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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	stream_base-inl.h	Lines:	158	163	96.9 %
Date:	2021-09-21 04:13:38	Branches:	43	54	79.6 %


#ifndef SRC_STREAM_BASE_INL_H_
#define SRC_STREAM_BASE_INL_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "allocated_buffer-inl.h"
#include "async_wrap-inl.h"
#include "base_object-inl.h"
#include "node.h"
#include "stream_base.h"
#include "v8.h"

namespace node {

StreamReq::StreamReq(
    StreamBase* stream,
    v8::Local<v8::Object> req_wrap_obj) : stream_(stream) {
  AttachToObject(req_wrap_obj);
}

void StreamReq::AttachToObject(v8::Local<v8::Object> req_wrap_obj) {
  CHECK_EQ(req_wrap_obj->GetAlignedPointerFromInternalField(
               StreamReq::kStreamReqField),
           nullptr);
  req_wrap_obj->SetAlignedPointerInInternalField(
      StreamReq::kStreamReqField, this);
}

StreamReq* StreamReq::FromObject(v8::Local<v8::Object> req_wrap_obj) {
  return static_cast<StreamReq*>(
      req_wrap_obj->GetAlignedPointerFromInternalField(
          StreamReq::kStreamReqField));
}

void StreamReq::Dispose() {
  BaseObjectPtr<AsyncWrap> destroy_me{GetAsyncWrap()};
  object()->SetAlignedPointerInInternalField(
      StreamReq::kStreamReqField, nullptr);
  destroy_me->Detach();
}

v8::Local<v8::Object> StreamReq::object() {
  return GetAsyncWrap()->object();
}

ShutdownWrap::ShutdownWrap(
    StreamBase* stream,
    v8::Local<v8::Object> req_wrap_obj)
    : StreamReq(stream, req_wrap_obj) { }

WriteWrap::WriteWrap(
    StreamBase* stream,
    v8::Local<v8::Object> req_wrap_obj)
    : StreamReq(stream, req_wrap_obj) { }

void StreamListener::PassReadErrorToPreviousListener(ssize_t nread) {
  CHECK_NOT_NULL(previous_listener_);
  previous_listener_->OnStreamRead(nread, uv_buf_init(nullptr, 0));
}

void StreamResource::PushStreamListener(StreamListener* listener) {
  CHECK_NOT_NULL(listener);
  CHECK_NULL(listener->stream_);

  listener->previous_listener_ = listener_;
  listener->stream_ = this;

  listener_ = listener;
}

void StreamResource::RemoveStreamListener(StreamListener* listener) {
  CHECK_NOT_NULL(listener);

  StreamListener* previous;
  StreamListener* current;

  // Remove from the linked list.
  for (current = listener_, previous = nullptr;
       /* No loop condition because we want a crash if listener is not found */
       ; previous = current, current = current->previous_listener_) {
    CHECK_NOT_NULL(current);
    if (current == listener) {
      if (previous != nullptr)
        previous->previous_listener_ = current->previous_listener_;
      else
        listener_ = listener->previous_listener_;
      break;
    }
  }

  listener->stream_ = nullptr;
  listener->previous_listener_ = nullptr;
}

uv_buf_t StreamResource::EmitAlloc(size_t suggested_size) {
  DebugSealHandleScope seal_handle_scope;
  return listener_->OnStreamAlloc(suggested_size);
}

void StreamResource::EmitRead(ssize_t nread, const uv_buf_t& buf) {
  DebugSealHandleScope seal_handle_scope;
  if (nread > 0)
    bytes_read_ += static_cast<uint64_t>(nread);
  listener_->OnStreamRead(nread, buf);
}

void StreamResource::EmitAfterWrite(WriteWrap* w, int status) {
  DebugSealHandleScope seal_handle_scope;
  listener_->OnStreamAfterWrite(w, status);
}

void StreamResource::EmitAfterShutdown(ShutdownWrap* w, int status) {
  DebugSealHandleScope seal_handle_scope;
  listener_->OnStreamAfterShutdown(w, status);
}

void StreamResource::EmitWantsWrite(size_t suggested_size) {
  DebugSealHandleScope seal_handle_scope;
  listener_->OnStreamWantsWrite(suggested_size);
}

