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v8/test/cctest/cctest.h
Gabriel Charette 70222a9d03 [v8 platform] Rename BackgroundThread methods to WorkerThreads method. 
Follow-up to https://chromium-review.googlesource.com/c/v8/v8/+/941442.

"background" refers to a priority and is inappropriate to refer to
worker threads as many tasks posted to worker threads by v8 are in
fact high priority.

Also took advantage of this rename to make NumberOfWorkerThreads()
return an int instead of size_t. While it is never negative, int is
simpler and Google C++ style guide states to avoid unsigned integers in
such cases (ref. "On Unsigned Integers" @
https://google.github.io/styleguide/cppguide.html#Integer_Types).

The Chromium embedder for that call provided an int which was converted
to size_t for this override and most often casted back down to int on the
v8 side, adding churn, and readability overhead.

R=ahaas@chromium.org

Bug: v8:7310
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ib5280df73d2846b111d985be65a10b049995ea6a
Reviewed-on: https://chromium-review.googlesource.com/941944
Commit-Queue: Gabriel Charette <gab@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51662}
2018-03-01 15:30:35 +00:00

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// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CCTEST_H_
#define CCTEST_H_
#include <memory>
#include "include/libplatform/libplatform.h"
#include "include/v8-platform.h"
#include "src/assembler.h"
#include "src/debug/debug-interface.h"
#include "src/factory.h"
#include "src/flags.h"
#include "src/isolate.h"
#include "src/objects.h"
#include "src/utils.h"
#include "src/v8.h"
#include "src/zone/accounting-allocator.h"
namespace v8 {
namespace base {
class RandomNumberGenerator;
} // namespace base
namespace internal {
class HandleScope;
class Zone;
} // namespace internal
} // namespace v8
#ifndef TEST
#define TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, true, true); \
static void Test##Name()
#endif
#ifndef UNINITIALIZED_TEST
#define UNINITIALIZED_TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, true, false); \
static void Test##Name()
#endif
#ifndef DISABLED_TEST
#define DISABLED_TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, false, true); \
static void Test##Name()
#endif
#define EXTENSION_LIST(V) \
V(GC_EXTENSION, "v8/gc") \
V(PRINT_EXTENSION, "v8/print") \
V(PROFILER_EXTENSION, "v8/profiler") \
V(TRACE_EXTENSION, "v8/trace")
#define DEFINE_EXTENSION_ID(Name, Ident) Name##_ID,
enum CcTestExtensionIds {
EXTENSION_LIST(DEFINE_EXTENSION_ID)
kMaxExtensions
};
#undef DEFINE_EXTENSION_ID
typedef v8::internal::EnumSet<CcTestExtensionIds> CcTestExtensionFlags;
#define DEFINE_EXTENSION_FLAG(Name, Ident) \
static const CcTestExtensionFlags Name(1 << Name##_ID);
static const CcTestExtensionFlags NO_EXTENSIONS(0);
static const CcTestExtensionFlags ALL_EXTENSIONS((1 << kMaxExtensions) - 1);
EXTENSION_LIST(DEFINE_EXTENSION_FLAG)
#undef DEFINE_EXTENSION_FLAG
class CcTest {
public:
typedef void (TestFunction)();
CcTest(TestFunction* callback, const char* file, const char* name,
bool enabled, bool initialize);
~CcTest() { i::DeleteArray(file_); }
void Run();
static CcTest* last() { return last_; }
CcTest* prev() { return prev_; }
const char* file() { return file_; }
const char* name() { return name_; }
bool enabled() { return enabled_; }
static v8::Isolate* isolate() {
CHECK_NOT_NULL(isolate_);
v8::base::Relaxed_Store(&isolate_used_, 1);
return isolate_;
}
static i::Isolate* InitIsolateOnce() {
if (!initialize_called_) InitializeVM();
return i_isolate();
}
static i::Isolate* i_isolate() {
return reinterpret_cast<i::Isolate*>(isolate());
}
static i::Heap* heap();
static void CollectGarbage(i::AllocationSpace space);
static void CollectAllGarbage();
static void CollectAllGarbage(int flags);
static void CollectAllAvailableGarbage();
static v8::base::RandomNumberGenerator* random_number_generator();
static v8::Local<v8::Object> global();
static v8::ArrayBuffer::Allocator* array_buffer_allocator() {
return allocator_;
}
static void set_array_buffer_allocator(
v8::ArrayBuffer::Allocator* allocator) {
allocator_ = allocator;
}
// TODO(dcarney): Remove.
