Available License 2.0
+ * (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the
+ * GNU Affero General Public License v3 (AGPLv3).
+ */
+
+#ifndef EVENTNOTIFIER_H
+#define EVENTNOTIFIER_H
+
+#include "config.h"
+
+#define EN_OK 0
+#define EN_ERR -1
+
+typedef struct eventNotifier {
+#ifdef HAVE_EVENT_FD
+ int efd;
+#else
+ int pipefd[2];
+#endif
+} eventNotifier;
+
+eventNotifier* createEventNotifier(void);
+int getReadEventFd(struct eventNotifier *en);
+int getWriteEventFd(struct eventNotifier *en);
+int triggerEventNotifier(struct eventNotifier *en);
+int handleEventNotifier(struct eventNotifier *en);
+void freeEventNotifier(struct eventNotifier *en);
+
+#endif