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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	node_file-inl.h	Lines:	150	157	95.5 %
Date:	2022-06-21 04:15:54	Branches:	26	36	72.2 %


#ifndef SRC_NODE_FILE_INL_H_
#define SRC_NODE_FILE_INL_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "node_file.h"
#include "req_wrap-inl.h"

namespace node {
namespace fs {

FSContinuationData::FSContinuationData(uv_fs_t* req, int mode, uv_fs_cb done_cb)
  : done_cb_(done_cb), req_(req), mode_(mode) {
}

void FSContinuationData::PushPath(std::string&& path) {
  paths_.emplace_back(std::move(path));
}

void FSContinuationData::PushPath(const std::string& path) {
  paths_.push_back(path);
}

void FSContinuationData::MaybeSetFirstPath(const std::string& path) {
  if (first_path_.empty()) {
    first_path_ = path;
  }
}

std::string FSContinuationData::PopPath() {
  CHECK(!paths_.empty());
  std::string path = std::move(paths_.back());
  paths_.pop_back();
  return path;
}

void FSContinuationData::Done(int result) {
  req_->result = result;
  done_cb_(req_);
}

FSReqBase::FSReqBase(BindingData* binding_data,
                     v8::Local<v8::Object> req,
                     AsyncWrap::ProviderType type,
                     bool use_bigint)
  : ReqWrap(binding_data->env(), req, type),
    use_bigint_(use_bigint),
    binding_data_(binding_data) {
}

void FSReqBase::Init(const char* syscall,
                     const char* data,
                     size_t len,
                     enum encoding encoding) {
  syscall_ = syscall;
  encoding_ = encoding;

  if (data != nullptr) {
    CHECK(!has_data_);
    buffer_.AllocateSufficientStorage(len + 1);
    buffer_.SetLengthAndZeroTerminate(len);
    memcpy(*buffer_, data, len);
    has_data_ = true;
  }
}

FSReqBase::FSReqBuffer&
FSReqBase::Init(const char* syscall, size_t len, enum encoding encoding) {
  syscall_ = syscall;
  encoding_ = encoding;

  buffer_.AllocateSufficientStorage(len + 1);
  has_data_ = false;  // so that the data does not show up in error messages
  return buffer_;
}

FSReqCallback::FSReqCallback(BindingData* binding_data,
                             v8::Local<v8::Object> req,
                             bool use_bigint)
  : FSReqBase(binding_data,
              req,
              AsyncWrap::PROVIDER_FSREQCALLBACK,
              use_bigint) {}

template <typename NativeT, typename V8T>
void FillStatsArray(AliasedBufferBase<NativeT, V8T>* fields,
                    const uv_stat_t* s,
                    const size_t offset) {
#define SET_FIELD_WITH_STAT(stat_offset, stat)                               \
  fields->SetValue(offset + static_cast<size_t>(FsStatsOffset::stat_offset), \
                   static_cast<NativeT>(stat))

#define SET_FIELD_WITH_TIME_STAT(stat_offset, stat)                          \
  /* NOLINTNEXTLINE(runtime/int) */                                          \
  SET_FIELD_WITH_STAT(stat_offset, static_cast<unsigned long>(stat))

  SET_FIELD_WITH_STAT(kDev, s->st_dev);
  SET_FIELD_WITH_STAT(kMode, s->st_mode);
  SET_FIELD_WITH_STAT(kNlink, s->st_nlink);
  SET_FIELD_WITH_STAT(kUid, s->st_uid);
  SET_FIELD_WITH_STAT(kGid, s->st_gid);
  SET_FIELD_WITH_STAT(kRdev, s->st_rdev);
  SET_FIELD_WITH_STAT(kBlkSize, s->st_blksize);
  SET_FIELD_WITH_STAT(kIno, s->st_ino);
  SET_FIELD_WITH_STAT(kSize, s->st_size);
  SET_FIELD_WITH_STAT(kBlocks, s->st_blocks);

