зеркало из https://github.com/github/ruby.git
766 строки
15 KiB
C
766 строки
15 KiB
C
/* -*- C -*-
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* $Id$
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*/
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#include <ruby.h>
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#include "dl.h"
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VALUE rb_cDLSymbol;
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#ifndef HAVE_RB_STR_CAT2
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static VALUE
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rb_str_cat2(VALUE str, const char *s)
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{
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return rb_str_cat(str, s, strlen(s));
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}
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#endif
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static const char *
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char2type(int ch)
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{
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switch (ch) {
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case '0':
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return "void";
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case 'P':
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return "void *";
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case 'p':
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return "void *";
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case 'C':
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return "char";
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case 'c':
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return "char *";
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case 'H':
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return "short";
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case 'h':
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return "short *";
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case 'I':
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return "int";
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case 'i':
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return "int *";
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case 'L':
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return "long";
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case 'l':
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return "long *";
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case 'F':
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return "double";
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case 'f':
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return "double *";
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case 'D':
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return "double";
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case 'd':
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return "double *";
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case 'S':
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return "const char *";
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case 's':
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return "char *";
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case 'A':
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return "[]";
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case 'a':
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return "[]"; /* ?? */
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};
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return NULL;
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}
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void
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dlsym_free(struct sym_data *data)
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{
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if( data->name ){
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DEBUG_CODE({
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printf("dlsym_free(): free(data->name:%s)\n",data->name);
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});
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free(data->name);
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};
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if( data->type ){
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DEBUG_CODE({
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printf("dlsym_free(): free(data->type:%s)\n",data->type);
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});
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free(data->type);
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};
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}
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VALUE
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rb_dlsym_new(void (*func)(), const char *name, const char *type)
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{
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VALUE val;
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struct sym_data *data;
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const char *ptype;
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if( !type || !type[0] ){
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return rb_dlptr_new((void*)func, 0, 0);
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};
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for( ptype = type; *ptype; ptype ++ ){
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if( ! char2type(*ptype) ){
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rb_raise(rb_eDLTypeError, "unknown type specifier '%c'", *ptype);
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};
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};
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if( func ){
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val = Data_Make_Struct(rb_cDLSymbol, struct sym_data, 0, dlsym_free, data);
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data->func = func;
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data->name = name ? strdup(name) : NULL;
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data->type = type ? strdup(type) : NULL;
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data->len = type ? strlen(type) : 0;
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#ifndef USE_INLINE_ASM
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if( data->len - 1 > MAX_ARG ){
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rb_raise(rb_eDLError, "maximum number of arguments is %d.", MAX_ARG);
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};
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#endif
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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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freefunc_t
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rb_dlsym2csym(VALUE val)
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{
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struct sym_data *data;
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freefunc_t func;
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if( rb_obj_is_kind_of(val, rb_cDLSymbol) ){
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Data_Get_Struct(val, struct sym_data, data);
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func = data->func;
