Daco Harkes
7d46d4b5cb
Prototype for `dart:ffi` on Linux/MacOS x64 in JIT mode. `dart:ffi` is experimental and its API is likely to change in the future. Progress and design decisions are tracked in https://github.com/dart-lang/sdk/projects/13 issue: https://github.com/dart-lang/sdk/issues/34452 Change-Id: Ifa4566388e42c8757f154741d11e303465ef305d Cq-Include-Trybots: luci.dart.try:vm-kernel-optcounter-threshold-linux-release-x64-try, vm-kernel-precomp-linux-debug-x64-try, vm-kernel-precomp-linux-release-simarm-try, vm-kernel-precomp-linux-release-simarm64-try, vm-kernel-precomp-linux-release-x64-try, vm-kernel-precomp-mac-release-simarm64-try, vm-kernel-precomp-win-release-x64-try, vm-kernel-mac-debug-x64-try, vm-kernel-asan-linux-release-x64 Reviewed-on: https://dart-review.googlesource.com/c/80124 Reviewed-by: Samir Jindel <sjindel@google.com> Auto-Submit: Daco Harkes <dacoharkes@google.com>
56 lines
1.6 KiB
Dart
56 lines
1.6 KiB
Dart
// 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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import "dart:_internal" show patch;
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@patch
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Pointer<T> allocate<T extends NativeType>({int count: 1}) native "Ffi_allocate";
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@patch
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T fromAddress<T extends Pointer>(int ptr) native "Ffi_fromAddress";
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@patch
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int sizeOf<T extends NativeType>() native "Ffi_sizeOf";
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@patch
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Pointer<NativeFunction<T>> fromFunction<T extends Function>(
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@DartRepresentationOf("T") Function f) native "Ffi_fromFunction";
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@patch
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@pragma("vm:entry-point")
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class Pointer<T extends NativeType> {
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@patch
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void store(Object value) native "Ffi_store";
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@patch
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R load<R>() native "Ffi_load";
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@patch
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int get address native "Ffi_address";
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// Note this could also be implmented without an extra native as offsetBy
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// (elementSize()*index). This would be 2 native calls rather than one. What
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// would be better?
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@patch
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Pointer<T> elementAt(int index) native "Ffi_elementAt";
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// Note this could also be implmented without an extra native as
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// fromAddress(address). This would be 2 native calls rather than one.
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// What would be better?
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@patch
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Pointer<T> offsetBy(int offsetInBytes) native "Ffi_offsetBy";
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// Note this could also be implemented without an extra native as
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// fromAddress(address). This would be 2 native calls rather than one.
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// What would be better?
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@patch
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U cast<U extends Pointer>() native "Ffi_cast";
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@patch
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R asFunction<R extends Function>() native "Ffi_asFunction";
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@patch
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void free() native "Ffi_free";
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}
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