mirror of https://github.com/labapart/gattlib
examples: Port more examples to new API
Olivier Martin
parent
f3f6bb37bb
commit
5ca46ad208
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@ -114,9 +114,9 @@ if(GATTLIB_BUILD_EXAMPLES)
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add_subdirectory(examples/discover)
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add_subdirectory(examples/find_eddystone)
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add_subdirectory(examples/read_write)
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add_subdirectory(examples/read_write_memory)
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add_subdirectory(examples/notification)
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add_subdirectory(examples/nordic_uart)
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#add_subdirectory(examples/read_write_memory)
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#add_subdirectory(examples/notification)
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#add_subdirectory(examples/nordic_uart)
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# Some examples require Bluez code and other DBus support
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if (NOT GATTLIB_DBUS)
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@ -2,7 +2,7 @@
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*
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* GattLib - GATT Library
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*
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* Copyright (C) 2016-2021 Olivier Martin <olivier@labapart.org>
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* Copyright (C) 2016-2024 Olivier Martin <olivier@labapart.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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@ -21,6 +21,8 @@
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*
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*/
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#include <ctype.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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@ -30,35 +32,29 @@
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#include "gattlib.h"
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int main(int argc, char *argv[])
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{
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gatt_connection_t* connection;
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#define BLE_SCAN_TIMEOUT 10
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static const char* adapter_name = NULL;
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// Declaration of thread condition variable
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static pthread_cond_t m_connection_terminated = PTHREAD_COND_INITIALIZER;
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// declaring mutex
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static pthread_mutex_t m_connection_terminated_lock = PTHREAD_MUTEX_INITIALIZER;
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static void on_device_connect(void *adapter, const char *dst, gatt_connection_t* connection, int error, void* user_data) {
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gattlib_primary_service_t* services;
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gattlib_characteristic_t* characteristics;
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int services_count, characteristics_count;
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char uuid_str[MAX_LEN_UUID_STR + 1];
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int ret, i;
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG
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openlog("gattlib_discover", LOG_CONS | LOG_NDELAY | LOG_PERROR, LOG_USER);
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setlogmask(LOG_UPTO(LOG_INFO));
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#endif
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if (argc != 2) {
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printf("%s <device_address>\n", argv[0]);
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return 1;
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}
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connection = gattlib_connect(NULL, argv[1], GATTLIB_CONNECTION_OPTIONS_LEGACY_DEFAULT);
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if (connection == NULL) {
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GATTLIB_LOG(GATTLIB_ERROR, "Fail to connect to the bluetooth device.");
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return 1;
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}
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GATTLIB_LOG(GATTLIB_INFO, "Connected to bluetooth device '%s'", dst);
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ret = gattlib_discover_primary(connection, &services, &services_count);
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if (ret != GATTLIB_SUCCESS) {
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GATTLIB_LOG(GATTLIB_ERROR, "Fail to discover primary services.");
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return 1;
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goto EXIT;
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}
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for (i = 0; i < services_count; i++) {
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@ -73,7 +69,7 @@ int main(int argc, char *argv[])
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ret = gattlib_discover_char(connection, &characteristics, &characteristics_count);
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if (ret != GATTLIB_SUCCESS) {
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GATTLIB_LOG(GATTLIB_ERROR, "Fail to discover characteristics.");
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return 1;
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goto EXIT;
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}
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for (i = 0; i < characteristics_count; i++) {
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gattlib_uuid_to_string(&characteristics[i].uuid, uuid_str, sizeof(uuid_str));
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@ -84,6 +80,84 @@ int main(int argc, char *argv[])
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}
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free(characteristics);
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EXIT:
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gattlib_disconnect(connection);
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pthread_mutex_lock(&m_connection_terminated_lock);
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pthread_cond_signal(&m_connection_terminated);
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pthread_mutex_unlock(&m_connection_terminated_lock);
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}
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static int stricmp(char const *a, char const *b) {
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for (;; a++, b++) {
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int d = tolower((unsigned char)*a) - tolower((unsigned char)*b);
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if (d != 0 || !*a)
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return d;
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}
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}
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static void ble_discovered_device(void *adapter, const char* addr, const char* name, void *user_data) {
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const char* reference_mac_address = user_data;
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int ret;
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if (stricmp(addr, reference_mac_address) != 0) {
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return;
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}
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GATTLIB_LOG(GATTLIB_INFO, "Found bluetooth device '%s'", reference_mac_address);
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ret = gattlib_connect(adapter, addr, GATTLIB_CONNECTION_OPTIONS_NONE, on_device_connect, NULL);
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if (ret != GATTLIB_SUCCESS) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to connect to the bluetooth device '%s'", addr);
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}
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}
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static void* ble_task(void* arg) {
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char* addr = arg;
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void* adapter;
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int ret;
