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.SUFFIXES: | ||
.SUFFIXES: .gem .o .cc .hh .rb .tar .gz .bz2 | ||
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RUBY_VERSION = 1.8 | ||
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GEM = gem$(RUBY_VERSION) | ||
RUBY = ruby$(RUBY_VERSION) | ||
TAR = tar | ||
TEST = -t | ||
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MAIN = Makefile malloc.gemspec README COPYING | ||
EXT = ext/extconf.rb $(wildcard ext/*.cc) $(wildcard ext/*.hh) | ||
LIB = $(wildcard lib/*.rb) | ||
TESTS = $(wildcard tests/*.rb) | ||
DOC = $(wildcard doc/*.rb) | ||
SOURCES = $(MAIN) $(EXT) $(LIB) $(TESTS) $(DOC) | ||
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all:: malloc-1.0.0-x86-linux.gem | ||
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check:: ext/malloc.so $(LIB) $(TESTS) | ||
$(RUBY) -Iext -Ilib $(TESTS) | ||
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install:: malloc-1.0.0-x86-linux.gem | ||
$(GEM) install $(TEST) $< | ||
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uninstall:: | ||
$(GEM) uninstall malloc || echo Nothing to uninstall | ||
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dist:: malloc.tar.gz | ||
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dist-gzip:: malloc.tar.gz | ||
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dist-bzip2:: malloc.tar.bz2 | ||
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malloc-1.0.0-x86-linux.gem: malloc.gemspec README $(EXT) $(LIB) $(TESTS) $(DOC) | ||
$(GEM) build malloc.gemspec | ||
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ext/Makefile: ext/extconf.rb | ||
cd ext && $(RUBY) extconf.rb && cd .. | ||
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ext/malloc.so: ext/Makefile $(EXT) | ||
cd ext && $(MAKE) && cd .. | ||
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malloc.tar.gz: $(SOURCES) | ||
$(TAR) czf $@ $(SOURCES) | ||
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malloc.tar.bz2: $(SOURCES) | ||
$(TAR) cjf $@ $(SOURCES) | ||
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clean:: | ||
rm -f *~ ext/*~ ext/*.o ext/*.so ext/Makefile lib/*~ lib/*.so tests/*~ doc/*~ *.gem |
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http://rubyforge.org/tracker/index.php?func=detail&aid=27502&group_id=126&atid=575 | ||
http://rubyforge.org/tracker/index.php?func=detail&aid=27503&group_id=126&atid=575 | ||
|
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/* HornetsEye - Computer Vision with Ruby | ||
Copyright (C) 2006, 2007, 2008, 2009 Jan Wedekind | ||
This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
This program is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
GNU General Public License for more details. | ||
You should have received a copy of the GNU General Public License | ||
along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
#include "error.hh" | ||
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using namespace std; | ||
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string Error::temp; |
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/* HornetsEye - Computer Vision with Ruby | ||
Copyright (C) 2006, 2007, 2008, 2009 Jan Wedekind | ||
This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
This program is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
GNU General Public License for more details. | ||
You should have received a copy of the GNU General Public License | ||
along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
/* HornetsEye - Computer Vision with Ruby | ||
Copyright (C) 2006, 2007 Jan Wedekind | ||
This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
This program is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
GNU General Public License for more details. | ||
You should have received a copy of the GNU General Public License | ||
along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
#ifndef ERROR_HH | ||
#define ERROR_HH | ||
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#include <exception> | ||
#include <sstream> | ||
#include <string> | ||
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class Error: public std::exception | ||
{ | ||
public: | ||
Error(void) {} | ||
Error( Error &e ): std::exception( e ) | ||
{ m_message << e.m_message.str(); } | ||
virtual ~Error(void) throw() {} | ||
template< typename T > | ||
std::ostream &operator<<( const T &t ) | ||
{ m_message << t; return m_message; } | ||
std::ostream &operator<<( std::ostream& (*__pf)( std::ostream&) ) | ||
{ (*__pf)( m_message ); return m_message; } | ||
virtual const char* what(void) const throw() { | ||
temp = m_message.str(); | ||
return temp.c_str(); | ||
return NULL; | ||
} | ||
protected: | ||
std::ostringstream m_message; | ||
static std::string temp; | ||
}; | ||
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#define ERRORMACRO( condition, class, params, message ) \ | ||
if ( !( condition ) ) { \ | ||
class _e params; \ | ||
_e << message; \ | ||
throw _e; \ | ||
}; | ||
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#endif |
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require 'mkmf' | ||
CONFIG[ 'LDSHARED' ] = "$(CXX) -shared" | ||
create_makefile 'malloc' | ||
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/* HornetsEye - Computer Vision with Ruby | ||
Copyright (C) 2006, 2007, 2008, 2009 Jan Wedekind | ||
This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
This program is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
GNU General Public License for more details. | ||
You should have received a copy of the GNU General Public License | ||
along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
#include "malloc.hh" | ||
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#ifdef WIN32 | ||
#define DLLEXPORT __declspec(dllexport) | ||
#define DLLLOCAL | ||
#else | ||
#define DLLEXPORT __attribute__ ((visibility("default"))) | ||
#define DLLLOCAL __attribute__ ((visibility("hidden"))) | ||
#endif | ||
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extern "C" DLLEXPORT void Init_malloc(void); | ||
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extern "C" { | ||
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void Init_malloc(void) | ||
{ | ||
Malloc::init(); | ||
rb_require( "malloc_ext.rb" ); | ||
} | ||
