vbatts/pkg
1
0
Fork 0
Code Pull requests Releases Activity

Lint on pkg/* packages

Browse source 
- pkg/useragent
- pkg/units
- pkg/ulimit
- pkg/truncindex
- pkg/timeoutconn
- pkg/term
- pkg/tarsum
- pkg/tailfile
- pkg/systemd
- pkg/stringutils
- pkg/stringid
- pkg/streamformatter
- pkg/sockets
- pkg/signal
- pkg/proxy
- pkg/progressreader
- pkg/pools
- pkg/plugins
- pkg/pidfile
- pkg/parsers
- pkg/parsers/filters
- pkg/parsers/kernel
- pkg/parsers/operatingsystem

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
This commit is contained in:
Vincent Demeester 2015-07-25 10:35:07 +02:00
parent a922d62168
commit 9bcb3cba83
56 changed files with 455 additions and 195 deletions
Download patch file Download diff file Expand all files Collapse all files

18
pidfile/pidfile.go
View file

@ -1,3 +1,6 @@
// Package pidfile provides structure and helper functions to create and remove
// PID file. A PID file is usually a file used to store the process ID of a
// running process.
package pidfile
import (
@ -8,11 +11,12 @@ import (
"strconv"
)
type PidFile struct {
// PIDFile is a file used to store the process ID of a running process.
type PIDFile struct {
path string
}
func checkPidFileAlreadyExists(path string) error {
func checkPIDFileAlreadyExists(path string) error {
if pidString, err := ioutil.ReadFile(path); err == nil {
if pid, err := strconv.Atoi(string(pidString)); err == nil {
if _, err := os.Stat(filepath.Join("/proc", string(pid))); err == nil {
@ -23,18 +27,20 @@ func checkPidFileAlreadyExists(path string) error {
return nil
}
func New(path string) (*PidFile, error) {
if err := checkPidFileAlreadyExists(path); err != nil {
// New creates a PIDfile using the specified path.
func New(path string) (*PIDFile, error) {
if err := checkPIDFileAlreadyExists(path); err != nil {
return nil, err
}
if err := ioutil.WriteFile(path, []byte(fmt.Sprintf("%d", os.Getpid())), 0644); err != nil {
return nil, err
}
return &PidFile{path: path}, nil
return &PIDFile{path: path}, nil
}
func (file PidFile) Remove() error {
// Remove removes the PIDFile.
func (file PIDFile) Remove() error {
if err := os.Remove(file.path); err != nil {
return err
}