v8::internal::RelocInfoBuffer Class Reference

Collaboration diagram for v8::internal::RelocInfoBuffer:

Public Member Functions
	RelocInfoBuffer (int buffer_initial_capicity, byte *pc)
	~RelocInfoBuffer ()
void	Write (const RelocInfo *rinfo)
Vector< byte >	GetResult ()

Private Member Functions
void	Grow ()

Private Attributes
RelocInfoWriter	reloc_info_writer_
byte *	buffer_
int	buffer_size_

Static Private Attributes
static const int	kBufferGap = RelocInfoWriter::kMaxSize
static const int	kMaximalBufferSize = 512*MB

Detailed Description

Definition at line 1300 of file liveedit.cc.

Constructor & Destructor Documentation

RelocInfoBuffer()

v8::internal::RelocInfoBuffer::RelocInfoBuffer ( int  buffer_initial_capicity, byte *  pc  )

inline

Definition at line 1302 of file liveedit.cc.

                                                         {
    buffer_size_ = buffer_initial_capicity + kBufferGap;
    buffer_ = NewArray<byte>(buffer_size_);
 
    reloc_info_writer_.Reposition(buffer_ + buffer_size_, pc);
  }

References buffer_, buffer_size_, kBufferGap, v8::internal::pc, and reloc_info_writer_.

~RelocInfoBuffer()

v8::internal::RelocInfoBuffer::~RelocInfoBuffer ( )

inline

Definition at line 1308 of file liveedit.cc.

                     {
    DeleteArray(buffer_);
  }

References buffer_, and v8::internal::DeleteArray().

Here is the call graph for this function:

Member Function Documentation

GetResult()

Vector<byte> v8::internal::RelocInfoBuffer::GetResult ( )

inline

Definition at line 1321 of file liveedit.cc.

                           {
    // Return the bytes from pos up to end of buffer.
    int result_size =
        static_cast<int>((buffer_ + buffer_size_) - reloc_info_writer_.pos());
    return Vector<byte>(reloc_info_writer_.pos(), result_size);
  }

References buffer_, buffer_size_, and reloc_info_writer_.

Referenced by v8::internal::PatchPositionsInCode().

Here is the caller graph for this function:

Grow()

void v8::internal::RelocInfoBuffer::Grow ( )

inlineprivate

Definition at line 1329 of file liveedit.cc.

              {
    // Compute new buffer size.
    int new_buffer_size;
    if (buffer_size_ < 2 * KB) {
      new_buffer_size = 4 * KB;
    } else {
      new_buffer_size = 2 * buffer_size_;
    }
    // Some internal data structures overflow for very large buffers,
    // they must ensure that kMaximalBufferSize is not too large.
    if (new_buffer_size > kMaximalBufferSize) {
      V8::FatalProcessOutOfMemory("RelocInfoBuffer::GrowBuffer");
    }
 
    // Set up new buffer.
    byte* new_buffer = NewArray<byte>(new_buffer_size);
 
    // Copy the data.
    int curently_used_size =
        static_cast<int>(buffer_ + buffer_size_ - reloc_info_writer_.pos());
    MemMove(new_buffer + new_buffer_size - curently_used_size,
            reloc_info_writer_.pos(), curently_used_size);
 
    reloc_info_writer_.Reposition(
        new_buffer + new_buffer_size - curently_used_size,
        reloc_info_writer_.last_pc());
 
    DeleteArray(buffer_);
    buffer_ = new_buffer;
    buffer_size_ = new_buffer_size;
  }

References buffer_, buffer_size_, v8::internal::DeleteArray(), v8::internal::V8::FatalProcessOutOfMemory(), v8::internal::KB, kMaximalBufferSize, v8::internal::MemMove(), and reloc_info_writer_.

Referenced by Write().

Here is the call graph for this function:

Here is the caller graph for this function:

Write()

void v8::internal::RelocInfoBuffer::Write ( const RelocInfo *  rinfo )

inline

Definition at line 1314 of file liveedit.cc.

                                     {
    if (buffer_ + kBufferGap >= reloc_info_writer_.pos()) {
      Grow();
    }
    reloc_info_writer_.Write(rinfo);
  }

References buffer_, Grow(), kBufferGap, and reloc_info_writer_.

Referenced by v8::internal::PatchPositionsInCode().

Here is the call graph for this function:

Here is the caller graph for this function:

Member Data Documentation

buffer_

byte* v8::internal::RelocInfoBuffer::buffer_

private

Definition at line 1362 of file liveedit.cc.

Referenced by GetResult(), Grow(), RelocInfoBuffer(), Write(), and ~RelocInfoBuffer().

buffer_size_

int v8::internal::RelocInfoBuffer::buffer_size_

private

Definition at line 1363 of file liveedit.cc.

Referenced by GetResult(), Grow(), and RelocInfoBuffer().

kBufferGap

const int v8::internal::RelocInfoBuffer::kBufferGap = RelocInfoWriter::kMaxSize

staticprivate

Definition at line 1365 of file liveedit.cc.

Referenced by RelocInfoBuffer(), and Write().

kMaximalBufferSize

const int v8::internal::RelocInfoBuffer::kMaximalBufferSize = 512*MB

staticprivate

Definition at line 1366 of file liveedit.cc.

Referenced by Grow().

reloc_info_writer_

RelocInfoWriter v8::internal::RelocInfoBuffer::reloc_info_writer_

private

Definition at line 1361 of file liveedit.cc.

Referenced by GetResult(), Grow(), RelocInfoBuffer(), and Write().

---

The documentation for this class was generated from the following file:

• /mnt/V8SourceCode/src/liveedit.cc