mirror of
https://github.com/DominicBreuker/pspy.git
synced 2025-12-21 03:34:50 +00:00
improve console output
This commit is contained in:
Dominic Breuker
88
internal/inotify/event.go
Normal file
88
internal/inotify/event.go
Normal file
@@ -0,0 +1,88 @@
|
||||
package inotify
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"log"
|
||||
"strconv"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
var InotifyEvents = map[uint32]string{
|
||||
unix.IN_ACCESS: "ACCESS",
|
||||
unix.IN_ATTRIB: "ATTRIB",
|
||||
unix.IN_CLOSE_NOWRITE: "CLOSE_NOWRITE",
|
||||
unix.IN_CLOSE_WRITE: "CLOSE_WRITE",
|
||||
unix.IN_CREATE: "CREATE",
|
||||
unix.IN_DELETE: "DELETE",
|
||||
unix.IN_DELETE_SELF: "DELETE_SELF",
|
||||
unix.IN_MODIFY: "MODIFY",
|
||||
unix.IN_MOVED_FROM: "MOVED_FROM",
|
||||
unix.IN_MOVED_TO: "MOVED_TO",
|
||||
unix.IN_MOVE_SELF: "MOVE_SELF",
|
||||
unix.IN_OPEN: "OPEN",
|
||||
(unix.IN_ACCESS | unix.IN_ISDIR): "ACCESS DIR",
|
||||
(unix.IN_ATTRIB | unix.IN_ISDIR): "ATTRIB DIR",
|
||||
(unix.IN_CLOSE_NOWRITE | unix.IN_ISDIR): "CLOSE_NOWRITE DIR",
|
||||
(unix.IN_CLOSE_WRITE | unix.IN_ISDIR): "CLOSE_WRITE DIR",
|
||||
(unix.IN_CREATE | unix.IN_ISDIR): "CREATE DIR",
|
||||
(unix.IN_DELETE | unix.IN_ISDIR): "DELETE DIR",
|
||||
(unix.IN_DELETE_SELF | unix.IN_ISDIR): "DELETE_SELF DIR",
|
||||
(unix.IN_MODIFY | unix.IN_ISDIR): "MODIFY DIR",
|
||||
(unix.IN_MOVED_FROM | unix.IN_ISDIR): "MOVED_FROM DIR",
|
||||
(unix.IN_MOVE_SELF | unix.IN_ISDIR): "MODE_SELF DIR",
|
||||
(unix.IN_OPEN | unix.IN_ISDIR): "OPEN DIR",
|
||||
}
|
||||
|
||||
type Event struct {
|
||||
name string
|
||||
op string
|
||||
}
|
||||
|
||||
func (e Event) String() string {
|
||||
return fmt.Sprintf("%20s | %s", e.op, e.name)
|
||||
}
|
||||
|
||||
func newEvent(name string, mask uint32) Event {
|
||||
e := Event{name: name}
|
||||
op, ok := InotifyEvents[mask]
|
||||
if !ok {
|
||||
op = strconv.FormatInt(int64(mask), 2)
|
||||
}
|
||||
e.op = op
|
||||
return e
|
||||
}
|
||||
|
||||
func eventLogger(i *Inotify, buffers chan bufRead) {
|
||||
for bf := range buffers {
|
||||
n := bf.n
|
||||
buf := bf.buf
|
||||
|
||||
if n < unix.SizeofInotifyEvent {
|
||||
// incomplete or erroneous read
|
||||
continue
|
||||
}
|
||||
|
||||
var ptr uint32
|
||||
var name string
|
||||
for ptr <= uint32(n-unix.SizeofInotifyEvent) {
|
||||
sys := (*unix.InotifyEvent)(unsafe.Pointer(&buf[ptr]))
|
||||
ptr += unix.SizeofInotifyEvent
|
||||
|
||||
watcher, ok := i.watchers[int(sys.Wd)]
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
name = watcher.dir + "/"
|
||||
if sys.Len > 0 && len(buf) >= int(ptr+sys.Len) {
|
||||
name += string(bytes.TrimRight(buf[ptr:ptr+sys.Len], "\x00"))
|
||||
ptr += sys.Len
|
||||
}
|
||||
|
||||
ev := newEvent(name, sys.Mask)
|
||||
log.Printf("\x1b[32;1mFS: %+v\x1b[0m", ev)
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -2,9 +2,6 @@ package inotify
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"log"
|
||||
