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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	node_main_instance.cc	Lines:	100	101	99.0 %
Date:	2021-12-25 04:14:02	Branches:	45	58	77.6 %


#include "node_main_instance.h"
#include <memory>
#include "debug_utils-inl.h"
#include "node_external_reference.h"
#include "node_internals.h"
#include "node_options-inl.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;

std::unique_ptr<ExternalReferenceRegistry> NodeMainInstance::registry_ =
    nullptr;
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),
      owns_isolate_(false),
      deserialize_mode_(false) {
  isolate_data_ =
      std::make_unique<IsolateData>(isolate_, event_loop, platform, nullptr);

  SetIsolateMiscHandlers(isolate_, {});
}

const std::vector<intptr_t>& NodeMainInstance::CollectExternalReferences() {
  // Cannot be called more than once.
  CHECK_NULL(registry_);
  registry_.reset(new ExternalReferenceRegistry());
  return registry_->external_references();
}

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(
    Isolate::CreateParams* params,
    uv_loop_t* event_loop,
    MultiIsolatePlatform* platform,
    const std::vector<std::string>& args,
    const std::vector<std::string>& exec_args,
    const std::vector<size_t>* per_isolate_data_indexes)
    : args_(args),
      exec_args_(exec_args),
      array_buffer_allocator_(ArrayBufferAllocator::Create()),
      isolate_(nullptr),
      platform_(platform),
      isolate_data_(nullptr),
      owns_isolate_(true) {
  params->array_buffer_allocator = array_buffer_allocator_.get();
  deserialize_mode_ = per_isolate_data_indexes != nullptr;
  if (deserialize_mode_) {
    // TODO(joyeecheung): collect external references and set it in
    // params.external_references.
    const std::vector<intptr_t>& external_references =
        CollectExternalReferences();
    params->external_references = external_references.data();
  }

  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(params);
  Isolate::Initialize(isolate_, *params);

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

void NodeMainInstance::Dispose() {
  CHECK(!owns_isolate_);
  platform_->DrainTasks(isolate_);
}

NodeMainInstance::~NodeMainInstance() {
  if (!owns_isolate_) {
    return;
  }
  platform_->UnregisterIsolate(isolate_);
  isolate_->Dispose();
}

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

  int exit_code = 0;
  DeleteFnPtr<Environment, FreeEnvironment> env =
      CreateMainEnvironment(&exit_code, env_info);
  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,
                                        const EnvSerializeInfo* env_info) {
  *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);
  }

  CHECK_IMPLIES(deserialize_mode_, env_info != nullptr);
  Local<Context> context;
  DeleteFnPtr<Environment, FreeEnvironment> env;

  if (deserialize_mode_) {
    env.reset(new Environment(isolate_data_.get(),
                              isolate_,
                              args_,
                              exec_args_,
                              env_info,
                              EnvironmentFlags::kDefaultFlags,
                              {}));
    context = Context::FromSnapshot(isolate_,
                                    kNodeContextIndex,
                                    {DeserializeNodeInternalFields, env.get()})
                  .ToLocalChecked();

