Revision: 11563
Author: [email protected]
Date: Tue May 15 04:00:30 2012
Log: Add a readbuffer function to d8, that reads a file into an
ArrayBuffer.
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10388140
http://code.google.com/p/v8/source/detail?r=11563
Modified:
/branches/bleeding_edge/src/d8.cc
/branches/bleeding_edge/src/d8.h
=======================================
--- /branches/bleeding_edge/src/d8.cc Tue May 15 02:21:18 2012
+++ /branches/bleeding_edge/src/d8.cc Tue May 15 04:00:30 2012
@@ -835,6 +835,8 @@
global_template->Set(String::New("read"), FunctionTemplate::New(Read));
global_template->Set(String::New("readbinary"),
FunctionTemplate::New(ReadBinary));
+ global_template->Set(String::New("readbuffer"),
+ FunctionTemplate::New(ReadBuffer));
global_template->Set(String::New("readline"),
FunctionTemplate::New(ReadLine));
global_template->Set(String::New("load"), FunctionTemplate::New(Load));
@@ -1068,6 +1070,32 @@
BinaryResource* resource = new BinaryResource(chars, size);
return String::NewExternal(resource);
}
+
+
+Handle<Value> Shell::ReadBuffer(const Arguments& args) {
+ String::Utf8Value filename(args[0]);
+ int length;
+ if (*filename == NULL) {
+ return ThrowException(String::New("Error loading file"));
+ }
+ char* data = ReadChars(*filename, &length);
+ if (data == NULL) {
+ return ThrowException(String::New("Error reading file"));
+ }
+
+ Handle<Object> buffer = Object::New();
+ buffer->Set(String::New(kArrayBufferMarkerPropName), True(), ReadOnly);
+
+ Persistent<Object> persistent_buffer = Persistent<Object>::New(buffer);
+ persistent_buffer.MakeWeak(data, ExternalArrayWeakCallback);
+ persistent_buffer.MarkIndependent();
+
+ buffer->SetIndexedPropertiesToExternalArrayData(
+ reinterpret_cast<uint8_t*>(data), kExternalUnsignedByteArray,
length);
+ buffer->Set(String::New("byteLength"),
+ Int32::New(static_cast<int32_t>(length)), ReadOnly);
+ return buffer;
+}
#ifndef V8_SHARED
=======================================
--- /branches/bleeding_edge/src/d8.h Tue Jan 24 03:55:11 2012
+++ /branches/bleeding_edge/src/d8.h Tue May 15 04:00:30 2012
@@ -308,6 +308,7 @@
static Handle<Value> DisableProfiler(const Arguments& args);
static Handle<Value> Read(const Arguments& args);
static Handle<Value> ReadBinary(const Arguments& args);
+ static Handle<Value> ReadBuffer(const Arguments& args);
static Handle<String> ReadFromStdin();
static Handle<Value> ReadLine(const Arguments& args) {
return ReadFromStdin();
--
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