// This must be called first in a test.
static void InitializeVM();
// Only for UNINITIALIZED_TESTs
static void DisableAutomaticDispose();
// Helper function to configure a context.
// Must be in a HandleScope.
static v8::Local<v8::Context> NewContext(
CcTestExtensionFlags extensions,
v8::Isolate* isolate = CcTest::isolate());
static void TearDown();
private:
friend int main(int argc, char** argv);
TestFunction* callback_;
const char* file_;
const char* name_;
bool enabled_;
bool initialize_;
CcTest* prev_;
static CcTest* last_;
static v8::ArrayBuffer::Allocator* allocator_;
static v8::Isolate* isolate_;
static bool initialize_called_;
static v8::base::Atomic32 isolate_used_;
};
// Switches between all the Api tests using the threading support.
// In order to get a surprising but repeatable pattern of thread
// switching it has extra semaphores to control the order in which
// the tests alternate, not relying solely on the big V8 lock.
//
// A test is augmented with calls to ApiTestFuzzer::Fuzz() in its
// callbacks. This will have no effect when we are not running the
// thread fuzzing test. In the thread fuzzing test it will
// pseudorandomly select a successor thread and switch execution
// to that thread, suspending the current test.
class ApiTestFuzzer: public v8::base::Thread {
public:
void CallTest();
// The ApiTestFuzzer is also a Thread, so it has a Run method.
virtual void Run();
enum PartOfTest {
FIRST_PART,
SECOND_PART,
THIRD_PART,
FOURTH_PART,
FIFTH_PART,
SIXTH_PART,
SEVENTH_PART,
EIGHTH_PART,
LAST_PART = EIGHTH_PART
};
static void SetUp(PartOfTest part);
static void RunAllTests();
static void TearDown();
// This method switches threads if we are running the Threading test.
// Otherwise it does nothing.
static void Fuzz();
private:
explicit ApiTestFuzzer(int num)
: Thread(Options("ApiTestFuzzer")),
test_number_(num),
gate_(0),
active_(true) {}
~ApiTestFuzzer() {}
static bool fuzzing_;
static int tests_being_run_;
static int current_;
static int active_tests_;
static bool NextThread();
int test_number_;
v8::base::Semaphore gate_;
bool active_;
void ContextSwitch();
static int GetNextTestNumber();
static v8::base::Semaphore all_tests_done_;
};
#define THREADED_TEST(Name) \
static void Test##Name(); \
RegisterThreadedTest register_##Name(Test##Name, #Name); \
/* */ TEST(Name)
class RegisterThreadedTest {
public:
explicit RegisterThreadedTest(CcTest::TestFunction* callback,
const char* name)
: fuzzer_(nullptr), callback_(callback), name_(name) {
prev_ = first_;
first_ = this;
count_++;
}
static int count() { return count_; }
static RegisterThreadedTest* nth(int i) {
CHECK(i < count());
RegisterThreadedTest* current = first_;
while (i > 0) {
i--;
current = current->prev_;
}
return current;
}
CcTest::TestFunction* callback() { return callback_; }
ApiTestFuzzer* fuzzer_;
const char* name() { return name_; }
private:
static RegisterThreadedTest* first_;
static int count_;
CcTest::TestFunction* callback_;
RegisterThreadedTest* prev_;
const char* name_;
};
// A LocalContext holds a reference to a v8::Context.