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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::Symbol 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_dlsym_s_new(int argc, VALUE argv[], VALUE self)
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{
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VALUE addr, name, type;
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VALUE val;
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void *saddr;
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const char *sname, *stype;
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rb_scan_args(argc, argv, "12", &addr, &name, &type);
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saddr = (void*)(DLNUM2LONG(rb_Integer(addr)));
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sname = NIL_P(name) ? NULL : StringValuePtr(name);
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stype = NIL_P(type) ? NULL : StringValuePtr(type);
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val = rb_dlsym_new(saddr, sname, stype);
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if( val != Qnil ){
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rb_obj_call_init(val, argc, argv);
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};
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return val;
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}
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VALUE
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rb_dlsym_initialize(int argc, VALUE argv[], VALUE self)
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{
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return Qnil;
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}
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VALUE
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rb_s_dlsym_char2type(VALUE self, VALUE ch)
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{
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const char *type;
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type = char2type(StringValuePtr(ch)[0]);
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if (type == NULL)
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return Qnil;
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else
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return rb_str_new2(type);
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}
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VALUE
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rb_dlsym_name(VALUE self)
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{
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struct sym_data *sym;
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Data_Get_Struct(self, struct sym_data, sym);
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return sym->name ? rb_tainted_str_new2(sym->name) : Qnil;
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}
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VALUE
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rb_dlsym_proto(VALUE self)
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{
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struct sym_data *sym;
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Data_Get_Struct(self, struct sym_data, sym);
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return sym->type ? rb_tainted_str_new2(sym->type) : Qnil;
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}
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VALUE
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rb_dlsym_cproto(VALUE self)
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{
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struct sym_data *sym;
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const char *ptype, *typestr;
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size_t len;
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VALUE val;
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Data_Get_Struct(self, struct sym_data, sym);
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ptype = sym->type;
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if( ptype ){
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typestr = char2type(*ptype++);
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len = strlen(typestr);
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val = rb_tainted_str_new(typestr, len);
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if (typestr[len - 1] != '*')
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rb_str_cat(val, " ", 1);
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if( sym->name ){
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rb_str_cat2(val, sym->name);
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}
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else{
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rb_str_cat2(val, "(null)");
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};
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rb_str_cat(val, "(", 1);
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while (*ptype) {
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const char *ty = char2type(*ptype++);
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rb_str_cat2(val, ty);
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if (*ptype)
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rb_str_cat(val, ", ", 2);
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}
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rb_str_cat(val, ");", 2);
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}
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else{
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val = rb_tainted_str_new2("void (");
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if( sym->name ){
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rb_str_cat2(val, sym->name);
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}
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else{
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rb_str_cat2(val, "(null)");
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};
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rb_str_cat2(val, ")()");
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};
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return val;
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}
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VALUE
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rb_dlsym_inspect(VALUE self)
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{
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VALUE proto;
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VALUE val;
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char *str;
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int str_size;
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struct sym_data *sym;
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Data_Get_Struct(self, struct sym_data, sym);
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proto = rb_dlsym_cproto(self);
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str_size = RSTRING(proto)->len + 100;
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str = dlmalloc(str_size);
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snprintf(str, str_size - 1,
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"#<DL::Symbol:0x%x func=0x%x '%s'>",
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sym, sym->func, RSTRING(proto)->ptr);
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val = rb_tainted_str_new2(str);
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dlfree(str);
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return val;
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}
