X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=tests%2Fapi.h;h=dced0d8d204e15b84252f1f374f7b5027d12490b;hb=a5bae03d59c22e57263b8610b9fed99738303cf0;hp=9874334b1bd4838a1263837a80db6afb46d8a8ba;hpb=cd5adc03f9482b11f04f5d0b1a40bdba48cab5e2;p=urcu.git diff --git a/tests/api.h b/tests/api.h index 9874334..dced0d8 100644 --- a/tests/api.h +++ b/tests/api.h @@ -1,7 +1,7 @@ - #ifndef _INCLUDE_API_H #define _INCLUDE_API_H +#define _GNU_SOURCE #include "../config.h" /* @@ -19,7 +19,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Copyright (c) 2006 Paul E. McKenney, IBM. * @@ -27,55 +27,14 @@ * to redistribute under later versions of GPL might not be available. */ +#include #include - -#ifndef __always_inline -#define __always_inline inline -#endif - -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) -#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) - -#ifdef __ASSEMBLY__ -# define stringify_in_c(...) __VA_ARGS__ -# define ASM_CONST(x) x -#else -/* This version of stringify will deal with commas... */ -# define __stringify_in_c(...) #__VA_ARGS__ -# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " -# define __ASM_CONST(x) x##UL -# define ASM_CONST(x) __ASM_CONST(x) -#endif - - -/* - * arch-i386.h: Expose x86 atomic instructions. 80486 and better only. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, but version 2 only due to inclusion - * of Linux-kernel code. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ +#include "cpuset.h" /* * Machine parameters. */ -/* #define CAA_CACHE_LINE_SIZE 64 */ #define ____cacheline_internodealigned_in_smp \ __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))) @@ -96,7 +55,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Copyright (c) 2006 Paul E. McKenney, IBM. */ @@ -106,20 +65,10 @@ #include #include #include -#define __USE_GNU #include -#include #include /* #include "atomic.h" */ -/* - * Default machine parameters. - */ - -#ifndef CAA_CACHE_LINE_SIZE -/* #define CAA_CACHE_LINE_SIZE 128 */ -#endif /* #ifndef CAA_CACHE_LINE_SIZE */ - /* * Exclusive locking primitives. */ @@ -202,13 +151,14 @@ static int __smp_thread_id(void) } spin_lock(&__thread_id_map_mutex); for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) + if (__thread_id_map[i] == tid) { spin_unlock(&__thread_id_map_mutex); return i; + } } spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n", - (int)tid, (int)tid); + fprintf(stderr, "smp_thread_id: Rogue thread, id: %lu(%#lx)\n", + (unsigned long) tid, (unsigned long) tid); exit(-1); } @@ -257,8 +207,8 @@ static void *wait_thread(thread_id_t tid) break; } if (i >= NR_THREADS){ - fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n", - (int)tid, (int)tid); + fprintf(stderr, "wait_thread: bad tid = %lu(%#lx)\n", + (unsigned long)tid, (unsigned long)tid); exit(-1); } if (pthread_join(tid, &vp) != 0) { @@ -282,12 +232,6 @@ static void wait_all_threads(void) } } -#ifndef HAVE_CPU_SET_T -typedef unsigned long cpu_set_t; -# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0) -# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0) -#endif - static void run_on(int cpu) { #if HAVE_SCHED_SETAFFINITY @@ -337,107 +281,8 @@ long long get_microseconds(void) per_thread(name, __i_p_t_i) = v; \ } while (0) -/* - * CPU traversal primitives. - */ - -#ifndef NR_CPUS -#define NR_CPUS 16 -#endif /* #ifndef NR_CPUS */ - -#define for_each_possible_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) -#define for_each_online_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) - -/* - * Per-CPU variables. - */ - -#define DEFINE_PER_CPU(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ - } __per_cpu_##name[NR_CPUS] -#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name) - DEFINE_PER_THREAD(int, smp_processor_id); -#define per_cpu(name, thread) __per_cpu_##name[thread].v -#define __get_cpu_var(name) per_cpu(name, smp_processor_id()) - -#define init_per_cpu(name, v) \ - do { \ - int __i_p_c_i; \ - for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \ - per_cpu(name, __i_p_c_i) = v; \ - } while (0) - -/* - * CPU state checking (crowbarred). - */ - -#define idle_cpu(cpu) 0 -#define in_softirq() 1 -#define hardirq_count() 0 -#define PREEMPT_SHIFT 0 -#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) -#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) -#define PREEMPT_BITS 8 -#define SOFTIRQ_BITS 8 - -/* - * CPU hotplug. - */ - -struct notifier_block { - int (*notifier_call)(struct notifier_block *, unsigned long, void *); - struct notifier_block *next; - int priority; -}; - -#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ -#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ -#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ -#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ -#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ -#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead */ -#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug - * lock is dropped */ - -/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend - * operation in progress - */ -#define CPU_TASKS_FROZEN 0x0010 - -#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) -#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) -#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) -#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) -#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) -#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) -#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) - -/* Hibernation and suspend events */ -#define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ -#define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ -#define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */ -#define PM_POST_SUSPEND 0x0004 /* Suspend finished */ -#define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */ -#define PM_POST_RESTORE 0x0006 /* Restore failed */ - -#define NOTIFY_DONE 0x0000 /* Don't care */ -#define NOTIFY_OK 0x0001 /* Suits me */ -#define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ -#define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) - /* Bad/Veto action */ -/* - * Clean way to return from the notifier and stop further calls. - */ -#define NOTIFY_STOP (NOTIFY_OK|NOTIFY_STOP_MASK) - /* * Bug checks. */ @@ -463,703 +308,4 @@ static void smp_init(void) } } -/* Taken from the Linux kernel source tree, so GPLv2-only!!! */ - -#ifndef _LINUX_LIST_H -#define _LINUX_LIST_H - -#define LIST_POISON1 ((void *) 0x00100100) -#define LIST_POISON2 ((void *) 0x00200200) - -#if 0 -/* - * 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 cds_list_head { - struct cds_list_head *next, *prev; -}; - -#define CDS_LIST_HEAD_INIT(name) { &(name), &(name) } - -#define CDS_LIST_HEAD(name) \ - struct cds_list_head name = CDS_LIST_HEAD_INIT(name) - -static inline void CDS_INIT_LIST_HEAD(struct cds_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! - */ -#ifndef CONFIG_DEBUG_LIST -static inline void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - next->prev = new; - new->next = next; - new->prev = prev; - prev->next = new; -} -#else -extern void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next); -#endif - -/** - * cds_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 cds_list_add(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_list_add(new, head, head->next); -} - - -/** - * cds_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 cds_list_add_tail(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_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 __cds_list_del(struct cds_list_head * prev, struct cds_list_head * next) -{ - next->prev = prev; - prev->next = next; -} - -/** - * cds_list_del - deletes entry from list. - * @entry: the element to delete from the list. - * Note: cds_list_empty() on entry does not return true after this, the entry is - * in an undefined state. - */ -#ifndef CONFIG_DEBUG_LIST -static inline void cds_list_del(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - entry->next = LIST_POISON1; - entry->prev = LIST_POISON2; -} -#else -extern void cds_list_del(struct cds_list_head *entry); -#endif - -/** - * cds_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 cds_list_replace(struct cds_list_head *old, - struct cds_list_head *new) -{ - new->next = old->next; - new->next->prev = new; - new->prev = old->prev; - new->prev->next = new; -} - -static inline void cds_list_replace_init(struct cds_list_head *old, - struct cds_list_head *new) -{ - cds_list_replace(old, new); - CDS_INIT_LIST_HEAD(old); -} - -/** - * cds_list_del_init - deletes entry from list and reinitialize it. - * @entry: the element to delete from the list. - */ -static inline void cds_list_del_init(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - CDS_INIT_LIST_HEAD(entry); -} - -/** - * cds_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 cds_list_move(struct cds_list_head *list, struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_list_add(list, head); -} - -/** - * cds_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 cds_list_move_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_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 cds_list_head *list, - const struct cds_list_head *head) -{ - return list->next == head; -} - -/** - * cds_list_empty - tests whether a list is empty - * @head: the list to test. - */ -static inline int cds_list_empty(const struct cds_list_head *head) -{ - return