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opt
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golang
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1.22.0
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runtime
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testdata
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testprogcgo
Dosya Düzenle: gprof.go
// Copyright 2021 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 main // Test taking a goroutine profile with C traceback. /* // Defined in gprof_c.c. void CallGoSleep(void); void gprofCgoTraceback(void* parg); void gprofCgoContext(void* parg); */ import "C" import ( "fmt" "io" "runtime" "runtime/pprof" "time" "unsafe" ) func init() { register("GoroutineProfile", GoroutineProfile) } func GoroutineProfile() { runtime.SetCgoTraceback(0, unsafe.Pointer(C.gprofCgoTraceback), unsafe.Pointer(C.gprofCgoContext), nil) go C.CallGoSleep() go C.CallGoSleep() go C.CallGoSleep() time.Sleep(1 * time.Second) prof := pprof.Lookup("goroutine") prof.WriteTo(io.Discard, 1) fmt.Println("OK") } //export GoSleep func GoSleep() { time.Sleep(time.Hour) }
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