Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	node_main_instance.cc	Lines:	96	97	99.0 %
Date:	2022-05-21 04:15:56	Branches:	42	52	80.8 %


#include "node_main_instance.h"
#include <memory>
#if HAVE_OPENSSL
#include "crypto/crypto_util.h"
#endif  // HAVE_OPENSSL
#include "debug_utils-inl.h"
#include "node_external_reference.h"
#include "node_internals.h"
#include "node_native_module_env.h"
#include "node_options-inl.h"
#include "node_snapshot_builder.h"
#include "node_snapshotable.h"
#include "node_v8_platform-inl.h"
#include "util-inl.h"
#if defined(LEAK_SANITIZER)
#include <sanitizer/lsan_interface.h>
#endif

#if HAVE_INSPECTOR
#include "inspector/worker_inspector.h"  // ParentInspectorHandle
#endif

namespace node {

using v8::Context;
using v8::HandleScope;
using v8::Isolate;
using v8::Local;
using v8::Locker;

NodeMainInstance::NodeMainInstance(Isolate* isolate,
                                   uv_loop_t* event_loop,
                                   MultiIsolatePlatform* platform,
                                   const std::vector<std::string>& args,
                                   const std::vector<std::string>& exec_args)
    : args_(args),
      exec_args_(exec_args),
      array_buffer_allocator_(nullptr),
      isolate_(isolate),
      platform_(platform),
      isolate_data_(nullptr),
      snapshot_data_(nullptr) {
  isolate_data_ =
      std::make_unique<IsolateData>(isolate_, event_loop, platform, nullptr);

  SetIsolateMiscHandlers(isolate_, {});
}

std::unique_ptr<NodeMainInstance> NodeMainInstance::Create(
    Isolate* isolate,
    uv_loop_t* event_loop,
    MultiIsolatePlatform* platform,
    const std::vector<std::string>& args,
    const std::vector<std::string>& exec_args) {
  return std::unique_ptr<NodeMainInstance>(
      new NodeMainInstance(isolate, event_loop, platform, args, exec_args));
}

NodeMainInstance::NodeMainInstance(const SnapshotData* snapshot_data,
                                   uv_loop_t* event_loop,
                                   MultiIsolatePlatform* platform,
                                   const std::vector<std::string>& args,
                                   const std::vector<std::string>& exec_args)
    : args_(args),
      exec_args_(exec_args),
      array_buffer_allocator_(ArrayBufferAllocator::Create()),
      isolate_(nullptr),
      platform_(platform),
      isolate_data_(),
      isolate_params_(std::make_unique<Isolate::CreateParams>()),
      snapshot_data_(snapshot_data) {
  isolate_params_->array_buffer_allocator = array_buffer_allocator_.get();
  if (snapshot_data != nullptr) {
    SnapshotBuilder::InitializeIsolateParams(snapshot_data,
                                             isolate_params_.get());
  }

  isolate_ = Isolate::Allocate();
  CHECK_NOT_NULL(isolate_);
  // Register the isolate on the platform before the isolate gets initialized,
  // so that the isolate can access the platform during initialization.
  platform->RegisterIsolate(isolate_, event_loop);
  SetIsolateCreateParamsForNode(isolate_params_.get());
  Isolate::Initialize(isolate_, *isolate_params_);

  // If the indexes are not nullptr, we are not deserializing
  isolate_data_ = std::make_unique<IsolateData>(
      isolate_,
      event_loop,
      platform,
      array_buffer_allocator_.get(),
      snapshot_data == nullptr ? nullptr
                               : &(snapshot_data->isolate_data_indices));
  IsolateSettings s;
  SetIsolateMiscHandlers(isolate_, s);
  if (snapshot_data == nullptr) {
    // If in deserialize mode, delay until after the deserialization is
    // complete.
    SetIsolateErrorHandlers(isolate_, s);
  }
  isolate_data_->max_young_gen_size =
      isolate_params_->constraints.max_young_generation_size_in_bytes();
}

void NodeMainInstance::Dispose() {
  // This should only be called on a main instance that does not own its
  // isolate.
  CHECK_NULL(isolate_params_);
  platform_->DrainTasks(isolate_);
}

