func init() {
if os.Getenv("PPROF_SYNC") != "" {
enabled = true
}
if enabled {
lockHolders = pprof.NewProfile("lockHolders")
lockBlockers = pprof.NewProfile("lockBlockers")
}
}
func Enable() {
enableMu.Lock()
defer enableMu.Unlock()
if enabled {
return
}
lockTimes = make(map[[32]uintptr]time.Duration)
lockHolders = pprof.NewProfile("lockHolders")
lockBlockers = pprof.NewProfile("lockBlockers")
http.DefaultServeMux.HandleFunc("/debug/lockTimes", func(w http.ResponseWriter, r *http.Request) {
PrintLockTimes(w)
})
enabled = true
}
package pproffd
import (
"io"
"net"
"os"
"runtime/pprof"
)
var p = pprof.NewProfile("fds")
type fd int
func (me *fd) Closed() {
p.Remove(me)
}
func Add(skip int) (ret *fd) {
ret = new(fd)
p.Add(ret, skip+2)
return
}
type closeWrapper struct {
fd *fd
c io.Closer
}
func (me closeWrapper) Close() error {
me.fd.Closed()
return me.c.Close()