1// Copyright 2010 Google Inc.
2// All rights reserved.
3//
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5// modification, are permitted provided that the following conditions are
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13// * Neither the name of Google Inc. nor the names of its contributors
14//   may be used to endorse or promote products derived from this software
15//   without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29#include "utils/signals/programmer.hpp"
30
31extern "C" {
32#include <signal.h>
33#include <unistd.h>
34}
35
36#include <atf-c++.hpp>
37
38#include "utils/sanity.hpp"
39
40namespace signals = utils::signals;
41
42
43namespace {
44
45
46namespace sigchld {
47
48
49static bool happened_1;
50static bool happened_2;
51
52
53void handler_1(const int signo) {
54    PRE(signo == SIGCHLD);
55    happened_1 = true;
56}
57
58
59void handler_2(const int signo) {
60    PRE(signo == SIGCHLD);
61    happened_2 = true;
62}
63
64
65}  // namespace sigchld
66
67
68}  // anonymous namespace
69
70
71ATF_TEST_CASE_WITHOUT_HEAD(program_unprogram);
72ATF_TEST_CASE_BODY(program_unprogram)
73{
74    signals::programmer programmer(SIGCHLD, sigchld::handler_1);
75    sigchld::happened_1 = false;
76    ::kill(::getpid(), SIGCHLD);
77    ATF_REQUIRE(sigchld::happened_1);
78
79    programmer.unprogram();
80    sigchld::happened_1 = false;
81    ::kill(::getpid(), SIGCHLD);
82    ATF_REQUIRE(!sigchld::happened_1);
83}
84
85
86ATF_TEST_CASE_WITHOUT_HEAD(scope);
87ATF_TEST_CASE_BODY(scope)
88{
89    {
90        signals::programmer programmer(SIGCHLD, sigchld::handler_1);
91        sigchld::happened_1 = false;
92        ::kill(::getpid(), SIGCHLD);
93        ATF_REQUIRE(sigchld::happened_1);
94    }
95
96    sigchld::happened_1 = false;
97    ::kill(::getpid(), SIGCHLD);
98    ATF_REQUIRE(!sigchld::happened_1);
99}
100
101
102ATF_TEST_CASE_WITHOUT_HEAD(nested);
103ATF_TEST_CASE_BODY(nested)
104{
105    signals::programmer programmer_1(SIGCHLD, sigchld::handler_1);
106    sigchld::happened_1 = false;
107    sigchld::happened_2 = false;
108    ::kill(::getpid(), SIGCHLD);
109    ATF_REQUIRE(sigchld::happened_1);
110    ATF_REQUIRE(!sigchld::happened_2);
111
112    signals::programmer programmer_2(SIGCHLD, sigchld::handler_2);
113    sigchld::happened_1 = false;
114    sigchld::happened_2 = false;
115    ::kill(::getpid(), SIGCHLD);
116    ATF_REQUIRE(!sigchld::happened_1);
117    ATF_REQUIRE(sigchld::happened_2);
118
119    programmer_2.unprogram();
120    sigchld::happened_1 = false;
121    sigchld::happened_2 = false;
122    ::kill(::getpid(), SIGCHLD);
123    ATF_REQUIRE(sigchld::happened_1);
124    ATF_REQUIRE(!sigchld::happened_2);
125
126    programmer_1.unprogram();
127    sigchld::happened_1 = false;
128    sigchld::happened_2 = false;
129    ::kill(::getpid(), SIGCHLD);
130    ATF_REQUIRE(!sigchld::happened_1);
131    ATF_REQUIRE(!sigchld::happened_2);
132}
133
134
135ATF_INIT_TEST_CASES(tcs)
136{
137    ATF_ADD_TEST_CASE(tcs, program_unprogram);
138    ATF_ADD_TEST_CASE(tcs, scope);
139    ATF_ADD_TEST_CASE(tcs, nested);
140}
141