StreamBase::StreamBase(Environment* env) : env_(env) {
  PushStreamListener(&default_listener_);
}

int StreamBase::Shutdown(v8::Local<v8::Object> req_wrap_obj) {
  Environment* env = stream_env();

  v8::HandleScope handle_scope(env->isolate());

  if (req_wrap_obj.IsEmpty()) {
    if (!env->shutdown_wrap_template()
             ->NewInstance(env->context())
             .ToLocal(&req_wrap_obj)) {
      return UV_EBUSY;
    }
    StreamReq::ResetObject(req_wrap_obj);
  }

  BaseObjectPtr<AsyncWrap> req_wrap_ptr;
  AsyncHooks::DefaultTriggerAsyncIdScope trigger_scope(GetAsyncWrap());
  ShutdownWrap* req_wrap = CreateShutdownWrap(req_wrap_obj);
  if (req_wrap != nullptr)
    req_wrap_ptr.reset(req_wrap->GetAsyncWrap());
  int err = DoShutdown(req_wrap);

  if (err != 0 && req_wrap != nullptr) {
    req_wrap->Dispose();
  }

  const char* msg = Error();
  if (msg != nullptr) {
    req_wrap_obj->Set(
        env->context(),
        env->error_string(), OneByteString(env->isolate(), msg)).Check();
    ClearError();
  }

  return err;
}

StreamWriteResult StreamBase::Write(
    uv_buf_t* bufs,
    size_t count,
    uv_stream_t* send_handle,
    v8::Local<v8::Object> req_wrap_obj) {
  Environment* env = stream_env();
  int err;

  size_t total_bytes = 0;
  for (size_t i = 0; i < count; ++i)
    total_bytes += bufs[i].len;
  bytes_written_ += total_bytes;

  if (send_handle == nullptr) {
    err = DoTryWrite(&bufs, &count);
    if (err != 0 || count == 0) {
      return StreamWriteResult { false, err, nullptr, total_bytes, {} };
    }
  }

  v8::HandleScope handle_scope(env->isolate());

  if (req_wrap_obj.IsEmpty()) {
    if (!env->write_wrap_template()
             ->NewInstance(env->context())
             .ToLocal(&req_wrap_obj)) {
      return StreamWriteResult { false, UV_EBUSY, nullptr, 0, {} };
    }
    StreamReq::ResetObject(req_wrap_obj);
  }

  AsyncHooks::DefaultTriggerAsyncIdScope trigger_scope(GetAsyncWrap());
  WriteWrap* req_wrap = CreateWriteWrap(req_wrap_obj);
  BaseObjectPtr<AsyncWrap> req_wrap_ptr(req_wrap->GetAsyncWrap());

  err = DoWrite(req_wrap, bufs, count, send_handle);
  bool async = err == 0;

  if (!async) {
    req_wrap->Dispose();
    req_wrap = nullptr;
  }

  const char* msg = Error();
  if (msg != nullptr) {
    req_wrap_obj->Set(env->context(),
                      env->error_string(),
                      OneByteString(env->isolate(), msg)).Check();
    ClearError();
  }

  return StreamWriteResult {
      async, err, req_wrap, total_bytes, std::move(req_wrap_ptr) };
}

template <typename OtherBase>
SimpleShutdownWrap<OtherBase>::SimpleShutdownWrap(
    StreamBase* stream,
    v8::Local<v8::Object> req_wrap_obj)
  : ShutdownWrap(stream, req_wrap_obj),
    OtherBase(stream->stream_env(),
              req_wrap_obj,
              AsyncWrap::PROVIDER_SHUTDOWNWRAP) {
}

template <typename OtherBase>
SimpleWriteWrap<OtherBase>::SimpleWriteWrap(
    StreamBase* stream,
    v8::Local<v8::Object> req_wrap_obj)
  : WriteWrap(stream, req_wrap_obj),
    OtherBase(stream->stream_env(),
              req_wrap_obj,
              AsyncWrap::PROVIDER_WRITEWRAP) {
}

void StreamBase::AttachToObject(v8::Local<v8::Object> obj) {
  obj->SetAlignedPointerInInternalField(
      StreamBase::kStreamBaseField, this);
}

