Head

GCC Code Coverage Report

Directory:	../		Exec	Total	Coverage
File:	/home/iojs/build/workspace/node-test-commit-linux-coverage-daily/nodes/benchmark/out/../src/node_dir.cc	Lines:	156	179	87.2 %
Date:	2021-01-16 04:10:54	Branches:	61	116	52.6 %


#include "node_dir.h"
#include "node_file-inl.h"
#include "node_process.h"
#include "memory_tracker-inl.h"
#include "util.h"

#include "tracing/trace_event.h"

#include "string_bytes.h"

#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <cstring>
#include <cerrno>
#include <climits>

#include <memory>

namespace node {

namespace fs_dir {

using fs::FSReqAfterScope;
using fs::FSReqBase;
using fs::FSReqWrapSync;
using fs::GetReqWrap;

using v8::Array;
using v8::Context;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
using v8::HandleScope;
using v8::Integer;
using v8::Isolate;
using v8::Local;
using v8::MaybeLocal;
using v8::Null;
using v8::Number;
using v8::Object;
using v8::ObjectTemplate;
using v8::Value;

#define TRACE_NAME(name) "fs_dir.sync." #name
#define GET_TRACE_ENABLED                                                      \
  (*TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED                                 \
  (TRACING_CATEGORY_NODE2(fs_dir, sync)) != 0)
#define FS_DIR_SYNC_TRACE_BEGIN(syscall, ...)                                  \
  if (GET_TRACE_ENABLED)                                                       \
  TRACE_EVENT_BEGIN(TRACING_CATEGORY_NODE2(fs_dir, sync), TRACE_NAME(syscall), \
  ##__VA_ARGS__);
#define FS_DIR_SYNC_TRACE_END(syscall, ...)                                    \
  if (GET_TRACE_ENABLED)                                                       \
  TRACE_EVENT_END(TRACING_CATEGORY_NODE2(fs_dir, sync), TRACE_NAME(syscall),   \
  ##__VA_ARGS__);

DirHandle::DirHandle(Environment* env, Local<Object> obj, uv_dir_t* dir)
    : AsyncWrap(env, obj, AsyncWrap::PROVIDER_DIRHANDLE),
      dir_(dir) {
  MakeWeak();

  dir_->nentries = 0;
  dir_->dirents = nullptr;
}

DirHandle* DirHandle::New(Environment* env, uv_dir_t* dir) {
  Local<Object> obj;
  if (!env->dir_instance_template()
          ->NewInstance(env->context())
          .ToLocal(&obj)) {
    return nullptr;
  }

  return new DirHandle(env, obj, dir);
}

void DirHandle::New(const FunctionCallbackInfo<Value>& args) {
  CHECK(args.IsConstructCall());
}

DirHandle::~DirHandle() {
  CHECK(!closing_);  // We should not be deleting while explicitly closing!
  GCClose();         // Close synchronously and emit warning
  CHECK(closed_);    // We have to be closed at the point
}

void DirHandle::MemoryInfo(MemoryTracker* tracker) const {
  tracker->TrackFieldWithSize("dir", sizeof(*dir_));
}

// Close the directory handle if it hasn't already been closed. A process
// warning will be emitted using a SetImmediate to avoid calling back to
// JS during GC. If closing the fd fails at this point, a fatal exception
// will crash the process immediately.
inline void DirHandle::GCClose() {
  if (closed_) return;
  uv_fs_t req;
  int ret = uv_fs_closedir(nullptr, &req, dir_, nullptr);
  uv_fs_req_cleanup(&req);
  closing_ = false;
  closed_ = true;

  struct err_detail { int ret; };

  err_detail detail { ret };

  if (ret < 0) {
    // Do not unref this
    env()->SetImmediate([detail](Environment* env) {
      const char* msg = "Closing directory handle on garbage collection failed";
      // This exception will end up being fatal for the process because
      // it is being thrown from within the SetImmediate handler and
      // there is no JS stack to bubble it to. In other words, tearing
      // down the process is the only reasonable thing we can do here.
      HandleScope handle_scope(env->isolate());
      env->ThrowUVException(detail.ret, "close", msg);
    });
    return;
  }

