75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
#include "AlertNotificationService.h"
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#include <hal/nrf_rtc.h>
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#include <cstring>
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#include <algorithm>
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#include "NotificationManager.h"
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#include "systemtask/SystemTask.h"
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using namespace Pinetime::Controllers;
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constexpr ble_uuid16_t AlertNotificationService::ansUuid;
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constexpr ble_uuid16_t AlertNotificationService::ansCharUuid;
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int AlertNotificationCallback(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg) {
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auto anService = static_cast<AlertNotificationService*>(arg);
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return anService->OnAlert(conn_handle, attr_handle, ctxt);
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}
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void AlertNotificationService::Init() {
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int res;
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res = ble_gatts_count_cfg(serviceDefinition);
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ASSERT(res == 0);
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res = ble_gatts_add_svcs(serviceDefinition);
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ASSERT(res == 0);
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}
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AlertNotificationService::AlertNotificationService ( System::SystemTask& systemTask, NotificationManager& notificationManager )
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: characteristicDefinition{
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{
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.uuid = (ble_uuid_t *) &ansCharUuid,
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.access_cb = AlertNotificationCallback,
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.arg = this,
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.flags = BLE_GATT_CHR_F_WRITE
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},
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{
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0
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}
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},
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serviceDefinition{
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{
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/* Device Information Service */
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.type = BLE_GATT_SVC_TYPE_PRIMARY,
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.uuid = (ble_uuid_t *) &ansUuid,
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.characteristics = characteristicDefinition
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},
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{
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0
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},
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}, systemTask{systemTask}, notificationManager{notificationManager} {
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}
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int AlertNotificationService::OnAlert(uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt) {
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if (ctxt->op == BLE_GATT_ACCESS_OP_WRITE_CHR) {
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constexpr size_t stringTerminatorSize = 1; // end of string '\0'
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constexpr size_t headerSize = 3;
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const auto maxMessageSize {NotificationManager::MaximumMessageSize()};
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const auto maxBufferSize{maxMessageSize + headerSize};
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const auto dbgPacketLen = OS_MBUF_PKTLEN(ctxt->om);
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size_t bufferSize = std::min(dbgPacketLen + stringTerminatorSize, maxBufferSize);
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auto messageSize = std::min(maxMessageSize, (bufferSize-headerSize));
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NotificationManager::Notification notif;
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os_mbuf_copydata(ctxt->om, headerSize, messageSize-1, notif.message.data());
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notif.message[messageSize-1] = '\0';
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notif.category = Pinetime::Controllers::NotificationManager::Categories::SimpleAlert;
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notificationManager.Push(std::move(notif));
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systemTask.PushMessage(Pinetime::System::SystemTask::Messages::OnNewNotification);
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}
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return 0;
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}
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