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authorJo-Philipp Wich <jow@openwrt.org>2014-06-11 12:37:19 +0000
committerJo-Philipp Wich <jow@openwrt.org>2014-06-11 12:37:19 +0000
commit91b97bc9f625d09431dc1c753209a037d7c42fbc (patch)
tree428230e6d8f0d7ac47dcccebabccd09667d58ea5 /libs/fastindex
parent2d05a6135a0d29a82148f9bfc215b2de5b609dd5 (diff)
Remove unmaintained components: lucid, fastindex, niu
Diffstat (limited to 'libs/fastindex')
-rw-r--r--libs/fastindex/Makefile13
-rw-r--r--libs/fastindex/src/fastindex.c379
-rw-r--r--libs/fastindex/src/list.h601
3 files changed, 0 insertions, 993 deletions
diff --git a/libs/fastindex/Makefile b/libs/fastindex/Makefile
deleted file mode 100644
index ee1a40ea8..000000000
--- a/libs/fastindex/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-include ../../build/module.mk
-include ../../build/config.mk
-include ../../build/gccconfig.mk
-
-%.o: %.c
- $(COMPILE) $(LUA_CFLAGS) $(FPIC) -c -o $@ $<
-
-compile: src/fastindex.o
- mkdir -p dist$(LUCI_LIBRARYDIR)
- $(LINK) $(SHLIB_FLAGS) -o dist$(LUCI_LIBRARYDIR)/fastindex.so src/fastindex.o $(LUA_SHLIBS)
-
-clean:
- rm -f src/*.o
diff --git a/libs/fastindex/src/fastindex.c b/libs/fastindex/src/fastindex.c
deleted file mode 100644
index c9c64bf75..000000000
--- a/libs/fastindex/src/fastindex.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * fastindex - fast lua module indexing plugin
- * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
- *
- * 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.
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/cdefs.h>
-
-#ifndef _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE /* XXX: portability hack for timestamp */
-#endif
-
-#include <sys/stat.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <errno.h>
-#include <glob.h>
-
-#include <lualib.h>
-#include <lauxlib.h>
-#include "list.h"
-
-#define MODNAME "luci.fastindex"
-#define DEFAULT_BUFLEN 1024
-
-//#define DEBUG 1
-
-#ifdef DEBUG
-#define DPRINTF(...) fprintf(stderr, __VA_ARGS__)
-#else
-#define DPRINTF(...) do {} while (0)
-#endif
-
-/**
- * list_for_each_offset - iterate over a list, start with the provided pointer
- * @pos: the &struct list_head to use as a loop cursor.
- * @head: the head for your list.
- */
-#define list_for_each_offset(pos, head, offset) \
- for (pos = (offset)->next; pos != (offset); \
- pos = ((pos->next == (head)) && ((offset) != (head)) ? (head)->next : pos->next))
-
-static char *namespace = NULL;
-
-struct fastindex_entry {
- struct list_head list;
- time_t timestamp;
- int checked;
- char *name;
-};
-
-struct fastindex_pattern {
- struct list_head list;
- char pattern[];
-};
-
-struct fastindex {
- lua_State *L;
- int checked;
- char *func;
- struct list_head patterns;
- struct list_head *last;
- struct list_head entries;
- int ofs;
- char *buf;
- int buflen;
-};
-
-static inline struct fastindex *
-to_fastindex(struct lua_State *L)
-{
- struct fastindex *f;
- lua_getfield(L, lua_upvalueindex(1), "__data");
- f = lua_touserdata(L, -1);
- lua_pop(L, 1);
- return f;
