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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
* 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 "gtest/gtest.h"
#include "storage_test_harness.h"
#include "mozilla/Atomics.h"
#include "mozilla/SpinEventLoopUntil.h"
class SynchronousConnectionInterruptionTest : public ::testing::Test {
protected:
void SetUp() override {
mConnection =
getDatabase(nullptr, mozIStorageService::CONNECTION_INTERRUPTIBLE);
ASSERT_TRUE(mConnection);
ASSERT_EQ(NS_OK, NS_NewNamedThread("Test Thread", getter_AddRefs(mThread)));
}
void TearDown() override {
// We might close the database connection early in test cases.
mozilla::Unused << mConnection->Close();
ASSERT_EQ(NS_OK, mThread->Shutdown());
}
nsCOMPtr<mozIStorageConnection> mConnection;
nsCOMPtr<nsIThread> mThread;
mozilla::Atomic<nsresult> mRv = mozilla::Atomic<nsresult>(NS_ERROR_FAILURE);
mozilla::Atomic<bool> mDone{false};
};
TEST_F(SynchronousConnectionInterruptionTest,
shouldBeAbleToInterruptInfiniteOperation) {
// Delay is modest because we don't want to get interrupted by
// some unrelated hang or memory guard
const uint32_t delayMs = 500;
ASSERT_EQ(NS_OK, mThread->DelayedDispatch(
NS_NewRunnableFunction("InterruptRunnable",
[this]() {
mRv = mConnection->Interrupt();
mDone = true;
}),
delayMs));
const nsCString infiniteQuery =
"WITH RECURSIVE test(n) "
"AS (VALUES(1) UNION ALL SELECT n + 1 FROM test) "
"SELECT t.n FROM test, test AS t;"_ns;
nsCOMPtr<mozIStorageStatement> stmt;
ASSERT_EQ(NS_OK,
mConnection->CreateStatement(infiniteQuery, getter_AddRefs(stmt)));
ASSERT_EQ(NS_ERROR_ABORT, stmt->Execute());
ASSERT_EQ(NS_OK, stmt->Finalize());
ASSERT_TRUE(mDone);
ASSERT_EQ(NS_OK, mRv);
ASSERT_EQ(NS_OK, mConnection->Close());
}
TEST_F(SynchronousConnectionInterruptionTest, interruptAfterCloseWillFail) {
ASSERT_EQ(NS_OK, mConnection->Close());
ASSERT_EQ(NS_OK, mThread->Dispatch(
NS_NewRunnableFunction("InterruptRunnable", [this]() {
mRv = mConnection->Interrupt();
mDone = true;
})));
ASSERT_TRUE(mozilla::SpinEventLoopUntil("interruptAfterCloseWillFail"_ns,
[this]() -> bool { return mDone; }));
ASSERT_EQ(NS_ERROR_NOT_INITIALIZED, mRv);
ASSERT_EQ(NS_ERROR_NOT_INITIALIZED, mConnection->Close());
}
|
