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
136
137
138
139
140
141
142
143
144
145
146
147
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIThreadManager.h"
#include "nsCOMPtr.h"
#include "nsIThread.h"
#include "nsXPCOM.h"
#include "nsThreadUtils.h"
#include "nsServiceManagerUtils.h"
#include "mozilla/Atomics.h"
#include "gtest/gtest.h"
#include "mozilla/gtest/MozAssertions.h"
using mozilla::Atomic;
using mozilla::Runnable;
class WaitCondition final : public nsINestedEventLoopCondition {
public:
NS_DECL_THREADSAFE_ISUPPORTS
WaitCondition(Atomic<uint32_t>& aCounter, uint32_t aMaxCount)
: mCounter(aCounter), mMaxCount(aMaxCount) {}
NS_IMETHODIMP IsDone(bool* aDone) override {
*aDone = (mCounter == mMaxCount);
return NS_OK;
}
private:
~WaitCondition() = default;
Atomic<uint32_t>& mCounter;
const uint32_t mMaxCount;
};
NS_IMPL_ISUPPORTS(WaitCondition, nsINestedEventLoopCondition)
class SpinRunnable final : public Runnable {
public:
explicit SpinRunnable(nsINestedEventLoopCondition* aCondition)
: Runnable("SpinRunnable"), mCondition(aCondition), mResult(NS_OK) {}
NS_IMETHODIMP Run() {
nsCOMPtr<nsIThreadManager> threadMan =
do_GetService("@mozilla.org/thread-manager;1");
mResult = threadMan->SpinEventLoopUntil(
"xpcom:TestThreadManager.cpp:SpinRunnable->Run()"_ns, mCondition);
return NS_OK;
}
nsresult SpinLoopResult() { return mResult; }
private:
~SpinRunnable() = default;
nsCOMPtr<nsINestedEventLoopCondition> mCondition;
Atomic<nsresult> mResult;
};
class CountRunnable final : public Runnable {
public:
explicit CountRunnable(Atomic<uint32_t>& aCounter)
: Runnable("CountRunnable"), mCounter(aCounter) {}
NS_IMETHODIMP Run() {
mCounter++;
return NS_OK;
}
private:
Atomic<uint32_t>& mCounter;
};
TEST(ThreadManager, SpinEventLoopUntilSuccess)
{
const uint32_t kRunnablesToDispatch = 100;
nsresult rv;
mozilla::Atomic<uint32_t> count(0);
nsCOMPtr<nsINestedEventLoopCondition> condition =
new WaitCondition(count, kRunnablesToDispatch);
RefPtr<SpinRunnable> spinner = new SpinRunnable(condition);
nsCOMPtr<nsIThread> thread;
rv = NS_NewNamedThread("SpinEventLoop", getter_AddRefs(thread), spinner);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsIRunnable> counter = new CountRunnable(count);
for (uint32_t i = 0; i < kRunnablesToDispatch; ++i) {
rv = thread->Dispatch(counter, NS_DISPATCH_NORMAL);
ASSERT_NS_SUCCEEDED(rv);
}
rv = thread->Shutdown();
ASSERT_NS_SUCCEEDED(rv);
ASSERT_NS_SUCCEEDED(spinner->SpinLoopResult());
}
class ErrorCondition final : public nsINestedEventLoopCondition {
public:
NS_DECL_THREADSAFE_ISUPPORTS
ErrorCondition(Atomic<uint32_t>& aCounter, uint32_t aMaxCount)
: mCounter(aCounter), mMaxCount(aMaxCount) {}
NS_IMETHODIMP IsDone(bool* aDone) override {
if (mCounter == mMaxCount) {
return NS_ERROR_ILLEGAL_VALUE;
}
return NS_OK;
}
private:
~ErrorCondition() = default;
Atomic<uint32_t>& mCounter;
const uint32_t mMaxCount;
};
NS_IMPL_ISUPPORTS(ErrorCondition, nsINestedEventLoopCondition)
TEST(ThreadManager, SpinEventLoopUntilError)
{
const uint32_t kRunnablesToDispatch = 100;
nsresult rv;
mozilla::Atomic<uint32_t> count(0);
nsCOMPtr<nsINestedEventLoopCondition> condition =
new ErrorCondition(count, kRunnablesToDispatch);
RefPtr<SpinRunnable> spinner = new SpinRunnable(condition);
nsCOMPtr<nsIThread> thread;
rv = NS_NewNamedThread("SpinEventLoop", getter_AddRefs(thread), spinner);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsIRunnable> counter = new CountRunnable(count);
for (uint32_t i = 0; i < kRunnablesToDispatch; ++i) {
rv = thread->Dispatch(counter, NS_DISPATCH_NORMAL);
ASSERT_NS_SUCCEEDED(rv);
}
rv = thread->Shutdown();
ASSERT_NS_SUCCEEDED(rv);
ASSERT_NS_FAILED(spinner->SpinLoopResult());
}
|