-}
-
-static int
-fastindex_module(lua_State *L)
-{
- const char *s;
- s = luaL_checkstring(L, 1);
-
- if (s) {
- if (namespace)
- free(namespace);
- namespace = strdup(s);
- }
-
- return 0;
-}
-
-static struct fastindex_entry *
-find_entry(struct fastindex *f, char *name)
-{
- struct list_head *p;
-
- if (!f->last)
- f->last = &f->entries;
-
- list_for_each_offset(p, &f->entries, f->last) {
- struct fastindex_entry *e;
- e = container_of(p, struct fastindex_entry, list);
- if (!strcmp(e->name, name))
- return e;
- }
- return NULL;
-}
-
-static struct fastindex_entry *
-new_entry(struct fastindex *f, char *name)
-{
- struct fastindex_entry *e;
-
- e = malloc(sizeof(struct fastindex_entry));
- if (!e)
- goto error;
-
- memset(e, 0, sizeof(struct fastindex_entry));
- e->name = strdup(name);
- if (!e->name) {
- free(e);
- goto error;
- }
- INIT_LIST_HEAD(&e->list);
-
- return e;
-
-error:
- return NULL;
-}
-
-static void free_entry(struct fastindex_entry *e)
-{
- list_del(&e->list);
- free(e->name);
- free(e);
-}
-
-int bufferwriter(lua_State *L, const void *p, size_t sz, void *ud)
-{
- struct fastindex *f = ud;
-
- while (f->ofs + sz > f->buflen) {
- char *b = f->buf;
- f->buflen *= 2;
- f->buf = realloc(f->buf, f->buflen);
- if (!f->buf) {
- free(b);
- return 1;
- }
- }
- memcpy(f->buf + f->ofs, p, sz);
- f->ofs += sz;
- return 0;
-}
-
-static void
-load_index(struct fastindex *f, struct fastindex_entry *e)
-{
- lua_State *L;
-
- DPRINTF("Loading module: %s\n", e->name);
-
- if (!f->buf)
- f->buf = malloc(f->buflen);
-
- if (!f->buf)
- luaL_error(f->L, "Out of memory!\n");
-
- f->ofs = 0;
- L = luaL_newstate();
- if (!L)
- return;
-
- namespace = NULL;
- luaL_openlibs(L);
- lua_pushcfunction(L, fastindex_module);
- lua_setfield(L, LUA_GLOBALSINDEX, "module");
-
- do {
- if (luaL_dofile(L, e->name)) {
- DPRINTF("Warning: unable to open module '%s'\n", e->name);
- break;
- }
-
- lua_getglobal(L, f->func);
- lua_dump(L, bufferwriter, f);
- DPRINTF("Got %d bytes\n", f->ofs);
- if (f->ofs == 0)
- break;
- lua_createtable(f->L, (namespace ? 2 : 1), 0);
- luaL_loadbuffer(f->L, f->buf, f->ofs, "tmp");
- lua_rawseti(f->L, -2, 1);
- if (namespace) {
- DPRINTF("Module has namespace '%s'\n", namespace);
- lua_pushstring(f->L, namespace);
- lua_rawseti(f->L, -2, 2);
- free(namespace);
- namespace = NULL;
- }
- lua_setfield(f->L, -2, e->name);
- } while (0);
-
- lua_close(L);
-}
-
-
-static int
-fastindex_scan(lua_State *L)
-{
- struct list_head *tmp, *p;
- struct fastindex *f;
- glob_t gl;
- int i;
- int gl_flags = GLOB_NOESCAPE | GLOB_NOSORT | GLOB_MARK;
-
- f = to_fastindex(L);
- f->checked++;
-
-
- if (list_empty(&f->patterns))
- return 0;
-
- lua_getfield(L, lua_upvalueindex(1), "indexes");
- list_for_each(p, &f->patterns) {
- struct fastindex_pattern *pt = container_of(p, struct fastindex_pattern, list);
- glob(pt->pattern, gl_flags, NULL, &gl);
- gl_flags |= GLOB_APPEND;
- }
- for (i = 0; i < gl.gl_pathc; i++) {
- struct fastindex_entry *e;
- struct stat st;
-
- if (stat(gl.gl_pathv[i], &st))
- continue;