NodeMainInstance::~NodeMainInstance() {
  if (isolate_params_ == nullptr) {
    return;
  }
  // This should only be done on a main instance that owns its isolate.
  platform_->UnregisterIsolate(isolate_);
  isolate_->Dispose();
}

int NodeMainInstance::Run() {
  Locker locker(isolate_);
  Isolate::Scope isolate_scope(isolate_);
  HandleScope handle_scope(isolate_);

  int exit_code = 0;
  DeleteFnPtr<Environment, FreeEnvironment> env =
      CreateMainEnvironment(&exit_code);
  CHECK_NOT_NULL(env);

  Context::Scope context_scope(env->context());
  Run(&exit_code, env.get());
  return exit_code;
}

void NodeMainInstance::Run(int* exit_code, Environment* env) {
  if (*exit_code == 0) {
    LoadEnvironment(env, StartExecutionCallback{});

    *exit_code = SpinEventLoop(env).FromMaybe(1);
  }

  ResetStdio();

  // TODO(addaleax): Neither NODE_SHARED_MODE nor HAVE_INSPECTOR really
  // make sense here.
#if HAVE_INSPECTOR && defined(__POSIX__) && !defined(NODE_SHARED_MODE)
  struct sigaction act;
  memset(&act, 0, sizeof(act));
  for (unsigned nr = 1; nr < kMaxSignal; nr += 1) {
    if (nr == SIGKILL || nr == SIGSTOP || nr == SIGPROF)
      continue;
    act.sa_handler = (nr == SIGPIPE) ? SIG_IGN : SIG_DFL;
    CHECK_EQ(0, sigaction(nr, &act, nullptr));
  }
#endif

#if defined(LEAK_SANITIZER)
  __lsan_do_leak_check();
#endif
}

DeleteFnPtr<Environment, FreeEnvironment>
NodeMainInstance::CreateMainEnvironment(int* exit_code) {
  *exit_code = 0;  // Reset the exit code to 0

  HandleScope handle_scope(isolate_);

  // TODO(addaleax): This should load a real per-Isolate option, currently
  // this is still effectively per-process.
  if (isolate_data_->options()->track_heap_objects) {
    isolate_->GetHeapProfiler()->StartTrackingHeapObjects(true);
  }

  Local<Context> context;
  DeleteFnPtr<Environment, FreeEnvironment> env;

  if (snapshot_data_ != nullptr) {
    env.reset(new Environment(isolate_data_.get(),
                              isolate_,
                              args_,
                              exec_args_,
                              &(snapshot_data_->env_info),
                              EnvironmentFlags::kDefaultFlags,
                              {}));
    context = Context::FromSnapshot(isolate_,
                                    SnapshotData::kNodeMainContextIndex,
                                    {DeserializeNodeInternalFields, env.get()})
                  .ToLocalChecked();

    CHECK(!context.IsEmpty());
    Context::Scope context_scope(context);

    CHECK(InitializeContextRuntime(context).IsJust());
    SetIsolateErrorHandlers(isolate_, {});
    env->InitializeMainContext(context, &(snapshot_data_->env_info));
#if HAVE_INSPECTOR
    env->InitializeInspector({});
#endif
    env->DoneBootstrapping();

#if HAVE_OPENSSL
    crypto::InitCryptoOnce(isolate_);
#endif  // HAVE_OPENSSL
  } else {
    context = NewContext(isolate_);
    CHECK(!context.IsEmpty());
    Context::Scope context_scope(context);
    env.reset(new Environment(isolate_data_.get(),
                              context,
                              args_,
                              exec_args_,
                              nullptr,
                              EnvironmentFlags::kDefaultFlags,
                              {}));
#if HAVE_INSPECTOR
    env->InitializeInspector({});
#endif
    if (env->RunBootstrapping().IsEmpty()) {
      return nullptr;
    }
  }

