+++ /dev/null
-#ifndef _TEST_URCU_HASH_H
-#define _TEST_URCU_HASH_H
-
-/*
- * test_urcu_hash.h
- *
- * Userspace RCU library - test program
- *
- * Copyright 2009-2012 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "../config.h"
-#include <stdio.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <assert.h>
-#include <errno.h>
-#include <signal.h>
-
-#include <urcu/tls-compat.h>
-#include "cpuset.h"
-#include "thread-id.h"
-
-#define DEFAULT_HASH_SIZE 32
-#define DEFAULT_MIN_ALLOC_SIZE 1
-#define DEFAULT_RAND_POOL 1000000
-
-/*
- * Note: the hash seed should be a random value for hash tables
- * targeting production environments to provide protection against
- * denial of service attacks. We keep it a static value within this test
- * program to compare identical benchmark runs.
- */
-#define TEST_HASH_SEED 0x42UL
-
-/* hardcoded number of CPUs */
-#define NR_CPUS 16384
-
-#ifdef POISON_FREE
-#define poison_free(ptr) \
- do { \
- memset(ptr, 0x42, sizeof(*(ptr))); \
- free(ptr); \
- } while (0)
-#else
-#define poison_free(ptr) free(ptr)
-#endif
-
-#ifndef DYNAMIC_LINK_TEST
-#define _LGPL_SOURCE
-#else
-#define debug_yield_read()
-#endif
-#include <urcu-qsbr.h>
-#include <urcu/rculfhash.h>
-#include <urcu-call-rcu.h>
-
-struct wr_count {
- unsigned long update_ops;
- unsigned long add;
- unsigned long add_exist;
- unsigned long remove;
-};
-
-extern DECLARE_URCU_TLS(unsigned int, rand_lookup);
-extern DECLARE_URCU_TLS(unsigned long, nr_add);
-extern DECLARE_URCU_TLS(unsigned long, nr_addexist);
-extern DECLARE_URCU_TLS(unsigned long, nr_del);
-extern DECLARE_URCU_TLS(unsigned long, nr_delnoent);
-extern DECLARE_URCU_TLS(unsigned long, lookup_fail);
-extern DECLARE_URCU_TLS(unsigned long, lookup_ok);
-
-extern struct cds_lfht *test_ht;
-
-struct test_data {
- int a;
- int b;
-};
-
-struct lfht_test_node {
- struct cds_lfht_node node;
- void *key;
- unsigned int key_len;
- /* cache-cold for iteration */
- struct rcu_head head;
-};
-
-static inline struct lfht_test_node *
-to_test_node(struct cds_lfht_node *node)
-{
- return caa_container_of(node, struct lfht_test_node, node);
-}
-
-static inline
-void lfht_test_node_init(struct lfht_test_node *node, void *key,
- size_t key_len)
-{
- cds_lfht_node_init(&node->node);
- node->key = key;
- node->key_len = key_len;
-}
-
-static inline struct lfht_test_node *
-cds_lfht_iter_get_test_node(struct cds_lfht_iter *iter)
-{
- return to_test_node(cds_lfht_iter_get_node(iter));
-}
-
-extern volatile int test_go, test_stop;
-
-extern unsigned long wdelay;
-
-extern unsigned long duration;
-
-/* read-side C.S. duration, in loops */
-extern unsigned long rduration;
-
-extern unsigned long init_hash_size;
-extern unsigned long min_hash_alloc_size;
-extern unsigned long max_hash_buckets_size;
-extern unsigned long init_populate;
-extern int opt_auto_resize;
-extern int add_only, add_unique, add_replace;
-extern const struct cds_lfht_mm_type *memory_backend;
-
-extern unsigned long init_pool_offset, lookup_pool_offset, write_pool_offset;
-extern unsigned long init_pool_size,
- lookup_pool_size,
- write_pool_size;
-extern int validate_lookup;
-
-extern unsigned long nr_hash_chains;
-
-extern int count_pipe[2];
-
-static inline void loop_sleep(unsigned long loops)
-{
- while (loops-- != 0)
- caa_cpu_relax();
-}
-
-extern int verbose_mode;
-
-#define printf_verbose(fmt, args...) \
- do { \
- if (verbose_mode) \
- printf(fmt, ## args); \
- } while (0)
-
-extern unsigned int cpu_affinities[NR_CPUS];
-extern unsigned int next_aff;
-extern int use_affinity;
-
-extern pthread_mutex_t affinity_mutex;
-
-void set_affinity(void);
-
-/*
- * returns 0 if test should end.