head->next == head; -} - -/** - * cds_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 cds_list_empty_careful() without synchronization - * can only be safe if the only activity that can happen - * to the list entry is cds_list_del_init(). Eg. it cannot be used - * if another CPU could re-list_add() it. - */ -static inline int cds_list_empty_careful(const struct cds_list_head *head) -{ - struct cds_list_head *next = head->next; - return (next == head) && (next == head->prev); -} - -/** - * list_is_singular - tests whether a list has just one entry. - * @head: the list to test. - */ -static inline int list_is_singular(const struct cds_list_head *head) -{ - return !list_empty(head) && (head->next == head->prev); -} - -static inline void __list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - struct cds_list_head *new_first = entry->next; - list->next = head->next; - list->next->prev = list; - list->prev = entry; - entry->next = list; - head->next = new_first; - new_first->prev = head; -} - -/** - * list_cut_position - cut a list into two - * @list: a new list to add all removed entries - * @head: a list with entries - * @entry: an entry within head, could be the head itself - * and if so we won't cut the list - * - * This helper moves the initial part of @head, up to and - * including @entry, from @head to @list. You should - * pass on @entry an element you know is on @head. @list - * should be an empty list or a list you do not care about - * losing its data. - * - */ -static inline void list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - if (cds_list_empty(head)) - return; - if (list_is_singular(head) && - (head->next != entry && head != entry)) - return; - if (entry == head) - CDS_INIT_LIST_HEAD(list); - else - __list_cut_position(list, head, entry); -} - -static inline void __cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - struct cds_list_head *first = list->next; - struct cds_list_head *last = list->prev; - - first->prev = prev; - prev->next = first; - - last->next = next; - next->prev = last; -} - -/** - * cds_list_splice - join two lists, this is designed for stacks - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head, head->next); -} - -/** - * cds_list_splice_tail - join two lists, each list being a queue - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head->prev, head); -} - -/** - * cds_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 cds_list_splice_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head, head->next); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_splice_tail_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. - * - * Each of the lists is a queue. - * The list at @list is reinitialised - */ -static inline void cds_list_splice_tail_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head->prev, head); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_entry - get the struct for this entry - * @ptr: the &struct cds_list_head pointer. - * @type: the type of the struct this is embedded in. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_entry(ptr, type, member) \ - caa_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) \ - cds_list_entry((ptr)->next, type, member) - -/** - * cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each(pos, head) \ - for (pos = (head)->next; prefetch(pos->next), pos != (head); \ - pos = pos->next) - -/** - * __cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - * - * This variant differs from cds_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 __cds_list_for_each(pos, head) \ - for (pos = (head)->next; pos != (head); pos = pos->next) - -/** - * cds_list_for_each_prev - iterate over a list backwards - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each_prev(pos, head) \ - for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \ - pos = pos->prev) - -/** - * cds_list_for_each_safe - iterate over a list safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_safe(pos, n, head) \ - for (pos = (head)->next, n = pos->next; pos != (head); \ - pos = n, n = pos->next) - -/** - * cds_list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_prev_safe(pos, n, head) \ - for (pos = (head)->prev, n = pos->prev; \ - prefetch(pos->prev), pos != (head); \ - pos = n, n = pos->prev) - -/** - * cds_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 cds_list_for_each_entry(pos, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_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 cds_list_for_each_entry_reverse(pos, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * list_prepare_entry - prepare a pos entry for use in cds_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 cds_list_for_each_entry_continue(). - */ -#define