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author | 2025-03-09 17:47:56 +0100 | |
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committer | 2025-03-10 01:59:49 +0100 | |
commit | 3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch) | |
tree | f61faa581feaaeaba2542b9f2b8234a590684413 /vendor/github.com/prometheus/procfs/proc.go | |
parent | [chore] update URLs to forked source (diff) | |
download | gotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz |
[chore] remove vendor
Diffstat (limited to 'vendor/github.com/prometheus/procfs/proc.go')
-rw-r--r-- | vendor/github.com/prometheus/procfs/proc.go | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/vendor/github.com/prometheus/procfs/proc.go b/vendor/github.com/prometheus/procfs/proc.go deleted file mode 100644 index 142796368..000000000 --- a/vendor/github.com/prometheus/procfs/proc.go +++ /dev/null @@ -1,338 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package procfs - -import ( - "bytes" - "errors" - "fmt" - "io" - "os" - "strconv" - "strings" - - "github.com/prometheus/procfs/internal/util" -) - -// Proc provides information about a running process. -type Proc struct { - // The process ID. - PID int - - fs FS -} - -// Procs represents a list of Proc structs. -type Procs []Proc - -var ( - ErrFileParse = errors.New("Error Parsing File") - ErrFileRead = errors.New("Error Reading File") - ErrMountPoint = errors.New("Error Accessing Mount point") -) - -func (p Procs) Len() int { return len(p) } -func (p Procs) Swap(i, j int) { p[i], p[j] = p[j], p[i] } -func (p Procs) Less(i, j int) bool { return p[i].PID < p[j].PID } - -// Self returns a process for the current process read via /proc/self. -func Self() (Proc, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil || errors.Unwrap(err) == ErrMountPoint { - return Proc{}, err - } - return fs.Self() -} - -// NewProc returns a process for the given pid under /proc. -func NewProc(pid int) (Proc, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil { - return Proc{}, err - } - return fs.Proc(pid) -} - -// AllProcs returns a list of all currently available processes under /proc. -func AllProcs() (Procs, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil { - return Procs{}, err - } - return fs.AllProcs() -} - -// Self returns a process for the current process. -func (fs FS) Self() (Proc, error) { - p, err := os.Readlink(fs.proc.Path("self")) - if err != nil { - return Proc{}, err - } - pid, err := strconv.Atoi(strings.Replace(p, string(fs.proc), "", -1)) - if err != nil { - return Proc{}, err - } - return fs.Proc(pid) -} - -// NewProc returns a process for the given pid. -// -// Deprecated: Use fs.Proc() instead. -func (fs FS) NewProc(pid int) (Proc, error) { - return fs.Proc(pid) -} - -// Proc returns a process for the given pid. -func (fs FS) Proc(pid int) (Proc, error) { - if _, err := os.Stat(fs.proc.Path(strconv.Itoa(pid))); err != nil { - return Proc{}, err - } - return Proc{PID: pid, fs: fs}, nil -} - -// AllProcs returns a list of all currently available processes. -func (fs FS) AllProcs() (Procs, error) { - d, err := os.Open(fs.proc.Path()) - if err != nil { - return Procs{}, err - } - defer d.Close() - - names, err := d.Readdirnames(-1) - if err != nil { - return Procs{}, fmt.Errorf("%w: Cannot read file: %v: %w", ErrFileRead, names, err) - } - - p := Procs{} - for _, n := range names { - pid, err := strconv.ParseInt(n, 10, 64) - if err != nil { - continue - } - p = append(p, Proc{PID: int(pid), fs: fs}) - } - - return p, nil -} - -// CmdLine returns the command line of a process. -func (p Proc) CmdLine() ([]string, error) { - data, err := util.ReadFileNoStat(p.path("cmdline")) - if err != nil { - return nil, err - } - - if len(data) < 1 { - return []string{}, nil - } - - return strings.Split(string(bytes.TrimRight(data, "\x00")), "\x00"), nil -} - -// Wchan returns the wchan (wait channel) of a process. -func (p Proc) Wchan() (string, error) { - f, err := os.Open(p.path("wchan")) - if err != nil { - return "", err - } - defer f.Close() - - data, err := io.ReadAll(f) - if err != nil { - return "", err - } - - wchan := string(data) - if wchan == "" || wchan == "0" { - return "", nil - } - - return wchan, nil -} - -// Comm returns