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} |
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/* HornetsEye - Computer Vision with Ruby | ||
Copyright (C) 2006, 2007, 2008, 2009 Jan Wedekind | ||
This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
This program is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
GNU General Public License for more details. | ||
You should have received a copy of the GNU General Public License | ||
along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
#include "error.hh" | ||
#include "malloc.hh" | ||
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#include <iostream> | ||
using namespace std; | ||
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#ifdef WIN32 | ||
#define DLLEXPORT __declspec(dllexport) | ||
#define DLLLOCAL | ||
#else | ||
#define DLLEXPORT __attribute__ ((visibility("default"))) | ||
#define DLLLOCAL __attribute__ ((visibility("hidden"))) | ||
#endif | ||
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VALUE Malloc::cRubyClass = Qnil; | ||
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VALUE Malloc::init(void) | ||
{ | ||
cRubyClass = rb_define_class( "Malloc", rb_cObject ); | ||
rb_define_singleton_method( cRubyClass, "new", | ||
RUBY_METHOD_FUNC( mallocNew ), 1 ); | ||
rb_define_method( cRubyClass, "+", | ||
RUBY_METHOD_FUNC( mallocPlus ), 1 ); | ||
rb_define_method( cRubyClass, "read", | ||
RUBY_METHOD_FUNC( mallocRead ), 1 ); | ||
rb_define_method( cRubyClass, "write", | ||
RUBY_METHOD_FUNC( mallocWrite ), 1 ); | ||
return cRubyClass; | ||
} | ||
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VALUE Malloc::mallocNew( VALUE rbClass, VALUE rbSize ) | ||
{ | ||
VALUE retVal = Qnil; | ||
try { | ||
unsigned int size = NUM2UINT( rbSize ); | ||
char *self = ALLOC_N( char, size ); | ||
ERRORMACRO( self != NULL, Error, , "Failed to allocate " << size | ||
<< " bytes of memory" ); | ||
retVal = Data_Wrap_Struct( rbClass, 0, xfree, (void *)self ); | ||
} catch( std::exception &e ) { | ||
rb_raise( rb_eRuntimeError, e.what() ); | ||
}; | ||
return retVal; | ||
} | ||
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VALUE Malloc::mallocPlus( VALUE rbSelf, VALUE rbOffset ) | ||
{ | ||
VALUE retVal = Qnil; | ||
try { | ||
char *self; Data_Get_Struct( rbSelf, char, self ); | ||
int offset = NUM2INT( rbOffset ); | ||
ERRORMACRO( offset >= 0, Error, , "Offset must be non-negative (but was " | ||
<< offset << ')' ); | ||
retVal = Data_Wrap_Struct( cRubyClass, 0, 0, (void *)( self + offset ) ); | ||
} catch( std::exception &e ) { | ||
rb_raise( rb_eRuntimeError, e.what() ); | ||
}; | ||
return retVal; | ||
} | ||
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VALUE Malloc::mallocRead( VALUE rbSelf, VALUE rbLength ) | ||
{ | ||
char *self; Data_Get_Struct( rbSelf, char, self ); | ||
unsigned int length = NUM2UINT( rbLength ); | ||
return rb_str_new( self, length ); | ||
} | ||
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VALUE Malloc::mallocWrite( VALUE rbSelf, VALUE rbString ) | ||
{ | ||
char *self; Data_Get_Struct( rbSelf, char, self ); | ||
memcpy( self, StringValuePtr( rbString ), RSTRING_LEN( rbString ) ); | ||
return rbString; | ||
} |
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/* HornetsEye - Computer Vision with Ruby | ||
Copyright (C) 2006, 2007, 2008, 2009 Jan Wedekind | ||
This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
This program is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
GNU General Public License for more details. | ||
You should have received a copy of the GNU General Public License | ||
along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
#ifndef MALLOC_HH | ||
#define MALLOC_HH | ||
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#include <ruby.h> | ||
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class Malloc | ||
{ | ||
public: | ||
static VALUE cRubyClass; | ||
static VALUE init(void); | ||
static VALUE mallocNew( VALUE rbClass, VALUE rbSize ); | ||
static VALUE mallocPlus( VALUE rbSelf, VALUE rbOffset ); | ||
static VALUE mallocRead( VALUE rbSelf, VALUE rbLength ); | ||
static VALUE mallocWrite( VALUE rbSelf, VALUE rbString ); | ||
}; | ||
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#endif |
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class String | ||
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unless method_defined? :bytesize | ||
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def bytesize | ||
size | ||
end | ||
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end | ||
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end | ||
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class Malloc | ||
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class << self | ||
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alias_method :orig_new, :new | ||
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def new( size ) | ||
retval = orig_new size | ||
retval.instance_eval { @size = size } | ||
retval | ||
end | ||
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end | ||
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attr_reader :size | ||
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alias_method :orig_plus, :+ | ||
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def +( offset ) | ||
if offset > @size | ||
raise "Offset must not be more than #{@size} (but was #{offset})" | ||
end | ||
mark, size = self, @size - offset | ||
retval = orig_plus offset | ||
retval.instance_eval { @mark, @size = mark, size } | ||
retval | ||
end | ||
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alias_method :orig_read, :read | ||
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def read( length ) | ||
raise "Only #{@size} bytes of memory left to read " + | ||
"(illegal attempt to read #{length} bytes)" if length > @size | ||
orig_read length | ||
end | ||
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alias_method :orig_write, :write | ||
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def write( string ) | ||
if string.bytesize > @size | ||
raise "Must not write more than #{@size} bytes of memory " + | ||
"(illegal attempt to write #{string.bytesize} bytes)" | ||
end | ||
orig_write string | ||
end | ||
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end |
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