@ -24,6 +24,7 @@
# include "node_buffer.h"
# include "v8.h"
# include "v8-profiler.h"
# include <assert.h>
# include <stdlib.h> // malloc, free
@ -33,9 +34,10 @@
# include <arpa / inet.h> // htons, htonl
# endif
# define MIN(a,b) ((a) < (b) ? (a) : (b))
# define BUFFER_CLASS_ID (0xBABE)
namespace node {
using namespace v8 ;
@ -188,6 +190,7 @@ Buffer::Buffer(Handle<Object> wrapper, size_t length) : ObjectWrap() {
length_ = 0 ;
callback_ = NULL ;
handle_ . SetWrapperClassId ( BUFFER_CLASS_ID ) ;
Replace ( NULL , length , NULL , NULL ) ;
}
@ -728,6 +731,61 @@ bool Buffer::HasInstance(v8::Handle<v8::Value> val) {
}
class RetainedBufferInfo : public v8 : : RetainedObjectInfo {
public :
RetainedBufferInfo ( Buffer * buffer ) ;
virtual void Dispose ( ) ;
virtual bool IsEquivalent ( RetainedObjectInfo * other ) ;
virtual intptr_t GetHash ( ) ;
virtual const char * GetLabel ( ) ;
virtual intptr_t GetSizeInBytes ( ) ;
private :
Buffer * buffer_ ;
static const char label [ ] ;
} ;
const char RetainedBufferInfo : : label [ ] = " Buffer " ;
RetainedBufferInfo : : RetainedBufferInfo ( Buffer * buffer ) : buffer_ ( buffer ) {
}
void RetainedBufferInfo : : Dispose ( ) {
buffer_ = NULL ;
delete this ;
}
bool RetainedBufferInfo : : IsEquivalent ( RetainedObjectInfo * other ) {
return label = = other - > GetLabel ( ) & &
buffer_ = = static_cast < RetainedBufferInfo * > ( other ) - > buffer_ ;
}
intptr_t RetainedBufferInfo : : GetHash ( ) {
return reinterpret_cast < intptr_t > ( buffer_ ) ;
}
const char * RetainedBufferInfo : : GetLabel ( ) {
return label ;
}
intptr_t RetainedBufferInfo : : GetSizeInBytes ( ) {
return Buffer : : Length ( buffer_ ) ;
}
RetainedObjectInfo * WrapperInfo ( uint16_t class_id , Handle < Value > wrapper ) {
assert ( class_id = = BUFFER_CLASS_ID ) ;
assert ( Buffer : : HasInstance ( wrapper ) ) ;
Buffer * buffer = Buffer : : Unwrap < Buffer > ( wrapper . As < Object > ( ) ) ;
return new RetainedBufferInfo ( buffer ) ;
}
void Buffer : : Initialize ( Handle < Object > target ) {
HandleScope scope ;
@ -775,6 +833,8 @@ void Buffer::Initialize(Handle<Object> target) {
Buffer : : MakeFastBuffer ) ;
target - > Set ( String : : NewSymbol ( " SlowBuffer " ) , constructor_template - > GetFunction ( ) ) ;
HeapProfiler : : DefineWrapperClass ( BUFFER_CLASS_ID , WrapperInfo ) ;
}