  SET_FIELD_WITH_TIME_STAT(kATimeSec, s->st_atim.tv_sec);
  SET_FIELD_WITH_TIME_STAT(kATimeNsec, s->st_atim.tv_nsec);
  SET_FIELD_WITH_TIME_STAT(kMTimeSec, s->st_mtim.tv_sec);
  SET_FIELD_WITH_TIME_STAT(kMTimeNsec, s->st_mtim.tv_nsec);
  SET_FIELD_WITH_TIME_STAT(kCTimeSec, s->st_ctim.tv_sec);
  SET_FIELD_WITH_TIME_STAT(kCTimeNsec, s->st_ctim.tv_nsec);
  SET_FIELD_WITH_TIME_STAT(kBirthTimeSec, s->st_birthtim.tv_sec);
  SET_FIELD_WITH_TIME_STAT(kBirthTimeNsec, s->st_birthtim.tv_nsec);

#undef SET_FIELD_WITH_TIME_STAT
#undef SET_FIELD_WITH_STAT
}

v8::Local<v8::Value> FillGlobalStatsArray(BindingData* binding_data,
                                          const bool use_bigint,
                                          const uv_stat_t* s,
                                          const bool second) {
  const ptrdiff_t offset =
      second ? static_cast<ptrdiff_t>(FsStatsOffset::kFsStatsFieldsNumber) : 0;
  if (use_bigint) {
    auto* const arr = &binding_data->stats_field_bigint_array;
    FillStatsArray(arr, s, offset);
    return arr->GetJSArray();
  } else {
    auto* const arr = &binding_data->stats_field_array;
    FillStatsArray(arr, s, offset);
    return arr->GetJSArray();
  }
}

template <typename AliasedBufferT>
FSReqPromise<AliasedBufferT>*
FSReqPromise<AliasedBufferT>::New(BindingData* binding_data,
                                  bool use_bigint) {
  Environment* env = binding_data->env();
  v8::Local<v8::Object> obj;
  if (!env->fsreqpromise_constructor_template()
           ->NewInstance(env->context())
           .ToLocal(&obj)) {
    return nullptr;
  }
  v8::Local<v8::Promise::Resolver> resolver;
  if (!v8::Promise::Resolver::New(env->context()).ToLocal(&resolver) ||
      obj->Set(env->context(), env->promise_string(), resolver).IsNothing()) {
    return nullptr;
  }
  return new FSReqPromise(binding_data, obj, use_bigint);
}

template <typename AliasedBufferT>
FSReqPromise<AliasedBufferT>::~FSReqPromise() {
  // Validate that the promise was explicitly resolved or rejected but only if
  // the Isolate is not terminating because in this case the promise might have
  // not finished.
  if (!env()->is_stopping()) CHECK(finished_);
}

template <typename AliasedBufferT>
FSReqPromise<AliasedBufferT>::FSReqPromise(
    BindingData* binding_data,
    v8::Local<v8::Object> obj,
    bool use_bigint)
  : FSReqBase(binding_data,
              obj,
              AsyncWrap::PROVIDER_FSREQPROMISE,
              use_bigint),
    stats_field_array_(
        env()->isolate(),
        static_cast<size_t>(FsStatsOffset::kFsStatsFieldsNumber)) {}

template <typename AliasedBufferT>
void FSReqPromise<AliasedBufferT>::Reject(v8::Local<v8::Value> reject) {
  finished_ = true;
  v8::HandleScope scope(env()->isolate());
  InternalCallbackScope callback_scope(this);
  v8::Local<v8::Value> value =
      object()->Get(env()->context(),
                    env()->promise_string()).ToLocalChecked();
  v8::Local<v8::Promise::Resolver> resolver = value.As<v8::Promise::Resolver>();
  USE(resolver->Reject(env()->context(), reject).FromJust());
}

