mirror of https://github.com/labapart/gattlib
90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
/*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 2024, Olivier Martin <olivier@labapart.org>
|
|
*/
|
|
|
|
#include "gattlib_internal.h"
|
|
|
|
#if defined(WITH_PYTHON)
|
|
void gattlib_connected_device_python_callback(gattlib_adapter_t* adapter, const char *dst, gattlib_connection_t* connection, int error, void* user_data) {
|
|
struct gattlib_python_args* args = user_data;
|
|
PyObject *result;
|
|
|
|
// In case of Python support, we ensure we acquire the GIL (Global Intepreter Lock) to have
|
|
// a thread-safe Python execution.
|
|
PyGILState_STATE d_gstate = PyGILState_Ensure();
|
|
|
|
const char* argument_string;
|
|
// We pass pointer into integer/long parameter. We need to check the address size of the platform
|
|
// arguments: (gattlib_adapter_t* adapter, const char *dst, gattlib_connection_t* connection, void* user_data)
|
|
if (sizeof(void*) == 8) {
|
|
argument_string = "(LsLIO)";
|
|
} else {
|
|
argument_string = "(IsIIO)";
|
|
}
|
|
PyObject *arglist = Py_BuildValue(argument_string, adapter, dst, connection, error, args->args);
|
|
if (arglist == NULL) {
|
|
GATTLIB_LOG(GATTLIB_ERROR, "Could not convert argument list to Python arguments");
|
|
PyErr_Print();
|
|
goto ON_ERROR;
|
|
}
|
|
#if PYTHON_VERSION >= PYTHON_VERSIONS(3, 9)
|
|
result = PyObject_Call(args->callback, arglist, NULL);
|
|
#else
|
|
result = PyEval_CallObject(args->callback, arglist);
|
|
#endif
|
|
Py_DECREF(arglist);
|
|
|
|
if (result == NULL) {
|
|
GATTLIB_LOG(GATTLIB_ERROR, "Python connection device handler has raised an exception.");
|
|
PyErr_Print();
|
|
}
|
|
|
|
ON_ERROR:
|
|
PyGILState_Release(d_gstate);
|
|
}
|
|
#endif
|
|
|
|
static gpointer _gattlib_connected_device_thread(gpointer data) {
|
|
gattlib_connection_t* connection = data;
|
|
const gchar *device_mac_address = org_bluez_device1_get_address(connection->backend.device);
|
|
|
|
// Mutex to ensure the device is valid and not freed during its use
|
|
g_mutex_lock(&connection->device->device_mutex);
|
|
// Mutex to ensure the handler is valid
|
|
g_rec_mutex_lock(&connection->on_connection.mutex);
|
|
|
|
if (!gattlib_has_valid_handler(&connection->on_connection)) {
|
|
goto EXIT;
|
|
}
|
|
|
|
connection->on_connection.callback.connection_handler(
|
|
connection->device->adapter, device_mac_address, connection, 0 /* no error */,
|
|
connection->on_connection.user_data);
|
|
|
|
EXIT:
|
|
g_rec_mutex_unlock(&connection->on_connection.mutex);
|
|
g_mutex_unlock(&connection->device->device_mutex);
|
|
return NULL;
|
|
}
|
|
|
|
static void* _connected_device_thread_args_allocator(va_list args) {
|
|
gattlib_connection_t* connection = va_arg(args, gattlib_connection_t*);
|
|
return connection;
|
|
}
|
|
|
|
void gattlib_on_connected_device(gattlib_connection_t* connection) {
|
|
gattlib_handler_dispatch_to_thread(
|
|
&connection->on_connection,
|
|
#if defined(WITH_PYTHON)
|
|
gattlib_connected_device_python_callback /* python_callback */,
|
|
#else
|
|
NULL, // No Python support. So we do not need to check the callback against Python callback
|
|
#endif
|
|
_gattlib_connected_device_thread /* thread_func */,
|
|
"gattlib_connected_device" /* thread_name */,
|
|
_connected_device_thread_args_allocator /* thread_args_allocator */,
|
|
connection);
|
|
}
|