"strings"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
@@ -57,6 +54,10 @@ func (i *Inotify) UnPause() {
|
||||
i.paused = false
|
||||
}
|
||||
|
||||
func (i *Inotify) NumWatchers() int {
|
||||
return len(i.watchers)
|
||||
}
|
||||
|
||||
func (i *Inotify) String() string {
|
||||
if len(i.watchers) < 20 {
|
||||
dirs := make([]string, 0)
|
||||
@@ -75,9 +76,9 @@ type bufRead struct {
|
||||
}
|
||||
|
||||
func watch(i *Inotify) {
|
||||
buf := make([]byte, 20*unix.SizeofInotifyEvent)
|
||||
buf := make([]byte, 5*unix.SizeofInotifyEvent)
|
||||
buffers := make(chan bufRead)
|
||||
go verboseWatcher(i, buffers)
|
||||
go eventLogger(i, buffers)
|
||||
for {
|
||||
n, _ := unix.Read(i.fd, buf)
|
||||
if !i.paused {
|
||||
@@ -89,73 +90,3 @@ func watch(i *Inotify) {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func verboseWatcher(i *Inotify, buffers chan bufRead) {
|
||||
for bf := range buffers {
|
||||
n := bf.n
|
||||
buf := bf.buf
|
||||
|
||||
if n < unix.SizeofInotifyEvent {
|
||||
if n == 0 {
|
||||
// If EOF is received. This should really never happen.
|
||||
panic(fmt.Sprintf("No bytes read from fd"))
|
||||
} else if n < 0 {
|
||||
// If an error occurred while reading.
|
||||
log.Printf("ERROR: reading from inotify: %d", n)
|
||||
} else {
|
||||
// Read was too short.
|
||||
log.Printf("ERROR: Short read")
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
var offset uint32
|
||||
for offset <= uint32(n-unix.SizeofInotifyEvent) {
|
||||
raw := (*unix.InotifyEvent)(unsafe.Pointer(&buf[offset]))
|
||||
|
||||
mask := uint32(raw.Mask)
|
||||
nameLen := uint32(raw.Len)
|
||||
|
||||
name := i.watchers[int(raw.Wd)].dir
|
||||
if nameLen > 0 {
|
||||
bytes := (*[unix.PathMax]byte)(unsafe.Pointer(&buf[offset+unix.SizeofInotifyEvent]))
|
||||
if uint32(len(bytes)) > nameLen {
|
||||
name += "/" + strings.TrimRight(string(bytes[0:nameLen]), "\000")
|
||||
}
|
||||
}
|
||||
ev := newEvent(name, mask)
|
||||
log.Printf("### %+v", ev)
|
||||
|
||||
offset += unix.SizeofInotifyEvent + nameLen
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type Event struct {
|
||||
name string
|
||||
op string
|
||||
}
|
||||
|
||||
func (e Event) String() string {
|
||||
return fmt.Sprintf("%10s | %s", e.op, e.name)
|
||||
}
|
||||
|
||||
func newEvent(name string, mask uint32) Event {
|
||||
e := Event{name: name}
|
||||
if mask&unix.IN_CREATE == unix.IN_CREATE || mask&unix.IN_MOVED_TO == unix.IN_MOVED_TO {
|
||||
e.op = "CREATE"
|
||||
}
|
||||
if mask&unix.IN_DELETE_SELF == unix.IN_DELETE_SELF || mask&unix.IN_DELETE == unix.IN_DELETE {
|
||||
e.op = "REMOVE"
|
||||
}
|
||||
if mask&unix.IN_MODIFY == unix.IN_MODIFY {
|
||||
e.op = "WRITE"
|
||||
}
|
||||
if mask&unix.IN_MOVE_SELF == unix.IN_MOVE_SELF || mask&unix.IN_MOVED_FROM == unix.IN_MOVED_FROM {
|
||||
e.op = "RENAME"
|
||||
}
|
||||
if mask&unix.IN_ATTRIB == unix.IN_ATTRIB {
|
||||
e.op = "CHMOD"
|
||||
}
|
||||
return e
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user