template <typename AliasedBufferT>
void FSReqPromise<AliasedBufferT>::Resolve(v8::Local<v8::Value> value) {
  finished_ = true;
  v8::HandleScope scope(env()->isolate());
  InternalCallbackScope callback_scope(this);
  v8::Local<v8::Value> val =
      object()->Get(env()->context(),
                    env()->promise_string()).ToLocalChecked();
  v8::Local<v8::Promise::Resolver> resolver = val.As<v8::Promise::Resolver>();
  USE(resolver->Resolve(env()->context(), value).FromJust());
}

template <typename AliasedBufferT>
void FSReqPromise<AliasedBufferT>::ResolveStat(const uv_stat_t* stat) {
  FillStatsArray(&stats_field_array_, stat);
  Resolve(stats_field_array_.GetJSArray());
}

template <typename AliasedBufferT>
void FSReqPromise<AliasedBufferT>::SetReturnValue(
    const v8::FunctionCallbackInfo<v8::Value>& args) {
  v8::Local<v8::Value> val =
      object()->Get(env()->context(),
                    env()->promise_string()).ToLocalChecked();
  v8::Local<v8::Promise::Resolver> resolver = val.As<v8::Promise::Resolver>();
  args.GetReturnValue().Set(resolver->GetPromise());
}

template <typename AliasedBufferT>
void FSReqPromise<AliasedBufferT>::MemoryInfo(MemoryTracker* tracker) const {
  FSReqBase::MemoryInfo(tracker);
  tracker->TrackField("stats_field_array", stats_field_array_);
}

FSReqBase* GetReqWrap(const v8::FunctionCallbackInfo<v8::Value>& args,
                      int index,
                      bool use_bigint) {
  v8::Local<v8::Value> value = args[index];
  if (value->IsObject()) {
    return Unwrap<FSReqBase>(value.As<v8::Object>());
  }

  BindingData* binding_data = Environment::GetBindingData<BindingData>(args);
  Environment* env = binding_data->env();
  if (value->StrictEquals(env->fs_use_promises_symbol())) {
    if (use_bigint) {
      return FSReqPromise<AliasedBigUint64Array>::New(binding_data, use_bigint);
    } else {
      return FSReqPromise<AliasedFloat64Array>::New(binding_data, use_bigint);
    }
  }
  return nullptr;
}

// Returns nullptr if the operation fails from the start.
template <typename Func, typename... Args>
FSReqBase* AsyncDestCall(Environment* env, FSReqBase* req_wrap,
                         const v8::FunctionCallbackInfo<v8::Value>& args,
                         const char* syscall, const char* dest,
                         size_t len, enum encoding enc, uv_fs_cb after,
                         Func fn, Args... fn_args) {
  CHECK_NOT_NULL(req_wrap);
  req_wrap->Init(syscall, dest, len, enc);
  int err = req_wrap->Dispatch(fn, fn_args..., after);
  if (err < 0) {
    uv_fs_t* uv_req = req_wrap->req();
    uv_req->result = err;
    uv_req->path = nullptr;
    after(uv_req);  // after may delete req_wrap if there is an error
    req_wrap = nullptr;
  } else {
    req_wrap->SetReturnValue(args);
  }

  return req_wrap;
}

// Returns nullptr if the operation fails from the start.
template <typename Func, typename... Args>
FSReqBase* AsyncCall(Environment* env,
                     FSReqBase* req_wrap,
                     const v8::FunctionCallbackInfo<v8::Value>& args,
                     const char* syscall, enum encoding enc,
                     uv_fs_cb after, Func fn, Args... fn_args) {
  return AsyncDestCall(env, req_wrap, args,
                       syscall, nullptr, 0, enc,
                       after, fn, fn_args...);
}