StreamBase* StreamBase::FromObject(v8::Local<v8::Object> obj) {
  if (obj->GetAlignedPointerFromInternalField(StreamBase::kSlot) == nullptr)
    return nullptr;

  return static_cast<StreamBase*>(
      obj->GetAlignedPointerFromInternalField(
          StreamBase::kStreamBaseField));
}

WriteWrap* WriteWrap::FromObject(v8::Local<v8::Object> req_wrap_obj) {
  return static_cast<WriteWrap*>(StreamReq::FromObject(req_wrap_obj));
}

template <typename T, bool kIsWeak>
WriteWrap* WriteWrap::FromObject(
    const BaseObjectPtrImpl<T, kIsWeak>& base_obj) {
  if (!base_obj) return nullptr;
  return FromObject(base_obj->object());
}

ShutdownWrap* ShutdownWrap::FromObject(v8::Local<v8::Object> req_wrap_obj) {
  return static_cast<ShutdownWrap*>(StreamReq::FromObject(req_wrap_obj));
}

template <typename T, bool kIsWeak>
ShutdownWrap* ShutdownWrap::FromObject(
    const BaseObjectPtrImpl<T, kIsWeak>& base_obj) {
  if (!base_obj) return nullptr;
  return FromObject(base_obj->object());
}

void WriteWrap::SetAllocatedStorage(AllocatedBuffer&& storage) {
  CHECK_NULL(storage_.data());
  storage_ = std::move(storage);
}

void StreamReq::Done(int status, const char* error_str) {
  AsyncWrap* async_wrap = GetAsyncWrap();
  Environment* env = async_wrap->env();
  if (error_str != nullptr) {
    v8::HandleScope handle_scope(env->isolate());
    async_wrap->object()->Set(env->context(),
                              env->error_string(),
                              OneByteString(env->isolate(), error_str))
                              .Check();
  }

  OnDone(status);
}

void StreamReq::ResetObject(v8::Local<v8::Object> obj) {
  DCHECK_GT(obj->InternalFieldCount(), StreamReq::kStreamReqField);

  obj->SetAlignedPointerInInternalField(StreamReq::kSlot, nullptr);
  obj->SetAlignedPointerInInternalField(StreamReq::kStreamReqField, nullptr);
}

