1/* Area:	ffi_call
2   Purpose:	Check different structures.
3   Limitations:	none.
4   PR:		none.
5   Originator:	Ronald Oussoren <oussoren@cistron.nl> 20030824	*/
6
7/* { dg-do run } */
8#include "ffitest.h"
9
10typedef struct Point {
11	float x;
12	float y;
13} Point;
14
15typedef struct Size {
16	float h;
17	float w;
18} Size;
19
20typedef struct Rect {
21	Point o;
22	Size  s;
23} Rect;
24
25int doit(int o, char* s, Point p, Rect r, int last)
26{
27	printf("CALLED WITH %d %s {%f %f} {{%f %f} {%f %f}} %d\n",
28		o, s, p.x, p.y, r.o.x, r.o.y, r.s.h, r.s.w, last);
29	return 42;
30}
31
32
33int main(void)
34{
35	ffi_type point_type;
36	ffi_type size_type;
37	ffi_type rect_type;
38	ffi_cif cif;
39	ffi_type* arglist[6];
40	void* values[6];
41	int r;
42
43	/*
44	 *  First set up FFI types for the 3 struct types
45	 */
46
47	point_type.size = 0; /*sizeof(Point);*/
48	point_type.alignment = 0; /*__alignof__(Point);*/
49	point_type.type = FFI_TYPE_STRUCT;
50	point_type.elements = malloc(3 * sizeof(ffi_type*));
51	point_type.elements[0] = &ffi_type_float;
52	point_type.elements[1] = &ffi_type_float;
53	point_type.elements[2] = NULL;
54
55	size_type.size = 0;/* sizeof(Size);*/
56	size_type.alignment = 0;/* __alignof__(Size);*/
57	size_type.type = FFI_TYPE_STRUCT;
58	size_type.elements = malloc(3 * sizeof(ffi_type*));
59	size_type.elements[0] = &ffi_type_float;
60	size_type.elements[1] = &ffi_type_float;
61	size_type.elements[2] = NULL;
62
63	rect_type.size = 0;/*sizeof(Rect);*/
64	rect_type.alignment =0;/* __alignof__(Rect);*/
65	rect_type.type = FFI_TYPE_STRUCT;
66	rect_type.elements = malloc(3 * sizeof(ffi_type*));
67	rect_type.elements[0] = &point_type;
68	rect_type.elements[1] = &size_type;
69	rect_type.elements[2] = NULL;
70
71	/*
72	 * Create a CIF
73	 */
74	arglist[0] = &ffi_type_sint;
75	arglist[1] = &ffi_type_pointer;
76	arglist[2] = &point_type;
77	arglist[3] = &rect_type;
78	arglist[4] = &ffi_type_sint;
79	arglist[5] = NULL;
80
81	r = ffi_prep_cif(&cif, FFI_DEFAULT_ABI,
82			5, &ffi_type_sint, arglist);
83	if (r != FFI_OK) {
84		abort();
85	}
86
87
88	/* And call the function through the CIF */
89
90	{
91	Point p = { 1.0, 2.0 };
92	Rect  r = { { 9.0, 10.0}, { -1.0, -2.0 } };
93	int   o = 0;
94	int   l = 42;
95	char* m = "myMethod";
96	ffi_arg result;
97
98	values[0] = &o;
99	values[1] = &m;
100	values[2] = &p;
101	values[3] = &r;
102	values[4] = &l;
103	values[5] = NULL;
104
105	printf("CALLING WITH %d %s {%f %f} {{%f %f} {%f %f}} %d\n",
106		o, m, p.x, p.y, r.o.x, r.o.y, r.s.h, r.s.w, l);
107
108	ffi_call(&cif, FFI_FN(doit), &result, values);
109
110	printf ("The result is %d\n", (int)result);
111
112	}
113	exit(0);
114}
115