-
- if ((st.st_mode & S_IFMT) != S_IFREG)
- continue;
-
- e = find_entry(f, gl.gl_pathv[i]);
- if (!e) {
- e = new_entry(f, gl.gl_pathv[i]);
- list_add_tail(&e->list, &f->entries);
- }
-
- e->checked = f->checked;
- if ((e->timestamp < st.st_mtime)) {
- load_index(f, e);
- e->timestamp = st.st_mtime;
- }
- }
- globfree(&gl);
- list_for_each_safe(p, tmp, &f->entries) {
- struct fastindex_entry *e = container_of(p, struct fastindex_entry, list);
- if (e->checked < f->checked) {
- lua_pushnil(f->L);
- lua_setfield(f->L, -2, e->name);
- free_entry(e);
- }
- }
- lua_pop(L, 1);
-
- return 0;
-}
-
-static int
-fastindex_free(lua_State *L)
-{
- struct fastindex *f;
- struct list_head *p, *tmp;
-
- f = lua_touserdata(L, -1);
- list_for_each_safe(p, tmp, &f->patterns) {
- struct fastindex_pattern *pt;
- pt = container_of(p, struct fastindex_pattern, list);
- list_del(p);
- free(pt);
- }
- list_for_each_safe(p, tmp, &f->entries) {
- struct fastindex_entry *e;
- e = container_of(p, struct fastindex_entry, list);
- free_entry(e);
- }
- return 0;
-}
-
-static int
-fastindex_add(lua_State *L)
-{
- struct fastindex_pattern *pt;
- struct fastindex *f;
- const char *str;
-
- f = to_fastindex(L);
- str = luaL_checkstring(L, 1);
- if (!str)
- luaL_error(L, "Invalid argument");
-
- pt = malloc(sizeof(struct fastindex_pattern) + strlen(str) + 1);
- if (!pt)
- luaL_error(L, "Out of memory");
-
- INIT_LIST_HEAD(&pt->list);
- strcpy(pt->pattern, str);
- list_add(&pt->list, &f->patterns);
-
- return 0;
-}
-
-static const luaL_Reg fastindex_m[] = {
- { "add", fastindex_add },
- { "scan", fastindex_scan },
- { NULL, NULL }
-};
-
-static int
-fastindex_new(lua_State *L)
-{
- struct fastindex *f;
- const char *func;
-
- func = luaL_checkstring(L, 1);
-
- f = lua_newuserdata(L, sizeof(struct fastindex));
- lua_createtable(L, 0, 2);
- lua_pushvalue(L, -1);
- lua_setfield(L, -2, "__index");
- lua_pushcfunction(L, fastindex_free);
- lua_setfield(L, -2, "__gc");
- lua_pushvalue(L, -1);
- lua_setmetatable(L, -3);
- lua_pushvalue(L, -2);
- lua_setfield(L, -2, "__data");
- lua_createtable(L, 0, 1);
- lua_setfield(L, -2, "indexes");
- lua_pushvalue(L, -2);
- luaI_openlib(L, NULL, fastindex_m, 1);
-
- memset(f, 0, sizeof(struct fastindex));
- f->L = L;
- f->buflen = DEFAULT_BUFLEN;
- INIT_LIST_HEAD(&f->entries);
- INIT_LIST_HEAD(&f->patterns);
-
- f->func = strdup(func);
- if (!f->func) {
- if (f->func)
- free(f->func);
- luaL_error(L, "Out of memory\n");
- }
-
- return 1;
-}
-
-static const luaL_Reg fastindex[] = {
- { "new", fastindex_new },
- { NULL, NULL },
-};
-
-int
-luaopen_luci_fastindex(lua_State *L)
-{
- luaL_register(L, MODNAME, fastindex);
- return 0;
-}
diff --git a/libs/fastindex/src/list.h b/libs/fastindex/src/list.h
deleted file mode 100644
index 2959a061d..000000000
--- a/libs/fastindex/src/list.h
+++ /dev/null
@@ -1,601 +0,0 @@
-#ifndef _LINUX_LIST_H
-#define _LINUX_LIST_H
-
-#include <stddef.h>
-/**
- * container_of - cast a member of a structure out to the containing structure
- * @ptr: the pointer to the member.
