Diff: ble/CharacteristicDescriptorDiscovery.h

Revision:

1077:98d37e26903c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ble/CharacteristicDescriptorDiscovery.h	Mon Jan 11 08:51:43 2016 +0000
@@ -0,0 +1,99 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2015 ARM Limited
+ *
+ * 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.
+ */
+
+#ifndef __CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__
+#define __CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__
+
+#include "FunctionPointerWithContext.h"
+
+class DiscoveredCharacteristic;                         // forward declaration
+class DiscoveredCharacteristicDescriptor;               // forward declaration
+
+/**
+ * @brief Contain all definitions of callbacks and callbacks parameters types
+ * related to characteristic descriptor discovery.
+ *
+ * @details This class act like a namespace for characteristic descriptor discovery
+ * types. It act like ServiceDiscovery by providing callbacks and callbacks
+ * parameters types related to the characteristic descriptor discovery process but
+ * contrary to ServiceDiscovery class, it does not force the porter to use a
+ * specific interface for the characteristic descriptor discovery process.
+ */
+class CharacteristicDescriptorDiscovery {
+public:
+    /**
+     * @brief Parameter type of CharacteristicDescriptorDiscovery::DiscoveryCallback_t.
+     * @detail Every time a characteristic descriptor has been discovered, the callback
+     * registered for the discovery operation through GattClient::discoverCharacteristicDescriptors
+     * or DiscoveredCharacteristic::discoverDescriptors will be called with this parameter.
+     *
+     */
+    struct DiscoveryCallbackParams_t {
+        /**
+         * The characteristic owning the DiscoveredCharacteristicDescriptor
+         */
+        const DiscoveredCharacteristic& characteristic;
+
+        /**
+         * The characteristic descriptor discovered
+         */
+        const DiscoveredCharacteristicDescriptor& descriptor;
+    };
+
+    /**
+     * @brief Parameter type of CharacteristicDescriptorDiscovery::TerminationCallback_t.
+     * @details Once a characteristic descriptor discovery process terminate, the termination
+     * callback registered for the discovery operation through
+     * GattClient::discoverCharacteristicDescriptors or DiscoveredCharacteristic::discoverDescriptors
+     * will be called with this parameter.
+     */
+    struct TerminationCallbackParams_t {
+        /**
+         * The characteristic for which the descriptors has been discovered
+         */
+        const DiscoveredCharacteristic& characteristic;
+
+        /**
+         * status of the discovery operation
+         */
+        ble_error_t status;
+    };
+
+    /**
+     * @brief Callback type for when a matching characteristic descriptor is found during
+     * characteristic descriptor discovery.
+     *
+     * @param param A pointer to a DiscoveryCallbackParams_t object which will remain
+     * valid for the lifetime of the callback. Memory for this object is owned by
+     * the BLE_API eventing framework. The application can safely make a persistent
+     * shallow-copy of this object in order to work with the service beyond the
+     * callback.
+     */
+    typedef FunctionPointerWithContext<const DiscoveryCallbackParams_t*> DiscoveryCallback_t;
+
+    /**
+     * @brief Callback type for when characteristic descriptor discovery terminates.
+     *
+     * @param param A pointer to a TerminationCallbackParams_t object which will remain
+     * valid for the lifetime of the callback. Memory for this object is owned by
+     * the BLE_API eventing framework. The application can safely make a persistent
+     * shallow-copy of this object in order to work with the service beyond the
+     * callback.
+     */
+    typedef FunctionPointerWithContext<const TerminationCallbackParams_t*> TerminationCallback_t;
+};
+
+#endif // ifndef __CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__
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