class LocalContext {
public:
LocalContext(v8::Isolate* isolate, v8::ExtensionConfiguration* extensions = 0,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>()) {
Initialize(isolate, extensions, global_template, global_object);
}
LocalContext(v8::ExtensionConfiguration* extensions = 0,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>()) {
Initialize(CcTest::isolate(), extensions, global_template, global_object);
}
virtual ~LocalContext();
v8::Context* operator->() {
return *reinterpret_cast<v8::Context**>(&context_);
}
v8::Context* operator*() { return operator->(); }
bool IsReady() { return !context_.IsEmpty(); }
v8::Local<v8::Context> local() {
return v8::Local<v8::Context>::New(isolate_, context_);
}
private:
void Initialize(v8::Isolate* isolate, v8::ExtensionConfiguration* extensions,
v8::Local<v8::ObjectTemplate> global_template,
v8::Local<v8::Value> global_object);
v8::Persistent<v8::Context> context_;
v8::Isolate* isolate_;
};
static inline uint16_t* AsciiToTwoByteString(const char* source) {
int array_length = i::StrLength(source) + 1;
uint16_t* converted = i::NewArray<uint16_t>(array_length);
for (int i = 0; i < array_length; i++) converted[i] = source[i];
return converted;
}
template <typename T>
static inline i::Handle<T> GetGlobal(const char* name) {
i::Isolate* isolate = CcTest::i_isolate();
i::Handle<i::String> str_name =
isolate->factory()->InternalizeUtf8String(name);
i::Handle<i::Object> value =
i::Object::GetProperty(isolate->global_object(), str_name)
.ToHandleChecked();
return i::Handle<T>::cast(value);
}
static inline v8::Local<v8::Value> v8_num(double x) {
return v8::Number::New(v8::Isolate::GetCurrent(), x);
}
static inline v8::Local<v8::Integer> v8_int(int32_t x) {
return v8::Integer::New(v8::Isolate::GetCurrent(), x);
}
static inline v8::Local<v8::String> v8_str(const char* x) {
return v8::String::NewFromUtf8(v8::Isolate::GetCurrent(), x,
v8::NewStringType::kNormal)
.ToLocalChecked();
}
static inline v8::Local<v8::String> v8_str(v8::Isolate* isolate,
const char* x) {
return v8::String::NewFromUtf8(isolate, x, v8::NewStringType::kNormal)
.ToLocalChecked();
}
static inline v8::Local<v8::Symbol> v8_symbol(const char* name) {
return v8::Symbol::New(v8::Isolate::GetCurrent(), v8_str(name));
}
static inline v8::Local<v8::Script> v8_compile(v8::Local<v8::String> x) {
v8::Local<v8::Script> result;
if (v8::Script::Compile(v8::Isolate::GetCurrent()->GetCurrentContext(), x)
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Script>();
}
static inline v8::Local<v8::Script> v8_compile(const char* x) {
return v8_compile(v8_str(x));
}
static inline int32_t v8_run_int32value(v8::Local<v8::Script> script) {
v8::Local<v8::Context> context = CcTest::isolate()->GetCurrentContext();
return script->Run(context).ToLocalChecked()->Int32Value(context).FromJust();
}
static inline v8::Local<v8::Script> CompileWithOrigin(
v8::Local<v8::String> source, v8::Local<v8::String> origin_url) {
v8::ScriptOrigin origin(origin_url);
v8::ScriptCompiler::Source script_source(source, origin);
return v8::ScriptCompiler::Compile(
v8::Isolate::GetCurrent()->GetCurrentContext(), &script_source)
.ToLocalChecked();
}
static inline v8::Local<v8::Script> CompileWithOrigin(
v8::Local<v8::String> source, const char* origin_url) {
return CompileWithOrigin(source, v8_str(origin_url));
}
static inline v8::Local<v8::Script> CompileWithOrigin(const char* source,
const char* origin_url) {
return CompileWithOrigin(v8_str(source), v8_str(origin_url));
}
// Helper functions that compile and run the source.
static inline v8::MaybeLocal<v8::Value> CompileRun(
v8::Local<v8::Context> context, const char* source) {
return v8::Script::Compile(context, v8_str(source))
.ToLocalChecked()
->Run(context);
}
static inline v8::Local<v8::Value> CompileRunChecked(v8::Isolate* isolate,
const char* source) {
v8::Local<v8::String> source_string =
v8::String::NewFromUtf8(isolate, source, v8::NewStringType::kNormal)
.ToLocalChecked();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::Local<v8::Script> script =
v8::Script::Compile(context, source_string).ToLocalChecked();
return script->Run(context).ToLocalChecked();
}
static inline v8::Local<v8::Value> CompileRun(v8::Local<v8::String> source) {
v8::Local<v8::Value> result;
if (v8_compile(source)
->Run(v8::Isolate::GetCurrent()->GetCurrentContext())
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Value>();
}
// Helper functions that compile and run the source.