// Template counterpart of SYNC_CALL, except that it only puts
// the error number and the syscall in the context instead of
// creating an error in the C++ land.
// ctx must be checked using value->IsObject() before being passed.
template <typename Func, typename... Args>
int SyncCall(Environment* env, v8::Local<v8::Value> ctx,
             FSReqWrapSync* req_wrap, const char* syscall,
             Func fn, Args... args) {
  env->PrintSyncTrace();
  int err = fn(env->event_loop(), &(req_wrap->req), args..., nullptr);
  if (err < 0) {
    v8::Local<v8::Context> context = env->context();
    v8::Local<v8::Object> ctx_obj = ctx.As<v8::Object>();
    v8::Isolate* isolate = env->isolate();
    ctx_obj->Set(context,
                 env->errno_string(),
                 v8::Integer::New(isolate, err)).Check();
    ctx_obj->Set(context,
                 env->syscall_string(),
                 OneByteString(isolate, syscall)).Check();
  }
  return err;
}

}  // namespace fs
}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif  // SRC_NODE_FILE_INL_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#ifndef SRC_NODE_FILE_INL_H_
2			#define SRC_NODE_FILE_INL_H_
3
4			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6			#include "node_file.h"
7			#include "req_wrap-inl.h"
8
9			namespace node {
10			namespace fs {
11
12		7096	FSContinuationData::FSContinuationData(uv_fs_t* req, int mode, uv_fs_cb done_cb)
13		7096	: done_cb_(done_cb), req_(req), mode_(mode) {
14		7096	}
15
16		766	void FSContinuationData::PushPath(std::string&& path) {
17		766	paths_.emplace_back(std::move(path));
18		766	}
19
20		6736	void FSContinuationData::PushPath(const std::string& path) {
21		6736	paths_.push_back(path);
22		6736	}
23
24		613	void FSContinuationData::MaybeSetFirstPath(const std::string& path) {
25	✓✓	613	if (first_path_.empty()) {
26		526	first_path_ = path;
27			}
28		613	}
29
30		7502	std::string FSContinuationData::PopPath() {
31	✗✓	7502	CHECK(!paths_.empty());
32		7502	std::string path = std::move(paths_.back());
33		7502	paths_.pop_back();
34		7502	return path;
35			}
36
37		360	void FSContinuationData::Done(int result) {
38		360	req_->result = result;
39		360	done_cb_(req_);
40		360	}
41
42		57789	FSReqBase::FSReqBase(BindingData* binding_data,
43			v8::Local<v8::Object> req,
44			AsyncWrap::ProviderType type,
45		57789	bool use_bigint)
46			: ReqWrap(binding_data->env(), req, type),
47			use_bigint_(use_bigint),
48		57789	binding_data_(binding_data) {
49		57789	}
50
51		57710	void FSReqBase::Init(const char* syscall,
52			const char* data,
53			size_t len,
54			enum encoding encoding) {
55		57710	syscall_ = syscall;
56		57710	encoding_ = encoding;
57
58	✓✓	57710	if (data != nullptr) {
59	✗✓	133	CHECK(!has_data_);
60		133	buffer_.AllocateSufficientStorage(len + 1);
61		133	buffer_.SetLengthAndZeroTerminate(len);
62		133	memcpy(*buffer_, data, len);
63		133	has_data_ = true;
64			}
65		57710	}
66
67			FSReqBase::FSReqBuffer&
68		79	FSReqBase::Init(const char* syscall, size_t len, enum encoding encoding) {
69		79	syscall_ = syscall;
70		79	encoding_ = encoding;
71
72		79	buffer_.AllocateSufficientStorage(len + 1);
