1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
//========- unittests/Support/ThreadPools.cpp - ThreadPools.h tests --========//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/ThreadPool.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/TargetSelect.h"
#include "gtest/gtest.h"
using namespace llvm;
// Fixture for the unittests, allowing to *temporarily* disable the unittests
// on a particular platform
class ThreadPoolTest : public testing::Test {
Triple Host;
SmallVector<Triple::ArchType, 4> UnsupportedArchs;
SmallVector<Triple::OSType, 4> UnsupportedOSs;
SmallVector<Triple::EnvironmentType, 1> UnsupportedEnvironments;
protected:
// This is intended for platform as a temporary "XFAIL"
bool isUnsupportedOSOrEnvironment() {
Triple Host(Triple::normalize(sys::getProcessTriple()));
if (std::find(UnsupportedEnvironments.begin(), UnsupportedEnvironments.end(),
Host.getEnvironment()) != UnsupportedEnvironments.end())
return true;
if (std::find(UnsupportedOSs.begin(), UnsupportedOSs.end(), Host.getOS())
!= UnsupportedOSs.end())
return true;
if (std::find(UnsupportedArchs.begin(), UnsupportedArchs.end(), Host.getArch())
!= UnsupportedArchs.end())
return true;
return false;
}
ThreadPoolTest() {
// Add unsupported configuration here, example:
// UnsupportedArchs.push_back(Triple::x86_64);
// See https://llvm.org/bugs/show_bug.cgi?id=25829
UnsupportedArchs.push_back(Triple::ppc64le);
UnsupportedArchs.push_back(Triple::ppc64);
}
};
#define CHECK_UNSUPPORTED() \
do { \
if (isUnsupportedOSOrEnvironment()) \
return; \
} while (0); \
TEST_F(ThreadPoolTest, AsyncBarrier) {
CHECK_UNSUPPORTED();
// test that async & barrier work together properly.
std::atomic_int checked_in{0};
ThreadPool Pool;
for (size_t i = 0; i < 5; ++i) {
Pool.async([&checked_in, i] {
++checked_in;
});
}
Pool.wait();
ASSERT_EQ(5, checked_in);
}
static void TestFunc(std::atomic_int &checked_in, int i) { checked_in += i; }
TEST_F(ThreadPoolTest, AsyncBarrierArgs) {
CHECK_UNSUPPORTED();
// Test that async works with a function requiring multiple parameters.
std::atomic_int checked_in{0};
ThreadPool Pool;
for (size_t i = 0; i < 5; ++i) {
Pool.async(TestFunc, std::ref(checked_in), i);
}
Pool.wait();
ASSERT_EQ(10, checked_in);
}
TEST_F(ThreadPoolTest, Async) {
CHECK_UNSUPPORTED();
ThreadPool Pool;
std::atomic_int i{0};
Pool.async([&i] {
++i;
});
Pool.async([&i] { ++i; });
Pool.wait();
ASSERT_EQ(2, i.load());
}
TEST_F(ThreadPoolTest, GetFuture) {
CHECK_UNSUPPORTED();
ThreadPool Pool;
std::atomic_int i{0};
Pool.async([&i] {
++i;
});
// Force the future using get()
Pool.async([&i] { ++i; }).get();
Pool.wait();
ASSERT_EQ(2, i.load());
}
TEST_F(ThreadPoolTest, PoolDestruction) {
CHECK_UNSUPPORTED();
// Test that we are waiting on destruction
std::atomic_int checked_in{0};
{
ThreadPool Pool;
for (size_t i = 0; i < 5; ++i) {
Pool.async([&checked_in, i] {
++checked_in;
});
}
}
ASSERT_EQ(5, checked_in);
}
|