}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif  // SRC_STREAM_BASE_INL_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#ifndef SRC_STREAM_BASE_INL_H_
2			#define SRC_STREAM_BASE_INL_H_
3
4			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6			#include "allocated_buffer-inl.h"
7			#include "async_wrap-inl.h"
8			#include "base_object-inl.h"
9			#include "node.h"
10			#include "stream_base.h"
11			#include "v8.h"
12
13			namespace node {
14
15		17083	StreamReq::StreamReq(
16			StreamBase* stream,
17		17083	v8::Local<v8::Object> req_wrap_obj) : stream_(stream) {
18		17083	AttachToObject(req_wrap_obj);
19		17083	}
20
21		17083	void StreamReq::AttachToObject(v8::Local<v8::Object> req_wrap_obj) {
22	✗✓	34166	CHECK_EQ(req_wrap_obj->GetAlignedPointerFromInternalField(
23			StreamReq::kStreamReqField),
24			nullptr);
25		17083	req_wrap_obj->SetAlignedPointerInInternalField(
26			StreamReq::kStreamReqField, this);
27		17083	}
28
29		7466	StreamReq* StreamReq::FromObject(v8::Local<v8::Object> req_wrap_obj) {
30			return static_cast<StreamReq*>(
31		7466	req_wrap_obj->GetAlignedPointerFromInternalField(
32		7466	StreamReq::kStreamReqField));
33			}
34
35		17071	void StreamReq::Dispose() {
36		34142	BaseObjectPtr<AsyncWrap> destroy_me{GetAsyncWrap()};
37		34142	object()->SetAlignedPointerInInternalField(
38			StreamReq::kStreamReqField, nullptr);
39		17071	destroy_me->Detach();
40		17071	}
41
42		17691	v8::Local<v8::Object> StreamReq::object() {
43		17691	return GetAsyncWrap()->object();
44			}
45
46		9472	ShutdownWrap::ShutdownWrap(
47			StreamBase* stream,
48		9472	v8::Local<v8::Object> req_wrap_obj)
49		9472	: StreamReq(stream, req_wrap_obj) { }
50
51		7611	WriteWrap::WriteWrap(
52			StreamBase* stream,
53		7611	v8::Local<v8::Object> req_wrap_obj)
54		7611	: StreamReq(stream, req_wrap_obj) { }
55
56		12973	void StreamListener::PassReadErrorToPreviousListener(ssize_t nread) {
57	✗✓	12973	CHECK_NOT_NULL(previous_listener_);
58		12973	previous_listener_->OnStreamRead(nread, uv_buf_init(nullptr, 0));
59		12973	}
60
61		105874	void StreamResource::PushStreamListener(StreamListener* listener) {
62	✗✓	105874	CHECK_NOT_NULL(listener);
63	✗✓	105874	CHECK_NULL(listener->stream_);
64
65		105874	listener->previous_listener_ = listener_;
66		105874	listener->stream_ = this;
67
68		105874	listener_ = listener;
69		105874	}
70
71		105202	void StreamResource::RemoveStreamListener(StreamListener* listener) {
72	✗✓	105202	CHECK_NOT_NULL(listener);
73
74			StreamListener* previous;
75			StreamListener* current;
76
77			// Remove from the linked list.
78		105202	for (current = listener_, previous = nullptr;
79			/* No loop condition because we want a crash if listener is not found */
80		618	; previous = current, current = current->previous_listener_) {
81	✗✓	105820	CHECK_NOT_NULL(current);
82	✓✓	105820	if (current == listener) {
83	✓✓	105202	if (previous != nullptr)
84		618	previous->previous_listener_ = current->previous_listener_;
85			else
86		104584	listener_ = listener->previous_listener_;
87		105202	break;
88			}
89		618	}
90
91		105202	listener->stream_ = nullptr;
92		105202	listener->previous_listener_ = nullptr;
93		105202	}
94
95		91759	uv_buf_t StreamResource::EmitAlloc(size_t suggested_size) {
96		91759	DebugSealHandleScope seal_handle_scope;
97		91759	return listener_->OnStreamAlloc(suggested_size);
98			}
99
100		106017	void StreamResource::EmitRead(ssize_t nread, const uv_buf_t& buf) {