73		79	has_data_ = false; // so that the data does not show up in error messages
74		79	return buffer_;
75			}
76
77		51574	FSReqCallback::FSReqCallback(BindingData* binding_data,
78			v8::Local<v8::Object> req,
79		51574	bool use_bigint)
80			: FSReqBase(binding_data,
81			req,
82			AsyncWrap::PROVIDER_FSREQCALLBACK,
83		51574	use_bigint) {}
84
85			template <typename NativeT, typename V8T>
86		374772	void FillStatsArray(AliasedBufferBase<NativeT, V8T>* fields,
87			const uv_stat_t* s,
88			const size_t offset) {
89			#define SET_FIELD_WITH_STAT(stat_offset, stat) \
90			fields->SetValue(offset + static_cast<size_t>(FsStatsOffset::stat_offset), \
91			static_cast<NativeT>(stat))
92
93			#define SET_FIELD_WITH_TIME_STAT(stat_offset, stat) \
94			/* NOLINTNEXTLINE(runtime/int) */ \
95			SET_FIELD_WITH_STAT(stat_offset, static_cast<unsigned long>(stat))
96
97		187386	SET_FIELD_WITH_STAT(kDev, s->st_dev);
98		187386	SET_FIELD_WITH_STAT(kMode, s->st_mode);
99		187386	SET_FIELD_WITH_STAT(kNlink, s->st_nlink);
100		187386	SET_FIELD_WITH_STAT(kUid, s->st_uid);
101		187386	SET_FIELD_WITH_STAT(kGid, s->st_gid);
102		187386	SET_FIELD_WITH_STAT(kRdev, s->st_rdev);
103		187386	SET_FIELD_WITH_STAT(kBlkSize, s->st_blksize);
104		187386	SET_FIELD_WITH_STAT(kIno, s->st_ino);
105		187386	SET_FIELD_WITH_STAT(kSize, s->st_size);
106		187386	SET_FIELD_WITH_STAT(kBlocks, s->st_blocks);
107
108		187386	SET_FIELD_WITH_TIME_STAT(kATimeSec, s->st_atim.tv_sec);
109		187386	SET_FIELD_WITH_TIME_STAT(kATimeNsec, s->st_atim.tv_nsec);
110		187386	SET_FIELD_WITH_TIME_STAT(kMTimeSec, s->st_mtim.tv_sec);
111		187386	SET_FIELD_WITH_TIME_STAT(kMTimeNsec, s->st_mtim.tv_nsec);
112		187386	SET_FIELD_WITH_TIME_STAT(kCTimeSec, s->st_ctim.tv_sec);
113		187386	SET_FIELD_WITH_TIME_STAT(kCTimeNsec, s->st_ctim.tv_nsec);
114		187386	SET_FIELD_WITH_TIME_STAT(kBirthTimeSec, s->st_birthtim.tv_sec);
115		187386	SET_FIELD_WITH_TIME_STAT(kBirthTimeNsec, s->st_birthtim.tv_nsec);
116
117			#undef SET_FIELD_WITH_TIME_STAT
118			#undef SET_FIELD_WITH_STAT
119		187386	}
120
121		185842	v8::Local<v8::Value> FillGlobalStatsArray(BindingData* binding_data,
122			const bool use_bigint,
123			const uv_stat_t* s,
124			const bool second) {
125		185842	const ptrdiff_t offset =
126	✓✓	185842	second ? static_cast<ptrdiff_t>(FsStatsOffset::kFsStatsFieldsNumber) : 0;
127	✓✓	185842	if (use_bigint) {
128		112425	auto* const arr = &binding_data->stats_field_bigint_array;
129		112425	FillStatsArray(arr, s, offset);
130		224850	return arr->GetJSArray();
131			} else {
132		73417	auto* const arr = &binding_data->stats_field_array;
133		73417	FillStatsArray(arr, s, offset);
134		146834	return arr->GetJSArray();
135			}
136			}
137
138			template <typename AliasedBufferT>
139			FSReqPromise<AliasedBufferT>*
140		12430	FSReqPromise<AliasedBufferT>::New(BindingData* binding_data,
141			bool use_bigint) {
142		12430	Environment* env = binding_data->env();
143			v8::Local<v8::Object> obj;
144		12430	if (!env->fsreqpromise_constructor_template()
145		12430	->NewInstance(env->context())
146	✗✓	12430	.ToLocal(&obj)) {
147			return nullptr;
148			}
149			v8::Local<v8::Promise::Resolver> resolver;
150	✓✗	37290	if (!v8::Promise::Resolver::New(env->context()).ToLocal(&resolver) \|\|
