libroot/os/driver_settings.cpp

129 check_handle(settings_handle *handle)
131 	if (handle == NULL
132 		|| handle->magic != SETTINGS_MAGIC)
140 get_parameter(settings_handle *handle, const char *name)
143 	for (i = handle->settings.parameter_count; i-- > 0;) {
144 		if (!strcmp(handle->settings.parameters[i].name, name))
145 			return &handle->settings.parameters[i];
365 parse_settings(settings_handle *handle)
367 	char *text = handle->text;
369 	memset(&handle->settings, 0, sizeof(struct driver_settings));
375 	return parse_parameters(&handle->settings.parameters,
376 		&handle->settings.parameter_count, &text, 0);
393 free_settings(settings_handle *handle)
396 	for (i = handle->settings.parameter_count; i-- > 0;)
397 		free_parameter(&handle->settings.parameters[i]);
399 	free(handle->settings.parameters);
400 	free(handle->text);
401 	free(handle);
408 	settings_handle *handle = (settings_handle*)malloc(sizeof(settings_handle));
409 	if (handle == NULL)
412 	handle->magic = SETTINGS_MAGIC;
413 	handle->text = buffer;
417 		handle->ref_count = 1;
418 		strlcpy(handle->name, driverName, sizeof(handle->name));
420 		handle->ref_count = -1;
421 		handle->name[0] = 0;
425 	if (parse_settings(handle) == B_OK)
426 		return handle;
428 	free(handle);
450 			settings_handle *handle;
456 			handle = new_settings(text, driverName);
457 			if (handle != NULL) {
459 				return handle;
617 	settings_handle *handle = NULL;
621 	while ((handle = (settings_handle*)list_get_next_item(&sHandles, handle))
623 		if (!strcmp(handle->name, name))
624 			return handle;
641 		settings_handle *handle
643 		if (handle == NULL)
647 			handle->text = (char*)malloc(settings->size + 1);
648 			if (handle->text == NULL) {
649 				free(handle);
653 			memcpy(handle->text, settings->buffer, settings->size);
654 			handle->text[settings->size] = '\0';
657 			handle->text = NULL;
659 		strlcpy(handle->name, settings->name, sizeof(handle->name));
660 		handle->settings.parameters = NULL;
661 		handle->settings.parameter_count = 0;
662 		handle->magic = 0;
665 		if (!strcmp(handle->name, B_SAFEMODE_DRIVER_SETTINGS)) {
668 			handle->ref_count = 1;
670 			handle->ref_count = 0;
672 		list_add_item(&sHandles, handle);
688 	settings_handle *handle = (settings_handle *)_handle;
689 	if (!check_handle(handle))
695 	if (handle->ref_count > 0) {
696 		if (--handle->ref_count == 0 && gBootDevice > 0) {
697 			// don't unload an handle when /boot is not available
698 			list_remove_link(&handle->link);
700 			handle = NULL;
705 	if (handle != NULL)
706 		free_settings(handle);
715 	settings_handle *handle;
724 	handle = find_driver_settings(driverName);
725 	if (handle != NULL && handle->ref_count == 0 && gBootDevice > 0) {
726 		// A handle with a zero ref_count should be unloaded if /boot is
728 		list_remove_link(&handle->link);
729 		free_settings(handle);
730 	} else if (handle != NULL) {
731 		handle->ref_count++;
734 		if (handle->magic != SETTINGS_MAGIC) {
735 			handle->magic = SETTINGS_MAGIC;
737 			if (parse_settings(handle) != B_OK) {
739 				free(handle->text);
740 				handle->text = NULL;
741 				handle = NULL;
745 		return handle;
767 				settings_handle *handle =  new_settings(text, driverName);
768 				if (handle == NULL)
770 				return handle;
804 	handle = load_driver_settings_from_file(file, driverName);
807 	if (handle != NULL)
808 		list_add_item(&sHandles, handle);
813 	return (void *)handle;
825 	Returns a new driver_settings handle that has the parsed contents
841 	settings_handle *handle = new_settings(text, NULL);
842 	if (handle == NULL)
844 	return handle;
856 	If the "handle" parameter is not a valid driver settings handle, or
863 	settings_handle *handle = (settings_handle *)_handle;
867 	if (!check_handle(handle) || !buffer || *_bufferSize == 0)
870 	for (i = 0; i < handle->settings.parameter_count; i++) {
871 		put_parameter(&buffer, &bufferSize, &handle->settings.parameters[i],
886 	Also returns "unknownValue" if the handle passed in was not valid.
892 	settings_handle *handle = (settings_handle*)_handle;
896 	if (!check_handle(handle))
900 	if ((parameter = get_parameter(handle, keyName)) == NULL)
933 	settings_handle* handle = (settings_handle*)_handle;
936 	if (!check_handle(handle))
940 	if ((parameter = get_parameter(handle, keyName)) == NULL)
952 get_driver_settings(void *handle)
954 	if (!check_handle((settings_handle*)handle))
957 	return &((settings_handle *)handle)->settings;