Commit | Line | Data |
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ce29b371 MJ |
1 | // SPDX-FileCopyrightText: 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
2 | // | |
3 | // SPDX-License-Identifier: GPL-2.0-or-later | |
4 | ||
20adf780 | 5 | /* |
20adf780 | 6 | * Userspace RCU library - test program |
20adf780 MD |
7 | */ |
8 | ||
20adf780 MD |
9 | #include "test_urcu_hash.h" |
10 | ||
11 | enum urcu_hash_addremove { | |
12 | AR_RANDOM = 0, | |
13 | AR_ADD = 1, | |
14 | AR_REMOVE = -1, | |
15 | }; /* 1: add, -1 remove, 0: random */ | |
16 | ||
17 | static enum urcu_hash_addremove addremove; /* 1: add, -1 remove, 0: random */ | |
18 | ||
70469b43 | 19 | void test_hash_unique_sigusr1_handler(int signo __attribute__((unused))) |
20adf780 MD |
20 | { |
21 | switch (addremove) { | |
22 | case AR_ADD: | |
23 | printf("Add/Remove: random.\n"); | |
24 | addremove = AR_RANDOM; | |
25 | break; | |
26 | case AR_RANDOM: | |
27 | printf("Add/Remove: remove only.\n"); | |
28 | addremove = AR_REMOVE; | |
29 | break; | |
30 | case AR_REMOVE: | |
31 | printf("Add/Remove: add only.\n"); | |
32 | addremove = AR_ADD; | |
33 | break; | |
34 | } | |
35 | } | |
36 | ||
70469b43 | 37 | void test_hash_unique_sigusr2_handler(int signo __attribute__((unused))) |
20adf780 MD |
38 | { |
39 | char msg[1] = { 0x42 }; | |
40 | ssize_t ret; | |
41 | ||
42 | do { | |
43 | ret = write(count_pipe[1], msg, 1); /* wakeup thread */ | |
44 | } while (ret == -1L && errno == EINTR); | |
45 | } | |
46 | ||
47 | void *test_hash_unique_thr_reader(void *_count) | |
48 | { | |
49 | unsigned long long *count = _count; | |
50 | ||
94df6318 MD |
51 | printf_verbose("thread_begin %s, tid %lu\n", |
52 | "reader", urcu_get_thread_id()); | |
20adf780 | 53 | |
98f483d2 MD |
54 | URCU_TLS(rand_lookup) = urcu_get_thread_id() ^ time(NULL); |
55 | ||
20adf780 MD |
56 | set_affinity(); |
57 | ||
58 | rcu_register_thread(); | |
59 | ||
60 | while (!test_go) | |
61 | { | |
62 | } | |
63 | cmm_smp_mb(); | |
64 | ||
65 | for (;;) { | |
66 | struct lfht_test_node *node; | |
67 | struct cds_lfht_iter iter; | |
68 | /* | |
69 | * iterate on whole table, ensuring that no duplicate is | |
70 | * found. | |
71 | */ | |
72 | rcu_read_lock(); | |
73 | cds_lfht_for_each_entry(test_ht, &iter, node, node) { | |
74 | struct cds_lfht_iter dup_iter; | |
75 | ||
76 | dup_iter = iter; | |
77 | cds_lfht_next_duplicate(test_ht, test_match, | |
78 | node->key, &dup_iter); | |
79 | if (dup_iter.node != NULL) { | |
80 | printf("[ERROR] Duplicate key %p found\n", node->key); | |
81 | } | |
82 | } | |
83 | rcu_read_unlock(); | |
84 | ||
1de4df4b | 85 | rcu_debug_yield_read(); |
20adf780 MD |
86 | if (caa_unlikely(rduration)) |
87 | loop_sleep(rduration); | |
bd252a04 | 88 | URCU_TLS(nr_reads)++; |
20adf780 MD |
89 | if (caa_unlikely(!test_duration_read())) |
90 | break; | |
bd252a04 | 91 | if (caa_unlikely((URCU_TLS(nr_reads) & ((1 << 10) - 1)) == 0)) |
20adf780 MD |
92 | rcu_quiescent_state(); |
93 | } | |
94 | ||
95 | rcu_unregister_thread(); | |
96 | ||
bd252a04 | 97 | *count = URCU_TLS(nr_reads); |
94df6318 MD |
98 | printf_verbose("thread_end %s, tid %lu\n", |