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VALUE
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rb_dlsym_call(int argc, VALUE argv[], VALUE self)
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{
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struct sym_data *sym;
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ANY_TYPE *args;
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ANY_TYPE *dargs;
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ANY_TYPE ret;
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int *dtypes;
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VALUE val;
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VALUE dvals;
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int i;
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long ftype;
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void *func;
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Data_Get_Struct(self, struct sym_data, sym);
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DEBUG_CODE({
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printf("rb_dlsym_call(): type = '%s', func = 0x%x\n", sym->type, sym->func);
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});
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if( (sym->len - 1) != argc ){
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rb_raise(rb_eArgError, "%d arguments are needed", sym->len - 1);
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};
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ftype = 0;
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dvals = Qnil;
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args = ALLOC_N(ANY_TYPE, sym->len - 1);
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dargs = ALLOC_N(ANY_TYPE, sym->len - 1);
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dtypes = ALLOC_N(int, sym->len - 1);
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#define FREE_ARGS {xfree(args); xfree(dargs); xfree(dtypes);}
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for( i = sym->len - 2; i >= 0; i-- ){
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dtypes[i] = 0;
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switch( sym->type[i+1] ){
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case 'p':
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dtypes[i] = 'p';
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case 'P':
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{
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struct ptr_data *data;
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VALUE pval;
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if( argv[i] == Qnil ){
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ANY2P(args[i]) = DLVOIDP(0);
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}
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else{
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if( rb_obj_is_kind_of(argv[i], rb_cDLPtrData) ){
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pval = argv[i];
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}
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else{
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pval = rb_funcall(argv[i], rb_intern("to_ptr"), 0);
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if( !rb_obj_is_kind_of(pval, rb_cDLPtrData) ){
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rb_raise(rb_eDLTypeError, "unexpected type of argument #%d", i);
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};
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};
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Data_Get_Struct(pval, struct ptr_data, data);
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ANY2P(args[i]) = DLVOIDP(data->ptr);
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};
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};
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PUSH_P(ftype);
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break;
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case 'a':
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dtypes[i] = 'a';
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case 'A':
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if( argv[i] == Qnil ){
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ANY2P(args[i]) = DLVOIDP(0);
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}
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else{
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ANY2P(args[i]) = DLVOIDP(rb_ary2cary(0, argv[i], NULL));
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};
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PUSH_P(ftype);
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break;
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case 'C':
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ANY2C(args[i]) = DLCHAR(NUM2CHR(argv[i]));
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PUSH_C(ftype);
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break;
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case 'c':
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ANY2C(dargs[i]) = DLCHAR(NUM2CHR(argv[i]));
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ANY2P(args[i]) = DLVOIDP(&(ANY2C(dargs[i])));
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dtypes[i] = 'c';
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PUSH_P(ftype);
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break;
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case 'H':
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ANY2H(args[i]) = DLSHORT(NUM2CHR(argv[i]));
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PUSH_C(ftype);
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break;
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case 'h':
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ANY2H(dargs[i]) = DLSHORT(NUM2CHR(argv[i]));
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ANY2P(args[i]) = DLVOIDP(&(ANY2H(dargs[i])));
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dtypes[i] = 'h';
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PUSH_P(ftype);
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break;
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case 'I':
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ANY2I(args[i]) = DLINT(NUM2INT(argv[i]));
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PUSH_I(ftype);
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break;
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case 'i':
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ANY2I(dargs[i]) = DLINT(NUM2INT(argv[i]));
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ANY2P(args[i]) = DLVOIDP(&(ANY2I(dargs[i])));
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dtypes[i] = 'i';
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PUSH_P(ftype);
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break;
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case 'L':
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ANY2L(args[i]) = DLNUM2LONG(argv[i]);
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PUSH_L(ftype);
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break;
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case 'l':
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ANY2L(dargs[i]) = DLNUM2LONG(argv[i]);
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ANY2P(args[i]) = DLVOIDP(&(ANY2L(dargs[i])));
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dtypes[i] = 'l';
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PUSH_P(ftype);
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break;
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case 'F':