  // If the close was successful, we still want to emit a process warning
  // to notify that the file descriptor was gc'd. We want to be noisy about
  // this because not explicitly closing the DirHandle is a bug.

  env()->SetImmediate([](Environment* env) {
    ProcessEmitWarning(env,
                       "Closing directory handle on garbage collection");
  }, CallbackFlags::kUnrefed);
}

void AfterClose(uv_fs_t* req) {
  FSReqBase* req_wrap = FSReqBase::from_req(req);
  FSReqAfterScope after(req_wrap, req);

  if (after.Proceed())
    req_wrap->Resolve(Undefined(req_wrap->env()->isolate()));
}

void DirHandle::Close(const FunctionCallbackInfo<Value>& args) {
  Environment* env = Environment::GetCurrent(args);

  const int argc = args.Length();
  CHECK_GE(argc, 1);

  DirHandle* dir;
  ASSIGN_OR_RETURN_UNWRAP(&dir, args.Holder());

  dir->closing_ = false;
  dir->closed_ = true;

  FSReqBase* req_wrap_async = GetReqWrap(args, 0);
  if (req_wrap_async != nullptr) {  // close(req)
    AsyncCall(env, req_wrap_async, args, "closedir", UTF8, AfterClose,
              uv_fs_closedir, dir->dir());
  } else {  // close(undefined, ctx)
    CHECK_EQ(argc, 2);
    FSReqWrapSync req_wrap_sync;
    FS_DIR_SYNC_TRACE_BEGIN(closedir);
    SyncCall(env, args[1], &req_wrap_sync, "closedir", uv_fs_closedir,
             dir->dir());
    FS_DIR_SYNC_TRACE_END(closedir);
  }
}

static MaybeLocal<Array> DirentListToArray(
    Environment* env,
    uv_dirent_t* ents,
    int num,
    enum encoding encoding,
    Local<Value>* err_out) {
  MaybeStackBuffer<Local<Value>, 64> entries(num * 2);

  // Return an array of all read filenames.
  int j = 0;
  for (int i = 0; i < num; i++) {
    Local<Value> filename;
    Local<Value> error;
    const size_t namelen = strlen(ents[i].name);
    if (!StringBytes::Encode(env->isolate(),
                             ents[i].name,
                             namelen,
                             encoding,
                             &error).ToLocal(&filename)) {
      *err_out = error;
      return MaybeLocal<Array>();
    }

    entries[j++] = filename;
    entries[j++] = Integer::New(env->isolate(), ents[i].type);
  }

  return Array::New(env->isolate(), entries.out(), j);
}

static void AfterDirRead(uv_fs_t* req) {
  BaseObjectPtr<FSReqBase> req_wrap { FSReqBase::from_req(req) };
  FSReqAfterScope after(req_wrap.get(), req);

  if (!after.Proceed()) {
    return;
  }

  Environment* env = req_wrap->env();
  Isolate* isolate = env->isolate();

  if (req->result == 0) {
    // Done
    Local<Value> done = Null(isolate);
    after.Clear();
    req_wrap->Resolve(done);
    return;
  }

  uv_dir_t* dir = static_cast<uv_dir_t*>(req->ptr);

  Local<Value> error;
  Local<Array> js_array;
  if (!DirentListToArray(env,
                         dir->dirents,
                         req->result,
                         req_wrap->encoding(),
                         &error).ToLocal(&js_array)) {
    // Clear libuv resources *before* delivering results to JS land because
    // that can schedule another operation on the same uv_dir_t. Ditto below.
    after.Clear();
    return req_wrap->Reject(error);
  }

  after.Clear();
  req_wrap->Resolve(js_array);
}


void DirHandle::Read(const FunctionCallbackInfo<Value>& args) {
  Environment* env = Environment::GetCurrent(args);
  Isolate* isolate = env->isolate();

  const int argc = args.Length();
  CHECK_GE(argc, 3);

  const enum encoding encoding = ParseEncoding(isolate, args[0], UTF8);

  DirHandle* dir;
  ASSIGN_OR_RETURN_UNWRAP(&dir, args.Holder());