- */
-static inline int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static inline int test_duration_read(void)
-{
- return !test_stop;
-}
-
-extern DECLARE_URCU_TLS(unsigned long long, nr_writes);
-extern DECLARE_URCU_TLS(unsigned long long, nr_reads);
-
-extern unsigned int nr_readers;
-extern unsigned int nr_writers;
-
-void rcu_copy_mutex_lock(void);
-void rcu_copy_mutex_unlock(void);
-
-/*
- * Hash function
- * Source: http://burtleburtle.net/bob/c/lookup3.c
- * Originally Public Domain
- */
-
-#define rot(x, k) (((x) << (k)) | ((x) >> (32 - (k))))
-
-#define mix(a, b, c) \
-do { \
- a -= c; a ^= rot(c, 4); c += b; \
- b -= a; b ^= rot(a, 6); a += c; \
- c -= b; c ^= rot(b, 8); b += a; \
- a -= c; a ^= rot(c, 16); c += b; \
- b -= a; b ^= rot(a, 19); a += c; \
- c -= b; c ^= rot(b, 4); b += a; \
-} while (0)
-
-#define final(a, b, c) \
-{ \
- c ^= b; c -= rot(b, 14); \
- a ^= c; a -= rot(c, 11); \
- b ^= a; b -= rot(a, 25); \
- c ^= b; c -= rot(b, 16); \
- a ^= c; a -= rot(c, 4);\
- b ^= a; b -= rot(a, 14); \
- c ^= b; c -= rot(b, 24); \
-}
-
-static inline __attribute__((unused))
-uint32_t hash_u32(
- const uint32_t *k, /* the key, an array of uint32_t values */
- size_t length, /* the length of the key, in uint32_ts */
- uint32_t initval) /* the previous hash, or an arbitrary value */
-{
- uint32_t a, b, c;
-
- /* Set up the internal state */
- a = b = c = 0xdeadbeef + (((uint32_t) length) << 2) + initval;
-
- /*----------------------------------------- handle most of the key */
- while (length > 3) {
- a += k[0];
- b += k[1];
- c += k[2];
- mix(a, b, c);
- length -= 3;
- k += 3;
- }
-
- /*----------------------------------- handle the last 3 uint32_t's */
- switch (length) { /* all the case statements fall through */
- case 3: c += k[2];
- case 2: b += k[1];
- case 1: a += k[0];
- final(a, b, c);
- case 0: /* case 0: nothing left to add */
- break;
- }
- /*---------------------------------------------- report the result */
- return c;
-}
-
-static inline
-void hashword2(
- const uint32_t *k, /* the key, an array of uint32_t values */
- size_t length, /* the length of the key, in uint32_ts */
- uint32_t *pc, /* IN: seed OUT: primary hash value */
- uint32_t *pb) /* IN: more seed OUT: secondary hash value */
-{
- uint32_t a, b, c;
-
- /* Set up the internal state */
- a = b = c = 0xdeadbeef + ((uint32_t) (length << 2)) + *pc;
- c += *pb;
-
- /*----------------------------------------- handle most of the key */
- while (length > 3) {
- a += k[0];
- b += k[1];
- c += k[2];
- mix(a, b, c);
- length -= 3;
- k += 3;
- }
-
- /*----------------------------------- handle the last 3 uint32_t's */
- switch (length) { /* all the case statements fall through */
- case 3: c += k[2];
- case 2: b += k[1];
- case 1: a += k[0];
- final(a, b, c);
- case 0: /* case 0: nothing left to add */
- break;
- }
- /*---------------------------------------------- report the result */
- *pc = c;
- *pb = b;
-}
-
-#if (CAA_BITS_PER_LONG == 32)
-static inline
-unsigned long test_hash_mix(const void *_key, size_t length, unsigned long seed)
-{
- unsigned int key = (unsigned int) _key;
-
- assert(length == sizeof(unsigned int));
- return hash_u32(&key, 1, seed);
-}
-#else
-static inline
-unsigned long test_hash_mix(const void *_key, size_t length, unsigned long seed)
-{
- union {
- uint64_t v64;
- uint32_t v32[2];
- } v;
- union {
- uint64_t v64;
- uint32_t v32[2];
- } key;
-
- assert(length == sizeof(unsigned long));
- v.v64 = (uint64_t) seed;
- key.v64 = (uint64_t) _key;
- hashword2(key.v32, 2, &v.v32[0], &v.v32[1]);
- return v.v64;
-}
-#endif
-
-/*
- * Hash function with nr_hash_chains != 0 for testing purpose only!
- * Creates very long hash chains, deteriorating the hash table into a
- * few linked lists, depending on the nr_hash_chains value. The purpose
- * of this test is to check how the hash table behaves with hash chains
- * containing different values, which is a rare case in a normal hash
- * table.
- */
-static inline
-unsigned long test_hash(const void *_key, size_t length,
- unsigned long seed)
-{
- if (nr_hash_chains == 0) {
- return test_hash_mix(_key, length, seed);
- } else {
- unsigned long v;
-
- assert(length == sizeof(unsigned long));
- v = (unsigned long) _key;
- return v % nr_hash_chains;
- }
-}
-
-unsigned long test_compare(const void *key1, size_t key1_len,
- const void *key2, size_t key2_len);
-
-static inline
-int test_match(struct cds_lfht_node *node, const void *key)
-{
- struct lfht_test_node *test_node = to_test_node(node);
-
- return !test_compare(test_node->key, test_node->key_len,
- key, sizeof(unsigned long));
-}
-
-static inline
-void cds_lfht_test_lookup(struct cds_lfht *ht, void *key, size_t key_len,
- struct cds_lfht_iter *iter)
-{
- assert(key_len == sizeof(unsigned long));
-
- cds_lfht_lookup(ht, test_hash(key, key_len, TEST_HASH_SEED),
- test_match, key, iter);
-}
-
-void free_node_cb(struct rcu_head *head);
-
-/* rw test */
-void test_hash_rw_sigusr1_handler(int signo);
-void test_hash_rw_sigusr2_handler(int signo);
-void *test_hash_rw_thr_reader(void *_count);
-void *test_hash_rw_thr_writer(void *_count);
-int test_hash_rw_populate_hash(void);
-
-/* unique test */
-void test_hash_unique_sigusr1_handler(int signo);
-void test_hash_unique_sigusr2_handler(int signo);
-void *test_hash_unique_thr_reader(void *_count);
-void *test_hash_unique_thr_writer(void *_count);
-int test_hash_unique_populate_hash(void);
-
-#endif /* _TEST_URCU_HASH_H */
projects / userspace-rcu.git / blobdiff