Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/struct5.c Source File

Ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c52d4d35cc6a173c89eda98ceffa2dcf)

struct5.c
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1/* Area: ffi_call
2 Purpose: Check structures.
3 Limitations: none.
4 PR: none.
5 Originator: From the original ffitest.c */
6
7/* { dg-do run } */
8#include "ffitest.h"
9 typedef struct
10{
11 char c1;
12 char c2;
13} test_structure_5;
14
15static test_structure_5 ABI_ATTR struct5(test_structure_5 ts1, test_structure_5 ts2)
16{
17 ts1.c1 += ts2.c1;
18 ts1.c2 -= ts2.c2;
19
20 return ts1;
21}
22
23 int main (void)
24{
25 ffi_cif cif;
26 ffi_type *args[MAX_ARGS];
27 void *values[MAX_ARGS];
28 ffi_type ts5_type;
29 ffi_type *ts5_type_elements[3];
30
31 test_structure_5 ts5_arg1, ts5_arg2;
32
33 /* This is a hack to get a properly aligned result buffer */
34 test_structure_5 *ts5_result =
35 (test_structure_5 *) malloc (sizeof(test_structure_5));
36
37 ts5_type.size = 0;
38 ts5_type.alignment = 0;
39 ts5_type.type = FFI_TYPE_STRUCT;
40 ts5_type.elements = ts5_type_elements;
41 ts5_type_elements[0] = &ffi_type_schar;
42 ts5_type_elements[1] = &ffi_type_schar;
43 ts5_type_elements[2] = NULL;
44
45 args[0] = &ts5_type;
46 args[1] = &ts5_type;
47 values[0] = &ts5_arg1;
48 values[1] = &ts5_arg2;
49
50 /* Initialize the cif */
51 CHECK(ffi_prep_cif(&cif, ABI_NUM, 2, &ts5_type, args) == FFI_OK);
52
53 ts5_arg1.c1 = 2;
54 ts5_arg1.c2 = 6;
55 ts5_arg2.c1 = 5;
56 ts5_arg2.c2 = 3;
57
58 ffi_call (&cif, FFI_FN(struct5), ts5_result, values);
59
60 CHECK(ts5_result->c1 == 7);
61 CHECK(ts5_result->c2 == 3);
62
63
64 free (ts5_result);
65 exit(0);
66}
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
CHECK
#define CHECK(sub)
Definition: compile.c:429
free
#define free(x)
Definition: dln.c:52
ffitest.h
ABI_NUM
#define ABI_NUM
Definition: ffitest.h:35
ABI_ATTR
#define ABI_ATTR
Definition: ffitest.h:36
MAX_ARGS
#define MAX_ARGS
Definition: function.c:17
ffi_prep_cif
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition: prep_cif.c:226
NULL
#define NULL
Definition: regenc.h:69
malloc
#define malloc
Definition: st.c:170
main
int main(void)
Definition: struct5.c:23
test_structure_5
Definition: struct5.c:10
test_structure_5::c1
char c1
Definition: struct5.c:11
test_structure_5::c2
char c2
Definition: struct5.c:12