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/*
* Copyright 2017 The Android Open Source Project
*
* 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.
*/
#include <list>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include "bta_gatt_api.h"
class BtaGattServerQueue {
public:
static void Clean(uint16_t conn_id);
static void SendNotification(uint16_t conn_id, uint16_t handle,
std::vector<uint8_t> value, bool need_confirm);
static void NotificationCallback(uint16_t conn_id);
static void CongestionCallback(uint16_t conn_id, bool congested);
/* Holds pending GATT operations */
struct gatts_operation {
uint8_t type;
uint16_t attr_id;
std::vector<uint8_t> value;
bool need_confirm;
};
private:
static bool is_congested;
static void mark_as_not_executing(uint16_t conn_id);
static void gatts_execute_next_op(uint16_t conn_id);
// maps connection id to operations waiting for execution
static std::unordered_map<uint16_t, std::list<gatts_operation>>
gatts_op_queue;
// maps connection id to congestion status of each device
static std::unordered_map<uint16_t, bool> congestion_queue;
// contain connection ids that currently execute operations
static std::unordered_set<uint16_t> gatts_op_queue_executing;
};
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