This dbt_scanner10 C++ scanner ::BTRole::Master GATT client example uses an event driven workflow and multithreading, i.e. More...

#include <cstring>
#include <string>
#include <memory>
#include <cstdint>
#include <fstream>
#include <iostream>
#include <cinttypes>
#include <pthread.h>
#include <csignal>
#include <jau/cpp_lang_util.hpp>
#include <jau/dfa_utf8_decode.hpp>
#include <jau/basic_algos.hpp>
#include <jau/darray.hpp>
#include <direct_bt/DirectBT.hpp>
#include <unistd.h>
#include "dbt_constants.hpp"
#include <cstdio>

Include dependency graph for dbt_scanner10.cpp:

Classes
class	MyAdapterStatusListener

class	MyGATTEventListener

Functions
static void	connectDiscoveredDevice (BTDeviceRef device)

static bool	initAdapter (std::shared_ptr< BTAdapter > &adapter)

int	main (int argc, char *argv[])

static void	myChangedAdapterSetFunc (const bool added, std::shared_ptr< BTAdapter > &adapter)

static void	processReadyDevice (const BTDeviceRef &device)

static void	removeDevice (BTDeviceRef device)

static void	resetAdapter (BTAdapter *a, int mode)

static bool	startDiscovery (BTAdapter *a, const std::string &msg)

void	test ()

Variables
static const uuid16_t	_TEMPERATURE_MEASUREMENT (GattCharacteristicType::TEMPERATURE_MEASUREMENT)

static BTMode	btMode = BTMode::DUAL

static std::shared_ptr< BTAdapter >	chosenAdapter = nullptr

static uint8_t	cmd_arg = 0x44

static std::unique_ptr< uuid_t >	cmd_rsp_uuid = jau::uuid_t::create(std::string("d0ca6bf3-3d53-4760-98e5-fc5883e93712"))

static std::unique_ptr< uuid_t >	cmd_uuid = jau::uuid_t::create(std::string("d0ca6bf3-3d52-4760-98e5-fc5883e93712"))

static std::atomic< int >	deviceReadyCount = 0

static DiscoveryPolicy	discoveryPolicy = DiscoveryPolicy::PAUSE_CONNECTED_UNTIL_READY

static const bool	filter_dup = true

static const uint8_t	filter_policy = 0

static bool	GATT_PING_ENABLED = false

static bool	KEEP_CONNECTED = true

static bool	le_scan_active = true

static const uint16_t	le_scan_interval = 24

static const uint16_t	le_scan_window = 24

static std::atomic< int >	MULTI_MEASUREMENTS = 8

static bool	QUIET = false

static bool	REMOVE_DEVICE = true

static int	RESET_ADAPTER_EACH_CONN = 0

static bool	SHOW_UPDATE_EVENTS = false

static uint64_t	timestamp_t0

static bool	use_privacy = false

static EUI48	useAdapter = EUI48::ALL_DEVICE

Detailed Description

This dbt_scanner10 C++ scanner ::BTRole::Master GATT client example uses an event driven workflow and multithreading, i.e.

one thread processes each found device when notified.

dbt_scanner10 represents the recommended utilization of Direct-BT.

dbt_scanner10 Invocation Examples:

Using scripts/run-dbt_scanner10.sh from dist directory:

Scan and read all devices (using default auto-sec w/ keyboard iocap)
../scripts/run-dbt_scanner10.sh
Read device C0:26:DA:01:DA:B1 (using default auto-sec w/ keyboard iocap)
../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1
Read device C0:26:DA:01:DA:B1 (using default auto-sec w/ keyboard iocap) from adapter 01:02:03:04:05:06
../scripts/run-dbt_scanner10.sh -adapter adapter 01:02:03:04:05:06 -dev C0:26:DA:01:DA:B1
Read device C0:26:DA:01:DA:B1 (enforcing no security)
../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1 -seclevel C0:26:DA:01:DA:B1 1
Read any device containing C0:26:DA (enforcing no security)
../scripts/run-dbt_scanner10.sh -dev C0:26:DA -seclevel C0:26:DA 1
Read any device containing name TAIDOC (enforcing no security)
../scripts/run-dbt_scanner10.sh -dev 'TAIDOC' -seclevel 'TAIDOC' 1
Read device C0:26:DA:01:DA:B1, basic debug flags enabled (using default auto-sec w/ keyboard iocap)
../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1 -dbt_debug true
Read device C0:26:DA:01:DA:B1, all debug flags enabled (using default auto-sec w/ keyboard iocap)
../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1 -dbt_debug adapter.event,gatt.data,hci.event,hci.scan_ad_eir,mgmt.event

Special Actions

To do a BT adapter removal/add via software, assuming the device is '1-4' (Bus 1.Port 4):
echo '1-4' > /sys/bus/usb/drivers/usb/unbind

echo '1-4' > /sys/bus/usb/drivers/usb/bind

Definition in file dbt_scanner10.cpp.