1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
#include <fiddle.h>
ffi_type *
int_to_ffi_type(int type)
{
int signed_p = 1;
if (type < 0) {
type = -1 * type;
signed_p = 0;
}
#define rb_ffi_type_of(t) (signed_p ? &ffi_type_s##t : &ffi_type_u##t)
switch (type) {
case TYPE_VOID:
return &ffi_type_void;
case TYPE_VOIDP:
return &ffi_type_pointer;
case TYPE_CHAR:
return rb_ffi_type_of(char);
case TYPE_SHORT:
return rb_ffi_type_of(short);
case TYPE_INT:
return rb_ffi_type_of(int);
case TYPE_LONG:
return rb_ffi_type_of(long);
#if HAVE_LONG_LONG
case TYPE_LONG_LONG:
return rb_ffi_type_of(int64);
#endif
case TYPE_FLOAT:
return &ffi_type_float;
case TYPE_DOUBLE:
return &ffi_type_double;
default:
rb_raise(rb_eRuntimeError, "unknown type %d", type);
}
return &ffi_type_pointer;
}
void
value_to_generic(int type, VALUE src, fiddle_generic * dst)
{
int signed_p = 1;
if (type < 0) {
type = -1 * type;
signed_p = 0;
}
switch (type) {
case TYPE_VOID:
break;
case TYPE_VOIDP:
dst->pointer = NUM2PTR(rb_Integer(src));
break;
case TYPE_CHAR:
dst->schar = NUM2INT(src);
break;
case TYPE_SHORT:
dst->sshort = NUM2INT(src);
break;
case TYPE_INT:
dst->sint = NUM2INT(src);
break;
case TYPE_LONG:
if (signed_p)
dst->slong = NUM2LONG(src);
else
dst->ulong = NUM2LONG(src);
break;
#if HAVE_LONG_LONG
case TYPE_LONG_LONG:
dst->long_long = rb_big2ull(src);
break;
#endif
case TYPE_FLOAT:
dst->ffloat = (float)NUM2DBL(src);
break;
case TYPE_DOUBLE:
dst->ddouble = NUM2DBL(src);
break;
default:
rb_raise(rb_eRuntimeError, "unknown type %d", type);
}
}
VALUE
generic_to_value(VALUE rettype, fiddle_generic retval)
{
int signed_p = 1;
int type = NUM2INT(rettype);
VALUE cPointer;
cPointer = rb_const_get(mFiddle, rb_intern("Pointer"));
if (type < 0) {
type = -1 * type;
signed_p = 0;
}
switch (type) {
case TYPE_VOID:
return Qnil;
case TYPE_VOIDP:
return rb_funcall(cPointer, rb_intern("[]"), 1,
PTR2NUM((void *)retval.pointer));
case TYPE_CHAR:
if (signed_p) return INT2NUM((char)retval.fffi_sarg);
return INT2NUM((unsigned char)retval.fffi_arg);
case TYPE_SHORT:
if (signed_p) return INT2NUM((short)retval.fffi_sarg);
return INT2NUM((unsigned short)retval.fffi_arg);
case TYPE_INT:
if (signed_p) return INT2NUM((int)retval.fffi_sarg);
return UINT2NUM((unsigned int)retval.fffi_arg);
case TYPE_LONG:
if (signed_p) return LONG2NUM(retval.slong);
return ULONG2NUM(retval.ulong);
#if HAVE_LONG_LONG
case TYPE_LONG_LONG:
return rb_ll2inum(retval.long_long);
break;
#endif
case TYPE_FLOAT:
return rb_float_new(retval.ffloat);
case TYPE_DOUBLE:
return rb_float_new(retval.ddouble);
default:
rb_raise(rb_eRuntimeError, "unknown type %d", type);
}
}
/* vim: set noet sw=4 sts=4 */
|