  return env;
}

}  // namespace node


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#include "node_main_instance.h"
2			#include <memory>
3			#if HAVE_OPENSSL
4			#include "crypto/crypto_util.h"
5			#endif // HAVE_OPENSSL
6			#include "debug_utils-inl.h"
7			#include "node_external_reference.h"
8			#include "node_internals.h"
9			#include "node_native_module_env.h"
10			#include "node_options-inl.h"
11			#include "node_snapshot_builder.h"
12			#include "node_snapshotable.h"
13			#include "node_v8_platform-inl.h"
14			#include "util-inl.h"
15			#if defined(LEAK_SANITIZER)
16			#include <sanitizer/lsan_interface.h>
17			#endif
18
19			#if HAVE_INSPECTOR
20			#include "inspector/worker_inspector.h" // ParentInspectorHandle
21			#endif
22
23			namespace node {
24
25			using v8::Context;
26			using v8::HandleScope;
27			using v8::Isolate;
28			using v8::Local;
29			using v8::Locker;
30
31		6	NodeMainInstance::NodeMainInstance(Isolate* isolate,
32			uv_loop_t* event_loop,
33			MultiIsolatePlatform* platform,
34			const std::vector<std::string>& args,
35		6	const std::vector<std::string>& exec_args)
36			: args_(args),
37			exec_args_(exec_args),
38			array_buffer_allocator_(nullptr),
39			isolate_(isolate),
40			platform_(platform),
41			isolate_data_(nullptr),
42		6	snapshot_data_(nullptr) {
43			isolate_data_ =
44		6	std::make_unique<IsolateData>(isolate_, event_loop, platform, nullptr);
45
46		6	SetIsolateMiscHandlers(isolate_, {});
47		6	}
48
49		6	std::unique_ptr<NodeMainInstance> NodeMainInstance::Create(
50			Isolate* isolate,
51			uv_loop_t* event_loop,
52			MultiIsolatePlatform* platform,
53			const std::vector<std::string>& args,
54			const std::vector<std::string>& exec_args) {
55			return std::unique_ptr<NodeMainInstance>(
56		6	new NodeMainInstance(isolate, event_loop, platform, args, exec_args));
57			}
58
59		5180	NodeMainInstance::NodeMainInstance(const SnapshotData* snapshot_data,
60			uv_loop_t* event_loop,
61			MultiIsolatePlatform* platform,
62			const std::vector<std::string>& args,
63		5180	const std::vector<std::string>& exec_args)
64			: args_(args),
65			exec_args_(exec_args),
66			array_buffer_allocator_(ArrayBufferAllocator::Create()),
67			isolate_(nullptr),
68			platform_(platform),
69			isolate_data_(),
70			isolate_params_(std::make_unique<Isolate::CreateParams>()),
71		5180	snapshot_data_(snapshot_data) {
72		5180	isolate_params_->array_buffer_allocator = array_buffer_allocator_.get();
73	✓✓	5180	if (snapshot_data != nullptr) {
74		5178	SnapshotBuilder::InitializeIsolateParams(snapshot_data,
75			isolate_params_.get());
76			}
77
78		5180	isolate_ = Isolate::Allocate();
79	✗✓	5180	CHECK_NOT_NULL(isolate_);
80			// Register the isolate on the platform before the isolate gets initialized,
81			// so that the isolate can access the platform during initialization.
82		5180	platform->RegisterIsolate(isolate_, event_loop);
83		5180	SetIsolateCreateParamsForNode(isolate_params_.get());
84		5180	Isolate::Initialize(isolate_, *isolate_params_);
85
86			// If the indexes are not nullptr, we are not deserializing
87		5180	isolate_data_ = std::make_unique<IsolateData>(
88		5180	isolate_,
89			event_loop,
90			platform,
91		5180	array_buffer_allocator_.get(),
92	✓✓	5180	snapshot_data == nullptr ? nullptr
93		5180	: &(snapshot_data->isolate_data_indices));
94		5180	IsolateSettings s;
95		5180	SetIsolateMiscHandlers(isolate_, s);
96	✓✓	5180	if (snapshot_data == nullptr) {
97			// If in deserialize mode, delay until after the deserialization is
98			// complete.
99		2	SetIsolateErrorHandlers(isolate_, s);
100			}
101		5180	isolate_data_->max_young_gen_size =
102		5180	isolate_params_->constraints.max_young_generation_size_in_bytes();
103		5180	}
104
105		6	void NodeMainInstance::Dispose() {
106			// This should only be called on a main instance that does not own its
