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diff --git a/libparc/parc/algol/parc_EventSignal.h b/libparc/parc/algol/parc_EventSignal.h
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+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @file parc_EventSignal.h
+ * @ingroup events
+ * @brief Signal events
+ *
+ * Provides a facade implementing many regularly available event functions.
+ * This is an interface that software implementors may use to substitute
+ * different kinds of underlying implementations of these event management functions.
+ * Notable examples are libevent and libev.
+ *
+ */
+#ifndef libparc_parc_EventSignal
+#define libparc_parc_EventSignal
+
+#include <parc/algol/parc_Event.h>
+
+typedef void (PARCEventSignal_Callback)(int fd, PARCEventType type, void *user_data);
+
+typedef struct PARCEventSignal PARCEventSignal;
+
+/**
+ * Create a new signal event instance.
+ *
+ * The new event instance is returned.
+ *
+ * @param [in] parcEventScheduler - scheduler instance
+ * @param [in] signal - signal to catch
+ * @param [in] flags - event flags
+ * @param [in] callback - event callback
+ * @param [in] callbackArguments - private arguments passed to callback
+ * @returns A pointer to the a PARCEventSignal instance.
+ *
+ * Example:
+ * @code
+ * {
+ *     PARCEventSignal *parcEventSignal = parcEventSignal_Create(parcEventScheduler, SIGUSR1, 0, callback, callbackArguments);
+ * }
+ * @endcode
+ *
+ */
+PARCEventSignal *parcEventSignal_Create(PARCEventScheduler *parcEventScheduler,
+                                        int signal, PARCEventType flags,
+                                        PARCEventSignal_Callback *callback,
+                                        void *callbackArguments);
+
+/**
+ * Prepare a parcEventSignal instance to be scheduled.
+ *
+ * @returns -1 on error, 0 on success if nothing changed in the event backend, and 1 on success if something did.
+ * @param [in] parcEventSignal the newly created event instance.
+ *
+ * Example:
+ * @code
+ * addEvent(PARCEventSignal *parcEventSignal)
+ * {
+ *     int result = parcEventSignal_Start(parcEventSignal);
+ * }
+ * @endcode
+ *
+ */
+int parcEventSignal_Start(PARCEventSignal *parcEventSignal);
+
+/**
+ * Stop a parcEventSignal instance.
+ *
+ * @param [in] parcEventSignal - The newly created event instance.
+ *
+ * Example:
+ * @code
+ * removeEvent(PARCEventSignal *parcEventSignal)
+ * {
+ *     parcEventSignal_Stop(parcEventSignal);
+ * }
+ * @endcode
+ *
+ */
+int parcEventSignal_Stop(PARCEventSignal *parcEventSignal);
+
+/**
+ * Destroy a parcEventSignal instance.
+ *
+ * The event instance is passed in.
+ *
+ * @param [in] parcEventSignal The instance to destroy.
+ *
+ * Example:
+ * @code
+ * {
+ *     parcEventSignal_Destroy(&eparcEventSignal vent);
+ * }
+ * @endcode
+ *
+ */
+void parcEventSignal_Destroy(PARCEventSignal **parcEventSignal);
+
+/**
+ * Turn on debugging flags and messages
+ *
+ * Example:
+ * @code
+ * {
+ *     parcEventSignal_EnableDebug();
+ * }
+ * @endcode
+ *
+ */
+void parcEventSignal_EnableDebug(void);
+
+/**
+ * Turn off debugging flags and messages
+ *
+ * Example:
+ * @code
+ * {
+ *     parcEventSignal_DisableDebug();
+ * }
+ * @endcode
+ *
+ */
+void parcEventSignal_DisableDebug(void);
+#endif // libparc_parc_EventSignal_h