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synced 2022-11-09 12:17:21 -05:00
8812fe1a97
the argument is an instance of DL::CFunc. * ext/dl/cptr.c (rb_dlptr_initialize, rb_dlptr_s_malloc): checks if DL::CFunc. [ruby-dev:38403]. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23385 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
532 lines
12 KiB
C
532 lines
12 KiB
C
/* -*- C -*-
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* $Id$
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*/
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#include <ruby.h>
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#include <errno.h>
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#include "dl.h"
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VALUE rb_cDLCFunc;
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static ID id_last_error;
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static VALUE
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rb_dl_get_last_error(VALUE self)
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{
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return rb_thread_local_aref(rb_thread_current(), id_last_error);
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}
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static VALUE
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rb_dl_set_last_error(VALUE self, VALUE val)
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{
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rb_thread_local_aset(rb_thread_current(), id_last_error, val);
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return Qnil;
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}
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#if defined(HAVE_WINDOWS_H)
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#include <windows.h>
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static ID id_win32_last_error;
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static VALUE
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rb_dl_get_win32_last_error(VALUE self)
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{
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return rb_thread_local_aref(rb_thread_current(), id_win32_last_error);
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}
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static VALUE
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rb_dl_set_win32_last_error(VALUE self, VALUE val)
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{
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rb_thread_local_aset(rb_thread_current(), id_win32_last_error, val);
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return Qnil;
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}
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#endif
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void
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dlcfunc_free(void *ptr)
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{
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struct cfunc_data *data = ptr;
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if( data->name ){
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xfree(data->name);
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}
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xfree(data);
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}
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VALUE
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rb_dlcfunc_new(void (*func)(), int type, const char *name, ID calltype)
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{
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VALUE val;
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struct cfunc_data *data;
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rb_secure(4);
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if( func ){
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val = Data_Make_Struct(rb_cDLCFunc, struct cfunc_data, 0, dlcfunc_free, data);
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data->ptr = func;
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data->name = name ? strdup(name) : NULL;
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data->type = type;
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data->calltype = calltype;
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}
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else{
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val = Qnil;
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}
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return val;
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}
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void *
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rb_dlcfunc2ptr(VALUE val)
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{
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struct cfunc_data *data;
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void * func;
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if( rb_obj_is_kind_of(val, rb_cDLCFunc) ){
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Data_Get_Struct(val, struct cfunc_data, data);
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func = data->ptr;
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}
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else if( val == Qnil ){
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func = NULL;
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}
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else{
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rb_raise(rb_eTypeError, "DL::CFunc was expected");
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}
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return func;
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}
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VALUE
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rb_dlcfunc_s_allocate(VALUE klass)
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{
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VALUE obj;
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struct cfunc_data *data;
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obj = Data_Make_Struct(klass, struct cfunc_data, 0, dlcfunc_free, data);
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data->ptr = 0;
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data->name = 0;
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data->type = 0;
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data->calltype = CFUNC_CDECL;
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return obj;
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}
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int
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rb_dlcfunc_kind_p(VALUE func)
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{
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if (TYPE(func) == T_DATA) return 0;
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return RDATA(func)->dfree == dlcfunc_free;
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}
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VALUE
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rb_dlcfunc_initialize(int argc, VALUE argv[], VALUE self)
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{
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VALUE addr, name, type, calltype;
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struct cfunc_data *data;
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void *saddr;
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const char *sname;
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rb_scan_args(argc, argv, "13", &addr, &type, &name, &calltype);
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saddr = (void*)(NUM2PTR(rb_Integer(addr)));
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sname = NIL_P(name) ? NULL : StringValuePtr(name);
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Data_Get_Struct(self, struct cfunc_data, data);
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if( data->name ) xfree(data->name);
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data->ptr = saddr;
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data->name = sname ? strdup(sname) : 0;
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data->type = (type == Qnil) ? DLTYPE_VOID : NUM2INT(type);
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data->calltype = (calltype == Qnil) ? CFUNC_CDECL : SYM2ID(calltype);
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return Qnil;
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}
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VALUE
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rb_dlcfunc_name(VALUE self)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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return cfunc->name ? rb_tainted_str_new2(cfunc->name) : Qnil;
