X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=liblttng-ust%2Frculfhash.h;h=902618e54ae760d23c836a323a0398c0f34c6375;hb=a5ae46ccd9f046246765c634237a65ffa79eb4e9;hp=7fa93c1e779b3172b2e744d5cdef124efa9b904b;hpb=d2dd7baae6c00bdf2e08e03161db785f3a5565e4;p=lttng-ust.git diff --git a/liblttng-ust/rculfhash.h b/liblttng-ust/rculfhash.h index 7fa93c1e..902618e5 100644 --- a/liblttng-ust/rculfhash.h +++ b/liblttng-ust/rculfhash.h @@ -1,33 +1,18 @@ -#ifndef _LTTNG_UST_RCULFHASH_H -#define _LTTNG_UST_RCULFHASH_H - /* - * urcu/rculfhash.h - * - * Userspace RCU library - Lock-Free RCU Hash Table - * - * Copyright 2011 - Mathieu Desnoyers - * Copyright 2011 - Lai Jiangshan - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. + * SPDX-License-Identifier: LGPL-2.1-or-later * - * This library 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 - * Lesser General Public License for more details. + * Copyright 2011 Mathieu Desnoyers + * Copyright 2011 Lai Jiangshan * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * Userspace RCU library - Lock-Free RCU Hash Table */ +#ifndef _LTTNG_UST_RCULFHASH_H +#define _LTTNG_UST_RCULFHASH_H + #include #include #include -#include "helper.h" #ifdef __cplusplus extern "C" { @@ -111,11 +96,13 @@ struct lttng_ust_lfht_mm_type { unsigned long index); }; -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern const struct lttng_ust_lfht_mm_type lttng_ust_lfht_mm_order; -LTTNG_HIDDEN + +__attribute__((visibility("hidden"))) extern const struct lttng_ust_lfht_mm_type lttng_ust_lfht_mm_chunk; -LTTNG_HIDDEN + +__attribute__((visibility("hidden"))) extern const struct lttng_ust_lfht_mm_type lttng_ust_lfht_mm_mmap; /* @@ -135,7 +122,7 @@ extern const struct lttng_ust_lfht_mm_type lttng_ust_lfht_mm_mmap; * Return NULL on error. * Note: the RCU flavor must be already included before the hash table header. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern struct lttng_ust_lfht *lttng_ust_lfht_new(unsigned long init_size, unsigned long min_nr_alloc_buckets, unsigned long max_nr_buckets, @@ -159,7 +146,7 @@ extern struct lttng_ust_lfht *lttng_ust_lfht_new(unsigned long init_size, * thread to handle resize operations, which removes RCU requirements on * lttng_ust_lfht_destroy. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern int lttng_ust_lfht_destroy(struct lttng_ust_lfht *ht); /* @@ -172,7 +159,7 @@ extern int lttng_ust_lfht_destroy(struct lttng_ust_lfht *ht); * Call with rcu_read_lock held. * Threads calling this API need to be registered RCU read-side threads. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern void lttng_ust_lfht_count_nodes(struct lttng_ust_lfht *ht, long *split_count_before, unsigned long *count, @@ -190,7 +177,7 @@ extern void lttng_ust_lfht_count_nodes(struct lttng_ust_lfht *ht, * Threads calling this API need to be registered RCU read-side threads. * This function acts as a rcu_dereference() to read the node pointer. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern void lttng_ust_lfht_lookup(struct lttng_ust_lfht *ht, unsigned long hash, lttng_ust_lfht_match_fct match, const void *key, struct lttng_ust_lfht_iter *iter); @@ -215,7 +202,7 @@ extern void lttng_ust_lfht_lookup(struct lttng_ust_lfht *ht, unsigned long hash, * Threads calling this API need to be registered RCU read-side threads. * This function acts as a rcu_dereference() to read the node pointer. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern void lttng_ust_lfht_next_duplicate(struct lttng_ust_lfht *ht, lttng_ust_lfht_match_fct match, const void *key, struct lttng_ust_lfht_iter *iter); @@ -230,7 +217,7 @@ extern void lttng_ust_lfht_next_duplicate(struct lttng_ust_lfht *ht, * Threads calling this API need to be registered RCU read-side threads. * This function acts as a rcu_dereference() to read the node pointer. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern void lttng_ust_lfht_first(struct lttng_ust_lfht *ht, struct lttng_ust_lfht_iter *iter); /* @@ -245,7 +232,7 @@ extern void lttng_ust_lfht_first(struct lttng_ust_lfht *ht, struct lttng_ust_lfh * Threads calling this API need to be registered RCU read-side threads. * This function acts as a rcu_dereference() to read the node pointer. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern void lttng_ust_lfht_next(struct lttng_ust_lfht *ht, struct lttng_ust_lfht_iter *iter); /* @@ -260,7 +247,7 @@ extern void lttng_ust_lfht_next(struct lttng_ust_lfht *ht, struct lttng_ust_lfht * This function issues a full memory barrier before and after its * atomic commit. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern void lttng_ust_lfht_add(struct lttng_ust_lfht *ht, unsigned long hash, struct lttng_ust_lfht_node *node); @@ -291,7 +278,7 @@ extern void lttng_ust_lfht_add(struct lttng_ust_lfht *ht, unsigned long hash, * node pointer. The failure case does not guarantee any other memory * barrier. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern struct lttng_ust_lfht_node *lttng_ust_lfht_add_unique(struct lttng_ust_lfht *ht, unsigned long hash, lttng_ust_lfht_match_fct match, @@ -328,7 +315,7 @@ extern struct lttng_ust_lfht_node *lttng_ust_lfht_add_unique(struct lttng_ust_lf * This function issues a full memory barrier before and after its * atomic commit. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern struct lttng_ust_lfht_node *lttng_ust_lfht_add_replace(struct lttng_ust_lfht *ht, unsigned long hash, lttng_ust_lfht_match_fct match, @@ -364,7 +351,7 @@ extern struct lttng_ust_lfht_node *lttng_ust_lfht_add_replace(struct lttng_ust_l * after its atomic commit. Upon failure, this function does not issue * any memory barrier. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern int lttng_ust_lfht_replace(struct lttng_ust_lfht *ht, struct lttng_ust_lfht_iter *old_iter, unsigned long hash, @@ -393,7 +380,7 @@ extern int lttng_ust_lfht_replace(struct lttng_ust_lfht *ht, * after its atomic commit. Upon failure, this function does not issue * any memory barrier. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern int lttng_ust_lfht_del(struct lttng_ust_lfht *ht, struct lttng_ust_lfht_node *node); /* @@ -409,7 +396,7 @@ extern int lttng_ust_lfht_del(struct lttng_ust_lfht *ht, struct lttng_ust_lfht_n * Threads calling this API need to be registered RCU read-side threads. * This function does not issue any memory barrier. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern int lttng_ust_lfht_is_node_deleted(const struct lttng_ust_lfht_node *node); /* @@ -422,7 +409,7 @@ extern int lttng_ust_lfht_is_node_deleted(const struct lttng_ust_lfht_node *node * lttng_ust_lfht_resize should *not* be called from a RCU read-side critical * section. */ -LTTNG_HIDDEN +__attribute__((visibility("hidden"))) extern void lttng_ust_lfht_resize(struct lttng_ust_lfht *ht, unsigned long new_size); /*