1 /* Area: ffi_call 2 Purpose: Check different structures. 3 Limitations: none. 4 PR: none. 5 Originator: Ronald Oussoren <oussoren (at) cistron.nl> 20030824 */ 6 7 /* { dg-do run } */ 8 #include "ffitest.h" 9 10 typedef struct Point { 11 float x; 12 float y; 13 } Point; 14 15 typedef struct Size { 16 float h; 17 float w; 18 } Size; 19 20 typedef struct Rect { 21 Point o; 22 Size s; 23 } Rect; 24 25 int 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 33 int 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