  CHECK(args[1]->IsNumber());
  uint64_t buffer_size = args[1].As<Number>()->Value();

  if (buffer_size != dir->dirents_.size()) {
    dir->dirents_.resize(buffer_size);
    dir->dir_->nentries = buffer_size;
    dir->dir_->dirents = dir->dirents_.data();
  }

  FSReqBase* req_wrap_async = GetReqWrap(args, 2);
  if (req_wrap_async != nullptr) {  // dir.read(encoding, bufferSize, req)
    AsyncCall(env, req_wrap_async, args, "readdir", encoding,
              AfterDirRead, uv_fs_readdir, dir->dir());
  } else {  // dir.read(encoding, bufferSize, undefined, ctx)
    CHECK_EQ(argc, 4);
    FSReqWrapSync req_wrap_sync;
    FS_DIR_SYNC_TRACE_BEGIN(readdir);
    int err = SyncCall(env, args[3], &req_wrap_sync, "readdir", uv_fs_readdir,
                       dir->dir());
    FS_DIR_SYNC_TRACE_END(readdir);
    if (err < 0) {
      return;  // syscall failed, no need to continue, error info is in ctx
    }

    if (req_wrap_sync.req.result == 0) {
      // Done
      Local<Value> done = Null(isolate);
      args.GetReturnValue().Set(done);
      return;
    }

    CHECK_GE(req_wrap_sync.req.result, 0);

    Local<Value> error;
    Local<Array> js_array;
    if (!DirentListToArray(env,
                           dir->dir()->dirents,
                           req_wrap_sync.req.result,
                           encoding,
                           &error).ToLocal(&js_array)) {
      Local<Object> ctx = args[2].As<Object>();
      USE(ctx->Set(env->context(), env->error_string(), error));
      return;
    }

    args.GetReturnValue().Set(js_array);
  }
}

void AfterOpenDir(uv_fs_t* req) {
  FSReqBase* req_wrap = FSReqBase::from_req(req);
  FSReqAfterScope after(req_wrap, req);

  if (!after.Proceed()) {
    return;
  }

  Environment* env = req_wrap->env();

  uv_dir_t* dir = static_cast<uv_dir_t*>(req->ptr);
  DirHandle* handle = DirHandle::New(env, dir);

  req_wrap->Resolve(handle->object().As<Value>());
}

static void OpenDir(const FunctionCallbackInfo<Value>& args) {
  Environment* env = Environment::GetCurrent(args);
  Isolate* isolate = env->isolate();

  const int argc = args.Length();
  CHECK_GE(argc, 3);

  BufferValue path(isolate, args[0]);
  CHECK_NOT_NULL(*path);

  const enum encoding encoding = ParseEncoding(isolate, args[1], UTF8);

  FSReqBase* req_wrap_async = GetReqWrap(args, 2);
  if (req_wrap_async != nullptr) {  // openDir(path, encoding, req)
    AsyncCall(env, req_wrap_async, args, "opendir", encoding, AfterOpenDir,
              uv_fs_opendir, *path);
  } else {  // openDir(path, encoding, undefined, ctx)
    CHECK_EQ(argc, 4);
    FSReqWrapSync req_wrap_sync;
    FS_DIR_SYNC_TRACE_BEGIN(opendir);
    int result = SyncCall(env, args[3], &req_wrap_sync, "opendir",
                          uv_fs_opendir, *path);
    FS_DIR_SYNC_TRACE_END(opendir);
    if (result < 0) {
      return;  // syscall failed, no need to continue, error info is in ctx
    }

    uv_fs_t* req = &req_wrap_sync.req;
    uv_dir_t* dir = static_cast<uv_dir_t*>(req->ptr);
    DirHandle* handle = DirHandle::New(env, dir);

    args.GetReturnValue().Set(handle->object().As<Value>());
  }
}

void Initialize(Local<Object> target,
                Local<Value> unused,
                Local<Context> context,
                void* priv) {
  Environment* env = Environment::GetCurrent(context);

  env->SetMethod(target, "opendir", OpenDir);