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ret = gattlib_adapter_open(adapter_name, &adapter);
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if (ret) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to open adapter.");
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return NULL;
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}
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ret = gattlib_adapter_scan_enable(adapter, ble_discovered_device, BLE_SCAN_TIMEOUT, addr);
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if (ret) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to scan.");
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return NULL;
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}
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// Wait for the device to be connected
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pthread_mutex_lock(&m_connection_terminated_lock);
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pthread_cond_wait(&m_connection_terminated, &m_connection_terminated_lock);
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pthread_mutex_unlock(&m_connection_terminated_lock);
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return NULL;
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}
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int main(int argc, char *argv[])
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{
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char* device_address;
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int ret;
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG
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openlog("gattlib_discover", LOG_CONS | LOG_NDELAY | LOG_PERROR, LOG_USER);
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setlogmask(LOG_UPTO(LOG_INFO));
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#endif
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if (argc != 2) {
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printf("%s <device_address>\n", argv[0]);
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return 1;
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}
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device_address = argv[1];
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ret = gattlib_mainloop(ble_task, device_address);
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if (ret != GATTLIB_SUCCESS) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to create gattlib mainloop");
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}
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return 0;
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}
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@ -2,7 +2,7 @@
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*
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* GattLib - GATT Library
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*
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* Copyright (C) 2016-2021 Olivier Martin <olivier@labapart.org>
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* Copyright (C) 2016-2024 Olivier Martin <olivier@labapart.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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@ -22,6 +22,8 @@
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*/
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#include <assert.h>
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#include <ctype.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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@ -31,66 +33,38 @@
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#include "gattlib.h"
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typedef enum { READ, WRITE} operation_t;
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operation_t g_operation;
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#define BLE_SCAN_TIMEOUT 10
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static uuid_t g_uuid;
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long int value_data;
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static struct {
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char *adapter_name;
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char* mac_address;
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enum { READ, WRITE } operation;
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uuid_t uuid;
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long int value_data;
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} m_argument;
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// Declaration of thread condition variable
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static pthread_cond_t m_connection_terminated = PTHREAD_COND_INITIALIZER;
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// declaring mutex
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static pthread_mutex_t m_connection_terminated_lock = PTHREAD_MUTEX_INITIALIZER;
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static void usage(char *argv[]) {
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printf("%s <device_address> <read|write> <uuid> [<hex-value-to-write>]\n", argv[0]);
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}
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int main(int argc, char *argv[]) {
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int i, ret;
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static void on_device_connect(void *adapter, const char *dst, gatt_connection_t* connection, int error, void* user_data) {
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int ret;
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size_t len;
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gatt_connection_t* connection;
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if ((argc != 4) && (argc != 5)) {
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usage(argv);
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return 1;
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}
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG
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openlog("gattlib_read_write", LOG_CONS | LOG_NDELAY | LOG_PERROR, LOG_USER);
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setlogmask(LOG_UPTO(LOG_INFO));
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#endif
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if (strcmp(argv[2], "read") == 0) {
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g_operation = READ;
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} else if ((strcmp(argv[2], "write") == 0) && (argc == 5)) {
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g_operation = WRITE;
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if ((strlen(argv[4]) >= 2) && (argv[4][0] == '0') && ((argv[4][1] == 'x') || (argv[4][1] == 'X'))) {
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value_data = strtol(argv[4], NULL, 16);
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} else {
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value_data = strtol(argv[4], NULL, 0);
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}
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printf("Value to write: 0x%lx\n", value_data);
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} else {
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usage(argv);
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return 1;
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}
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if (gattlib_string_to_uuid(argv[3], strlen(argv[3]) + 1, &g_uuid) < 0) {
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usage(argv);
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return 1;
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}
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connection = gattlib_connect(NULL, argv[1], GATTLIB_CONNECTION_OPTIONS_LEGACY_DEFAULT);
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if (connection == NULL) {
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GATTLIB_LOG(GATTLIB_ERROR, "Fail to connect to the bluetooth device.");
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return 1;
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}
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if (g_operation == READ) {
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if (m_argument.operation == READ) {
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uint8_t *buffer = NULL;
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ret = gattlib_read_char_by_uuid(connection, &g_uuid, (void **)&buffer, &len);
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ret = gattlib_read_char_by_uuid(connection, &m_argument.uuid, (void **)&buffer, &len);
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if (ret != GATTLIB_SUCCESS) {
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char uuid_str[MAX_LEN_UUID_STR + 1];
