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Class: EventMachine::FastFileReader::Mapper

Relationships & Source Files
Inherits: Object
Defined in: ext/fastfilereader/rubymain.cpp

Class Method Summary

  • .new constructor mod_func

    mapper_new.

Instance Method Summary

Constructor Details

.new (mod_func)

mapper_new

[ GitHub ] 

  


# File 'ext/fastfilereader/rubymain.cpp', line 48



static VALUE mapper_new (VALUE self, VALUE filename)
{
	Mapper_t *m = new Mapper_t (StringValueCStr (filename));
	if (!m)
		rb_raise (rb_eStandardError, "No Mapper Object");
	VALUE v = Data_Wrap_Struct (Mapper, 0, mapper_dt, (void*)m);
	return v;
}


  







Instance Method Details



  

    #close  
  



  

    
mapper_close


  



  [ GitHub ]


  

  


# File 'ext/fastfilereader/rubymain.cpp', line 85



static VALUE mapper_close (VALUE self)
{
	Mapper_t *m = NULL;
	Data_Get_Struct (self, Mapper_t, m);
	if (!m)
		rb_raise (rb_eStandardError, "No Mapper Object");
	m->Close();
	return Qnil;
}


  








  

    #get_chunk  
  



  

    
mapper_get_chunk


  



  [ GitHub ]


  

  


# File 'ext/fastfilereader/rubymain.cpp', line 62



static VALUE mapper_get_chunk (VALUE self, VALUE start, VALUE length)
{
	Mapper_t *m = NULL;
	Data_Get_Struct (self, Mapper_t, m);
	if (!m)
		rb_raise (rb_eStandardError, "No Mapper Object");

	// TODO, what if some moron sends us a negative start value?
	unsigned _start = NUM2INT (start);
	unsigned _length = NUM2INT (length);
	if ((_start + _length) > m->GetFileSize())
		rb_raise (rb_eStandardError, "Mapper Range Error");

	const char *chunk = m->GetChunk (_start);
	if (!chunk)
		rb_raise (rb_eStandardError, "No Mapper Chunk");
	return rb_str_new (chunk, _length);
}


  








  

    #size  
  



  

    
mapper_size


  



  [ GitHub ]


  

  


# File 'ext/fastfilereader/rubymain.cpp', line 99



static VALUE mapper_size (VALUE self)
{
	Mapper_t *m = NULL;
	Data_Get_Struct (self, Mapper_t, m);
	if (!m)
		rb_raise (rb_eStandardError, "No Mapper Object");
	return INT2NUM (m->GetFileSize());
}