/* * Copyright (C) 2001 Sistina Software (UK) Limited. * * This file is released under the LGPL. */ #include "filter-composite.h" #include "dbg_malloc.h" #include "log.h" #include static int _and_p(struct dev_filter *f, struct device *dev) { struct dev_filter **filters = (struct dev_filter **) f->private; while (*filters) { if (!(*filters)->passes_filter(*filters, dev)) return 0; filters++; } return 1; } static void _destroy(struct dev_filter *f) { struct dev_filter **filters = (struct dev_filter **) f->private; while (*filters) { (*filters)->destroy(*filters); filters++; } dbg_free(f->private); dbg_free(f); } struct dev_filter *composite_filter_create(int n, ...) { struct dev_filter **filters = dbg_malloc(sizeof(*filters) * (n + 1)); struct dev_filter *cf; va_list ap; int i; if (!filters) { stack; return NULL; } if (!(cf = dbg_malloc(sizeof(*cf)))) { stack; dbg_free(filters); return NULL; } va_start(ap, n); for (i = 0; i < n; i++) { struct dev_filter *f = va_arg(ap, struct dev_filter *); filters[i] = f; } filters[i] = NULL; va_end(ap); cf->passes_filter = _and_p; cf->destroy = _destroy; cf->private = filters; return cf; }