151	✗✓✗✓	49720	obj->Set(env->context(), env->promise_string(), resolver).IsNothing()) {
152			return nullptr;
153			}
154		12430	return new FSReqPromise(binding_data, obj, use_bigint);
155			}
156
157			template <typename AliasedBufferT>
158		24844	FSReqPromise<AliasedBufferT>::~FSReqPromise() {
159			// Validate that the promise was explicitly resolved or rejected but only if
160			// the Isolate is not terminating because in this case the promise might have
161			// not finished.
162	✓✓✗✓	12422	if (!env()->is_stopping()) CHECK(finished_);
163		37266	}
164
165			template <typename AliasedBufferT>
166		12430	FSReqPromise<AliasedBufferT>::FSReqPromise(
167			BindingData* binding_data,
168			v8::Local<v8::Object> obj,
169			bool use_bigint)
170			: FSReqBase(binding_data,
171			obj,
172			AsyncWrap::PROVIDER_FSREQPROMISE,
173			use_bigint),
174			stats_field_array_(
175			env()->isolate(),
176		12430	static_cast<size_t>(FsStatsOffset::kFsStatsFieldsNumber)) {}
177
178			template <typename AliasedBufferT>
179		1130	void FSReqPromise<AliasedBufferT>::Reject(v8::Local<v8::Value> reject) {
180		1130	finished_ = true;
181		2260	v8::HandleScope scope(env()->isolate());
182		1130	InternalCallbackScope callback_scope(this);
183			v8::Local<v8::Value> value =
184		3390	object()->Get(env()->context(),
185		1130	env()->promise_string()).ToLocalChecked();
186		1130	v8::Local<v8::Promise::Resolver> resolver = value.As<v8::Promise::Resolver>();
187		2260	USE(resolver->Reject(env()->context(), reject).FromJust());
188		1130	}
189
190			template <typename AliasedBufferT>
191		9686	void FSReqPromise<AliasedBufferT>::Resolve(v8::Local<v8::Value> value) {
192		9686	finished_ = true;
193		19372	v8::HandleScope scope(env()->isolate());
194		9686	InternalCallbackScope callback_scope(this);
195			v8::Local<v8::Value> val =
196		29058	object()->Get(env()->context(),
197		9686	env()->promise_string()).ToLocalChecked();
198		9686	v8::Local<v8::Promise::Resolver> resolver = val.As<v8::Promise::Resolver>();
199		19372	USE(resolver->Resolve(env()->context(), value).FromJust());
200		9686	}
201
202			template <typename AliasedBufferT>
203		3088	void FSReqPromise<AliasedBufferT>::ResolveStat(const uv_stat_t* stat) {
204		3088	FillStatsArray(&stats_field_array_, stat);
205		6176	Resolve(stats_field_array_.GetJSArray());
206		3088	}
207
208			template <typename AliasedBufferT>
209		12430	void FSReqPromise<AliasedBufferT>::SetReturnValue(
210			const v8::FunctionCallbackInfo<v8::Value>& args) {
211			v8::Local<v8::Value> val =
212		37290	object()->Get(env()->context(),
213		12430	env()->promise_string()).ToLocalChecked();
214		12430	v8::Local<v8::Promise::Resolver> resolver = val.As<v8::Promise::Resolver>();
215		12430	args.GetReturnValue().Set(resolver->GetPromise());
216		12430	}
217
218			template <typename AliasedBufferT>
219		2	void FSReqPromise<AliasedBufferT>::MemoryInfo(MemoryTracker* tracker) const {
220		2	FSReqBase::MemoryInfo(tracker);
221		2	tracker->TrackField("stats_field_array", stats_field_array_);
222			}
223
224	✓✗	766763	FSReqBase* GetReqWrap(const v8::FunctionCallbackInfo<v8::Value>& args,
225			int index,