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gattlib_uuid_to_string(&g_uuid, uuid_str, sizeof(uuid_str));
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gattlib_uuid_to_string(&m_argument.uuid, uuid_str, sizeof(uuid_str));
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if (ret == GATTLIB_NOT_FOUND) {
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GATTLIB_LOG(GATTLIB_ERROR, "Could not find GATT Characteristic with UUID %s. "
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@ -102,18 +76,18 @@ int main(int argc, char *argv[]) {
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}
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printf("Read UUID completed: ");
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for (i = 0; i < len; i++) {
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for (uintptr_t i = 0; i < len; i++) {
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printf("%02x ", buffer[i]);
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}
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printf("\n");
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gattlib_characteristic_free_value(buffer);
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} else {
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ret = gattlib_write_char_by_uuid(connection, &g_uuid, &value_data, sizeof(value_data));
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ret = gattlib_write_char_by_uuid(connection, &m_argument.uuid, &m_argument.value_data, sizeof(m_argument.value_data));
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if (ret != GATTLIB_SUCCESS) {
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char uuid_str[MAX_LEN_UUID_STR + 1];
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gattlib_uuid_to_string(&g_uuid, uuid_str, sizeof(uuid_str));
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gattlib_uuid_to_string(&m_argument.uuid, uuid_str, sizeof(uuid_str));
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if (ret == GATTLIB_NOT_FOUND) {
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GATTLIB_LOG(GATTLIB_ERROR, "Could not find GATT Characteristic with UUID %s. "
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@ -128,5 +102,101 @@ int main(int argc, char *argv[]) {
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EXIT:
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gattlib_disconnect(connection);
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return ret;
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pthread_mutex_lock(&m_connection_terminated_lock);
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pthread_cond_signal(&m_connection_terminated);
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pthread_mutex_unlock(&m_connection_terminated_lock);
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}
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static int stricmp(char const *a, char const *b) {
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for (;; a++, b++) {
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int d = tolower((unsigned char)*a) - tolower((unsigned char)*b);
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if (d != 0 || !*a)
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return d;
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}
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}
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static void ble_discovered_device(void *adapter, const char* addr, const char* name, void *user_data) {
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int ret;
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if (stricmp(addr, m_argument.mac_address) != 0) {
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return;
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}
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GATTLIB_LOG(GATTLIB_INFO, "Found bluetooth device '%s'", m_argument.mac_address);
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ret = gattlib_connect(adapter, addr, GATTLIB_CONNECTION_OPTIONS_NONE, on_device_connect, NULL);
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if (ret != GATTLIB_SUCCESS) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to connect to the bluetooth device '%s'", addr);
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}
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}
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static void* ble_task(void* arg) {
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char* addr = arg;
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void* adapter;
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int ret;
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ret = gattlib_adapter_open(m_argument.adapter_name, &adapter);
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if (ret) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to open adapter.");
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return NULL;
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}
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ret = gattlib_adapter_scan_enable(adapter, ble_discovered_device, BLE_SCAN_TIMEOUT, addr);
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if (ret) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to scan.");
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return NULL;
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}
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// Wait for the device to be connected
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pthread_mutex_lock(&m_connection_terminated_lock);
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pthread_cond_wait(&m_connection_terminated, &m_connection_terminated_lock);
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pthread_mutex_unlock(&m_connection_terminated_lock);
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return NULL;
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}
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int main(int argc, char *argv[]) {
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int ret;
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if ((argc != 4) && (argc != 5)) {
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usage(argv);
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return 1;
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}
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#ifdef GATTLIB_LOG_BACKEND_SYSLOG
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openlog("gattlib_read_write", LOG_CONS | LOG_NDELAY | LOG_PERROR, LOG_USER);
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setlogmask(LOG_UPTO(LOG_INFO));
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#endif
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m_argument.adapter_name = NULL;
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m_argument.mac_address = argv[1];
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if (strcmp(argv[2], "read") == 0) {
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m_argument.operation = READ;
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} else if ((strcmp(argv[2], "write") == 0) && (argc == 5)) {
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m_argument.operation = WRITE;
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if ((strlen(argv[4]) >= 2) && (argv[4][0] == '0') && ((argv[4][1] == 'x') || (argv[4][1] == 'X'))) {
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m_argument.value_data = strtol(argv[4], NULL, 16);
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} else {
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m_argument.value_data = strtol(argv[4], NULL, 0);
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}
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printf("Value to write: 0x%lx\n", m_argument.value_data);
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} else {
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usage(argv);
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return 1;
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}
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if (gattlib_string_to_uuid(argv[3], strlen(argv[3]) + 1, &m_argument.uuid) < 0) {
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usage(argv);
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return 1;
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}
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ret = gattlib_mainloop(ble_task, NULL);
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if (ret != GATTLIB_SUCCESS) {
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GATTLIB_LOG(GATTLIB_ERROR, "Failed to create gattlib mainloop");
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}
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return 0;
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}
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