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📄 abi_amd64.h(2.73 KB)
📄 abi_arm64.h(1.5 KB)
📄 asm_386.s(737 B)
📄 asm_amd64.s(937 B)
📄 asm_arm.s(1.76 KB)
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📄 asm_loong64.s(1.66 KB)
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📄 callbacks.go(3.95 KB)
📄 callbacks_aix.go(402 B)
📄 callbacks_traceback.go(475 B)
📄 cgo.go(939 B)
📄 dragonfly.go(485 B)
📄 freebsd.go(549 B)
📄 gcc_386.S(834 B)
📄 gcc_aix_ppc64.S(2.69 KB)
📄 gcc_aix_ppc64.c(1.29 KB)
📄 gcc_amd64.S(1.12 KB)
📄 gcc_android.c(2.58 KB)
📄 gcc_arm.S(1.12 KB)
📄 gcc_arm64.S(1.73 KB)
📄 gcc_context.c(529 B)
📄 gcc_darwin_amd64.c(1.32 KB)
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📄 gcc_dragonfly_amd64.c(1.32 KB)
📄 gcc_fatalf.c(469 B)
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📄 gcc_freebsd_sigaction.c(1.99 KB)
📄 gcc_libinit.c(3.2 KB)
📄 gcc_libinit_windows.c(3.95 KB)
📄 gcc_linux_386.c(1.5 KB)
📄 gcc_linux_amd64.c(2.46 KB)
📄 gcc_linux_arm.c(1.47 KB)
📄 gcc_linux_arm64.c(2.28 KB)
📄 gcc_linux_loong64.c(1.44 KB)
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📄 gcc_linux_ppc64x.S(2.96 KB)
📄 gcc_linux_riscv64.c(1.44 KB)
📄 gcc_linux_s390x.c(1.41 KB)
📄 gcc_loong64.S(1.49 KB)
📄 gcc_mips64x.S(1.76 KB)
📄 gcc_mipsx.S(1.51 KB)
📄 gcc_mmap.c(881 B)
📄 gcc_netbsd_386.c(1.8 KB)
📄 gcc_netbsd_amd64.c(1.77 KB)
📄 gcc_netbsd_arm.c(1.85 KB)
📄 gcc_netbsd_arm64.c(1.84 KB)
📄 gcc_openbsd_386.c(1.32 KB)
📄 gcc_openbsd_amd64.c(1.29 KB)
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📄 gcc_riscv64.S(1.56 KB)
📄 gcc_s390x.S(1.37 KB)
📄 gcc_setenv.c(553 B)
📄 gcc_sigaction.c(2.08 KB)
📄 gcc_signal2_ios_arm64.c(507 B)
📄 gcc_signal_ios_arm64.c(5.97 KB)
📄 gcc_signal_ios_nolldb.c(325 B)
📄 gcc_solaris_amd64.c(1.75 KB)
📄 gcc_traceback.c(1.49 KB)
📄 gcc_util.c(1.85 KB)
📄 gcc_windows_386.c(894 B)
📄 gcc_windows_amd64.c(910 B)
📄 gcc_windows_arm64.c(764 B)
📄 handle.go(3.61 KB)
📄 handle_test.go(1.82 KB)
📄 iscgo.go(646 B)
📄 libcgo.h(3.45 KB)
📄 libcgo_unix.h(604 B)
📄 libcgo_windows.h(258 B)
📄 linux.go(2.74 KB)
📄 linux_syscall.c(1.88 KB)
📄 mmap.go(1 KB)
📄 netbsd.go(546 B)
📄 openbsd.go(566 B)
📄 setenv.go(597 B)
📄 sigaction.go(877 B)
📄 signal_ios_arm64.go(270 B)
📄 signal_ios_arm64.s(1.8 KB)

Editing: handle_test.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 cgo

import (
	"reflect"
	"testing"
)

func TestHandle(t *testing.T) {
	v := 42

tests := []struct {
		v1 any
		v2 any
	}{
		{v1: v, v2: v},
		{v1: &v, v2: &v},
		{v1: nil, v2: nil},
	}

for _, tt := range tests {
		h1 := NewHandle(tt.v1)
		h2 := NewHandle(tt.v2)

if uintptr(h1) == 0 || uintptr(h2) == 0 {
			t.Fatalf("NewHandle returns zero")
		}

if uintptr(h1) == uintptr(h2) {
			t.Fatalf("Duplicated Go values should have different handles, but got equal")
		}

h1v := h1.Value()
		h2v := h2.Value()
		if !reflect.DeepEqual(h1v, h2v) || !reflect.DeepEqual(h1v, tt.v1) {
			t.Fatalf("Value of a Handle got wrong, got %+v %+v, want %+v", h1v, h2v, tt.v1)
		}

h1.Delete()
		h2.Delete()
	}

siz := 0
	handles.Range(func(k, v any) bool {
		siz++
		return true
	})
	if siz != 0 {
		t.Fatalf("handles are not cleared, got %d, want %d", siz, 0)
	}
}

func TestInvalidHandle(t *testing.T) {
	t.Run("zero", func(t *testing.T) {
		h := Handle(0)

defer func() {
			if r := recover(); r != nil {
				return
			}
			t.Fatalf("Delete of zero handle did not trigger a panic")
		}()

h.Delete()
	})

t.Run("invalid", func(t *testing.T) {
		h := NewHandle(42)

defer func() {
			if r := recover(); r != nil {
				h.Delete()
				return
			}
			t.Fatalf("Invalid handle did not trigger a panic")
		}()

Handle(h + 1).Delete()
	})
}

func BenchmarkHandle(b *testing.B) {
	b.Run("non-concurrent", func(b *testing.B) {
		for i := 0; i < b.N; i++ {
			h := NewHandle(i)
			_ = h.Value()
			h.Delete()
		}
	})
	b.Run("concurrent", func(b *testing.B) {
		b.RunParallel(func(pb *testing.PB) {
			var v int
			for pb.Next() {
				h := NewHandle(v)
				_ = h.Value()
				h.Delete()
			}
		})
	})
}

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Editing: handle_test.go

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