Function srd_init

libsigrokdecode4DSL/srd.c:188–268

* Initialize libsigrokdecode. * * This initializes the Python interpreter, and creates and initializes * a "sigrokdecode" Python module. * * Then, it searches for sigrok protocol decoders in the "decoders" * subdirectory of the the libsigrokdecode installation directory. * All decoders that are found are loaded into memory and added to an * internal list of decoders, which can be queried v

 * @since 0.1.0
 */
SRD_API int srd_init(const char *path)
{
	const char *const *sys_datadirs;
	size_t i;
	int ret;
	const char *env_path;

	srd_log_init(); //init log
 	
	if (max_session_id != -1) {
		srd_err("libsigrokdecode is already initialized.");
		return SRD_ERR;
	}

	srd_dbg("Initializing libsigrokdecode.");

	/* Add our own module to the list of built-in modules. */
	PyImport_AppendInittab("sigrokdecode", PyInit_sigrokdecode);

	/* Initialize the Python interpreter. */
    Py_InitializeEx(0); 

#ifdef DECODERS_DIR
	/* Hardcoded decoders install location, if defined. */
	if ((ret = srd_decoder_searchpath_add(DECODERS_DIR)) != SRD_OK) {
		Py_Finalize();
		return ret;
	}
#endif 

	/* Path specified by the user. */
	if (path) {
		if ((ret = srd_decoder_searchpath_add(path)) != SRD_OK) {
			Py_Finalize();
			return ret;
		}
	}
	else{ 
		/* Locations relative to the XDG system data directories. */
		sys_datadirs = g_get_system_data_dirs();
		for (i = g_strv_length((char **)sys_datadirs); i > 0; i--)
		{
			ret = searchpath_add_xdg_dir(sys_datadirs[i - 1]);
			if (ret != SRD_OK)
			{
				Py_Finalize();
				return ret;
			}
		}

		/* Location relative to the XDG user data directory. */
		ret = searchpath_add_xdg_dir(g_get_user_data_dir());
		if (ret != SRD_OK)
		{
			Py_Finalize();
			return ret;
		}