936615752a
Copy all the misc/cgo files from the gc toolchain into libgo/misc.
These will be used for testing purposes by later changes to the
gotools directory.
Reviewed-on: https://go-review.googlesource.com/46721
From-SVN: r249674
168 lines
3.0 KiB
Go
168 lines
3.0 KiB
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Basic test cases for cgo.
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package cgotest
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/*
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <errno.h>
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#define SHIFT(x, y) ((x)<<(y))
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#define KILO SHIFT(1, 10)
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#define UINT32VAL 0xc008427bU
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enum E {
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Enum1 = 1,
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Enum2 = 2,
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};
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typedef unsigned char cgo_uuid_t[20];
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void uuid_generate(cgo_uuid_t x) {
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x[0] = 0;
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}
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struct S {
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int x;
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};
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extern enum E myConstFunc(struct S* const ctx, int const id, struct S **const filter);
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enum E myConstFunc(struct S *const ctx, int const id, struct S **const filter) { return 0; }
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// issue 1222
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typedef union {
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long align;
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} xxpthread_mutex_t;
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struct ibv_async_event {
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union {
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int x;
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} element;
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};
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struct ibv_context {
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xxpthread_mutex_t mutex;
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};
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int add(int x, int y) {
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return x+y;
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};
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*/
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import "C"
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import (
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"runtime"
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"syscall"
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"testing"
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"unsafe"
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)
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const EINVAL = C.EINVAL /* test #define */
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var KILO = C.KILO
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func uuidgen() {
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var uuid C.cgo_uuid_t
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C.uuid_generate(&uuid[0])
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}
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func Strtol(s string, base int) (int, error) {
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p := C.CString(s)
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n, err := C.strtol(p, nil, C.int(base))
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C.free(unsafe.Pointer(p))
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return int(n), err
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}
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func Atol(s string) int {
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p := C.CString(s)
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n := C.atol(p)
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C.free(unsafe.Pointer(p))
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return int(n)
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}
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func testConst(t *testing.T) {
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C.myConstFunc(nil, 0, nil)
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}
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func testEnum(t *testing.T) {
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if C.Enum1 != 1 || C.Enum2 != 2 {
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t.Error("bad enum", C.Enum1, C.Enum2)
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}
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}
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func testAtol(t *testing.T) {
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l := Atol("123")
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if l != 123 {
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t.Error("Atol 123: ", l)
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}
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}
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func testErrno(t *testing.T) {
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p := C.CString("no-such-file")
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m := C.CString("r")
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f, err := C.fopen(p, m)
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C.free(unsafe.Pointer(p))
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C.free(unsafe.Pointer(m))
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if err == nil {
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C.fclose(f)
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t.Fatalf("C.fopen: should fail")
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}
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if err != syscall.ENOENT {
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t.Fatalf("C.fopen: unexpected error: %v", err)
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}
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}
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func testMultipleAssign(t *testing.T) {
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p := C.CString("234")
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n, m := C.strtol(p, nil, 345), C.strtol(p, nil, 10)
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if runtime.GOOS == "openbsd" {
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// Bug in OpenBSD strtol(3) - base > 36 succeeds.
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if (n != 0 && n != 239089) || m != 234 {
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t.Fatal("Strtol x2: ", n, m)
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}
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} else if n != 0 || m != 234 {
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t.Fatal("Strtol x2: ", n, m)
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}
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C.free(unsafe.Pointer(p))
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}
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var (
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cuint = (C.uint)(0)
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culong C.ulong
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cchar C.char
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)
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type Context struct {
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ctx *C.struct_ibv_context
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}
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func benchCgoCall(b *testing.B) {
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const x = C.int(2)
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const y = C.int(3)
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for i := 0; i < b.N; i++ {
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C.add(x, y)
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}
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}
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// Issue 2470.
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func testUnsignedInt(t *testing.T) {
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a := (int64)(C.UINT32VAL)
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b := (int64)(0xc008427b)
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if a != b {
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t.Errorf("Incorrect unsigned int - got %x, want %x", a, b)
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}
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}
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// Static (build-time) test that syntax traversal visits all operands of s[i:j:k].
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func sliceOperands(array [2000]int) {
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_ = array[C.KILO:C.KILO:C.KILO] // no type error
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}
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// set in cgo_thread_lock.go init
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var testThreadLockFunc = func(*testing.T) {}
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