- * @type: the type of the container struct this is embedded in.
- * @member: the name of the member within the struct.
- *
- */
-#ifndef container_of
-#define container_of(ptr, type, member) ( \
- (type *)( (char *)ptr - offsetof(type,member) ))
-#endif
-
-
-/*
- * Simple doubly linked list implementation.
- *
- * Some of the internal functions ("__xxx") are useful when
- * manipulating whole lists rather than single entries, as
- * sometimes we already know the next/prev entries and we can
- * generate better code by using them directly rather than
- * using the generic single-entry routines.
- */
-
-struct list_head {
- struct list_head *next, *prev;
-};
-
-#define LIST_HEAD_INIT(name) { &(name), &(name) }
-
-#define LIST_HEAD(name) \
- struct list_head name = LIST_HEAD_INIT(name)
-
-static inline void INIT_LIST_HEAD(struct list_head *list)
-{
- list->next = list;
- list->prev = list;
-}
-
-/*
- * Insert a new entry between two known consecutive entries.
- *
- * This is only for internal list manipulation where we know
- * the prev/next entries already!
- */
-static inline void __list_add(struct list_head *new,
- struct list_head *prev,
- struct list_head *next)
-{
- next->prev = new;
- new->next = next;
- new->prev = prev;
- prev->next = new;
-}
-
-/**
- * list_add - add a new entry
- * @new: new entry to be added
- * @head: list head to add it after
- *
- * Insert a new entry after the specified head.
- * This is good for implementing stacks.
- */
-static inline void list_add(struct list_head *new, struct list_head *head)
-{
- __list_add(new, head, head->next);
-}
-
-
-/**
- * list_add_tail - add a new entry
- * @new: new entry to be added
- * @head: list head to add it before
- *
- * Insert a new entry before the specified head.
- * This is useful for implementing queues.
- */
-static inline void list_add_tail(struct list_head *new, struct list_head *head)
-{
- __list_add(new, head->prev, head);
-}
-
-
-/*
- * Delete a list entry by making the prev/next entries
- * point to each other.
- *
- * This is only for internal list manipulation where we know
- * the prev/next entries already!
- */
-static inline void __list_del(struct list_head * prev, struct list_head * next)
-{
- next->prev = prev;
- prev->next = next;
-}
-
-/**
- * list_del - deletes entry from list.
- * @entry: the element to delete from the list.
- * Note: list_empty() on entry does not return true after this, the entry is
- * in an undefined state.
- */
-static inline void list_del(struct list_head *entry)
-{
- __list_del(entry->prev, entry->next);
- entry->next = NULL;
- entry->prev = NULL;
-}
-
-/**
- * list_replace - replace old entry by new one
- * @old : the element to be replaced
- * @new : the new element to insert
- *
- * If @old was empty, it will be overwritten.
- */
-static inline void list_replace(struct list_head *old,
- struct list_head *new)
-{
- new->next = old->next;
- new->next->prev = new;
- new->prev = old->prev;
- new->prev->next = new;
-}
-
-static inline void list_replace_init(struct list_head *old,
- struct list_head *new)
-{
- list_replace(old, new);
- INIT_LIST_HEAD(old);
-}
-
-/**
- * list_del_init - deletes entry from list and reinitialize it.
- * @entry: the element to delete from the list.