226			bool use_bigint) {
227		766763	v8::Local<v8::Value> value = args[index];
228	✓✓	766763	if (value->IsObject()) {
229		51574	return Unwrap<FSReqBase>(value.As<v8::Object>());
230			}
231
232		715189	BindingData* binding_data = Environment::GetBindingData<BindingData>(args);
233		715189	Environment* env = binding_data->env();
234	✓✓	1430378	if (value->StrictEquals(env->fs_use_promises_symbol())) {
235	✓✓	6215	if (use_bigint) {
236		420	return FSReqPromise<AliasedBigUint64Array>::New(binding_data, use_bigint);
237			} else {
238		5795	return FSReqPromise<AliasedFloat64Array>::New(binding_data, use_bigint);
239			}
240			}
241		708974	return nullptr;
242			}
243
244			// Returns nullptr if the operation fails from the start.
245			template <typename Func, typename... Args>
246		115420	FSReqBase* AsyncDestCall(Environment* env, FSReqBase* req_wrap,
247			const v8::FunctionCallbackInfo<v8::Value>& args,
248			const char* syscall, const char* dest,
249			size_t len, enum encoding enc, uv_fs_cb after,
250			Func fn, Args... fn_args) {
251	✗✓	115420	CHECK_NOT_NULL(req_wrap);
252		115420	req_wrap->Init(syscall, dest, len, enc);
253		115420	int err = req_wrap->Dispatch(fn, fn_args..., after);
254	✗✓	115420	if (err < 0) {
255			uv_fs_t* uv_req = req_wrap->req();
256			uv_req->result = err;
257			uv_req->path = nullptr;
258			after(uv_req); // after may delete req_wrap if there is an error
259			req_wrap = nullptr;
260			} else {
261		115420	req_wrap->SetReturnValue(args);
262			}
263
264		115420	return req_wrap;
265			}
266
267			// Returns nullptr if the operation fails from the start.
268			template <typename Func, typename... Args>
269		115154	FSReqBase* AsyncCall(Environment* env,
270			FSReqBase* req_wrap,
271			const v8::FunctionCallbackInfo<v8::Value>& args,
272			const char* syscall, enum encoding enc,
273			uv_fs_cb after, Func fn, Args... fn_args) {
274		115154	return AsyncDestCall(env, req_wrap, args,
275			syscall, nullptr, 0, enc,
276		115154	after, fn, fn_args...);
277			}
278
279			// Template counterpart of SYNC_CALL, except that it only puts
280			// the error number and the syscall in the context instead of
281			// creating an error in the C++ land.
282			// ctx must be checked using value->IsObject() before being passed.
283			template <typename Func, typename... Args>
284		708691	int SyncCall(Environment* env, v8::Local<v8::Value> ctx,
285			FSReqWrapSync* req_wrap, const char* syscall,
286			Func fn, Args... args) {
287		708691	env->PrintSyncTrace();
288		708691	int err = fn(env->event_loop(), &(req_wrap->req), args..., nullptr);
289		708691	if (err < 0) {
290		2689	v8::Local<v8::Context> context = env->context();
291		2689	v8::Local<v8::Object> ctx_obj = ctx.As<v8::Object>();
292		2689	v8::Isolate* isolate = env->isolate();
293		10756	ctx_obj->Set(context,
294			env->errno_string(),
295			v8::Integer::New(isolate, err)).Check();
296		10756	ctx_obj->Set(context,
297			env->syscall_string(),
298			OneByteString(isolate, syscall)).Check();
299			}
300		708691	return err;
301			}
302
303			} // namespace fs
304			} // namespace node
305
306			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
307
308			#endif // SRC_NODE_FILE_INL_H_