  // Create FunctionTemplate for DirHandle
  Local<FunctionTemplate> dir = env->NewFunctionTemplate(DirHandle::New);
  dir->Inherit(AsyncWrap::GetConstructorTemplate(env));
  env->SetProtoMethod(dir, "read", DirHandle::Read);
  env->SetProtoMethod(dir, "close", DirHandle::Close);
  Local<ObjectTemplate> dirt = dir->InstanceTemplate();
  dirt->SetInternalFieldCount(DirHandle::kInternalFieldCount);
  env->SetConstructorFunction(target, "DirHandle", dir);
  env->set_dir_instance_template(dirt);
}

}  // namespace fs_dir

}  // end namespace node

NODE_MODULE_CONTEXT_AWARE_INTERNAL(fs_dir, node::fs_dir::Initialize)


Generated by: GCOVR (Version 3.4)

Line	Branch	Exec	Source
1			#include "node_dir.h"
2			#include "node_file-inl.h"
3			#include "node_process.h"
4			#include "memory_tracker-inl.h"
5			#include "util.h"
6
7			#include "tracing/trace_event.h"
8
9			#include "string_bytes.h"
10
11			#include <fcntl.h>
12			#include <sys/types.h>
13			#include <sys/stat.h>
14			#include <cstring>
15			#include <cerrno>
16			#include <climits>
17
18			#include <memory>
19
20			namespace node {
21
22			namespace fs_dir {
23
24			using fs::FSReqAfterScope;
25			using fs::FSReqBase;
26			using fs::FSReqWrapSync;
27			using fs::GetReqWrap;
28
29			using v8::Array;
30			using v8::Context;
31			using v8::FunctionCallbackInfo;
32			using v8::FunctionTemplate;
33			using v8::HandleScope;
34			using v8::Integer;
35			using v8::Isolate;
36			using v8::Local;
37			using v8::MaybeLocal;
38			using v8::Null;
39			using v8::Number;
40			using v8::Object;
41			using v8::ObjectTemplate;
42			using v8::Value;
43
44			#define TRACE_NAME(name) "fs_dir.sync." #name
45			#define GET_TRACE_ENABLED \
46			(*TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED \
47			(TRACING_CATEGORY_NODE2(fs_dir, sync)) != 0)
48			#define FS_DIR_SYNC_TRACE_BEGIN(syscall, ...) \
49			if (GET_TRACE_ENABLED) \
50			TRACE_EVENT_BEGIN(TRACING_CATEGORY_NODE2(fs_dir, sync), TRACE_NAME(syscall), \
51			##__VA_ARGS__);
52			#define FS_DIR_SYNC_TRACE_END(syscall, ...) \
53			if (GET_TRACE_ENABLED) \
54			TRACE_EVENT_END(TRACING_CATEGORY_NODE2(fs_dir, sync), TRACE_NAME(syscall), \
55			##__VA_ARGS__);
56
57		26	DirHandle::DirHandle(Environment* env, Local<Object> obj, uv_dir_t* dir)
58			: AsyncWrap(env, obj, AsyncWrap::PROVIDER_DIRHANDLE),
59		26	dir_(dir) {
60		26	MakeWeak();
61
62		26	dir_->nentries = 0;
63		26	dir_->dirents = nullptr;
64		26	}
65
66		26	DirHandle* DirHandle::New(Environment* env, uv_dir_t* dir) {
67			Local<Object> obj;
68	✗✓	78	if (!env->dir_instance_template()
69		78	->NewInstance(env->context())
70		26	.ToLocal(&obj)) {
71			return nullptr;
72			}
73
74		26	return new DirHandle(env, obj, dir);
75			}
76
77			void DirHandle::New(const FunctionCallbackInfo<Value>& args) {
78			CHECK(args.IsConstructCall());
79			}
80
81		78	DirHandle::~DirHandle() {
82	✗✓	26	CHECK(!closing_); // We should not be deleting while explicitly closing!
83		26	GCClose(); // Close synchronously and emit warning
84	✗✓	26	CHECK(closed_); // We have to be closed at the point
85		52	}
86
87			void DirHandle::MemoryInfo(MemoryTracker* tracker) const {
88			tracker->TrackFieldWithSize("dir", sizeof(*dir_));
