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#include <stdio.h>
#include <stdlib.h>
#include "caml/alloc.h"
#include "caml/memory.h"
#define CAML_INTERNALS
#include "caml/gc_ctrl.h"
const char* strs[] = { "foo", "bar", 0 };
value stub(value ref)
{
CAMLparam1(ref);
CAMLlocal2(x, y);
char* s; intnat coll_before;
printf("C, before: %d\n", Int_val(Field(ref, 0)));
/* First, do enough major allocations to do a full major collection cycle */
coll_before = caml_stat_major_collections;
while (caml_stat_major_collections <= coll_before+1) {
caml_alloc(10000, 0);
}
/* Now, call lots of allocation functions */
/* Small allocations */
caml_alloc(10, 0);
x = caml_alloc_small(2, 0);
Field(x, 0) = Val_unit;
Field(x, 1) = Val_unit;
caml_alloc_tuple(3);
caml_alloc_float_array(10);
caml_alloc_string(42);
caml_alloc_initialized_string(10, "abcdeabcde");
caml_copy_string("asoidjfa");
caml_copy_string_array(strs);
caml_copy_double(42.0);
caml_copy_int32(100);
caml_copy_int64(100);
caml_alloc_array(caml_copy_string, strs);
caml_alloc_sprintf("[%d]", 42);
/* Large allocations */
caml_alloc(1000, 0);
caml_alloc_shr(1000, String_tag);
caml_alloc_tuple(1000);
caml_alloc_float_array(1000);
caml_alloc_string(10000);
s = calloc(10000, 1);
caml_alloc_initialized_string(10000, s);
free(s);
printf("C, after: %d\n", Int_val(Field(ref, 0)));
fflush(stdout);
CAMLreturn (Val_unit);
}
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