107			// isolate.
108	✗✓	6	CHECK_NULL(isolate_params_);
109		6	platform_->DrainTasks(isolate_);
110		6	}
111
112	✓✓✓✓ ✓✓✓✓ ✓✓	4704	NodeMainInstance::~NodeMainInstance() {
113	✓✓	4680	if (isolate_params_ == nullptr) {
114		6	return;
115			}
116			// This should only be done on a main instance that owns its isolate.
117		4674	platform_->UnregisterIsolate(isolate_);
118		4674	isolate_->Dispose();
119		4680	}
120
121		5180	int NodeMainInstance::Run() {
122		9854	Locker locker(isolate_);
123		9854	Isolate::Scope isolate_scope(isolate_);
124		9854	HandleScope handle_scope(isolate_);
125
126		5180	int exit_code = 0;
127			DeleteFnPtr<Environment, FreeEnvironment> env =
128		9854	CreateMainEnvironment(&exit_code);
129	✗✓	5180	CHECK_NOT_NULL(env);
130
131		5180	Context::Scope context_scope(env->context());
132		5180	Run(&exit_code, env.get());
133		4674	return exit_code;
134			}
135
136		5180	void NodeMainInstance::Run(int* exit_code, Environment* env) {
137	✓✗	5180	if (*exit_code == 0) {
138		5180	LoadEnvironment(env, StartExecutionCallback{});
139
140	✓✗	9564	*exit_code = SpinEventLoop(env).FromMaybe(1);
141			}
142
143		4674	ResetStdio();
144
145			// TODO(addaleax): Neither NODE_SHARED_MODE nor HAVE_INSPECTOR really
146			// make sense here.
147			#if HAVE_INSPECTOR && defined(__POSIX__) && !defined(NODE_SHARED_MODE)
148			struct sigaction act;
149		4674	memset(&act, 0, sizeof(act));
150	✓✓	149568	for (unsigned nr = 1; nr < kMaxSignal; nr += 1) {
151	✓✓✓✓ ✓✓	144894	if (nr == SIGKILL \|\| nr == SIGSTOP \|\| nr == SIGPROF)
152		14022	continue;
153	✓✓	130872	act.sa_handler = (nr == SIGPIPE) ? SIG_IGN : SIG_DFL;
154	✗✓	130872	CHECK_EQ(0, sigaction(nr, &act, nullptr));
155			}
156			#endif
157
158			#if defined(LEAK_SANITIZER)
159			__lsan_do_leak_check();
160			#endif
161		4674	}
162
163			DeleteFnPtr<Environment, FreeEnvironment>
164		5180	NodeMainInstance::CreateMainEnvironment(int* exit_code) {
165		5180	*exit_code = 0; // Reset the exit code to 0
166
167		10360	HandleScope handle_scope(isolate_);
168
169			// TODO(addaleax): This should load a real per-Isolate option, currently
170			// this is still effectively per-process.
171	✓✓	5180	if (isolate_data_->options()->track_heap_objects) {
172		1	isolate_->GetHeapProfiler()->StartTrackingHeapObjects(true);
173			}
174
175			Local<Context> context;
176		5180	DeleteFnPtr<Environment, FreeEnvironment> env;
177
178	✓✓	5180	if (snapshot_data_ != nullptr) {
179		10356	env.reset(new Environment(isolate_data_.get(),
180			isolate_,
181		5178	args_,
182		5178	exec_args_,
183		5178	&(snapshot_data_->env_info),
184			EnvironmentFlags::kDefaultFlags,
185		5178	{}));
186		5178	context = Context::FromSnapshot(isolate_,
187			SnapshotData::kNodeMainContextIndex,
188		5178	{DeserializeNodeInternalFields, env.get()})
189		5178	.ToLocalChecked();
190
191	✗✓	5178	CHECK(!context.IsEmpty());
192		5178	Context::Scope context_scope(context);
193
194	✗✓	10356	CHECK(InitializeContextRuntime(context).IsJust());
195		5178	SetIsolateErrorHandlers(isolate_, {});
196		5178	env->InitializeMainContext(context, &(snapshot_data_->env_info));
197			#if HAVE_INSPECTOR
198		5178	env->InitializeInspector({});
199			#endif
200		5178	env->DoneBootstrapping();
201
202			#if HAVE_OPENSSL
203		5178	crypto::InitCryptoOnce(isolate_);
204			#endif // HAVE_OPENSSL
205			} else {
206		2	context = NewContext(isolate_);
207	✗✓	2	CHECK(!context.IsEmpty());
208		2	Context::Scope context_scope(context);
209		4	env.reset(new Environment(isolate_data_.get(),
210			context,
211		2	args_,
212		2	exec_args_,
213			nullptr,
214			EnvironmentFlags::kDefaultFlags,
215		2	{}));
216			#if HAVE_INSPECTOR
217		2	env->InitializeInspector({});
218			#endif
219	✗✓	4	if (env->RunBootstrapping().IsEmpty()) {
220			return nullptr;
221			}
222			}
223
224		5180	return env;
225			}
226
227			} // namespace node