Line data Source code
1 : // Copyright (c) 2012-2024 Made to Order Software Corp. All Rights Reserved
2 : //
3 : // https://snapwebsites.org/project/eventdispatcher
4 : // contact@m2osw.com
5 : //
6 : // This program is free software; you can redistribute it and/or modify
7 : // it under the terms of the GNU General Public License as published by
8 : // the Free Software Foundation; either version 2 of the License, or
9 : // (at your option) any later version.
10 : //
11 : // This program is distributed in the hope that it will be useful,
12 : // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 : // GNU General Public License for more details.
15 : //
16 : // You should have received a copy of the GNU General Public License along
17 : // with this program; if not, write to the Free Software Foundation, Inc.,
18 : // 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 :
20 : // self
21 : //
22 : #include "catch_main.h"
23 :
24 :
25 : // cppprocess
26 : //
27 : #include <cppprocess/process_info.h>
28 :
29 :
30 : // C
31 : //
32 : #include <sys/resource.h>
33 : #include <sys/times.h>
34 :
35 :
36 : // last include
37 : //
38 : #include <snapdev/poison.h>
39 :
40 :
41 :
42 1 : CATCH_TEST_CASE("Process Info", "[process]")
43 : {
44 1 : CATCH_START_SECTION("check ourselves")
45 : {
46 : // information about ourselves
47 : //
48 1 : cppprocess::process_info info(getpid());
49 :
50 1 : CATCH_REQUIRE(info.get_pid() == getpid());
51 1 : CATCH_REQUIRE(info.get_ppid() == getppid());
52 1 : CATCH_REQUIRE(info.get_pgid() == getpgid(getpid()));
53 :
54 1 : rusage usage;
55 1 : getrusage(RUSAGE_SELF, &usage);
56 :
57 1 : rusage cusage;
58 1 : getrusage(RUSAGE_CHILDREN, &cusage);
59 :
60 1 : tms process_times = {};
61 1 : times(&process_times);
62 :
63 : {
64 1 : char ** args = SNAP_CATCH2_NAMESPACE::g_argv;
65 1 : CATCH_REQUIRE(info.get_name() == "unittest");
66 1 : CATCH_REQUIRE(args[0] == info.get_command());
67 1 : CATCH_REQUIRE(info.get_basename() == "unittest");
68 :
69 1 : int idx = 1;
70 14 : for(; args[idx] != nullptr; ++idx)
71 : {
72 13 : CATCH_REQUIRE(info.get_arg(idx) == args[idx]);
73 : }
74 1 : CATCH_REQUIRE(static_cast<std::size_t>(idx) == info.get_args_size());
75 : }
76 :
77 1 : CATCH_REQUIRE(info.get_state() == cppprocess::process_state_t::PROCESS_STATE_RUNNING);
78 :
79 : {
80 1 : unsigned long long utime(0);
81 1 : unsigned long long stime(0);
82 1 : unsigned long long cutime(0);
83 1 : unsigned long long cstime(0);
84 1 : info.get_times(utime, stime, cutime, cstime);
85 :
86 : //std::cerr << "times -- " << utime
87 : //<< ", " << stime
88 : //<< ", " << cutime
89 : //<< ", " << cstime
90 : //<< "\n";
91 : //std::cerr << "direct times -- " << process_times.tms_utime
92 : //<< ", " << process_times.tms_stime
93 : //<< ", " << process_times.tms_cutime
94 : //<< ", " << process_times.tms_cstime
95 : //<< "\n";
96 :
97 1 : std::int64_t const ut(utime - process_times.tms_utime);
98 1 : CATCH_REQUIRE(labs(ut) <= 2);
99 :
100 1 : std::int64_t const st(stime - process_times.tms_stime);
101 1 : CATCH_REQUIRE(labs(st) <= 2);
102 :
103 1 : std::int64_t const cut(cutime - process_times.tms_cutime);
104 1 : CATCH_REQUIRE(labs(cut) <= 2);
105 :
106 1 : std::int64_t const cst(cstime - process_times.tms_cstime);
107 1 : CATCH_REQUIRE(labs(cst) <= 2);
108 : }
109 :
110 : // info says 20, getpriority() says 0
111 : //CATCH_REQUIRE(info.get_priority() == getpriority(PRIO_PROCESS, 0));
112 1 : CATCH_REQUIRE(info.get_nice() == nice(0));
113 :
114 : {
115 1 : std::uint64_t pf_major(0);
116 1 : std::uint64_t pf_minor(0);
117 1 : info.get_page_faults(pf_major, pf_minor);
118 :
119 : // WARNING
120 : // the following are rather random... as we add more tests
121 : // this can increase
122 : //
123 1 : std::int64_t const maj(pf_major - usage.ru_majflt);
124 1 : CATCH_REQUIRE(labs(maj) < 100);
125 :
126 1 : std::int64_t const min(pf_minor - usage.ru_minflt);
127 1 : CATCH_REQUIRE(labs(min) < 100);
128 : }
129 :
130 : // TODO: see how to use the rusage data to more or less match these
131 1 : CATCH_REQUIRE(info.get_total_size() != 0);
132 1 : CATCH_REQUIRE(info.get_rss_size() != 0);
133 :
134 : {
135 1 : int maj(0);
136 1 : int min(0);
137 1 : info.get_tty(maj, min);
138 : // how do we compare these maj:min with our tty?
139 : }
140 1 : }
141 1 : CATCH_END_SECTION()
142 1 : }
143 :
144 :
145 : // vim: ts=4 sw=4 et
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