Mercurial > minori

annotate dep/animia/src/fd/bsd.cc @ 146:d8a61e7e2a36

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
dep/animia: move fd stuff to a new fd.cc, don't force the user to include windows.h
author Paper <mrpapersonic@gmail.com>
date Mon, 13 Nov 2023 13:52:58 -0500
parents e6668085e24d
children aa4df5a84338
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
1 /**
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
2 * fd/bsd.cpp
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
3 * - this ONLY* supports OS X as of now
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
4 * (*there is some FreeBSD support code)
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
5 **/
143
4e750f6545cf dep/animia: don't forget to include this stuff
Paper <mrpapersonic@gmail.com>
parents: 140
diff changeset
6 #include "animia/fd/bsd.h"
4e750f6545cf dep/animia: don't forget to include this stuff
Paper <mrpapersonic@gmail.com>
parents: 140
diff changeset
7
140
1e696863b54c dep/animia: remove superfluous includes
Paper <mrpapersonic@gmail.com>
parents: 139
diff changeset
8 #include <unordered_map>
1e696863b54c dep/animia: remove superfluous includes
Paper <mrpapersonic@gmail.com>
parents: 139
diff changeset
9 #include <vector>
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
10 #include <iostream>
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
11 #include <string>
140
1e696863b54c dep/animia: remove superfluous includes
Paper <mrpapersonic@gmail.com>
parents: 139
diff changeset
12
1e696863b54c dep/animia: remove superfluous includes
Paper <mrpapersonic@gmail.com>
parents: 139
diff changeset
13 #include <fcntl.h>
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
14 #include <sys/sysctl.h>
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
15 #include <sys/types.h>
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
16 #include <sys/user.h>
140
1e696863b54c dep/animia: remove superfluous includes
Paper <mrpapersonic@gmail.com>
parents: 139
diff changeset
17
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
18 #ifdef __FreeBSD__
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
19 # include <libutil.h>
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
20 #elif defined(__APPLE__)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
21 # include <libproc.h>
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
22 #endif
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
23
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
24 namespace animia::internal::unix {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
25
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
26 /* this is a cleaned up version of a function from... Apple?
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
27 ...anyway, what it essentially does is gets the size and stuff from
146
d8a61e7e2a36 dep/animia: move fd stuff to a new fd.cc, don't force the user
Paper <mrpapersonic@gmail.com>
parents: 144
diff changeset
28 sysctl() and reserves the space in a vector to store the PIDs
d8a61e7e2a36 dep/animia: move fd stuff to a new fd.cc, don't force the user
Paper <mrpapersonic@gmail.com>
parents: 144
diff changeset
29
d8a61e7e2a36 dep/animia: move fd stuff to a new fd.cc, don't force the user
Paper <mrpapersonic@gmail.com>
parents: 144
diff changeset
30 TODO: https://kaashif.co.uk/2015/06/18/how-to-get-a-list-of-processes-on-openbsd-in-c/ */
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
31 bool UnixFdTools::GetAllPids(std::set<pid_t>& pids) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
32 struct kinfo_proc* result = NULL;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
33 size_t length = 0;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
34 static const int name[] = {CTL_KERN, KERN_PROC, KERN_PROC_ALL, 0};
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
35
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
36 /* get appropriate length from sysctl()
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
37 note: the reason this isn't checked is actually because this will
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
38 *always* return an error on OS X (or... maybe I'm doing it wrong :) ) */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
39 sysctl((int*)name, (sizeof(name) / sizeof(*name)) - 1, NULL, &length, NULL, 0);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
40
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
41 result = (struct kinfo_proc*)malloc(length);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
42 if (result == NULL)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
43 return std::vector<int>();
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
44
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
45 /* TODO: this might actually return ENOMEM if the amount of file handles changes between the
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
46 original sysctl() call and this one, which is technically possible */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
47 if (sysctl((int*)name, (sizeof(name) / sizeof(*name)) - 1, result, &length, NULL, 0) == ENOMEM) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
48 assert(result != NULL);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
49 free(result);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
50 throw std::bad_alloc();
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
51 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
52
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
53 /* add pids to our vector */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
54 pids.reserve(length / sizeof(*result));
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
55 for (int i = 0; i < length / sizeof(*result); i++)
144
e6668085e24d dep/animia: fix many bugs in the linux code
Paper <mrpapersonic@gmail.com>
parents: 143
diff changeset
56 pids.insert(result[i].kp_proc.p_pid);
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
57 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
58
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
59 bool UnixFdTools::GetProcessName(pid_t pid, std::string& result) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
60 #ifdef __FreeBSD__
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
61 struct kinfo_proc* proc = kinfo_getproc(pid);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
62 if (!proc)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
63 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
64 result = proc->ki_comm;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
65
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
66 /* FreeBSD manpage for kinfo_getproc():
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
67 "The pointer was obtained by an internal call to malloc(3) and
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
68 must be freed by the caller with a call to free(3)." */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
69 free(proc);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
70
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
71 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
72 #elif defined(__APPLE__)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
73 struct proc_bsdinfo proc;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
74
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
75 int st = proc_pidinfo(pid, PROC_PIDTBSDINFO, 0, &proc, PROC_PIDTBSDINFO_SIZE);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
76 if (st != PROC_PIDTBSDINFO_SIZE)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
77 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
78
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
79 /* fixme: is this right? pbi_comm is an alternative, but it reduces the string size to
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
80 16 chars. does pbi_name do the same, or is it different? */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
81 result = proc.pbi_name;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
82 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
83 #endif
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
84 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
85
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
86 /* this only works on OS X :( */
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
87 bool UnixFdTools::EnumerateOpenFiles(const std::set<pid_t>& pids, std::vector<std::tuple<pid_t, std::string>>& files) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
88 for (const auto& pid : pids) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
89 int bufsz = proc_pidinfo(pid, PROC_PIDLISTFDS, 0, NULL, 0);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
90 if (bufsz == -1)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
91 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
92
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
93 struct proc_fdinfo* info = (struct proc_fdinfo*)malloc(bufsz);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
94 if (!info)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
95 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
96
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
97 proc_pidinfo(pid, PROC_PIDLISTFDS, 0, info, bufsz);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
98
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
99 for (int i = 0; i < bufsz / sizeof(info[0]); i++) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
100 if (info[i].proc_fdtype == PROX_FDTYPE_VNODE) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
101 struct vnode_fdinfowithpath vnodeInfo;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
102
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
103 int sz = proc_pidfdinfo(pid, info[i].proc_fd, PROC_PIDFDVNODEPATHINFO, &vnodeInfo, PROC_PIDFDVNODEPATHINFO_SIZE);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
104 if (sz != PROC_PIDFDVNODEPATHINFO_SIZE)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
105 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
106
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
107 /* this doesn't work!
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
108 if (vnodeInfo.pfi.fi_openflags & O_WRONLY || vnodeInfo.pfi.fi_openflags & O_RDWR)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
109 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
110 */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
111
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
112 files.push_back({pid, vnodeInfo.pvip.vip_path});
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
113 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
114 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
115 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
116 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
117 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
118
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
119 } // namespace animia::internal::unix