127 lines
2.9 KiB
C++
127 lines
2.9 KiB
C++
/*****************************************************************************
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$Id: rubymain.cpp 4529 2007-07-04 11:32:22Z francis $
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File: rubymain.cpp
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Date: 02Jul07
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Copyright (C) 2007 by Francis Cianfrocca. All Rights Reserved.
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Gmail: garbagecat10
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This program is free software; you can redistribute it and/or modify
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it under the terms of either: 1) the GNU General Public License
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as published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version; or 2) Ruby's License.
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See the file COPYING for complete licensing information.
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*****************************************************************************/
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#include <iostream>
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#include <stdexcept>
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#include <ruby.h>
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#include "mapper.h"
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static VALUE EmModule;
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static VALUE FastFileReader;
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static VALUE Mapper;
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/*********
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mapper_dt
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*********/
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static void mapper_dt (void *ptr)
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{
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if (ptr)
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delete (Mapper_t*) ptr;
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}
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/**********
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mapper_new
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**********/
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static VALUE mapper_new (VALUE self, VALUE filename)
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{
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Mapper_t *m = new Mapper_t (StringValueCStr (filename));
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if (!m)
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rb_raise (rb_eStandardError, "No Mapper Object");
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VALUE v = Data_Wrap_Struct (Mapper, 0, mapper_dt, (void*)m);
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return v;
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}
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/****************
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mapper_get_chunk
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****************/
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static VALUE mapper_get_chunk (VALUE self, VALUE start, VALUE length)
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{
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Mapper_t *m = NULL;
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Data_Get_Struct (self, Mapper_t, m);
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if (!m)
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rb_raise (rb_eStandardError, "No Mapper Object");
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// TODO, what if some moron sends us a negative start value?
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unsigned _start = NUM2INT (start);
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unsigned _length = NUM2INT (length);
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if ((_start + _length) > m->GetFileSize())
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rb_raise (rb_eStandardError, "Mapper Range Error");
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const char *chunk = m->GetChunk (_start);
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if (!chunk)
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rb_raise (rb_eStandardError, "No Mapper Chunk");
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return rb_str_new (chunk, _length);
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}
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/************
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mapper_close
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************/
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static VALUE mapper_close (VALUE self)
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{
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Mapper_t *m = NULL;
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Data_Get_Struct (self, Mapper_t, m);
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if (!m)
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rb_raise (rb_eStandardError, "No Mapper Object");
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m->Close();
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return Qnil;
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}
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/***********
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mapper_size
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***********/
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static VALUE mapper_size (VALUE self)
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{
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Mapper_t *m = NULL;
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Data_Get_Struct (self, Mapper_t, m);
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if (!m)
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rb_raise (rb_eStandardError, "No Mapper Object");
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return INT2NUM (m->GetFileSize());
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}
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/**********************
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Init_fastfilereaderext
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**********************/
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extern "C" void Init_fastfilereaderext()
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{
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EmModule = rb_define_module ("EventMachine");
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FastFileReader = rb_define_class_under (EmModule, "FastFileReader", rb_cObject);
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Mapper = rb_define_class_under (FastFileReader, "Mapper", rb_cObject);
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rb_define_module_function (Mapper, "new", (VALUE(*)(...))mapper_new, 1);
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rb_define_method (Mapper, "size", (VALUE(*)(...))mapper_size, 0);
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rb_define_method (Mapper, "close", (VALUE(*)(...))mapper_close, 0);
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rb_define_method (Mapper, "get_chunk", (VALUE(*)(...))mapper_get_chunk, 2);
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}
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