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Current Path: /opt/golang/1.22.0/src/runtime/testdata/testprogcgo

opt / golang / 1.22.0 / src / runtime / testdata / testprogcgo /

📁 ..
📄 aprof.go(1.14 KB)
📄 aprof_c.c(217 B)
📄 bigstack1_windows.c(379 B)
📄 bigstack_windows.c(1.2 KB)
📄 bigstack_windows.go(586 B)
📄 bindm.c(692 B)
📄 bindm.go(1.2 KB)
📄 callback.go(1.86 KB)
📄 catchpanic.go(993 B)
📄 cgo.go(1.82 KB)
📄 cgonocallback.c(236 B)
📄 cgonocallback.go(629 B)
📄 cgonoescape.go(1.84 KB)
📄 crash.go(743 B)
📄 deadlock.go(509 B)
📄 destructor.c(459 B)
📄 destructor.go(442 B)
📄 dll_windows.go(459 B)
📄 dropm.go(1.05 KB)
📄 dropm_stub.go(336 B)
📄 eintr.go(5.17 KB)
📄 exec.go(2.1 KB)
📄 gprof.go(868 B)
📄 gprof_c.c(700 B)
📄 issue29707.go(1.15 KB)
📄 lockosthread.c(301 B)
📄 lockosthread.go(2.52 KB)
📄 main.go(651 B)
📄 needmdeadlock.go(1.83 KB)
📄 numgoroutine.go(1.91 KB)
📄 panic.c(239 B)
📄 panic.go(312 B)
📄 pprof.go(1.67 KB)
📄 pprof_callback.go(1.82 KB)
📄 raceprof.go(1.67 KB)
📄 racesig.go(1.67 KB)
📄 segv.go(525 B)
📄 segv_linux.go(546 B)
📄 sigfwd.go(1.58 KB)
📄 sigpanic.go(484 B)
📄 sigstack.go(2.09 KB)
📄 sigthrow.go(312 B)
📄 stack_windows.go(1.1 KB)
📄 stackswitch.c(3.88 KB)
📄 stackswitch.go(1.07 KB)
📄 threadpanic.go(428 B)
📄 threadpanic_unix.c(435 B)
📄 threadpanic_windows.c(435 B)
📄 threadpprof.go(2.54 KB)
📄 threadprof.go(2.41 KB)
📄 trace.go(1.15 KB)
📄 trace_unix.c(688 B)
📄 trace_windows.c(777 B)
📄 traceback.go(949 B)
📄 traceback_c.c(1.21 KB)
📄 tracebackctxt.go(2.85 KB)
📄 tracebackctxt_c.c(2.33 KB)
📁 windows

Editing: trace.go

// Copyright 2023 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

/*
// Defined in trace_*.c.
void cCalledFromGo(void);
*/
import "C"
import (
	"context"
	"fmt"
	"log"
	"os"
	"runtime/trace"
)

func init() {
	register("Trace", Trace)
}

// Trace is used by TestTraceUnwindCGO.
func Trace() {
	file, err := os.CreateTemp("", "testprogcgo_trace")
	if err != nil {
		log.Fatalf("failed to create temp file: %s", err)
	}
	defer file.Close()

if err := trace.Start(file); err != nil {
		log.Fatal(err)
	}
	defer trace.Stop()

goCalledFromGo()
	<-goCalledFromCThreadChan

fmt.Printf("trace path:%s", file.Name())
}

// goCalledFromGo calls cCalledFromGo which calls back into goCalledFromC and
// goCalledFromCThread.
func goCalledFromGo() {
	C.cCalledFromGo()
}

//export goCalledFromC
func goCalledFromC() {
	trace.Log(context.Background(), "goCalledFromC", "")
}

var goCalledFromCThreadChan = make(chan struct{})

//export goCalledFromCThread
func goCalledFromCThread() {
	trace.Log(context.Background(), "goCalledFromCThread", "")
	close(goCalledFromCThreadChan)
}

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Editing: trace.go

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