mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-29 07:29:42 -08:00
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
// Copyright 2016 Peter Mattis.
|
|
//
|
|
// 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. See the AUTHORS file
|
|
// for names of contributors.
|
|
|
|
// +build amd64 amd64p32 arm
|
|
// +build go1.5,!go1.6
|
|
|
|
package goid
|
|
|
|
import "unsafe"
|
|
|
|
// Just enough of the structs from runtime/runtime2.go to get the offset to goid.
|
|
// See https://github.com/golang/go/blob/release-branch.go1.5/src/runtime/runtime2.go
|
|
|
|
type stack struct {
|
|
lo uintptr
|
|
hi uintptr
|
|
}
|
|
|
|
type gobuf struct {
|
|
sp uintptr
|
|
pc uintptr
|
|
g uintptr
|
|
ctxt uintptr
|
|
ret uintptr
|
|
lr uintptr
|
|
bp uintptr
|
|
}
|
|
|
|
type g struct {
|
|
stack stack
|
|
stackguard0 uintptr
|
|
stackguard1 uintptr
|
|
|
|
_panic uintptr
|
|
_defer uintptr
|
|
m uintptr
|
|
stackAlloc uintptr
|
|
sched gobuf
|
|
syscallsp uintptr
|
|
syscallpc uintptr
|
|
stkbar []uintptr
|
|
stkbarPos uintptr
|
|
param unsafe.Pointer
|
|
atomicstatus uint32
|
|
stackLock uint32
|
|
goid int64 // Here it is!
|
|
}
|
|
|
|
// Backdoor access to runtime·getg().
|
|
func getg() uintptr // in goid_go1.5plus.s
|
|
|
|
func Get() int64 {
|
|
gg := (*g)(unsafe.Pointer(getg()))
|
|
return gg.goid
|
|
}
|