static inline v8::Local<v8::Value> CompileRun(const char* source) {
return CompileRun(v8_str(source));
}
static inline v8::Local<v8::Value> CompileRun(
v8::Local<v8::Context> context, v8::ScriptCompiler::Source* script_source,
v8::ScriptCompiler::CompileOptions options) {
v8::Local<v8::Value> result;
if (v8::ScriptCompiler::Compile(context, script_source, options)
.ToLocalChecked()
->Run(context)
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Value>();
}
// Helper functions that compile and run the source with given origin.
static inline v8::Local<v8::Value> CompileRunWithOrigin(const char* source,
const char* origin_url,
int line_number,
int column_number) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::ScriptOrigin origin(v8_str(origin_url),
v8::Integer::New(isolate, line_number),
v8::Integer::New(isolate, column_number));
v8::ScriptCompiler::Source script_source(v8_str(source), origin);
return CompileRun(context, &script_source,
v8::ScriptCompiler::CompileOptions());
}
static inline v8::Local<v8::Value> CompileRunWithOrigin(
v8::Local<v8::String> source, const char* origin_url) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::ScriptCompiler::Source script_source(
source, v8::ScriptOrigin(v8_str(origin_url)));
return CompileRun(context, &script_source,
v8::ScriptCompiler::CompileOptions());
}
static inline v8::Local<v8::Value> CompileRunWithOrigin(
const char* source, const char* origin_url) {
return CompileRunWithOrigin(v8_str(source), origin_url);
}
static inline void ExpectString(const char* code, const char* expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsString());
v8::String::Utf8Value utf8(v8::Isolate::GetCurrent(), result);
CHECK_EQ(0, strcmp(expected, *utf8));
}
static inline void ExpectInt32(const char* code, int expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsInt32());
CHECK_EQ(expected,
result->Int32Value(v8::Isolate::GetCurrent()->GetCurrentContext())
.FromJust());
}
static inline void ExpectBoolean(const char* code, bool expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsBoolean());
CHECK_EQ(expected,
result->BooleanValue(v8::Isolate::GetCurrent()->GetCurrentContext())
.FromJust());
}
static inline void ExpectTrue(const char* code) {
ExpectBoolean(code, true);
}
static inline void ExpectFalse(const char* code) {
ExpectBoolean(code, false);
}
static inline void ExpectObject(const char* code,
v8::Local<v8::Value> expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->SameValue(expected));
}
static inline void ExpectUndefined(const char* code) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsUndefined());
}
static inline void ExpectNull(const char* code) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsNull());
}
static inline void CheckDoubleEquals(double expected, double actual) {
const double kEpsilon = 1e-10;
CHECK_LE(expected, actual + kEpsilon);
CHECK_GE(expected, actual - kEpsilon);
}
static inline uint8_t* AllocateAssemblerBuffer(
size_t* allocated,
size_t requested = v8::internal::AssemblerBase::kMinimalBufferSize) {
size_t page_size = v8::internal::AllocatePageSize();
size_t alloc_size = RoundUp(requested, page_size);
void* result = v8::internal::AllocatePages(
nullptr, alloc_size, page_size, v8::PageAllocator::kReadWriteExecute);
CHECK(result);
*allocated = alloc_size;
return static_cast<uint8_t*>(result);
}
static inline void MakeAssemblerBufferExecutable(uint8_t* buffer,
size_t allocated) {
bool result = v8::internal::SetPermissions(buffer, allocated,
v8::PageAllocator::kReadExecute);
CHECK(result);
}
static v8::debug::DebugDelegate dummy_delegate;
static inline void EnableDebugger(v8::Isolate* isolate) {
v8::debug::SetDebugDelegate(isolate, &dummy_delegate);
}
static inline void DisableDebugger(v8::Isolate* isolate) {
v8::debug::SetDebugDelegate(isolate, nullptr);
}
static inline void EmptyMessageQueues(v8::Isolate* isolate) {
while (v8::platform::PumpMessageLoop(v8::internal::V8::GetCurrentPlatform(),
isolate)) {
}
}
class InitializedHandleScopeImpl;
class InitializedHandleScope {
public:
InitializedHandleScope();
~InitializedHandleScope();
// Prefixing the below with main_ reduces a lot of naming clashes.
