Alexander Aprelev
d2bc055651
This brings Mutex and ConditionVariable classes to guard access to shared variables. TEST=shared_test, shared_primitives_test BUG=https://github.com/dart-lang/sdk/issues/55991 CoreLibraryReviewExempt: dart:concurrent library is experimental, restricted to main/dev channels, vm-only at this point. Change-Id: I64ca7a0434cbe0079976133ccbf9de2dd4c0d7b1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/372181 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Slava Egorov <vegorov@google.com>
64 lines
2.5 KiB
C++
64 lines
2.5 KiB
C++
// Copyright (c) 2024, 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 "bin/concurrent_natives.h"
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#include "bin/builtin.h"
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namespace dart {
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namespace bin {
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// Lists the native functions implementing advanced dart:io classes.
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// Some classes, like File and Directory, list their implementations in
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// builtin_natives.cc instead.
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#define CONCURRENT_NATIVE_LIST(V) \
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V(Mutex_Initialize, 1) \
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V(Mutex_Lock, 1) \
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V(Mutex_Unlock, 1) \
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V(ConditionVariable_Initialize, 1) \
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V(ConditionVariable_Wait, 2) \
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V(ConditionVariable_Notify, 1)
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CONCURRENT_NATIVE_LIST(DECLARE_FUNCTION);
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static const struct NativeEntries {
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const char* name_;
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Dart_NativeFunction function_;
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int argument_count_;
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} ConcurrentEntries[] = {CONCURRENT_NATIVE_LIST(REGISTER_FUNCTION)};
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Dart_NativeFunction ConcurrentNativeLookup(Dart_Handle name,
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int argument_count,
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bool* auto_setup_scope) {
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const char* function_name = nullptr;
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Dart_Handle result = Dart_StringToCString(name, &function_name);
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ASSERT(!Dart_IsError(result));
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ASSERT(function_name != nullptr);
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ASSERT(auto_setup_scope != nullptr);
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*auto_setup_scope = true;
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int num_entries = sizeof(ConcurrentEntries) / sizeof(struct NativeEntries);
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for (int i = 0; i < num_entries; i++) {
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const struct NativeEntries* entry = &(ConcurrentEntries[i]);
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if ((strcmp(function_name, entry->name_) == 0) &&
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(entry->argument_count_ == argument_count)) {
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return reinterpret_cast<Dart_NativeFunction>(entry->function_);
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}
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}
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return nullptr;
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}
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const uint8_t* ConcurrentNativeSymbol(Dart_NativeFunction nf) {
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int num_entries = sizeof(ConcurrentEntries) / sizeof(struct NativeEntries);
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for (int i = 0; i < num_entries; i++) {
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const struct NativeEntries* entry = &(ConcurrentEntries[i]);
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if (reinterpret_cast<Dart_NativeFunction>(entry->function_) == nf) {
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return reinterpret_cast<const uint8_t*>(entry->name_);
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}
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}
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return nullptr;
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}
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} // namespace bin
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} // namespace dart
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