99 | "reader", urcu_get_thread_id()); | |
100 | printf_verbose("read tid : %lu, lookupfail %lu, lookupok %lu\n", | |
101 | urcu_get_thread_id(), URCU_TLS(lookup_fail), | |
bd252a04 | 102 | URCU_TLS(lookup_ok)); |
20adf780 MD |
103 | return ((void*)1); |
104 | ||
105 | } | |
106 | ||
107 | void *test_hash_unique_thr_writer(void *_count) | |
108 | { | |
109 | struct lfht_test_node *node; | |
110 | struct cds_lfht_node *ret_node; | |
111 | struct cds_lfht_iter iter; | |
112 | struct wr_count *count = _count; | |
113 | int ret; | |
114 | int loc_add_unique; | |
115 | ||
94df6318 MD |
116 | printf_verbose("thread_begin %s, tid %lu\n", |
117 | "writer", urcu_get_thread_id()); | |
20adf780 | 118 | |
98f483d2 MD |
119 | URCU_TLS(rand_lookup) = urcu_get_thread_id() ^ time(NULL); |
120 | ||
20adf780 MD |
121 | set_affinity(); |
122 | ||
123 | rcu_register_thread(); | |
124 | ||
125 | while (!test_go) | |
126 | { | |
127 | } | |
128 | cmm_smp_mb(); | |
129 | ||
130 | for (;;) { | |
131 | /* | |
132 | * add unique/add replace with new node key from range. | |
133 | */ | |
134 | if (1 || (addremove == AR_ADD || add_only) | |
bd252a04 | 135 | || (addremove == AR_RANDOM && rand_r(&URCU_TLS(rand_lookup)) & 1)) { |
20adf780 MD |
136 | node = malloc(sizeof(struct lfht_test_node)); |
137 | lfht_test_node_init(node, | |
bd252a04 | 138 | (void *)(((unsigned long) rand_r(&URCU_TLS(rand_lookup)) % write_pool_size) + write_pool_offset), |
20adf780 MD |
139 | sizeof(void *)); |
140 | rcu_read_lock(); | |
bd252a04 | 141 | loc_add_unique = rand_r(&URCU_TLS(rand_lookup)) & 1; |
20adf780 MD |
142 | if (loc_add_unique) { |
143 | ret_node = cds_lfht_add_unique(test_ht, | |
144 | test_hash(node->key, node->key_len, TEST_HASH_SEED), | |
145 | test_match, node->key, &node->node); | |
146 | } else { | |
147 | ret_node = cds_lfht_add_replace(test_ht, | |
148 | test_hash(node->key, node->key_len, TEST_HASH_SEED), | |
149 | test_match, node->key, &node->node); | |
150 | #if 0 //generate an error on purpose | |
151 | cds_lfht_add(test_ht, | |
152 | test_hash(node->key, node->key_len, TEST_HASH_SEED), | |
153 | &node->node); | |
154 | ret_node = NULL; | |
155 | #endif //0 | |
156 | } | |
157 | rcu_read_unlock(); | |
158 | if (loc_add_unique) { | |
159 | if (ret_node != &node->node) { | |
160 | free(node); | |
bd252a04 | 161 | URCU_TLS(nr_addexist)++; |
20adf780 | 162 | } else { |
bd252a04 | 163 | URCU_TLS(nr_add)++; |
20adf780 MD |
164 | } |
165 | } else { | |
166 | if (ret_node) { | |
167 | call_rcu(&to_test_node(ret_node)->head, | |
168 | free_node_cb); | |
bd252a04 | 169 | URCU_TLS(nr_addexist)++; |
20adf780 | 170 | } else { |
bd252a04 | 171 | URCU_TLS(nr_add)++; |
20adf780 MD |
172 | } |
173 | } | |
174 | } else { | |
175 | /* May delete */ | |
176 | rcu_read_lock(); | |
177 | cds_lfht_test_lookup(test_ht, | |
bd252a04 | 178 | (void *)(((unsigned long) rand_r(&URCU_TLS(rand_lookup)) % write_pool_size) + write_pool_offset), |
20adf780 MD |
179 | sizeof(void *), &iter); |
180 | ret = cds_lfht_del(test_ht, cds_lfht_iter_get_node(&iter)); | |
181 | rcu_read_unlock(); | |
182 | if (ret == 0) { | |
183 | node = cds_lfht_iter_get_test_node(&iter); | |