list_prepare_entry(pos, head, member) \ - ((pos) ? : cds_list_entry(head, typeof(*pos), member)) - -/** - * cds_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 cds_list_for_each_entry_continue(pos, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_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 cds_list_for_each_entry_continue_reverse(pos, head, member) \ - for (pos = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * cds_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 cds_list_for_each_entry_from(pos, head, member) \ - for (; prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_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 cds_list_for_each_entry_safe(pos, n, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_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 cds_list_for_each_entry_safe_continue(pos, n, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_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 cds_list_for_each_entry_safe_from(pos, n, head, member) \ - for (n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_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 cds_list_for_each_entry_safe_reverse(pos, n, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member), \ - n = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.prev, typeof(*n), member)) - -#endif //0 - -/* - * 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 cds_hlist_head { - struct cds_hlist_node *first; -}; - -struct cds_hlist_node { - struct cds_hlist_node *next, **pprev; -}; - -#define HLIST_HEAD_INIT { .first = NULL } -#define HLIST_HEAD(name) struct cds_hlist_head name = { .first = NULL } -#define CDS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL) -static inline void INIT_HLIST_NODE(struct cds_hlist_node *h) -{ - h->next = NULL; - h->pprev = NULL; -} - -static inline int hlist_unhashed(const struct cds_hlist_node *h) -{ - return !h->pprev; -} - -static inline int hlist_empty(const struct cds_hlist_head *h) -{ - return !h->first; -} - -static inline void __cds_hlist_del(struct cds_hlist_node *n) -{ - struct cds_hlist_node *next = n->next; - struct cds_hlist_node **pprev = n->pprev; - *pprev = next; - if (next) - next->pprev = pprev; -} - -static inline void cds_hlist_del(struct cds_hlist_node *n) -{ - __cds_hlist_del(n); - n->next = LIST_POISON1; - n->pprev = LIST_POISON2; -} - -static inline void cds_hlist_del_init(struct cds_hlist_node *n) -{ - if (!hlist_unhashed(n)) { - __cds_hlist_del(n); - INIT_HLIST_NODE(n); - } -} - -static inline void cds_hlist_add_head(struct cds_hlist_node *n, struct cds_hlist_head *h) -{ - struct cds_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 cds_hlist_node *n, - struct cds_hlist_node *next) -{ - n->pprev = next->pprev; - n->next = next; - next->pprev = &n->next; - *(n->pprev) = n; -} - -static inline void hlist_add_after(struct cds_hlist_node *n, - struct cds_hlist_node *next) -{ - next->next = n->next; - n->next = next; - next->pprev = &n->next; - - if(next->next) - next->next->pprev = &next->next; -} - -/* - * Move a list from one list head to another. Fixup the pprev - * reference of the first entry if it exists. - */ -static inline void hlist_move_list(struct cds_hlist_head *old, - struct cds_hlist_head *new) -{ - new->first = old->first; - if (new->first) - new->first->pprev = &new->first; - old->first = NULL; -} - -#define cds_hlist_entry(ptr, type, member) caa_container_of(ptr,type,member) - -#define cds_hlist_for_each(pos, head) \ - for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \ - pos = pos->next) - -#define cds_hlist_for_each_safe(pos, n, head) \ - for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \ - pos = n) - -/** - * cds_hlist_for_each_entry - iterate over list of given type - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry(tpos, pos, head, member) \ - for (pos = (head)->first; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_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 cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_continue(tpos, pos, member) \ - for (pos = (pos)->next; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_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 cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_from(tpos, pos, member) \ - for (; pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_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 cds_hlist_node to use as a loop cursor. - * @n: another &struct cds_hlist_node to use as temporary storage - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_safe(tpos, pos, n, head, member) \ - for (pos = (head)->first; \ - pos && ({ n = pos->next; 1; }) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = n) - -#endif - #endif