    CHECK(!context.IsEmpty());
    Context::Scope context_scope(context);
    CHECK(InitializeContextRuntime(context).IsJust());
    SetIsolateErrorHandlers(isolate_, {});
    env->InitializeMainContext(context, env_info);
#if HAVE_INSPECTOR
    env->InitializeInspector({});
#endif
    env->DoneBootstrapping();
  } 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			#include "debug_utils-inl.h"
4			#include "node_external_reference.h"
5			#include "node_internals.h"
6			#include "node_options-inl.h"
7			#include "node_snapshotable.h"
8			#include "node_v8_platform-inl.h"
9			#include "util-inl.h"
10			#if defined(LEAK_SANITIZER)
11			#include <sanitizer/lsan_interface.h>
12			#endif
13
14			#if HAVE_INSPECTOR
15			#include "inspector/worker_inspector.h" // ParentInspectorHandle
16			#endif
17
18			namespace node {
19
20			using v8::Context;
21			using v8::HandleScope;
22			using v8::Isolate;
23			using v8::Local;
24			using v8::Locker;
25
26			std::unique_ptr<ExternalReferenceRegistry> NodeMainInstance::registry_ =
27			nullptr;
28		6	NodeMainInstance::NodeMainInstance(Isolate* isolate,
29			uv_loop_t* event_loop,
30			MultiIsolatePlatform* platform,
31			const std::vector<std::string>& args,
32		6	const std::vector<std::string>& exec_args)
33			: args_(args),
34			exec_args_(exec_args),
35			array_buffer_allocator_(nullptr),
36			isolate_(isolate),
37			platform_(platform),
38			isolate_data_(nullptr),
39			owns_isolate_(false),
40		6	deserialize_mode_(false) {
41			isolate_data_ =
42		6	std::make_unique<IsolateData>(isolate_, event_loop, platform, nullptr);
43
44		6	SetIsolateMiscHandlers(isolate_, {});
45		6	}
46
47		4900	const std::vector<intptr_t>& NodeMainInstance::CollectExternalReferences() {
48			// Cannot be called more than once.
49	✗✓	4900	CHECK_NULL(registry_);
50		4900	registry_.reset(new ExternalReferenceRegistry());
51		4900	return registry_->external_references();
52			}
53
54		6	std::unique_ptr<NodeMainInstance> NodeMainInstance::Create(
55			Isolate* isolate,
56			uv_loop_t* event_loop,
57			MultiIsolatePlatform* platform,
58			const std::vector<std::string>& args,
59			const std::vector<std::string>& exec_args) {
60			return std::unique_ptr<NodeMainInstance>(
61		6	new NodeMainInstance(isolate, event_loop, platform, args, exec_args));
62			}
63
64		4895	NodeMainInstance::NodeMainInstance(
65			Isolate::CreateParams* params,
66			uv_loop_t* event_loop,
67			MultiIsolatePlatform* platform,
68			const std::vector<std::string>& args,
69			const std::vector<std::string>& exec_args,
70		4895	const std::vector<size_t>* per_isolate_data_indexes)
71			: args_(args),
72			exec_args_(exec_args),
73			array_buffer_allocator_(ArrayBufferAllocator::Create()),
74			isolate_(nullptr),
75			platform_(platform),
76			isolate_data_(nullptr),
77		4895	owns_isolate_(true) {
78		4895	params->array_buffer_allocator = array_buffer_allocator_.get();
79		4895	deserialize_mode_ = per_isolate_data_indexes != nullptr;
80	✓✓	4895	if (deserialize_mode_) {
81			// TODO(joyeecheung): collect external references and set it in
82			// params.external_references.
83			const std::vector<intptr_t>& external_references =
84		4894	CollectExternalReferences();
85		4894	params->external_references = external_references.data();
86			}
87
88		4895	isolate_ = Isolate::Allocate();
89	✗✓	4895	CHECK_NOT_NULL(isolate_);
90			// Register the isolate on the platform before the isolate gets initialized,
91			// so that the isolate can access the platform during initialization.
92		4895	platform->RegisterIsolate(isolate_, event_loop);
93		4895	SetIsolateCreateParamsForNode(params);
94		4895	Isolate::Initialize(isolate_, *params);
95
96			// If the indexes are not nullptr, we are not deserializing
97	✓✓✗✓	4895	CHECK_IMPLIES(deserialize_mode_, params->external_references != nullptr);
98		4895	isolate_data_ = std::make_unique<IsolateData>(isolate_,
99			event_loop,
100			platform,
101		4895	array_buffer_allocator_.get(),
102		4895	per_isolate_data_indexes);
103		4895	IsolateSettings s;
104		4895	SetIsolateMiscHandlers(isolate_, s);