89			}
90
91			// Close the directory handle if it hasn't already been closed. A process
92			// warning will be emitted using a SetImmediate to avoid calling back to
93			// JS during GC. If closing the fd fails at this point, a fatal exception
94			// will crash the process immediately.
95		26	inline void DirHandle::GCClose() {
96	✓✓	40	if (closed_) return;
97			uv_fs_t req;
98		12	int ret = uv_fs_closedir(nullptr, &req, dir_, nullptr);
99		12	uv_fs_req_cleanup(&req);
100		12	closing_ = false;
101		12	closed_ = true;
102
103			struct err_detail { int ret; };
104
105		12	err_detail detail { ret };
106
107	✗✓	12	if (ret < 0) {
108			// Do not unref this
109			env()->SetImmediate([detail](Environment* env) {
110			const char* msg = "Closing directory handle on garbage collection failed";
111			// This exception will end up being fatal for the process because
112			// it is being thrown from within the SetImmediate handler and
113			// there is no JS stack to bubble it to. In other words, tearing
114			// down the process is the only reasonable thing we can do here.
115			HandleScope handle_scope(env->isolate());
116			env->ThrowUVException(detail.ret, "close", msg);
117			});
118			return;
119			}
120
121			// If the close was successful, we still want to emit a process warning
122			// to notify that the file descriptor was gc'd. We want to be noisy about
123			// this because not explicitly closing the DirHandle is a bug.
124
125		25	env()->SetImmediate([](Environment* env) {
126			ProcessEmitWarning(env,
127		1	"Closing directory handle on garbage collection");
128		13	}, CallbackFlags::kUnrefed);
129			}
130
131		9	void AfterClose(uv_fs_t* req) {
132		9	FSReqBase* req_wrap = FSReqBase::from_req(req);
133		18	FSReqAfterScope after(req_wrap, req);
134
135	✓✗	9	if (after.Proceed())
136		18	req_wrap->Resolve(Undefined(req_wrap->env()->isolate()));
137		9	}
138
139		14	void DirHandle::Close(const FunctionCallbackInfo<Value>& args) {
140		14	Environment* env = Environment::GetCurrent(args);
141
142		14	const int argc = args.Length();
143	✗✓	14	CHECK_GE(argc, 1);
144
145			DirHandle* dir;
146	✗✓	14	ASSIGN_OR_RETURN_UNWRAP(&dir, args.Holder());
147
148		14	dir->closing_ = false;
149		14	dir->closed_ = true;
150
151		14	FSReqBase* req_wrap_async = GetReqWrap(args, 0);
152	✓✓	14	if (req_wrap_async != nullptr) { // close(req)
153		9	AsyncCall(env, req_wrap_async, args, "closedir", UTF8, AfterClose,
154		9	uv_fs_closedir, dir->dir());
155			} else { // close(undefined, ctx)
156	✗✓	5	CHECK_EQ(argc, 2);
157		10	FSReqWrapSync req_wrap_sync;
158	✗✓	5	FS_DIR_SYNC_TRACE_BEGIN(closedir);
159		5	SyncCall(env, args[1], &req_wrap_sync, "closedir", uv_fs_closedir,
160		5	dir->dir());
161	✗✗✗✓	5	FS_DIR_SYNC_TRACE_END(closedir);
162			}
163			}
164
165		11	static MaybeLocal<Array> DirentListToArray(
166			Environment* env,
167			uv_dirent_t* ents,
168			int num,
169			enum encoding encoding,
170			Local<Value>* err_out) {
171		22	MaybeStackBuffer<Local<Value>, 64> entries(num * 2);
172
173			// Return an array of all read filenames.
174		11	int j = 0;
175	✓✓	66	for (int i = 0; i < num; i++) {
176			Local<Value> filename;