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}
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VALUE
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rb_dlcfunc_ctype(VALUE self)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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return INT2NUM(cfunc->type);
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}
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VALUE
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rb_dlcfunc_set_ctype(VALUE self, VALUE ctype)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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cfunc->type = NUM2INT(ctype);
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return ctype;
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}
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VALUE
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rb_dlcfunc_calltype(VALUE self)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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return ID2SYM(cfunc->calltype);
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}
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VALUE
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rb_dlcfunc_set_calltype(VALUE self, VALUE sym)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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cfunc->calltype = SYM2ID(sym);
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return sym;
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}
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VALUE
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rb_dlcfunc_ptr(VALUE self)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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return PTR2NUM(cfunc->ptr);
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}
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VALUE
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rb_dlcfunc_set_ptr(VALUE self, VALUE addr)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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cfunc->ptr = NUM2PTR(addr);
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return Qnil;
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}
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VALUE
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rb_dlcfunc_inspect(VALUE self)
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{
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VALUE val;
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char *str;
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int str_size;
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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str_size = (cfunc->name ? strlen(cfunc->name) : 0) + 100;
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str = ruby_xmalloc(str_size);
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snprintf(str, str_size - 1,
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"#<DL::CFunc:%p ptr=%p type=%d name='%s'>",
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cfunc,
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cfunc->ptr,
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cfunc->type,
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cfunc->name ? cfunc->name : "");
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val = rb_tainted_str_new2(str);
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ruby_xfree(str);
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return val;
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}
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# define DECL_FUNC_CDECL(f,ret,args) ret (FUNC_CDECL(*f))(args)
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#ifdef FUNC_STDCALL
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# define DECL_FUNC_STDCALL(f,ret,args) ret (FUNC_STDCALL(*f))(args)
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#endif
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#define CALL_CASE switch( RARRAY_LEN(ary) ){ \
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CASE(0); break; \
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CASE(1); break; CASE(2); break; CASE(3); break; CASE(4); break; CASE(5); break; \
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CASE(6); break; CASE(7); break; CASE(8); break; CASE(9); break; CASE(10);break; \
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CASE(11);break; CASE(12);break; CASE(13);break; CASE(14);break; CASE(15);break; \
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CASE(16);break; CASE(17);break; CASE(18);break; CASE(19);break; CASE(20);break; \
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default: rb_raise(rb_eArgError, "too many arguments"); \
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}
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VALUE
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rb_dlcfunc_call(VALUE self, VALUE ary)
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{
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struct cfunc_data *cfunc;
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int i;
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DLSTACK_TYPE stack[DLSTACK_SIZE];
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VALUE result = Qnil;
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rb_secure_update(self);
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memset(stack, 0, sizeof(DLSTACK_TYPE) * DLSTACK_SIZE);
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Check_Type(ary, T_ARRAY);
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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if( cfunc->ptr == 0 ){
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rb_raise(rb_eDLError, "can't call null-function");
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return Qnil;
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}
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for( i = 0; i < RARRAY_LEN(ary); i++ ){
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if( i >= DLSTACK_SIZE ){
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rb_raise(rb_eDLError, "too many arguments (stack overflow)");
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}
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rb_check_safe_obj(RARRAY_PTR(ary)[i]);
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stack[i] = NUM2LONG(RARRAY_PTR(ary)[i]);
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}
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/* calltype == CFUNC_CDECL */
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if( cfunc->calltype == CFUNC_CDECL
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#ifndef FUNC_STDCALL
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|| cfunc->calltype == CFUNC_STDCALL
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#endif
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){
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switch( cfunc->type ){
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case DLTYPE_VOID:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,void,DLSTACK_PROTO##n) = cfunc->ptr; \
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f(DLSTACK_ARGS##n(stack)); \
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result = Qnil; \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_VOIDP:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,void*,DLSTACK_PROTO##n) = cfunc->ptr; \
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void * ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = PTR2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_CHAR:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,char,DLSTACK_PROTO##n) = cfunc->ptr; \
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char ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = CHR2FIX(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_SHORT:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,short,DLSTACK_PROTO##n) = cfunc->ptr; \
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short ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = INT2NUM((int)ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_INT:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,int,DLSTACK_PROTO##n) = cfunc->ptr; \
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int ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = INT2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_LONG:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,long,DLSTACK_PROTO##n) = cfunc->ptr; \
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long ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = LONG2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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#if HAVE_LONG_LONG /* used in ruby.h */
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case DLTYPE_LONG_LONG:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,LONG_LONG,DLSTACK_PROTO##n) = cfunc->ptr; \