184 | call_rcu(&node->head, free_node_cb); | |
bd252a04 | 185 | URCU_TLS(nr_del)++; |
20adf780 | 186 | } else |
bd252a04 | 187 | URCU_TLS(nr_delnoent)++; |
20adf780 MD |
188 | } |
189 | #if 0 | |
bd252a04 MD |
190 | //if (URCU_TLS(nr_writes) % 100000 == 0) { |
191 | if (URCU_TLS(nr_writes) % 1000 == 0) { | |
20adf780 | 192 | rcu_read_lock(); |
bd252a04 | 193 | if (rand_r(&URCU_TLS(rand_lookup)) & 1) { |
20adf780 MD |
194 | ht_resize(test_ht, 1); |
195 | } else { | |
196 | ht_resize(test_ht, -1); | |
197 | } | |
198 | rcu_read_unlock(); | |
199 | } | |
200 | #endif //0 | |
bd252a04 | 201 | URCU_TLS(nr_writes)++; |
20adf780 MD |
202 | if (caa_unlikely(!test_duration_write())) |
203 | break; | |
204 | if (caa_unlikely(wdelay)) | |
205 | loop_sleep(wdelay); | |
bd252a04 | 206 | if (caa_unlikely((URCU_TLS(nr_writes) & ((1 << 10) - 1)) == 0)) |
20adf780 MD |
207 | rcu_quiescent_state(); |
208 | } | |
209 | ||
210 | rcu_unregister_thread(); | |
211 | ||
94df6318 MD |
212 | printf_verbose("thread_end %s, tid %lu\n", |
213 | "writer", urcu_get_thread_id()); | |
214 | printf_verbose("info tid %lu: nr_add %lu, nr_addexist %lu, nr_del %lu, " | |
215 | "nr_delnoent %lu\n", urcu_get_thread_id(), | |
216 | URCU_TLS(nr_add), | |
217 | URCU_TLS(nr_addexist), | |
218 | URCU_TLS(nr_del), | |
bd252a04 MD |
219 | URCU_TLS(nr_delnoent)); |
220 | count->update_ops = URCU_TLS(nr_writes); | |
221 | count->add = URCU_TLS(nr_add); | |
222 | count->add_exist = URCU_TLS(nr_addexist); | |
223 | count->remove = URCU_TLS(nr_del); | |
20adf780 MD |
224 | return ((void*)2); |
225 | } | |
226 | ||
227 | int test_hash_unique_populate_hash(void) | |
228 | { | |
229 | struct lfht_test_node *node; | |
230 | struct cds_lfht_node *ret_node; | |
231 | ||
232 | printf("Starting uniqueness test.\n"); | |
233 | ||
98f483d2 MD |
234 | URCU_TLS(rand_lookup) = urcu_get_thread_id() ^ time(NULL); |
235 | ||
20adf780 MD |
236 | if (!init_populate) |
237 | return 0; | |
238 | ||
239 | if (init_populate * 10 > init_pool_size) { | |
240 | printf("WARNING: required to populate %lu nodes (-k), but random " | |
241 | "pool is quite small (%lu values) and we are in add_unique (-u) or add_replace (-s) mode. Try with a " | |
242 | "larger random pool (-p option). This may take a while...\n", init_populate, init_pool_size); | |
243 | } | |
244 | ||
bd252a04 | 245 | while (URCU_TLS(nr_add) < init_populate) { |
20adf780 MD |
246 | node = malloc(sizeof(struct lfht_test_node)); |
247 | lfht_test_node_init(node, | |
bd252a04 | 248 | (void *)(((unsigned long) rand_r(&URCU_TLS(rand_lookup)) % init_pool_size) + init_pool_offset), |
20adf780 MD |
249 | sizeof(void *)); |
250 | rcu_read_lock(); | |
251 | ret_node = cds_lfht_add_replace(test_ht, | |
252 | test_hash(node->key, node->key_len, TEST_HASH_SEED), | |
253 | test_match, node->key, &node->node); | |
254 | rcu_read_unlock(); | |
255 | if (ret_node) { | |
256 | call_rcu(&to_test_node(ret_node)->head, free_node_cb); | |
bd252a04 | 257 | URCU_TLS(nr_addexist)++; |
20adf780 | 258 | } else { |
bd252a04 | 259 | URCU_TLS(nr_add)++; |
20adf780 | 260 | } |
bd252a04 | 261 | URCU_TLS(nr_writes)++; |
20adf780 MD |
262 | } |
263 | return 0; | |
264 | } |