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Check_Type(argv[i], T_FLOAT);
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ANY2F(args[i]) = DLFLOAT(RFLOAT(argv[i])->value);
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PUSH_F(ftype);
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break;
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case 'f':
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Check_Type(argv[i], T_FLOAT);
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ANY2F(dargs[i]) = DLFLOAT(RFLOAT(argv[i])->value);
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ANY2P(args[i]) = DLVOIDP(&(ANY2F(dargs[i])));
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dtypes[i] = 'f';
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PUSH_P(ftype);
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break;
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case 'D':
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Check_Type(argv[i], T_FLOAT);
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ANY2D(args[i]) = RFLOAT(argv[i])->value;
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PUSH_D(ftype);
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break;
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case 'd':
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Check_Type(argv[i], T_FLOAT);
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ANY2D(dargs[i]) = RFLOAT(argv[i])->value;
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ANY2P(args[i]) = DLVOIDP(&(ANY2D(dargs[i])));
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dtypes[i] = 'd';
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PUSH_P(ftype);
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break;
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case 'S':
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if( argv[i] == Qnil ){
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ANY2S(args[i]) = DLSTR(0);
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}
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else{
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if( TYPE(argv[i]) != T_STRING ){
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rb_raise(rb_eDLError, "#%d must be a string",i);
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};
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ANY2S(args[i]) = DLSTR(RSTRING(argv[i])->ptr);
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};
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PUSH_P(ftype);
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break;
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case 's':
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if( TYPE(argv[i]) != T_STRING ){
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rb_raise(rb_eDLError, "#%d must be a string",i);
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};
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ANY2S(args[i]) = DLSTR(dlmalloc(RSTRING(argv[i])->len + 1));
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memcpy((char*)(ANY2S(args[i])), RSTRING(argv[i])->ptr, RSTRING(argv[i])->len + 1);
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dtypes[i] = 's';
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PUSH_P(ftype);
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break;
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default:
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FREE_ARGS;
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rb_raise(rb_eDLTypeError,
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"unknown type '%c' of the return value.",
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sym->type[i+1]);
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};
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};
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switch( sym->type[0] ){
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case '0':
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PUSH_0(ftype);
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break;
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case 'P':
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case 'p':
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case 'S':
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case 's':
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case 'A':
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case 'a':
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PUSH_P(ftype);
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break;
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case 'C':
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case 'c':
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PUSH_C(ftype);
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break;
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case 'H':
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case 'h':
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PUSH_H(ftype);
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break;
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case 'I':
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case 'i':
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PUSH_I(ftype);
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break;
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case 'L':
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case 'l':
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PUSH_L(ftype);
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break;
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case 'F':
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case 'f':
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PUSH_F(ftype);
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break;
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case 'D':
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case 'd':
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PUSH_D(ftype);
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break;
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default:
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FREE_ARGS;
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rb_raise(rb_eDLTypeError,
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"unknown type `%c' of the return value.",
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sym->type[0]);
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};
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func = sym->func;
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#ifdef USE_INLINE_ASM
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ASM_START(sym->type);
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for( i = sym->len - 2; i >= 0; i-- ){
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switch( sym->type[i+1] ){
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case 'p':
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case 'P':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'a':
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case 'A':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'C':
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ASM_PUSH_C(ANY2C(args[i]));
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break;
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case 'c':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'H':
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ASM_PUSH_H(ANY2H(args[i]));
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break;
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case 'h':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'I':
