X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=blobdiff_plain;f=utils.h;h=893d3d3a57fa93f18426c9994b0e1c520ac046ff;hp=cbb57759978e544b23d47694cc59dc202779dd71;hb=bfe5db1ea8018aaa940dc6e991110fac62b85516;hpb=33a44b9c7d5e8c87303b8126fe9e01f8979f48e5 diff --git a/utils.h b/utils.h index cbb5775..893d3d3 100644 --- a/utils.h +++ b/utils.h @@ -1,8 +1,41 @@ +/* + * netifd - network interface daemon + * Copyright (C) 2012 Felix Fietkau + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ #ifndef __NETIFD_UTILS_H #define __NETIFD_UTILS_H #include #include +#include + +#ifndef __OPTIMIZE__ +#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) +#else +extern int __build_bug_on_failed; +#define BUILD_BUG_ON(condition) \ + do { \ + ((void)sizeof(char[1 - 2*!!(condition)])); \ + if (condition) __build_bug_on_failed = 1; \ + } while(0) +#endif + +static inline bool blobmsg_get_bool_default(struct blob_attr *attr, bool val) +{ + if (!attr) + return val; + + return blobmsg_get_bool(attr); +} #define __init __attribute__((constructor)) @@ -17,7 +50,6 @@ struct vlist_tree { struct avl_tree avl; vlist_update_cb update; - int key_offset; bool keep_old; bool no_delete; @@ -29,10 +61,7 @@ struct vlist_node { int version; }; -void __vlist_init(struct vlist_tree *tree, avl_tree_comp cmp, vlist_update_cb update, int offset); - -#define vlist_init(tree, cmp, update, type, node, key) \ - __vlist_init(tree, cmp, update, offsetof(type, key) - offsetof(type, node)) +void vlist_init(struct vlist_tree *tree, avl_tree_comp cmp, vlist_update_cb update); #define vlist_find(tree, name, element, node_member) \ avl_find_element(&(tree)->avl, name, element, node_member.avl) @@ -42,7 +71,7 @@ static inline void vlist_update(struct vlist_tree *tree) tree->version++; } -void vlist_add(struct vlist_tree *tree, struct vlist_node *node); +void vlist_add(struct vlist_tree *tree, struct vlist_node *node, void *key); void vlist_delete(struct vlist_tree *tree, struct vlist_node *node); void vlist_flush(struct vlist_tree *tree); void vlist_flush_all(struct vlist_tree *tree); @@ -50,6 +79,44 @@ void vlist_flush_all(struct vlist_tree *tree); #define vlist_for_each_element(tree, element, node_member) \ avl_for_each_element(&(tree)->avl, element, node_member.avl) + +struct vlist_simple_tree { + struct list_head list; + int head_offset; + int version; +}; + +struct vlist_simple_node { + struct list_head list; + int version; +}; + +#define vlist_simple_init(tree, node, member) \ + __vlist_simple_init(tree, offsetof(node, member)) + +void __vlist_simple_init(struct vlist_simple_tree *tree, int offset); +void vlist_simple_delete(struct vlist_simple_tree *tree, struct vlist_simple_node *node); +void vlist_simple_flush(struct vlist_simple_tree *tree); +void vlist_simple_flush_all(struct vlist_simple_tree *tree); + +static inline void vlist_simple_update(struct vlist_simple_tree *tree) +{ + tree->version++; +} + +static inline void vlist_simple_add(struct vlist_simple_tree *tree, struct vlist_simple_node *node) +{ + node->version = tree->version; + list_add(&node->list, &tree->list); +} + +#define vlist_simple_for_each_element(tree, element, node_member) \ + list_for_each_entry(element, &(tree)->list, node_member.list) + +#define vlist_simple_empty(tree) \ + list_empty(&(tree)->list) + + #ifdef __linux__ static inline int fls(int x) {