- */
-static inline void list_del_init(struct list_head *entry)
-{
- __list_del(entry->prev, entry->next);
- INIT_LIST_HEAD(entry);
-}
-
-/**
- * list_move - delete from one list and add as another's head
- * @list: the entry to move
- * @head: the head that will precede our entry
- */
-static inline void list_move(struct list_head *list, struct list_head *head)
-{
- __list_del(list->prev, list->next);
- list_add(list, head);
-}
-
-/**
- * list_move_tail - delete from one list and add as another's tail
- * @list: the entry to move
- * @head: the head that will follow our entry
- */
-static inline void list_move_tail(struct list_head *list,
- struct list_head *head)
-{
- __list_del(list->prev, list->next);
- list_add_tail(list, head);
-}
-
-/**
- * list_is_last - tests whether @list is the last entry in list @head
- * @list: the entry to test
- * @head: the head of the list
- */
-static inline int list_is_last(const struct list_head *list,
- const struct list_head *head)
-{
- return list->next == head;
-}
-
-/**
- * list_empty - tests whether a list is empty
- * @head: the list to test.
- */
-static inline int list_empty(const struct list_head *head)
-{
- return head->next == head;
-}
-
-/**
- * list_empty_careful - tests whether a list is empty and not being modified
- * @head: the list to test
- *
- * Description:
- * tests whether a list is empty _and_ checks that no other CPU might be
- * in the process of modifying either member (next or prev)
- *
- * NOTE: using list_empty_careful() without synchronization
- * can only be safe if the only activity that can happen
- * to the list entry is list_del_init(). Eg. it cannot be used
- * if another CPU could re-list_add() it.
- */
-static inline int list_empty_careful(const struct list_head *head)
-{
- struct list_head *next = head->next;
- return (next == head) && (next == head->prev);
-}
-
-static inline void __list_splice(struct list_head *list,
- struct list_head *head)
-{
- struct list_head *first = list->next;
- struct list_head *last = list->prev;
- struct list_head *at = head->next;
-
- first->prev = head;
- head->next = first;
-
- last->next = at;
- at->prev = last;
-}
-
-/**
- * list_splice - join two lists
- * @list: the new list to add.
- * @head: the place to add it in the first list.
- */
-static inline void list_splice(struct list_head *list, struct list_head *head)
-{
- if (!list_empty(list))
- __list_splice(list, head);
-}
-
-/**
- * list_splice_init - join two lists and reinitialise the emptied list.
- * @list: the new list to add.
- * @head: the place to add it in the first list.
- *
- * The list at @list is reinitialised
- */
-static inline void list_splice_init(struct list_head *list,
- struct list_head *head)
-{
- if (!list_empty(list)) {
- __list_splice(list, head);
- INIT_LIST_HEAD(list);
- }
-}
-
-/**
- * list_entry - get the struct for this entry
- * @ptr: the &struct list_head pointer.
- * @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
- */
-#define list_entry(ptr, type, member) \
- container_of(ptr, type, member)
-
-/**
- * list_first_entry - get the first element from a list
- * @ptr: the list head to take the element from.
- * @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
- *
- * Note, that list is expected to be not empty.
- */
-#define list_first_entry(ptr, type, member) \
- list_entry((ptr)->next, type, member)
-
-/**
- * list_for_each - iterate over a list
- * @pos: the &struct list_head to use as a loop cursor.
- * @head: the head for your list.
- */
-#define list_for_each(pos, head) \
- for (pos = (head)->next; pos != (head); \
- pos = pos->next)
-
-/**
- * __list_for_each - iterate over a list
- * @pos: the &struct list_head to use as a loop cursor.
- * @head: the head for your list.
- *
- * This variant differs from list_for_each() in that it's the
- * simplest possible list iteration code, no prefetching is done.
- * Use this for code that knows the list to be very short (empty
- * or 1 entry) most of the time.
- */
-#define __list_for_each(pos, head) \
- for (pos = (head)->next; pos != (head); pos = pos->next)
-
-/**
- * list_for_each_prev - iterate over a list backwards
- * @pos: the &struct list_head to use as a loop cursor.
- * @head: the head for your list.