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ASM_PUSH_I(ANY2I(args[i]));
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break;
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case 'i':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'L':
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ASM_PUSH_L(ANY2L(args[i]));
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break;
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case 'l':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'F':
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ASM_PUSH_F(ANY2F(args[i]));
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break;
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case 'f':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'D':
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ASM_PUSH_D(ANY2D(args[i]));
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break;
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case 'd':
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ASM_PUSH_P(ANY2P(args[i]));
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break;
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case 'S':
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case 's':
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ASM_PUSH_P(ANY2S(args[i]));
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break;
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};
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}
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ASM_END(sym->type);
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{
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switch( sym->type[0] ){
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case '0':
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{
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void (*f)() = func;
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f();
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};
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break;
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case 'P':
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case 'p':
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{
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void * (*f)() = func;
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ret.p = f();
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};
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break;
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case 'C':
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case 'c':
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{
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char (*f)() = func;
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ret.c = f();
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};
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break;
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case 'H':
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case 'h':
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{
|
|
short (*f)() = func;
|
|
ret.h = f();
|
|
};
|
|
break;
|
|
case 'I':
|
|
case 'i':
|
|
{
|
|
int (*f)() = func;
|
|
ret.i = f();
|
|
};
|
|
break;
|
|
case 'L':
|
|
case 'l':
|
|
{
|
|
long (*f)() = func;
|
|
ret.l = f();
|
|
};
|
|
break;
|
|
case 'F':
|
|
case 'f':
|
|
{
|
|
float (*f)() = func;
|
|
ret.f = f();
|
|
};
|
|
break;
|
|
case 'D':
|
|
case 'd':
|
|
{
|
|
double (*f)() = func;
|
|
ret.d = f();
|
|
};
|
|
break;
|
|
case 'S':
|
|
case 's':
|
|
{
|
|
char * (*f)() = func;
|
|
ret.s = f();
|
|
};
|
|
break;
|
|
default:
|
|
FREE_ARGS;
|
|
rb_raise(rb_eDLTypeError, "unknown type `%c'", sym->type[0]);
|
|
};
|
|
};
|
|
#else
|
|
switch(ftype){
|
|
#include "call.func"
|
|
default:
|
|
FREE_ARGS;
|
|
rb_raise(rb_eDLTypeError, "unsupported function type `%s'", sym->type);
|
|
};
|
|
#endif
|
|
|
|
switch( sym->type[0] ){
|
|
case '0':
|
|
val = Qnil;
|
|
break;
|
|
case 'P':
|
|
val = rb_dlptr_new((void*)(ANY2P(ret)), 0, 0);
|
|
break;
|
|
case 'p':
|
|
val = rb_dlptr_new((void*)(ANY2P(ret)), 0, dlfree);
|
|
break;
|
|
case 'C':
|
|
case 'c':
|
|
val = CHR2FIX((char)(ANY2C(ret)));
|
|
break;
|
|
case 'H':
|
|
case 'h':
|
|
val = INT2NUM((short)(ANY2H(ret)));
|
|
break;
|
|
case 'I':
|
|
case 'i':
|
|
val = INT2NUM((int)(ANY2I(ret)));
|
|
break;
|
|
case 'L':
|
|
case 'l':
|
|
val = DLLONG2NUM((long)(ANY2L(ret)));
|
|
break;
|
|
case 'F':
|
|
case 'f':
|
|
val = rb_float_new((double)(ANY2F(ret)));
|
|
break;
|
|
case 'D':
|
|
case 'd':
|
|
val = rb_float_new((double)(ANY2D(ret)));
|
|
break;
|
|
case 'S':
|
|
if( ANY2S(ret) ){
|
|
val = rb_tainted_str_new2((char*)(ANY2S(ret)));
|
|
}
|
|
else{
|
|
val = Qnil;
|
|
};
|
|
break;
|
|
case 's':
|
|
if( ANY2S(ret) ){
|
|
val = rb_tainted_str_new2((char*)(ANY2S(ret)));
|
|
DEBUG_CODE({
|
|
printf("dlfree(%s)\n",(char*)(ANY2S(ret)));
|
|
});
|
|
dlfree((void*)(ANY2S(ret)));
|
|
}
|
|
else{
|
|
val = Qnil;
|
|
};
|
|
break;
|
|
default:
|
|
FREE_ARGS;
|
|
rb_raise(rb_eDLTypeError, "unknown type `%c'", sym->type[0]);
|
|
};
|
|
|
|
dvals = rb_ary_new();
|
|
for( i = 0; i <= sym->len - 2; i++ ){
|
|
if( dtypes[i] ){
|
|
switch( dtypes[i] ){
|
|
case 'c':
|
|
rb_ary_push(dvals, CHR2FIX(*((char*)(ANY2P(args[i])))));
|
|
break;
|
|
case 'h':
|
|
rb_ary_push(dvals, INT2NUM(*((short*)(ANY2P(args[i])))));
|
|
break;
|
|
case 'i':
|
|
rb_ary_push(dvals, INT2NUM(*((int*)(ANY2P(args[i])))));
|
|
break;
|
|
case 'l':
|
|
rb_ary_push(dvals, DLLONG2NUM(*((long*)(ANY2P(args[i])))));
|
|
break;
|
|
case 'f':
|
|
rb_ary_push(dvals, rb_float_new(*((float*)(ANY2P(args[i])))));
|
|
break;
|
|
case 'd':
|
|
rb_ary_push(dvals, rb_float_new(*((double*)(ANY2P(args[i])))));
|
|
break;
|
|
case 'p':
|
|
rb_ary_push(dvals, rb_dlptr_new((void*)(ANY2P(args[i])), 0, 0));
|
|
break;
|
|
case 'a':
|
|
rb_ary_push(dvals, rb_dlptr_new((void*)ANY2P(args[i]), 0, 0));
|
|
break;
|
|
case 's':
|
|
rb_ary_push(dvals, rb_tainted_str_new2((char*)ANY2S(args[i])));
|
|
DEBUG_CODE({
|
|
printf("dlfree(%s)\n",(char*)ANY2S(args[i]));
|
|
});
|
|
dlfree((void*)ANY2S(args[i]));
|
|
break;
|
|
default:
|
|
{
|
|
char c = dtypes[i];
|
|
FREE_ARGS;
|
|
rb_raise(rb_eRuntimeError, "unknown argument type '%c'", i, c);
|
|
};
|
|
};
|
|
}
|
|
else{
|
|
switch( sym->type[i+1] ){
|
|
case 'A':
|
|
dlfree((void*)ANY2P(args[i]));
|
|
break;
|
|
};
|
|
rb_ary_push(dvals, argv[i]);
|
|
};
|
|
};
|
|
|
|
#undef FREE_ARGS
|
|
return rb_assoc_new(val,dvals);
|
|
}
|
|
|
|
VALUE
|
|
rb_dlsym_to_i(VALUE self)
|
|
{
|
|
struct sym_data *sym;
|
|
|
|
Data_Get_Struct(self, struct sym_data, sym);
|
|
return DLLONG2NUM(sym);
|
|
}
|
|
|
|
VALUE
|
|
rb_dlsym_to_ptr(VALUE self)
|
|
{
|
|
struct sym_data *sym;
|
|
|
|
Data_Get_Struct(self, struct sym_data, sym);
|
|
return rb_dlptr_new(sym->func, sizeof(freefunc_t), 0);
|
|
}
|
|
|
|
void
|
|
Init_dlsym()
|
|
{
|
|
rb_cDLSymbol = rb_define_class_under(rb_mDL, "Symbol", rb_cData);
|
|
rb_define_singleton_method(rb_cDLSymbol, "new", rb_dlsym_s_new, -1);
|
|
rb_define_singleton_method(rb_cDLSymbol, "char2type", rb_s_dlsym_char2type, 1);
|
|
rb_define_method(rb_cDLSymbol, "initialize", rb_dlsym_initialize, -1);
|
|
rb_define_method(rb_cDLSymbol, "call", rb_dlsym_call, -1);
|
|
rb_define_method(rb_cDLSymbol, "[]", rb_dlsym_call, -1);
|
|
rb_define_method(rb_cDLSymbol, "name", rb_dlsym_name, 0);
|
|
rb_define_method(rb_cDLSymbol, "proto", rb_dlsym_proto, 0);
|
|
rb_define_method(rb_cDLSymbol, "cproto", rb_dlsym_cproto, 0);
|
|
rb_define_method(rb_cDLSymbol, "inspect", rb_dlsym_inspect, 0);
|
|
rb_define_method(rb_cDLSymbol, "to_s", rb_dlsym_cproto, 0);
|
|
rb_define_method(rb_cDLSymbol, "to_ptr", rb_dlsym_to_ptr, 0);
|
|
rb_define_method(rb_cDLSymbol, "to_i", rb_dlsym_to_i, 0);
|
|
}
|