101		106017	DebugSealHandleScope seal_handle_scope;
102	✓✓	106017	if (nread > 0)
103		85740	bytes_read_ += static_cast<uint64_t>(nread);
104		106017	listener_->OnStreamRead(nread, buf);
105		105895	}
106
107		7594	void StreamResource::EmitAfterWrite(WriteWrap* w, int status) {
108		7594	DebugSealHandleScope seal_handle_scope;
109		7594	listener_->OnStreamAfterWrite(w, status);
110		7593	}
111
112		9465	void StreamResource::EmitAfterShutdown(ShutdownWrap* w, int status) {
113		9465	DebugSealHandleScope seal_handle_scope;
114		9465	listener_->OnStreamAfterShutdown(w, status);
115		9465	}
116
117		2660	void StreamResource::EmitWantsWrite(size_t suggested_size) {
118		2660	DebugSealHandleScope seal_handle_scope;
119		2660	listener_->OnStreamWantsWrite(suggested_size);
120		2660	}
121
122		65929	StreamBase::StreamBase(Environment* env) : env_(env) {
123		65929	PushStreamListener(&default_listener_);
124		65929	}
125
126		33504	int StreamBase::Shutdown(v8::Local<v8::Object> req_wrap_obj) {
127		33504	Environment* env = stream_env();
128
129		67008	v8::HandleScope handle_scope(env->isolate());
130
131	✓✓	33504	if (req_wrap_obj.IsEmpty()) {
132		599	if (!env->shutdown_wrap_template()
133		599	->NewInstance(env->context())
134	✗✓	599	.ToLocal(&req_wrap_obj)) {
135			return UV_EBUSY;
136			}
137		599	StreamReq::ResetObject(req_wrap_obj);
138			}
139
140		67008	BaseObjectPtr<AsyncWrap> req_wrap_ptr;
141		33504	AsyncHooks::DefaultTriggerAsyncIdScope trigger_scope(GetAsyncWrap());
142		33504	ShutdownWrap* req_wrap = CreateShutdownWrap(req_wrap_obj);
143	✓✓	33504	if (req_wrap != nullptr)
144		9472	req_wrap_ptr.reset(req_wrap->GetAsyncWrap());
145		33504	int err = DoShutdown(req_wrap);
146
147	✓✓✓✓	33504	if (err != 0 && req_wrap != nullptr) {
148		5	req_wrap->Dispose();
149			}
150
151		33504	const char* msg = Error();
152	✗✓	33504	if (msg != nullptr) {
153			req_wrap_obj->Set(
154			env->context(),
155			env->error_string(), OneByteString(env->isolate(), msg)).Check();
156			ClearError();
157			}
158
159		33504	return err;
160			}
161
162		100975	StreamWriteResult StreamBase::Write(
163			uv_buf_t* bufs,
164			size_t count,
165			uv_stream_t* send_handle,
166			v8::Local<v8::Object> req_wrap_obj) {
167		100975	Environment* env = stream_env();
168			int err;
169
170		100975	size_t total_bytes = 0;
171	✓✓	349013	for (size_t i = 0; i < count; ++i)
172		248038	total_bytes += bufs[i].len;
173		100975	bytes_written_ += total_bytes;
174
175	✓✓	100975	if (send_handle == nullptr) {
176		100869	err = DoTryWrite(&bufs, &count);
177	✓✓✓✓	100869	if (err != 0 \|\| count == 0) {
178		93364	return StreamWriteResult { false, err, nullptr, total_bytes, {} };
179			}
180			}
181
182		15221	v8::HandleScope handle_scope(env->isolate());
183
184	✓✓	7611	if (req_wrap_obj.IsEmpty()) {
185		2281	if (!env->write_wrap_template()
186		2281	->NewInstance(env->context())
187	✗✓	2281	.ToLocal(&req_wrap_obj)) {
188			return StreamWriteResult { false, UV_EBUSY, nullptr, 0, {} };
189			}
190		2281	StreamReq::ResetObject(req_wrap_obj);
191			}
192
193		15221	AsyncHooks::DefaultTriggerAsyncIdScope trigger_scope(GetAsyncWrap());
194		7611	WriteWrap* req_wrap = CreateWriteWrap(req_wrap_obj);
195		15221	BaseObjectPtr<AsyncWrap> req_wrap_ptr(req_wrap->GetAsyncWrap());
196
197		7611	err = DoWrite(req_wrap, bufs, count, send_handle);
198		7610	bool async = err == 0;
199
200	✓✓	7610	if (!async) {
201		8	req_wrap->Dispose();
202		8	req_wrap = nullptr;
