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
|
//===-- MainLoopTest.cpp ----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Host/MainLoop.h"
#include "lldb/Host/ConnectionFileDescriptor.h"
#include "lldb/Host/PseudoTerminal.h"
#include "lldb/Host/common/TCPSocket.h"
#include "gtest/gtest.h"
#include <future>
using namespace lldb_private;
namespace {
class MainLoopTest : public testing::Test {
public:
static void SetUpTestCase() {
#ifdef _MSC_VER
WSADATA data;
ASSERT_EQ(0, WSAStartup(MAKEWORD(2, 2), &data));
#endif
}
static void TearDownTestCase() {
#ifdef _MSC_VER
ASSERT_EQ(0, WSACleanup());
#endif
}
void SetUp() override {
bool child_processes_inherit = false;
Status error;
std::unique_ptr<TCPSocket> listen_socket_up(
new TCPSocket(true, child_processes_inherit));
ASSERT_TRUE(error.Success());
error = listen_socket_up->Listen("localhost:0", 5);
ASSERT_TRUE(error.Success());
Socket *accept_socket;
std::future<Status> accept_error = std::async(std::launch::async, [&] {
return listen_socket_up->Accept(accept_socket);
});
std::unique_ptr<TCPSocket> connect_socket_up(
new TCPSocket(true, child_processes_inherit));
error = connect_socket_up->Connect(
llvm::formatv("localhost:{0}", listen_socket_up->GetLocalPortNumber())
.str());
ASSERT_TRUE(error.Success());
ASSERT_TRUE(accept_error.get().Success());
callback_count = 0;
socketpair[0] = std::move(connect_socket_up);
socketpair[1].reset(accept_socket);
}
void TearDown() override {
socketpair[0].reset();
socketpair[1].reset();
}
protected:
MainLoop::Callback make_callback() {
return [&](MainLoopBase &loop) {
++callback_count;
loop.RequestTermination();
};
}
std::shared_ptr<Socket> socketpair[2];
unsigned callback_count;
};
} // namespace
TEST_F(MainLoopTest, ReadObject) {
char X = 'X';
size_t len = sizeof(X);
ASSERT_TRUE(socketpair[0]->Write(&X, len).Success());
MainLoop loop;
Status error;
auto handle = loop.RegisterReadObject(socketpair[1], make_callback(), error);
ASSERT_TRUE(error.Success());
ASSERT_TRUE(handle);
ASSERT_TRUE(loop.Run().Success());
ASSERT_EQ(1u, callback_count);
}
TEST_F(MainLoopTest, TerminatesImmediately) {
char X = 'X';
size_t len = sizeof(X);
ASSERT_TRUE(socketpair[0]->Write(&X, len).Success());
ASSERT_TRUE(socketpair[1]->Write(&X, len).Success());
MainLoop loop;
Status error;
auto handle0 = loop.RegisterReadObject(socketpair[0], make_callback(), error);
ASSERT_TRUE(error.Success());
auto handle1 = loop.RegisterReadObject(socketpair[1], make_callback(), error);
ASSERT_TRUE(error.Success());
ASSERT_TRUE(loop.Run().Success());
ASSERT_EQ(1u, callback_count);
}
#ifdef LLVM_ON_UNIX
TEST_F(MainLoopTest, DetectsEOF) {
PseudoTerminal term;
ASSERT_TRUE(term.OpenFirstAvailableMaster(O_RDWR, nullptr, 0));
ASSERT_TRUE(term.OpenSlave(O_RDWR | O_NOCTTY, nullptr, 0));
auto conn = llvm::make_unique<ConnectionFileDescriptor>(
term.ReleaseMasterFileDescriptor(), true);
Status error;
MainLoop loop;
auto handle =
loop.RegisterReadObject(conn->GetReadObject(), make_callback(), error);
ASSERT_TRUE(error.Success());
term.CloseSlaveFileDescriptor();
ASSERT_TRUE(loop.Run().Success());
ASSERT_EQ(1u, callback_count);
}
TEST_F(MainLoopTest, Signal) {
MainLoop loop;
Status error;
auto handle = loop.RegisterSignal(SIGUSR1, make_callback(), error);
ASSERT_TRUE(error.Success());
kill(getpid(), SIGUSR1);
ASSERT_TRUE(loop.Run().Success());
ASSERT_EQ(1u, callback_count);
}
#endif
|
