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Update compiler-rt to trunk r224034. This brings a number of new
[FreeBSD/FreeBSD.git] / contrib / compiler-rt / lib / tsan / tests / rtl / tsan_posix.cc
1 //===-- tsan_posix.cc -----------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file is a part of ThreadSanitizer (TSan), a race detector.
11 //
12 //===----------------------------------------------------------------------===//
13 #include "tsan_interface.h"
14 #include "tsan_test_util.h"
15 #include "gtest/gtest.h"
16 #include <pthread.h>
17
18 struct thread_key {
19   pthread_key_t key;
20   pthread_mutex_t *mtx;
21   int val;
22   int *cnt;
23   thread_key(pthread_key_t key, pthread_mutex_t *mtx, int val, int *cnt)
24     : key(key)
25     , mtx(mtx)
26     , val(val)
27     , cnt(cnt) {
28   }
29 };
30
31 static void thread_secific_dtor(void *v) {
32   thread_key *k = (thread_key *)v;
33   EXPECT_EQ(pthread_mutex_lock(k->mtx), 0);
34   (*k->cnt)++;
35   __tsan_write4(&k->cnt);
36   EXPECT_EQ(pthread_mutex_unlock(k->mtx), 0);
37   if (k->val == 42) {
38     delete k;
39   } else if (k->val == 43 || k->val == 44) {
40     k->val--;
41     EXPECT_EQ(pthread_setspecific(k->key, k), 0);
42   } else {
43     ASSERT_TRUE(false);
44   }
45 }
46
47 static void *dtors_thread(void *p) {
48   thread_key *k = (thread_key *)p;
49   EXPECT_EQ(pthread_setspecific(k->key, k), 0);
50   return 0;
51 }
52
53 TEST(Posix, ThreadSpecificDtors) {
54   int cnt = 0;
55   pthread_key_t key;
56   EXPECT_EQ(pthread_key_create(&key, thread_secific_dtor), 0);
57   pthread_mutex_t mtx;
58   EXPECT_EQ(pthread_mutex_init(&mtx, 0), 0);
59   pthread_t th[3];
60   thread_key *k[3];
61   k[0] = new thread_key(key, &mtx, 42, &cnt);
62   k[1] = new thread_key(key, &mtx, 43, &cnt);
63   k[2] = new thread_key(key, &mtx, 44, &cnt);
64   EXPECT_EQ(pthread_create(&th[0], 0, dtors_thread, k[0]), 0);
65   EXPECT_EQ(pthread_create(&th[1], 0, dtors_thread, k[1]), 0);
66   EXPECT_EQ(pthread_join(th[0], 0), 0);
67   EXPECT_EQ(pthread_create(&th[2], 0, dtors_thread, k[2]), 0);
68   EXPECT_EQ(pthread_join(th[1], 0), 0);
69   EXPECT_EQ(pthread_join(th[2], 0), 0);
70   EXPECT_EQ(pthread_key_delete(key), 0);
71   EXPECT_EQ(6, cnt);
72 }
73
74 static __thread int local_var;
75
76 static void *local_thread(void *p) {
77   __tsan_write1(&local_var);
78   __tsan_write1(&p);
79   if (p == 0)
80     return 0;
81   const int kThreads = 4;
82   pthread_t th[kThreads];
83   for (int i = 0; i < kThreads; i++)
84     EXPECT_EQ(pthread_create(&th[i], 0, local_thread,
85               (void*)((long)p - 1)), 0);  // NOLINT
86   for (int i = 0; i < kThreads; i++)
87     EXPECT_EQ(pthread_join(th[i], 0), 0);
88   return 0;
89 }
90
91 TEST(Posix, ThreadLocalAccesses) {
92   local_thread((void*)2);
93 }
94
95 struct CondContext {
96   pthread_mutex_t m;
97   pthread_cond_t c;
98   int data;
99 };
100
101 static void *cond_thread(void *p) {
102   CondContext &ctx = *static_cast<CondContext*>(p);
103
104   EXPECT_EQ(pthread_mutex_lock(&ctx.m), 0);
105   EXPECT_EQ(ctx.data, 0);
106   ctx.data = 1;
107   EXPECT_EQ(pthread_cond_signal(&ctx.c), 0);
108   EXPECT_EQ(pthread_mutex_unlock(&ctx.m), 0);
109
110   EXPECT_EQ(pthread_mutex_lock(&ctx.m), 0);
111   while (ctx.data != 2)
112     EXPECT_EQ(pthread_cond_wait(&ctx.c, &ctx.m), 0);
113   EXPECT_EQ(pthread_mutex_unlock(&ctx.m), 0);
114
115   EXPECT_EQ(pthread_mutex_lock(&ctx.m), 0);
116   ctx.data = 3;
117   EXPECT_EQ(pthread_cond_broadcast(&ctx.c), 0);
118   EXPECT_EQ(pthread_mutex_unlock(&ctx.m), 0);
119
120   return 0;
121 }
122
123 TEST(Posix, CondBasic) {
124   CondContext ctx;
125   EXPECT_EQ(pthread_mutex_init(&ctx.m, 0), 0);
126   EXPECT_EQ(pthread_cond_init(&ctx.c, 0), 0);
127   ctx.data = 0;
128   pthread_t th;
129   EXPECT_EQ(pthread_create(&th, 0, cond_thread, &ctx), 0);
130
131   EXPECT_EQ(pthread_mutex_lock(&ctx.m), 0);
132   while (ctx.data != 1)
133     EXPECT_EQ(pthread_cond_wait(&ctx.c, &ctx.m), 0);
134   ctx.data = 2;
135   EXPECT_EQ(pthread_mutex_unlock(&ctx.m), 0);
136   EXPECT_EQ(pthread_cond_broadcast(&ctx.c), 0);
137
138   EXPECT_EQ(pthread_mutex_lock(&ctx.m), 0);
139   while (ctx.data != 3)
140     EXPECT_EQ(pthread_cond_wait(&ctx.c, &ctx.m), 0);
141   EXPECT_EQ(pthread_mutex_unlock(&ctx.m), 0);
142
143   EXPECT_EQ(pthread_join(th, 0), 0);
144   EXPECT_EQ(pthread_cond_destroy(&ctx.c), 0);
145   EXPECT_EQ(pthread_mutex_destroy(&ctx.m), 0);
146 }