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Current Path: /opt/golang/1.19.4/src/runtime/pprof

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📁 ..
📄 elf.go(2.79 KB)
📄 label.go(2.95 KB)
📄 label_test.go(3.21 KB)
📄 map.go(1.94 KB)
📄 mprof_test.go(5.32 KB)
📄 pprof.go(27.95 KB)
📄 pprof_norusage.go(378 B)
📄 pprof_rusage.go(838 B)
📄 pprof_test.go(59.88 KB)
📄 proto.go(25.59 KB)
📄 proto_test.go(16.37 KB)
📄 protobuf.go(2.51 KB)
📄 protomem.go(2.91 KB)
📄 protomem_test.go(2.53 KB)
📄 runtime.go(1.5 KB)
📄 runtime_test.go(3 KB)
📄 rusage_test.go(827 B)
📁 testdata
📄 uname_linux_test.go(1.3 KB)
📄 uname_other_test.go(335 B)

Editing: runtime.go

// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package pprof

import (
	"context"
	"unsafe"
)

// runtime_expandFinalInlineFrame is defined in runtime/symtab.go.
func runtime_expandFinalInlineFrame(stk []uintptr) []uintptr

// runtime_setProfLabel is defined in runtime/proflabel.go.
func runtime_setProfLabel(labels unsafe.Pointer)

// runtime_getProfLabel is defined in runtime/proflabel.go.
func runtime_getProfLabel() unsafe.Pointer

// SetGoroutineLabels sets the current goroutine's labels to match ctx.
// A new goroutine inherits the labels of the goroutine that created it.
// This is a lower-level API than Do, which should be used instead when possible.
func SetGoroutineLabels(ctx context.Context) {
	ctxLabels, _ := ctx.Value(labelContextKey{}).(*labelMap)
	runtime_setProfLabel(unsafe.Pointer(ctxLabels))
}

// Do calls f with a copy of the parent context with the
// given labels added to the parent's label map.
// Goroutines spawned while executing f will inherit the augmented label-set.
// Each key/value pair in labels is inserted into the label map in the
// order provided, overriding any previous value for the same key.
// The augmented label map will be set for the duration of the call to f
// and restored once f returns.
func Do(ctx context.Context, labels LabelSet, f func(context.Context)) {
	defer SetGoroutineLabels(ctx)
	ctx = WithLabels(ctx, labels)
	SetGoroutineLabels(ctx)
	f(ctx)
}

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Editing: runtime.go

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