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LONG_LONG ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = LL2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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#endif
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case DLTYPE_FLOAT:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,float,DLSTACK_PROTO##n) = cfunc->ptr; \
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float ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = rb_float_new(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_DOUBLE:
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#define CASE(n) case n: { \
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DECL_FUNC_CDECL(f,double,DLSTACK_PROTO##n) = cfunc->ptr; \
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double ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = rb_float_new(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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default:
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rb_raise(rb_eDLTypeError, "unknown type %d", cfunc->type);
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}
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}
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#ifdef FUNC_STDCALL
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else if( cfunc->calltype == CFUNC_STDCALL ){
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/* calltype == CFUNC_STDCALL */
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switch( cfunc->type ){
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case DLTYPE_VOID:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,void,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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f(DLSTACK_ARGS##n(stack)); \
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result = Qnil; \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_VOIDP:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,void*,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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void * ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = PTR2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_CHAR:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,char,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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char ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = CHR2FIX(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_SHORT:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,short,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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short ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = INT2NUM((int)ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_INT:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,int,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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int ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = INT2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_LONG:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,long,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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long ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = LONG2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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#if HAVE_LONG_LONG /* used in ruby.h */
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case DLTYPE_LONG_LONG:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,LONG_LONG,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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LONG_LONG ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = LL2NUM(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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#endif
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case DLTYPE_FLOAT:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,float,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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float ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = rb_float_new(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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case DLTYPE_DOUBLE:
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#define CASE(n) case n: { \
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DECL_FUNC_STDCALL(f,double,DLSTACK_PROTO##n##_) = cfunc->ptr; \
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double ret; \
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ret = f(DLSTACK_ARGS##n(stack)); \
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result = rb_float_new(ret); \
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}
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CALL_CASE;
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#undef CASE
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break;
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default:
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rb_raise(rb_eDLTypeError, "unknown type %d", cfunc->type);
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}
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}
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#endif
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else{
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rb_raise(rb_eDLError,
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#ifndef LONG_LONG_VALUE
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"unsupported call type: %lx",
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#else
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"unsupported call type: %llx",
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#endif
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cfunc->calltype);
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}
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rb_dl_set_last_error(self, INT2NUM(errno));
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#if defined(HAVE_WINDOWS_H)
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rb_dl_set_win32_last_error(self, INT2NUM(GetLastError()));
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#endif
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return result;
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}
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VALUE
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rb_dlcfunc_to_i(VALUE self)
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{
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struct cfunc_data *cfunc;
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Data_Get_Struct(self, struct cfunc_data, cfunc);
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return PTR2NUM(cfunc->ptr);
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}
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void
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Init_dlcfunc(void)
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{
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id_last_error = rb_intern("__DL2_LAST_ERROR__");
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#if defined(HAVE_WINDOWS_H)
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id_win32_last_error = rb_intern("__DL2_WIN32_LAST_ERROR__");
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#endif
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rb_cDLCFunc = rb_define_class_under(rb_mDL, "CFunc", rb_cObject);
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rb_define_alloc_func(rb_cDLCFunc, rb_dlcfunc_s_allocate);
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rb_define_module_function(rb_cDLCFunc, "last_error", rb_dl_get_last_error, 0);
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#if defined(HAVE_WINDOWS_H)
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rb_define_module_function(rb_cDLCFunc, "win32_last_error", rb_dl_get_win32_last_error, 0);
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#endif
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rb_define_method(rb_cDLCFunc, "initialize", rb_dlcfunc_initialize, -1);
|
|
rb_define_method(rb_cDLCFunc, "call", rb_dlcfunc_call, 1);
|
|
rb_define_method(rb_cDLCFunc, "[]", rb_dlcfunc_call, 1);
|
|
rb_define_method(rb_cDLCFunc, "name", rb_dlcfunc_name, 0);
|
|
rb_define_method(rb_cDLCFunc, "ctype", rb_dlcfunc_ctype, 0);
|
|
rb_define_method(rb_cDLCFunc, "ctype=", rb_dlcfunc_set_ctype, 1);
|
|
rb_define_method(rb_cDLCFunc, "calltype", rb_dlcfunc_calltype, 0);
|
|
rb_define_method(rb_cDLCFunc, "calltype=", rb_dlcfunc_set_calltype, 1);
|
|
rb_define_method(rb_cDLCFunc, "ptr", rb_dlcfunc_ptr, 0);
|
|
rb_define_method(rb_cDLCFunc, "ptr=", rb_dlcfunc_set_ptr, 1);
|
|
rb_define_method(rb_cDLCFunc, "inspect", rb_dlcfunc_inspect, 0);
|
|
rb_define_method(rb_cDLCFunc, "to_s", rb_dlcfunc_inspect, 0);
|
|
rb_define_method(rb_cDLCFunc, "to_i", rb_dlcfunc_to_i, 0);
|
|
}
|