Ryan Macnak
379f8cac14
TEST=local build Change-Id: I32e400efb0f6d5e41b894f495ae2e77352f6f5fa Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/332142 Reviewed-by: Daco Harkes <dacoharkes@google.com> Commit-Queue: Daco Harkes <dacoharkes@google.com>
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <iostream>
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#if defined(_WIN32)
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#define DART_EXPORT extern "C" __declspec(dllexport)
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#else
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#define DART_EXPORT \
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extern "C" __attribute__((visibility("default"))) __attribute((used))
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#endif
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DART_EXPORT intptr_t return42() {
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return 42;
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}
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DART_EXPORT double timesFour(double d) {
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return d * 4.0;
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}
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// Wrap memmove so we can easily find it on all platforms.
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//
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// We use this in our samples to illustrate resource lifetime management.
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DART_EXPORT void MemMove(void* destination, void* source, intptr_t num_bytes) {
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memmove(destination, source, num_bytes);
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}
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// Some opaque struct.
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typedef struct {
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} some_resource;
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DART_EXPORT some_resource* AllocateResource() {
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void* pointer = malloc(sizeof(int64_t));
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// Dummy initialize.
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static_cast<int64_t*>(pointer)[0] = 10;
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return static_cast<some_resource*>(pointer);
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}
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DART_EXPORT void UseResource(some_resource* resource) {
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// Dummy change.
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reinterpret_cast<int64_t*>(resource)[0] += 10;
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}
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DART_EXPORT void ReleaseResource(some_resource* resource) {
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free(resource);
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}
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