Mercurial > minori

annotate dep/animia/src/fd/bsd.cc @ 144:e6668085e24d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
dep/animia: fix many bugs in the linux code
author Paper <mrpapersonic@gmail.com>
date Sun, 12 Nov 2023 18:35:49 -0500
parents 4e750f6545cf
children d8a61e7e2a36
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
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
28 sysctl() and reserves the space in a vector to store the PIDs */
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
29 bool UnixFdTools::GetAllPids(std::set<pid_t>& pids) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
30 struct kinfo_proc* result = NULL;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
31 size_t length = 0;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
32 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
33
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
34 /* get appropriate length from sysctl()
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
35 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
36 *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
37 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
38
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
39 result = (struct kinfo_proc*)malloc(length);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
40 if (result == NULL)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
41 return std::vector<int>();
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
42
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
43 /* 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
44 original sysctl() call and this one, which is technically possible */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
45 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
46 assert(result != NULL);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
47 free(result);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
48 throw std::bad_alloc();
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
49 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
50
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
51 /* add pids to our vector */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
52 pids.reserve(length / sizeof(*result));
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
53 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
54 pids.insert(result[i].kp_proc.p_pid);
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
55 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
56
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
57 bool UnixFdTools::GetProcessName(pid_t pid, std::string& result) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
58 #ifdef __FreeBSD__
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
59 struct kinfo_proc* proc = kinfo_getproc(pid);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
60 if (!proc)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
61 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
62 result = proc->ki_comm;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
63
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
64 /* FreeBSD manpage for kinfo_getproc():
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
65 "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
66 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
67 free(proc);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
68
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
69 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
70 #elif defined(__APPLE__)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
71 struct proc_bsdinfo proc;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
72
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
73 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
74 if (st != PROC_PIDTBSDINFO_SIZE)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
75 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
76
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
77 /* 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
78 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
79 result = proc.pbi_name;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
80 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
81 #endif
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
82 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
83
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
84 /* 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
85 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
86 for (const auto& pid : pids) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
87 int bufsz = proc_pidinfo(pid, PROC_PIDLISTFDS, 0, NULL, 0);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
88 if (bufsz == -1)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
89 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
90
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
91 struct proc_fdinfo* info = (struct proc_fdinfo*)malloc(bufsz);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
92 if (!info)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
93 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
94
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
95 proc_pidinfo(pid, PROC_PIDLISTFDS, 0, info, bufsz);
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 for (int i = 0; i < bufsz / sizeof(info[0]); i++) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
98 if (info[i].proc_fdtype == PROX_FDTYPE_VNODE) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
99 struct vnode_fdinfowithpath vnodeInfo;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
100
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
101 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
102 if (sz != PROC_PIDFDVNODEPATHINFO_SIZE)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
103 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
104
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
105 /* this doesn't work!
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
106 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
107 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
108 */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
109
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
110 files.push_back({pid, vnodeInfo.pvip.vip_path});
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 }
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 return true;
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
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
117 } // namespace animia::internal::unix