mirror of
https://github.com/ivabus/pantry
synced 2024-11-30 12:15:06 +03:00
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
|
#include <stdio.h>
|
||
|
|
#include <ffi.h>
|
||
|
|
/* Acts like puts with the file given at time of enclosure. */
|
||
|
|
void puts_binding(ffi_cif *cif, unsigned int *ret, void* args[],
|
||
|
|
FILE *stream)
|
||
|
|
{
|
||
|
|
*ret = fputs(*(char **)args[0], stream);
|
||
|
|
}
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
ffi_cif cif;
|
||
|
|
ffi_type *args[1];
|
||
|
|
ffi_closure *closure;
|
||
|
|
int (*bound_puts)(char *);
|
||
|
|
int rc;
|
||
|
|
/* Allocate closure and bound_puts */
|
||
|
|
closure = ffi_closure_alloc(sizeof(ffi_closure), &bound_puts);
|
||
|
|
if (closure)
|
||
|
|
{
|
||
|
|
/* Initialize the argument info vectors */
|
||
|
|
args[0] = &ffi_type_pointer;
|
||
|
|
/* Initialize the cif */
|
||
|
|
if (ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
|
||
|
|
&ffi_type_uint, args) == FFI_OK)
|
||
|
|
{
|
||
|
|
/* Initialize the closure, setting stream to stdout */
|
||
|
|
if (ffi_prep_closure_loc(closure, &cif, puts_binding,
|
||
|
|
stdout, bound_puts) == FFI_OK)
|
||
|
|
{
|
||
|
|
rc = bound_puts("Hello World!");
|
||
|
|
/* rc now holds the result of the call to fputs */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* Deallocate both closure, and bound_puts */
|
||
|
|
ffi_closure_free(closure);
|
||
|
|
return 0;
|
||
|
|
}
|