177			Local<Value> error;
178		55	const size_t namelen = strlen(ents[i].name);
179	✗✓	110	if (!StringBytes::Encode(env->isolate(),
180		55	ents[i].name,
181			namelen,
182			encoding,
183		110	&error).ToLocal(&filename)) {
184			*err_out = error;
185			return MaybeLocal<Array>();
186			}
187
188		55	entries[j++] = filename;
189		110	entries[j++] = Integer::New(env->isolate(), ents[i].type);
190			}
191
192		22	return Array::New(env->isolate(), entries.out(), j);
193			}
194
195		11	static void AfterDirRead(uv_fs_t* req) {
196		20	BaseObjectPtr<FSReqBase> req_wrap { FSReqBase::from_req(req) };
197	✓✓	20	FSReqAfterScope after(req_wrap.get(), req);
198
199	✗✓	11	if (!after.Proceed()) {
200			return;
201			}
202
203		11	Environment* env = req_wrap->env();
204		11	Isolate* isolate = env->isolate();
205
206	✓✓	11	if (req->result == 0) {
207			// Done
208			Local<Value> done = Null(isolate);
209		2	after.Clear();
210		2	req_wrap->Resolve(done);
211		2	return;
212			}
213
214		9	uv_dir_t* dir = static_cast<uv_dir_t*>(req->ptr);
215
216			Local<Value> error;
217			Local<Array> js_array;
218	✗✓	18	if (!DirentListToArray(env,
219			dir->dirents,
220		9	req->result,
221			req_wrap->encoding(),
222		27	&error).ToLocal(&js_array)) {
223			// Clear libuv resources before delivering results to JS land because
224			// that can schedule another operation on the same uv_dir_t. Ditto below.
225			after.Clear();
226			return req_wrap->Reject(error);
227			}
228
229		9	after.Clear();
230	✓✓	18	req_wrap->Resolve(js_array);
231			}
232
233
234		14	void DirHandle::Read(const FunctionCallbackInfo<Value>& args) {
235		14	Environment* env = Environment::GetCurrent(args);
236		14	Isolate* isolate = env->isolate();
237
238		14	const int argc = args.Length();
239	✗✓	14	CHECK_GE(argc, 3);
240
241		14	const enum encoding encoding = ParseEncoding(isolate, args[0], UTF8);
242
243			DirHandle* dir;
244	✗✓	15	ASSIGN_OR_RETURN_UNWRAP(&dir, args.Holder());
245
246	✗✓	28	CHECK(args[1]->IsNumber());
247		42	uint64_t buffer_size = args[1].As<Number>()->Value();
248
249	✓✓	14	if (buffer_size != dir->dirents_.size()) {
250		11	dir->dirents_.resize(buffer_size);
251		11	dir->dir_->nentries = buffer_size;
252		11	dir->dir_->dirents = dir->dirents_.data();
253			}
254
255		14	FSReqBase* req_wrap_async = GetReqWrap(args, 2);
256	✓✓	14	if (req_wrap_async != nullptr) { // dir.read(encoding, bufferSize, req)
257		11	AsyncCall(env, req_wrap_async, args, "readdir", encoding,
258		11	AfterDirRead, uv_fs_readdir, dir->dir());
259			} else { // dir.read(encoding, bufferSize, undefined, ctx)
260	✗✓	3	CHECK_EQ(argc, 4);
261		5	FSReqWrapSync req_wrap_sync;
262	✗✓	3	FS_DIR_SYNC_TRACE_BEGIN(readdir);
263		3	int err = SyncCall(env, args[3], &req_wrap_sync, "readdir", uv_fs_readdir,
264		3	dir->dir());
265	✗✗✗✓	3	FS_DIR_SYNC_TRACE_END(readdir);
266	✗✓	3	if (err < 0) {
267			return; // syscall failed, no need to continue, error info is in ctx
268			}
269
270	✗✗✓✓	3	if (req_wrap_sync.req.result == 0) {
271			// Done
272			Local<Value> done = Null(isolate);
273		2	args.GetReturnValue().Set(done);
274		1	return;
275			}
276
277	✗✓	2	CHECK_GE(req_wrap_sync.req.result, 0);
