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Add DragonFlyBSD support #9

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Add DragonFlyBSD support #9

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35 changes: 35 additions & 0 deletions process_dragonfly.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
// +build dragonfly

package ps

import (
"fmt"
"io/ioutil"
"path/filepath"
)

// Path returns path to process executable
func (p *UnixProcess) Path() (string, error) {
return filepath.EvalSymlinks(fmt.Sprintf("/proc/%d/file", p.pid))
}

// Refresh reloads all the data associated with this process.
func (p *UnixProcess) Refresh() error {
statPath := fmt.Sprintf("/proc/%d/status", p.pid)
dataBytes, err := ioutil.ReadFile(statPath)
if err != nil {
return err
}

data := string(dataBytes)

_, err = fmt.Sscanf(data,
"%s %d %d %d %d",
&p.binary,
&p.pid,
&p.ppid,
&p.pgrp,
&p.sid)

return err
}
41 changes: 41 additions & 0 deletions process_linux.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,41 @@
// +build linux

package ps

import (
"fmt"
"io/ioutil"
"strings"
"path/filepath"
)

// Path returns path to process executable
func (p *UnixProcess) Path() (string, error) {
return filepath.EvalSymlinks(fmt.Sprintf("/proc/%d/exe", p.pid))
}

// Refresh reloads all the data associated with this process.
func (p *UnixProcess) Refresh() error {
statPath := fmt.Sprintf("/proc/%d/stat", p.pid)
dataBytes, err := ioutil.ReadFile(statPath)
if err != nil {
return err
}

// First, parse out the image name
data := string(dataBytes)
binStart := strings.IndexRune(data, '(') + 1
binEnd := strings.IndexRune(data[binStart:], ')')
p.binary = data[binStart : binStart+binEnd]

// Move past the image name and start parsing the rest
data = data[binStart+binEnd+2:]
_, err = fmt.Sscanf(data,
"%c %d %d %d",
&p.state,
&p.ppid,
&p.pgrp,
&p.sid)

return err
}
2 changes: 1 addition & 1 deletion process_nix_test.go
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// +build darwin linux
// +build darwin linux dragonfly

package ps

Expand Down
36 changes: 1 addition & 35 deletions process_unix.go
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Original file line number Diff line number Diff line change
@@ -1,15 +1,13 @@
// +build linux
// +build linux dragonfly

package ps

import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strconv"
"strings"
)

// UnixProcess is an implementation of Process that contains Unix-specific
Expand Down Expand Up @@ -44,38 +42,6 @@ func (p *UnixProcess) Executable() string {
return filepath.Base(path)
}

// Path returns path to process executable
func (p *UnixProcess) Path() (string, error) {
return filepath.EvalSymlinks(fmt.Sprintf("/proc/%d/exe", p.pid))
}

// Refresh reloads all the data associated with this process.
func (p *UnixProcess) Refresh() error {
statPath := fmt.Sprintf("/proc/%d/stat", p.pid)
dataBytes, err := ioutil.ReadFile(statPath)
if err != nil {
return err
}

// First, parse out the image name
data := string(dataBytes)
binStart := strings.IndexRune(data, '(') + 1
binEnd := strings.IndexRune(data[binStart:], ')')
p.binary = data[binStart : binStart+binEnd]

// Move past the image name and start parsing the rest
// The name here might not be the full name
data = data[binStart+binEnd+2:]
_, err = fmt.Sscanf(data,
"%c %d %d %d",
&p.state,
&p.ppid,
&p.pgrp,
&p.sid)

return err
}

func findProcess(pid int) (Process, error) {
dir := fmt.Sprintf("/proc/%d", pid)
_, err := os.Stat(dir)
Expand Down
2 changes: 1 addition & 1 deletion process_unix_test.go
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// +build linux
// +build linux dragonfly

package ps

Expand Down