Mercurial > minori

annotate dep/animone/src/fd/proc.cc @ 337:a7d4e5107531

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
dep/animone: REFACTOR ALL THE THINGS 1: animone now has its own syntax divergent from anisthesia, making different platforms actually have their own sections 2: process names in animone are now called `comm' (this will probably break things). this is what its called in bsd/linux so I'm just going to use it everywhere 3: the X11 code now checks for the existence of a UTF-8 window title and passes it if available 4: ANYTHING THATS NOT LINUX IS 100% UNTESTED AND CAN AND WILL BREAK! I still actually need to test the bsd code. to be honest I'm probably going to move all of the bsds into separate files because they're all essentially different operating systems at this point
author Paper <paper@paper.us.eu.org>
date Wed, 19 Jun 2024 12:51:15 -0400
parents a4257370de16
children f81bed4e04ac
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
310
a4257370de16 dep/animone: prepare for v1.0 release; it should be ready by now
Paper <paper@paper.us.eu.org>
parents: 309
diff changeset
1 /*
a4257370de16 dep/animone: prepare for v1.0 release; it should be ready by now
Paper <paper@paper.us.eu.org>
parents: 309
diff changeset
2 * fd/win32.cc: support for linux's /proc filesystem
a4257370de16 dep/animone: prepare for v1.0 release; it should be ready by now
Paper <paper@paper.us.eu.org>
parents: 309
diff changeset
3 *
a4257370de16 dep/animone: prepare for v1.0 release; it should be ready by now
Paper <paper@paper.us.eu.org>
parents: 309
diff changeset
4 * plan 9 caused this monstrocity...
a4257370de16 dep/animone: prepare for v1.0 release; it should be ready by now
Paper <paper@paper.us.eu.org>
parents: 309
diff changeset
5 */
301
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
6 #include "animone/fd/proc.h"
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
7 #include "animone.h"
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
8 #include "animone/util.h"
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
9
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
10 #include <filesystem>
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
11 #include <fstream>
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
12 #include <sstream>
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
13 #include <string>
309
bf89fbf7ff38 misc: remove copyrighted app icon
Paper <paper@paper.us.eu.org>
parents: 301
diff changeset
14 #include <algorithm>
301
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
15
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
16 #include <fcntl.h>
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
17 #include <sys/stat.h>
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
18 #include <unistd.h>
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
19
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
20 static constexpr std::string_view PROC_LOCATION = "/proc";
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
21
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
22 namespace animone::internal::proc {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
23
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
24 static bool IsRegularFile(std::string link) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
25 struct stat sb;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
26 if (stat(link.c_str(), &sb) == -1)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
27 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
28
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
29 return S_ISREG(sb.st_mode);
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
30 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
31
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
32 static bool AreFlagsOk(pid_t pid, int fd) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
33 const std::filesystem::path path =
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
34 std::filesystem::path(PROC_LOCATION) / std::to_string(pid) / "fdinfo" / std::to_string(fd);
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
35
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
36 std::ifstream file(path);
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
37 if (!file)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
38 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
39
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
40 int flags = 0;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
41 for (std::string line; std::getline(file, line);)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
42 if (line.find("flags:", 0) == 0)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
43 flags = util::StringToInt(line.substr(line.find_last_not_of("0123456789") + 1));
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
44
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
45 /* check if the file was opened in a write mode */
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
46 int accflags = flags & O_ACCMODE;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
47 if (accflags == O_WRONLY || accflags == O_RDWR)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
48 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
49
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
50 return true;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
51 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
52
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
53 static bool GetFilenameFromFd(std::string link, std::string& out) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
54 /* /proc is a "virtual filesystem", so we have to guess the path size. yippee! */
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
55 constexpr size_t OUT_MAX = (1ul << 15); // 32KiB
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
56 out.resize(32);
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
57
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
58 ssize_t exe_used = 0;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
59 do {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
60 out.resize(out.length() * 2);
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
61
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
62 exe_used = readlink(link.c_str(), &out.front(), out.length());
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
63 if (exe_used == (ssize_t)-1 || exe_used < (ssize_t)1)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
64 return false; // we got a bad result. SAD!
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
65 } while (out.length() < OUT_MAX && exe_used >= static_cast<ssize_t>(out.length()));
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
66
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
67 out.resize(out.find('\0'));
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
68
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
69 return true;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
70 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
71
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
72 static bool IsSystemFile(const std::string& path) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
73 static constexpr std::array<std::string_view, 9> invalid_paths = {"/boot", "/dev", "/bin", "/usr", "/opt",
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
74 "/proc", "/var", "/etc", "/dev"};
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
75
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
76 for (const auto& invalid_path : invalid_paths)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
77 if (!path.rfind(invalid_path, 0))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
78 return true;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
79
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
80 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
81 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
82
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
83 bool GetProcessName(pid_t pid, std::string& result) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
84 const std::filesystem::path path = std::filesystem::path(PROC_LOCATION) / std::to_string(pid) / "comm";
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
85
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
86 if (!util::ReadFile(path, result))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
87 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
88
309
bf89fbf7ff38 misc: remove copyrighted app icon
Paper <paper@paper.us.eu.org>
parents: 301
diff changeset
89 result.erase(std::remove(result.begin(), result.end(), '\n'), result.cend());
301
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
90 return true;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
91 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
92
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
93 bool EnumerateOpenProcesses(process_proc_t process_proc) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
94 bool success = false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
95
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
96 for (const auto& dir : std::filesystem::directory_iterator{PROC_LOCATION}) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
97 Process proc;
337
a7d4e5107531 dep/animone: REFACTOR ALL THE THINGS
Paper <paper@paper.us.eu.org>
parents: 310
diff changeset
98 proc.platform = ExecutablePlatform::Posix;
301
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
99
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
100 try {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
101 proc.pid = util::StringToInt(dir.path().stem());
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
102 success = true;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
103 } catch (std::invalid_argument const& ex) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
104 continue;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
105 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
106
337
a7d4e5107531 dep/animone: REFACTOR ALL THE THINGS
Paper <paper@paper.us.eu.org>
parents: 310
diff changeset
107 if (!GetProcessName(proc.pid, proc.comm))
301
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
108 continue;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
109
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
110 if (!process_proc(proc))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
111 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
112 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
113
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
114 return success;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
115 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
116
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
117 bool EnumerateOpenFiles(const std::set<pid_t>& pids, open_file_proc_t open_file_proc) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
118 if (!open_file_proc)
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
119 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
120
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
121 for (const auto& pid : pids) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
122 const std::filesystem::path path = std::filesystem::path(PROC_LOCATION) / std::to_string(pid) / "fd";
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
123
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
124 for (const auto& dir : std::filesystem::directory_iterator{path}) {
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
125 if (!AreFlagsOk(pid, util::StringToInt(dir.path().stem())))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
126 continue;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
127
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
128 std::string name;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
129 if (!GetFilenameFromFd(dir.path(), name))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
130 continue;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
131
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
132 if (!IsRegularFile(name))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
133 continue;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
134
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
135 if (IsSystemFile(name))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
136 continue;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
137
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
138 if (!open_file_proc({pid, name}))
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
139 return false;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
140 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
141 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
142 return true;
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
143 }
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
144
b1f625b0227c *: convert all files CRLF -> LF
Paper <paper@paper.us.eu.org>
parents: 270
diff changeset
145 } // namespace animia::internal::proc