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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/execution/local-isolate.h"
#include "src/bigint/bigint.h"
#include "src/execution/isolate.h"
#include "src/execution/thread-id.h"
#include "src/handles/handles-inl.h"
#include "src/logging/local-logger.h"
#include "src/logging/runtime-call-stats-scope.h"
namespace v8 {
namespace internal {
LocalIsolate::LocalIsolate(Isolate* isolate, ThreadKind kind)
: HiddenLocalFactory(isolate),
heap_(isolate->heap(), kind),
isolate_(isolate),
logger_(new LocalLogger(isolate)),
thread_id_(ThreadId::Current()),
stack_limit_(kind == ThreadKind::kMain
? isolate->stack_guard()->real_climit()
: GetCurrentStackPosition() - v8_flags.stack_size * KB)
{
#ifdef V8_RUNTIME_CALL_STATS
if (kind == ThreadKind::kMain) {
runtime_call_stats_ = isolate->counters()->runtime_call_stats();
} else {
rcs_scope_.emplace(isolate->counters()->worker_thread_runtime_call_stats());
runtime_call_stats_ = rcs_scope_->Get();
}
#endif
}
LocalIsolate::~LocalIsolate() {
if (bigint_processor_) bigint_processor_->Destroy();
}
void LocalIsolate::RegisterDeserializerStarted() {
return isolate_->RegisterDeserializerStarted();
}
void LocalIsolate::RegisterDeserializerFinished() {
return isolate_->RegisterDeserializerFinished();
}
bool LocalIsolate::has_active_deserializer() const {
return isolate_->has_active_deserializer();
}
int LocalIsolate::GetNextScriptId() { return isolate_->GetNextScriptId(); }
#if V8_SFI_HAS_UNIQUE_ID
int LocalIsolate::GetNextUniqueSharedFunctionInfoId() {
return isolate_->GetNextUniqueSharedFunctionInfoId();
}
#endif // V8_SFI_HAS_UNIQUE_ID
// Used for lazy initialization, based on an assumption that most
// LocalIsolates won't be used to parse any BigInt literals.
void LocalIsolate::InitializeBigIntProcessor() {
bigint_processor_ = bigint::Processor::New(new bigint::Platform());
}
// static
bool StackLimitCheck::HasOverflowed(LocalIsolate* local_isolate) {
return GetCurrentStackPosition() < local_isolate->stack_limit();
}
#ifdef V8_INTL_SUPPORT
// WARNING: This might be out-of-sync with the main-thread.
const std::string& LocalIsolate::DefaultLocale() {
const std::string& res =
is_main_thread() ? isolate_->DefaultLocale() : default_locale_;
DCHECK(!res.empty());
return res;
}
#endif
} // namespace internal
} // namespace v8
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