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tests: Added new test that try to connect/disconnect a same device
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# | ||
# GattLib - GATT Library | ||
# | ||
# Copyright (C) 2016-2024 Olivier Martin <[email protected]> | ||
# | ||
# | ||
# This program is free software; you can redistribute it and/or modify | ||
# it under the terms of the GNU General Public License as published by | ||
# the Free Software Foundation; either version 2 of the License, or | ||
# (at your option) any later version. | ||
# | ||
# This program is distributed in the hope that it will be useful, | ||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
# GNU General Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License | ||
# along with this program; if not, write to the Free Software | ||
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
# | ||
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cmake_minimum_required(VERSION 3.25.1) | ||
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find_package(PkgConfig REQUIRED) | ||
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pkg_search_module(GATTLIB REQUIRED gattlib) | ||
pkg_search_module(PCRE REQUIRED libpcre) | ||
pkg_search_module(GLIB REQUIRED glib-2.0) | ||
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add_executable(test_continuous_connection test_continuous_connection.c) | ||
target_include_directories(test_continuous_connection PRIVATE ${GLIB_INCLUDE_DIRS}) | ||
target_link_libraries(test_continuous_connection ${GATTLIB_LIBRARIES} ${GATTLIB_LDFLAGS} ${PCRE_LIBRARIES} ${GLIB_LDFLAGS} pthread) |
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tests/test_continuous_connection/test_continuous_connection.c
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/* | ||
* | ||
* GattLib - GATT Library | ||
* | ||
* Copyright (C) 2021-2024 Olivier Martin <[email protected]> | ||
* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License as published by | ||
* the Free Software Foundation; either version 2 of the License, or | ||
* (at your option) any later version. | ||
* | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU General Public License | ||
* along with this program; if not, write to the Free Software | ||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
* | ||
*/ | ||
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#include <assert.h> | ||
#include <ctype.h> | ||
#include <pthread.h> | ||
#include <stdio.h> | ||
#include <stdint.h> | ||
#include <stdlib.h> | ||
#include <sys/queue.h> | ||
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#include <glib.h> | ||
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG | ||
#include <syslog.h> | ||
#endif | ||
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#include "gattlib.h" | ||
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#define BLE_CONNECT_LOOP_COUNT 20 | ||
#define BLE_SCAN_TIMEOUT 180 | ||
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static const char* adapter_name; | ||
static const char* reference_mac_address; | ||
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// Declaration of thread condition variable | ||
static struct { | ||
pthread_cond_t condition; | ||
pthread_mutex_t lock; | ||
bool value; | ||
} m_connection_terminated; | ||
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static void on_device_connect(void *adapter, const char *dst, gatt_connection_t* connection, int error, void* user_data) { | ||
int ret; | ||
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if (error != 0) { | ||
GATTLIB_LOG(GATTLIB_ERROR, "Failed to connect to device '%s': Error %d", reference_mac_address, error); | ||
goto EXIT; | ||
} | ||
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ret = gattlib_disconnect(connection, true /* wait_disconnection */); | ||
assert(ret == 0); | ||
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GATTLIB_LOG(GATTLIB_DEBUG, "Bluetooth device '%s' should be disconnected.", reference_mac_address); | ||
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EXIT: | ||
pthread_mutex_lock(&m_connection_terminated.lock); | ||
m_connection_terminated.value = true; | ||
pthread_cond_signal(&m_connection_terminated.condition); | ||
pthread_mutex_unlock(&m_connection_terminated.lock); | ||
} | ||
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static int stricmp(char const *a, char const *b) { | ||
for (;; a++, b++) { | ||
int d = tolower((unsigned char)*a) - tolower((unsigned char)*b); | ||
if (d != 0 || !*a) | ||
return d; | ||
} | ||
} | ||
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static void ble_discovered_device(void *adapter, const char* addr, const char* name, void *user_data) { | ||
int ret; | ||
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if (stricmp(addr, reference_mac_address) != 0) { | ||
return; | ||
} | ||
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GATTLIB_LOG(GATTLIB_INFO, "Found bluetooth device '%s'", reference_mac_address); | ||
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for (uintptr_t i = 0; i < BLE_CONNECT_LOOP_COUNT; i++) { | ||
GATTLIB_LOG(GATTLIB_INFO, "Connecting to the bluetooth device '%s' %d/%d", addr, i+1, BLE_CONNECT_LOOP_COUNT); | ||
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memset(&m_connection_terminated, 0, sizeof(m_connection_terminated)); | ||
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// Try to connect while the connection is busy. | ||
while (true) { | ||
ret = gattlib_connect(adapter, addr, GATTLIB_CONNECTION_OPTIONS_NONE, on_device_connect, adapter); | ||
if (ret != GATTLIB_BUSY) { | ||
break; | ||
} | ||
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GATTLIB_LOG(GATTLIB_DEBUG, "Failed to connect to the bluetooth device '%s' because busy. Try again", addr); | ||
g_usleep(100); | ||
} | ||
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if (ret != GATTLIB_SUCCESS) { | ||
GATTLIB_LOG(GATTLIB_ERROR, "Failed to connect to the bluetooth device '%s': %d", addr, ret); | ||
continue; | ||
} | ||
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// Wait for the device to be connected | ||
pthread_mutex_lock(&m_connection_terminated.lock); | ||
while (!m_connection_terminated.value) { | ||
pthread_cond_wait(&m_connection_terminated.condition, &m_connection_terminated.lock); | ||
} | ||
pthread_mutex_unlock(&m_connection_terminated.lock); | ||
} | ||
} | ||
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static void* ble_task(void* arg) { | ||
void* adapter; | ||
int ret; | ||
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ret = gattlib_adapter_open(adapter_name, &adapter); | ||
if (ret) { | ||
GATTLIB_LOG(GATTLIB_ERROR, "Failed to open adapter."); | ||
return NULL; | ||
} | ||
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ret = gattlib_adapter_scan_enable(adapter, ble_discovered_device, BLE_SCAN_TIMEOUT, NULL /* user_data */); | ||
if (ret) { | ||
GATTLIB_LOG(GATTLIB_ERROR, "Failed to scan."); | ||
goto EXIT; | ||
} | ||
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gattlib_adapter_scan_disable(adapter); | ||
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GATTLIB_LOG(GATTLIB_INFO, "Scan completed"); | ||
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EXIT: | ||
gattlib_adapter_close(adapter); | ||
return NULL; | ||
} | ||
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int main(int argc, const char *argv[]) { | ||
int ret; | ||
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if (argc == 1) { | ||
adapter_name = NULL; | ||
} else if (argc == 2) { | ||
reference_mac_address = argv[1]; | ||
} else if (argc == 3) { | ||
adapter_name = argv[1]; | ||
reference_mac_address = argv[2]; | ||
} else { | ||
printf("%s [<bluetooth-adapter>] mac_address\n", argv[0]); | ||
return 1; | ||
} | ||
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG | ||
openlog("gattlib_ble_scan", LOG_CONS | LOG_NDELAY | LOG_PERROR, LOG_USER); | ||
setlogmask(LOG_UPTO(LOG_INFO)); | ||
#endif | ||
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ret = gattlib_mainloop(ble_task, NULL); | ||
if (ret != GATTLIB_SUCCESS) { | ||
GATTLIB_LOG(GATTLIB_ERROR, "Failed to create gattlib mainloop"); | ||
} | ||
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return ret; | ||
} |