the command name of a process. -func (p Proc) Comm() (string, error) { - data, err := util.ReadFileNoStat(p.path("comm")) - if err != nil { - return "", err - } - - return strings.TrimSpace(string(data)), nil -} - -// Executable returns the absolute path of the executable command of a process. -func (p Proc) Executable() (string, error) { - exe, err := os.Readlink(p.path("exe")) - if os.IsNotExist(err) { - return "", nil - } - - return exe, err -} - -// Cwd returns the absolute path to the current working directory of the process. -func (p Proc) Cwd() (string, error) { - wd, err := os.Readlink(p.path("cwd")) - if os.IsNotExist(err) { - return "", nil - } - - return wd, err -} - -// RootDir returns the absolute path to the process's root directory (as set by chroot). -func (p Proc) RootDir() (string, error) { - rdir, err := os.Readlink(p.path("root")) - if os.IsNotExist(err) { - return "", nil - } - - return rdir, err -} - -// FileDescriptors returns the currently open file descriptors of a process. -func (p Proc) FileDescriptors() ([]uintptr, error) { - names, err := p.fileDescriptors() - if err != nil { - return nil, err - } - - fds := make([]uintptr, len(names)) - for i, n := range names { - fd, err := strconv.ParseInt(n, 10, 32) - if err != nil { - return nil, fmt.Errorf("%w: Cannot parse line: %v: %w", ErrFileParse, i, err) - } - fds[i] = uintptr(fd) - } - - return fds, nil -} - -// FileDescriptorTargets returns the targets of all file descriptors of a process. -// If a file descriptor is not a symlink to a file (like a socket), that value will be the empty string. -func (p Proc) FileDescriptorTargets() ([]string, error) { - names, err := p.fileDescriptors() - if err != nil { - return nil, err - } - - targets := make([]string, len(names)) - - for i, name := range names { - target, err := os.Readlink(p.path("fd", name)) - if err == nil { - targets[i] = target - } - } - - return targets, nil -} - -// FileDescriptorsLen returns the number of currently open file descriptors of -// a process. -func (p Proc) FileDescriptorsLen() (int, error) { - // Use fast path if available (Linux v6.2): https://github.com/torvalds/linux/commit/f1f1f2569901 - if p.fs.isReal { - stat, err := os.Stat(p.path("fd")) - if err != nil { - return 0, err - } - - size := stat.Size() - if size > 0 { - return int(size), nil - } - } - - fds, err := p.fileDescriptors() - if err != nil { - return 0, err - } - - return len(fds), nil -} - -// MountStats retrieves statistics and configuration for mount points in a -// process's namespace. -func (p Proc) MountStats() ([]*Mount, error) { - f, err := os.Open(p.path("mountstats")) - if err != nil { - return nil, err - } - defer f.Close() - - return parseMountStats(f) -} - -// MountInfo retrieves mount information for mount points in a -// process's namespace. -// It supplies information missing in `/proc/self/mounts` and -// fixes various other problems with that file too. -func (p Proc) MountInfo() ([]*MountInfo, error) { - data, err := util.ReadFileNoStat(p.path("mountinfo")) - if err != nil { - return nil, err - } - return parseMountInfo(data) -} - -func (p Proc) fileDescriptors() ([]string, error) { - d, err := os.Open(p.path("fd")) - if err != nil { - return nil, err - } - defer d.Close() - - names, err := d.Readdirnames(-1) - if err != nil { - return nil, fmt.Errorf("%w: Cannot read file: %v: %w", ErrFileRead, names, err) - } - - return names, nil -} - -func (p Proc) path(pa ...string) string { - return p.fs.proc.Path(append([]string{strconv.Itoa(p.PID)}, pa...)...) -} - -// FileDescriptorsInfo retrieves information about all file descriptors of -// the process. -func (p Proc) FileDescriptorsInfo() (ProcFDInfos, error) { - names, err := p.fileDescriptors() - if err != nil { - return nil, err - } - - var fdinfos ProcFDInfos - - for _, n := range names { - fdinfo, err := p.FDInfo(n) - if err != nil { - continue - } - fdinfos = append(fdinfos, *fdinfo) - } - - return fdinfos, nil -} - -// Schedstat returns task scheduling information for the process. -func (p Proc) Schedstat() (ProcSchedstat, error) { - contents, err := os.ReadFile(p.path("schedstat")) - if err != nil { - return ProcSchedstat{}, err - } - return parseProcSchedstat(string(contents)) -} |