278
279			Local<Value> error;
280			Local<Array> js_array;
281	✗✓	4	if (!DirentListToArray(env,
282		2	dir->dir()->dirents,
283		2	req_wrap_sync.req.result,
284			encoding,
285		6	&error).ToLocal(&js_array)) {
286			Local<Object> ctx = args[2].As<Object>();
287			USE(ctx->Set(env->context(), env->error_string(), error));
288			return;
289			}
290
291	✓✓	4	args.GetReturnValue().Set(js_array);
292			}
293			}
294
295		12	void AfterOpenDir(uv_fs_t* req) {
296		12	FSReqBase* req_wrap = FSReqBase::from_req(req);
297		23	FSReqAfterScope after(req_wrap, req);
298
299	✓✓	12	if (!after.Proceed()) {
300		1	return;
301			}
302
303		11	Environment* env = req_wrap->env();
304
305		11	uv_dir_t* dir = static_cast<uv_dir_t*>(req->ptr);
306		11	DirHandle* handle = DirHandle::New(env, dir);
307
308	✓✓	22	req_wrap->Resolve(handle->object().As<Value>());
309			}
310
311		28	static void OpenDir(const FunctionCallbackInfo<Value>& args) {
312		28	Environment* env = Environment::GetCurrent(args);
313		28	Isolate* isolate = env->isolate();
314
315		28	const int argc = args.Length();
316	✗✓	28	CHECK_GE(argc, 3);
317
318		55	BufferValue path(isolate, args[0]);
319	✗✓	28	CHECK_NOT_NULL(*path);
320
321		28	const enum encoding encoding = ParseEncoding(isolate, args[1], UTF8);
322
323		28	FSReqBase* req_wrap_async = GetReqWrap(args, 2);
324	✓✓	28	if (req_wrap_async != nullptr) { // openDir(path, encoding, req)
325		12	AsyncCall(env, req_wrap_async, args, "opendir", encoding, AfterOpenDir,
326		12	uv_fs_opendir, *path);
327			} else { // openDir(path, encoding, undefined, ctx)
328	✗✓	16	CHECK_EQ(argc, 4);
329	✓✓	31	FSReqWrapSync req_wrap_sync;
330	✗✓✗✗	16	FS_DIR_SYNC_TRACE_BEGIN(opendir);
331		16	int result = SyncCall(env, args[3], &req_wrap_sync, "opendir",
332		16	uv_fs_opendir, *path);
333	✗✓	16	FS_DIR_SYNC_TRACE_END(opendir);
334	✓✓	16	if (result < 0) {
335	✗✗	1	return; // syscall failed, no need to continue, error info is in ctx
336			}
337
338	✗✗	15	uv_fs_t* req = &req_wrap_sync.req;
339		15	uv_dir_t* dir = static_cast<uv_dir_t*>(req->ptr);
340		15	DirHandle* handle = DirHandle::New(env, dir);
341
342	✓✓	45	args.GetReturnValue().Set(handle->object().As<Value>());
343			}
344			}
345
346		4989	void Initialize(Local<Object> target,
347			Local<Value> unused,
348			Local<Context> context,
349			void* priv) {
350		4989	Environment* env = Environment::GetCurrent(context);
351
352		4989	env->SetMethod(target, "opendir", OpenDir);
353
354			// Create FunctionTemplate for DirHandle
355		4989	Local<FunctionTemplate> dir = env->NewFunctionTemplate(DirHandle::New);
356		9978	dir->Inherit(AsyncWrap::GetConstructorTemplate(env));
357		4989	env->SetProtoMethod(dir, "read", DirHandle::Read);
358		4989	env->SetProtoMethod(dir, "close", DirHandle::Close);
359		4989	Local<ObjectTemplate> dirt = dir->InstanceTemplate();
360		4989	dirt->SetInternalFieldCount(DirHandle::kInternalFieldCount);
361		4989	env->SetConstructorFunction(target, "DirHandle", dir);
362		4989	env->set_dir_instance_template(dirt);
363		4989	}
364
365			} // namespace fs_dir
366
367			} // end namespace node
368
369	✓✗✓✗	18652	NODE_MODULE_CONTEXT_AWARE_INTERNAL(fs_dir, node::fs_dir::Initialize)