203			}
204
205		7610	const char* msg = Error();
206	✓✓	7610	if (msg != nullptr) {
207		6	req_wrap_obj->Set(env->context(),
208			env->error_string(),
209		18	OneByteString(env->isolate(), msg)).Check();
210		6	ClearError();
211			}
212
213			return StreamWriteResult {
214		7610	async, err, req_wrap, total_bytes, std::move(req_wrap_ptr) };
215			}
216
217			template <typename OtherBase>
218		9472	SimpleShutdownWrap<OtherBase>::SimpleShutdownWrap(
219			StreamBase* stream,
220			v8::Local<v8::Object> req_wrap_obj)
221			: ShutdownWrap(stream, req_wrap_obj),
222			OtherBase(stream->stream_env(),
223			req_wrap_obj,
224		9472	AsyncWrap::PROVIDER_SHUTDOWNWRAP) {
225		9472	}
226
227			template <typename OtherBase>
228		7611	SimpleWriteWrap<OtherBase>::SimpleWriteWrap(
229			StreamBase* stream,
230			v8::Local<v8::Object> req_wrap_obj)
231			: WriteWrap(stream, req_wrap_obj),
232			OtherBase(stream->stream_env(),
233			req_wrap_obj,
234		7611	AsyncWrap::PROVIDER_WRITEWRAP) {
235		7611	}
236
237		65929	void StreamBase::AttachToObject(v8::Local<v8::Object> obj) {
238		65929	obj->SetAlignedPointerInInternalField(
239			StreamBase::kStreamBaseField, this);
240		65929	}
241
242		295047	StreamBase* StreamBase::FromObject(v8::Local<v8::Object> obj) {
243	✓✓	590094	if (obj->GetAlignedPointerFromInternalField(StreamBase::kSlot) == nullptr)
244		1	return nullptr;
245
246			return static_cast<StreamBase*>(
247		295046	obj->GetAlignedPointerFromInternalField(
248		295046	StreamBase::kStreamBaseField));
249			}
250
251		6857	WriteWrap* WriteWrap::FromObject(v8::Local<v8::Object> req_wrap_obj) {
252		6857	return static_cast<WriteWrap*>(StreamReq::FromObject(req_wrap_obj));
253			}
254
255			template <typename T, bool kIsWeak>
256		6857	WriteWrap* WriteWrap::FromObject(
257			const BaseObjectPtrImpl<T, kIsWeak>& base_obj) {
258	✗✓	6857	if (!base_obj) return nullptr;
259		6857	return FromObject(base_obj->object());
260			}
261
262			ShutdownWrap* ShutdownWrap::FromObject(v8::Local<v8::Object> req_wrap_obj) {
263			return static_cast<ShutdownWrap*>(StreamReq::FromObject(req_wrap_obj));
264			}
265
266			template <typename T, bool kIsWeak>
267			ShutdownWrap* ShutdownWrap::FromObject(
268			const BaseObjectPtrImpl<T, kIsWeak>& base_obj) {
269			if (!base_obj) return nullptr;
270			return FromObject(base_obj->object());
271			}
272
273		3423	void WriteWrap::SetAllocatedStorage(AllocatedBuffer&& storage) {
274	✗✓	3423	CHECK_NULL(storage_.data());
275		3423	storage_ = std::move(storage);
276		3423	}
277
278		17059	void StreamReq::Done(int status, const char* error_str) {
279		17059	AsyncWrap* async_wrap = GetAsyncWrap();
280		17059	Environment* env = async_wrap->env();
281	✓✓	17059	if (error_str != nullptr) {
282		4	v8::HandleScope handle_scope(env->isolate());
283		4	async_wrap->object()->Set(env->context(),
284			env->error_string(),
285		16	OneByteString(env->isolate(), error_str))
286			.Check();
287			}
288
289		17059	OnDone(status);
290		17058	}
291
292		121444	void StreamReq::ResetObject(v8::Local<v8::Object> obj) {
293			DCHECK_GT(obj->InternalFieldCount(), StreamReq::kStreamReqField);
294
295		121444	obj->SetAlignedPointerInInternalField(StreamReq::kSlot, nullptr);
296		121444	obj->SetAlignedPointerInInternalField(StreamReq::kStreamReqField, nullptr);
297		121444	}
298
299			} // namespace node
300
301			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
302
303			#endif // SRC_STREAM_BASE_INL_H_