i::Isolate* main_isolate() { return main_isolate_; }
private:
i::Isolate* main_isolate_;
std::unique_ptr<InitializedHandleScopeImpl> initialized_handle_scope_impl_;
};
class HandleAndZoneScope : public InitializedHandleScope {
public:
HandleAndZoneScope();
~HandleAndZoneScope();
// Prefixing the below with main_ reduces a lot of naming clashes.
i::Zone* main_zone() { return main_zone_.get(); }
private:
v8::internal::AccountingAllocator allocator_;
std::unique_ptr<i::Zone> main_zone_;
};
class StaticOneByteResource : public v8::String::ExternalOneByteStringResource {
public:
explicit StaticOneByteResource(const char* data) : data_(data) {}
~StaticOneByteResource() {}
const char* data() const { return data_; }
size_t length() const { return strlen(data_); }
private:
const char* data_;
};
class ManualGCScope {
public:
ManualGCScope()
: flag_concurrent_marking_(i::FLAG_concurrent_marking),
flag_concurrent_sweeping_(i::FLAG_concurrent_sweeping),
flag_stress_incremental_marking_(i::FLAG_stress_incremental_marking),
flag_parallel_marking_(i::FLAG_parallel_marking) {
i::FLAG_concurrent_marking = false;
i::FLAG_concurrent_sweeping = false;
i::FLAG_stress_incremental_marking = false;
// Parallel marking has a dependency on concurrent marking.
i::FLAG_parallel_marking = false;
}
~ManualGCScope() {
i::FLAG_concurrent_marking = flag_concurrent_marking_;
i::FLAG_concurrent_sweeping = flag_concurrent_sweeping_;
i::FLAG_stress_incremental_marking = flag_stress_incremental_marking_;
i::FLAG_parallel_marking = flag_parallel_marking_;
}
private:
bool flag_concurrent_marking_;
bool flag_concurrent_sweeping_;
bool flag_stress_incremental_marking_;
bool flag_parallel_marking_;
};
// This is an abstract base class that can be overridden to implement a test
// platform. It delegates all operations to a given platform at the time
// of construction.
class TestPlatform : public v8::Platform {
public:
// v8::Platform implementation.
v8::PageAllocator* GetPageAllocator() override {
return old_platform_->GetPageAllocator();
}
void OnCriticalMemoryPressure() override {
old_platform_->OnCriticalMemoryPressure();
}
bool OnCriticalMemoryPressure(size_t length) override {
return old_platform_->OnCriticalMemoryPressure(length);
}
std::shared_ptr<v8::TaskRunner> GetForegroundTaskRunner(
v8::Isolate* isolate) override {
return old_platform_->GetForegroundTaskRunner(isolate);
}
std::shared_ptr<v8::TaskRunner> GetWorkerThreadsTaskRunner(
v8::Isolate* isolate) override {
return old_platform_->GetWorkerThreadsTaskRunner(isolate);
}
void CallOnWorkerThread(v8::Task* task) override {
old_platform_->CallOnWorkerThread(task);
}
void CallOnForegroundThread(v8::Isolate* isolate, v8::Task* task) override {
old_platform_->CallOnForegroundThread(isolate, task);
}
void CallDelayedOnForegroundThread(v8::Isolate* isolate, v8::Task* task,
double delay_in_seconds) override {
old_platform_->CallDelayedOnForegroundThread(isolate, task,
delay_in_seconds);
}
double MonotonicallyIncreasingTime() override {
return old_platform_->MonotonicallyIncreasingTime();
}
double CurrentClockTimeMillis() override {
return old_platform_->CurrentClockTimeMillis();
}
void CallIdleOnForegroundThread(v8::Isolate* isolate,
v8::IdleTask* task) override {
old_platform_->CallIdleOnForegroundThread(isolate, task);
}
bool IdleTasksEnabled(v8::Isolate* isolate) override {
return old_platform_->IdleTasksEnabled(isolate);
}
v8::TracingController* GetTracingController() override {
return old_platform_->GetTracingController();
}
protected:
TestPlatform() : old_platform_(i::V8::GetCurrentPlatform()) {}
~TestPlatform() { i::V8::SetPlatformForTesting(old_platform_); }
v8::Platform* old_platform() const { return old_platform_; }
private:
v8::Platform* old_platform_;
DISALLOW_COPY_AND_ASSIGN(TestPlatform);
};
#endif // ifndef CCTEST_H_
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