- */
-#define list_for_each_prev(pos, head) \
- for (pos = (head)->prev; pos != (head); \
- pos = pos->prev)
-
-/**
- * list_for_each_safe - iterate over a list safe against removal of list entry
- * @pos: the &struct list_head to use as a loop cursor.
- * @n: another &struct list_head to use as temporary storage
- * @head: the head for your list.
- */
-#define list_for_each_safe(pos, n, head) \
- for (pos = (head)->next, n = pos->next; pos != (head); \
- pos = n, n = pos->next)
-
-/**
- * list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry
- * @pos: the &struct list_head to use as a loop cursor.
- * @n: another &struct list_head to use as temporary storage
- * @head: the head for your list.
- */
-#define list_for_each_prev_safe(pos, n, head) \
- for (pos = (head)->prev, n = pos->prev; \
- pos != (head); \
- pos = n, n = pos->prev)
-
-/**
- * list_for_each_entry - iterate over list of given type
- * @pos: the type * to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- */
-#define list_for_each_entry(pos, head, member) \
- for (pos = list_entry((head)->next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = list_entry(pos->member.next, typeof(*pos), member))
-
-/**
- * list_for_each_entry_reverse - iterate backwards over list of given type.
- * @pos: the type * to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- */
-#define list_for_each_entry_reverse(pos, head, member) \
- for (pos = list_entry((head)->prev, typeof(*pos), member); \
- &pos->member != (head); \
- pos = list_entry(pos->member.prev, typeof(*pos), member))
-
-/**
- * list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue()
- * @pos: the type * to use as a start point
- * @head: the head of the list
- * @member: the name of the list_struct within the struct.
- *
- * Prepares a pos entry for use as a start point in list_for_each_entry_continue().
- */
-#define list_prepare_entry(pos, head, member) \
- ((pos) ? : list_entry(head, typeof(*pos), member))
-
-/**
- * list_for_each_entry_continue - continue iteration over list of given type
- * @pos: the type * to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * Continue to iterate over list of given type, continuing after
- * the current position.
- */
-#define list_for_each_entry_continue(pos, head, member) \
- for (pos = list_entry(pos->member.next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = list_entry(pos->member.next, typeof(*pos), member))
-
-/**
- * list_for_each_entry_continue_reverse - iterate backwards from the given point
- * @pos: the type * to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * Start to iterate over list of given type backwards, continuing after
- * the current position.
- */
-#define list_for_each_entry_continue_reverse(pos, head, member) \
- for (pos = list_entry(pos->member.prev, typeof(*pos), member); \
- &pos->member != (head); \
- pos = list_entry(pos->member.prev, typeof(*pos), member))
-
-/**
- * list_for_each_entry_from - iterate over list of given type from the current point
- * @pos: the type * to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * Iterate over list of given type, continuing from current position.
- */
-#define list_for_each_entry_from(pos, head, member) \
- for (; &pos->member != (head); \
- pos = list_entry(pos->member.next, typeof(*pos), member))
-
-/**
- * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
- * @pos: the type * to use as a loop cursor.
- * @n: another type * to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- */
-#define list_for_each_entry_safe(pos, n, head, member) \
- for (pos = list_entry((head)->next, typeof(*pos), member), \
- n = list_entry(pos->member.next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = n, n = list_entry(n->member.next, typeof(*n), member))
-
-/**
- * list_for_each_entry_safe_continue
- * @pos: the type * to use as a loop cursor.
- * @n: another type * to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * Iterate over list of given type, continuing after current point,
- * safe against removal of list entry.
- */
-#define list_for_each_entry_safe_continue(pos, n, head, member) \
- for (pos = list_entry(pos->member.next, typeof(*pos), member), \
- n = list_entry(pos->member.next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = n, n = list_entry(n->member.next, typeof(*n), member))
-
-/**
- * list_for_each_entry_safe_from
- * @pos: the type * to use as a loop cursor.
- * @n: another type * to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * Iterate over list of given type from current point, safe against
- * removal of list entry.
