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
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonValue.h>
#include <LibCore/CFile.h>
#include <LibCore/CProcessStatisticsReader.h>
#include <pwd.h>
#include <stdio.h>
HashMap<uid_t, String> CProcessStatisticsReader::s_usernames;
HashMap<pid_t, CProcessStatistics> CProcessStatisticsReader::get_all()
{
auto file = CFile::construct("/proc/all");
if (!file->open(CIODevice::ReadOnly)) {
fprintf(stderr, "CProcessStatisticsReader: Failed to open /proc/all: %s\n", file->error_string());
return {};
}
HashMap<pid_t, CProcessStatistics> map;
auto file_contents = file->read_all();
auto json = JsonValue::from_string({ file_contents.data(), (size_t)file_contents.size() });
json.as_array().for_each([&](auto& value) {
const JsonObject& process_object = value.as_object();
CProcessStatistics process;
// kernel data first
process.pid = process_object.get("pid").to_u32();
process.pgid = process_object.get("pgid").to_u32();
process.pgp = process_object.get("pgp").to_u32();
process.sid = process_object.get("sid").to_u32();
process.uid = process_object.get("uid").to_u32();
process.gid = process_object.get("gid").to_u32();
process.ppid = process_object.get("ppid").to_u32();
process.nfds = process_object.get("nfds").to_u32();
process.name = process_object.get("name").to_string();
process.tty = process_object.get("tty").to_string();
process.pledge = process_object.get("pledge").to_string();
process.amount_virtual = process_object.get("amount_virtual").to_u32();
process.amount_resident = process_object.get("amount_resident").to_u32();
process.amount_shared = process_object.get("amount_shared").to_u32();
process.amount_dirty_private = process_object.get("amount_dirty_private").to_u32();
process.amount_clean_inode = process_object.get("amount_clean_inode").to_u32();
process.amount_purgeable_volatile = process_object.get("amount_purgeable_volatile").to_u32();
process.amount_purgeable_nonvolatile = process_object.get("amount_purgeable_nonvolatile").to_u32();
process.icon_id = process_object.get("icon_id").to_int();
auto& thread_array = process_object.get_ptr("threads")->as_array();
process.threads.ensure_capacity(thread_array.size());
thread_array.for_each([&](auto& value) {
auto& thread_object = value.as_object();
CThreadStatistics thread;
thread.tid = thread_object.get("tid").to_u32();
thread.times_scheduled = thread_object.get("times_scheduled").to_u32();
thread.name = thread_object.get("name").to_string();
thread.state = thread_object.get("state").to_string();
thread.ticks = thread_object.get("ticks").to_u32();
thread.priority = thread_object.get("priority").to_u32();
thread.effective_priority = thread_object.get("effective_priority").to_u32();
thread.syscall_count = thread_object.get("syscall_count").to_u32();
thread.inode_faults = thread_object.get("inode_faults").to_u32();
thread.zero_faults = thread_object.get("zero_faults").to_u32();
thread.cow_faults = thread_object.get("cow_faults").to_u32();
thread.unix_socket_read_bytes = thread_object.get("unix_socket_read_bytes").to_u32();
thread.unix_socket_write_bytes = thread_object.get("unix_socket_write_bytes").to_u32();
thread.ipv4_socket_read_bytes = thread_object.get("ipv4_socket_read_bytes").to_u32();
thread.ipv4_socket_write_bytes = thread_object.get("ipv4_socket_write_bytes").to_u32();
thread.file_read_bytes = thread_object.get("file_read_bytes").to_u32();
thread.file_write_bytes = thread_object.get("file_write_bytes").to_u32();
process.threads.append(move(thread));
});
// and synthetic data last
process.username = username_from_uid(process.uid);
map.set(process.pid, process);
});
return map;
}
String CProcessStatisticsReader::username_from_uid(uid_t uid)
{
if (s_usernames.is_empty()) {
setpwent();
while (auto* passwd = getpwent())
s_usernames.set(passwd->pw_uid, passwd->pw_name);
endpwent();
}
auto it = s_usernames.find(uid);
if (it != s_usernames.end())
return (*it).value;
return String::number(uid);
}
|