105	✓✓	4895	if (!deserialize_mode_) {
106			// If in deserialize mode, delay until after the deserialization is
107			// complete.
108		1	SetIsolateErrorHandlers(isolate_, s);
109			}
110		4895	isolate_data_->max_young_gen_size =
111		4895	params->constraints.max_young_generation_size_in_bytes();
112		4895	}
113
114		6	void NodeMainInstance::Dispose() {
115	✗✓	6	CHECK(!owns_isolate_);
116		6	platform_->DrainTasks(isolate_);
117		6	}
118
119	✓✓✓✓ ✓✓✓✓	4433	NodeMainInstance::~NodeMainInstance() {
120	✓✓	4415	if (!owns_isolate_) {
121		6	return;
122			}
123		4409	platform_->UnregisterIsolate(isolate_);
124		4409	isolate_->Dispose();
125		4415	}
126
127		4895	int NodeMainInstance::Run(const EnvSerializeInfo* env_info) {
128		9304	Locker locker(isolate_);
129		9304	Isolate::Scope isolate_scope(isolate_);
130		9304	HandleScope handle_scope(isolate_);
131
132		4895	int exit_code = 0;
133			DeleteFnPtr<Environment, FreeEnvironment> env =
134		9304	CreateMainEnvironment(&exit_code, env_info);
135	✗✓	4895	CHECK_NOT_NULL(env);
136
137		4895	Context::Scope context_scope(env->context());
138		4895	Run(&exit_code, env.get());
139		4409	return exit_code;
140			}
141
142		4895	void NodeMainInstance::Run(int* exit_code, Environment* env) {
143	✓✗	4895	if (*exit_code == 0) {
144		4895	LoadEnvironment(env, StartExecutionCallback{});
145
146	✓✗	9021	*exit_code = SpinEventLoop(env).FromMaybe(1);
147			}
148
149		4409	ResetStdio();
150
151			// TODO(addaleax): Neither NODE_SHARED_MODE nor HAVE_INSPECTOR really
152			// make sense here.
153			#if HAVE_INSPECTOR && defined(__POSIX__) && !defined(NODE_SHARED_MODE)
154			struct sigaction act;
155		4409	memset(&act, 0, sizeof(act));
156	✓✓	141088	for (unsigned nr = 1; nr < kMaxSignal; nr += 1) {
157	✓✓✓✓ ✓✓	136679	if (nr == SIGKILL \|\| nr == SIGSTOP \|\| nr == SIGPROF)
158		13227	continue;
159	✓✓	123452	act.sa_handler = (nr == SIGPIPE) ? SIG_IGN : SIG_DFL;
160	✗✓	123452	CHECK_EQ(0, sigaction(nr, &act, nullptr));
161			}
162			#endif
163
164			#if defined(LEAK_SANITIZER)
165			__lsan_do_leak_check();
166			#endif
167		4409	}
168
169			DeleteFnPtr<Environment, FreeEnvironment>
170		4895	NodeMainInstance::CreateMainEnvironment(int* exit_code,
171			const EnvSerializeInfo* env_info) {
172		4895	*exit_code = 0; // Reset the exit code to 0
173
174		9790	HandleScope handle_scope(isolate_);
175
176			// TODO(addaleax): This should load a real per-Isolate option, currently
177			// this is still effectively per-process.
178	✓✓	4895	if (isolate_data_->options()->track_heap_objects) {
179		1	isolate_->GetHeapProfiler()->StartTrackingHeapObjects(true);
180			}
181
182	✓✓✗✓	4895	CHECK_IMPLIES(deserialize_mode_, env_info != nullptr);
183			Local<Context> context;
184		4895	DeleteFnPtr<Environment, FreeEnvironment> env;
185
186	✓✓	4895	if (deserialize_mode_) {
187		9788	env.reset(new Environment(isolate_data_.get(),
188			isolate_,
189		4894	args_,
190		4894	exec_args_,
191			env_info,
192			EnvironmentFlags::kDefaultFlags,
193		4894	{}));
194		4894	context = Context::FromSnapshot(isolate_,
195			kNodeContextIndex,
196		4894	{DeserializeNodeInternalFields, env.get()})
197		4894	.ToLocalChecked();
198
199	✗✓	4894	CHECK(!context.IsEmpty());
200		4894	Context::Scope context_scope(context);
201	✗✓	9788	CHECK(InitializeContextRuntime(context).IsJust());
202		4894	SetIsolateErrorHandlers(isolate_, {});
203		4894	env->InitializeMainContext(context, env_info);
204			#if HAVE_INSPECTOR
205		4894	env->InitializeInspector({});
206			#endif
207		4894	env->DoneBootstrapping();
208			} else {
209		1	context = NewContext(isolate_);
210	✗✓	1	CHECK(!context.IsEmpty());
211		1	Context::Scope context_scope(context);
212		2	env.reset(new Environment(isolate_data_.get(),
213			context,
214		1	args_,
215		1	exec_args_,
216			nullptr,
217			EnvironmentFlags::kDefaultFlags,
218		1	{}));
219			#if HAVE_INSPECTOR
220		1	env->InitializeInspector({});
221			#endif
222	✗✓	2	if (env->RunBootstrapping().IsEmpty()) {
223			return nullptr;
224			}
225			}
226
227		4895	return env;
228			}
229
230			} // namespace node