- */
-#define list_for_each_entry_safe_from(pos, n, head, member) \
- for (n = list_entry(pos->member.next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = n, n = list_entry(n->member.next, typeof(*n), member))
-
-/**
- * list_for_each_entry_safe_reverse
- * @pos: the type * to use as a loop cursor.
- * @n: another type * to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * Iterate backwards over list of given type, safe against removal
- * of list entry.
- */
-#define list_for_each_entry_safe_reverse(pos, n, head, member) \
- for (pos = list_entry((head)->prev, typeof(*pos), member), \
- n = list_entry(pos->member.prev, typeof(*pos), member); \
- &pos->member != (head); \
- pos = n, n = list_entry(n->member.prev, typeof(*n), member))
-
-/*
- * Double linked lists with a single pointer list head.
- * Mostly useful for hash tables where the two pointer list head is
- * too wasteful.
- * You lose the ability to access the tail in O(1).
- */
-
-struct hlist_head {
- struct hlist_node *first;
-};
-
-struct hlist_node {
- struct hlist_node *next, **pprev;
-};
-
-#define HLIST_HEAD_INIT { .first = NULL }
-#define HLIST_HEAD(name) struct hlist_head name = { .first = NULL }
-#define INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
-static inline void INIT_HLIST_NODE(struct hlist_node *h)
-{
- h->next = NULL;
- h->pprev = NULL;
-}
-
-static inline int hlist_unhashed(const struct hlist_node *h)
-{
- return !h->pprev;
-}
-
-static inline int hlist_empty(const struct hlist_head *h)
-{
- return !h->first;
-}
-
-static inline void __hlist_del(struct hlist_node *n)
-{
- struct hlist_node *next = n->next;
- struct hlist_node **pprev = n->pprev;
- *pprev = next;
- if (next)
- next->pprev = pprev;
-}
-
-static inline void hlist_del(struct hlist_node *n)
-{
- __hlist_del(n);
- n->next = NULL;
- n->pprev = NULL;
-}
-
-static inline void hlist_del_init(struct hlist_node *n)
-{
- if (!hlist_unhashed(n)) {
- __hlist_del(n);
- INIT_HLIST_NODE(n);
- }
-}
-
-
-static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
-{
- struct hlist_node *first = h->first;
- n->next = first;
- if (first)
- first->pprev = &n->next;
- h->first = n;
- n->pprev = &h->first;
-}
-
-
-/* next must be != NULL */
-static inline void hlist_add_before(struct hlist_node *n,
- struct hlist_node *next)
-{
- n->pprev = next->pprev;
- n->next = next;
- next->pprev = &n->next;
- *(n->pprev) = n;
-}
-
-static inline void hlist_add_after(struct hlist_node *n,
- struct hlist_node *next)
-{
- next->next = n->next;
- n->next = next;
- next->pprev = &n->next;
-
- if(next->next)
- next->next->pprev = &next->next;
-}
-
-#define hlist_entry(ptr, type, member) container_of(ptr,type,member)
-
-#define hlist_for_each(pos, head) \
- for (pos = (head)->first; pos; pos = pos->next)
-
-#define hlist_for_each_safe(pos, n, head) \
- for (pos = (head)->first; pos; pos = n)
-
-/**
- * hlist_for_each_entry - iterate over list of given type
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry(tpos, pos, head, member) \
- for (pos = (head)->first; pos && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
-
-/**
- * hlist_for_each_entry_continue - iterate over a hlist continuing after current point
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry_continue(tpos, pos, member) \
- for (pos = (pos)->next; pos && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
-
-/**
- * hlist_for_each_entry_from - iterate over a hlist continuing from current point
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry_from(tpos, pos, member) \
- for (; pos && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
-
-/**
- * hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @n: another &struct hlist_node to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry_safe(tpos, pos, n, head, member) \
- for (pos = (head)->first; \
- pos && ({ n = pos->next; 1; }) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = n)
-
-#endif