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#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "json.h"
#include "printbuf.h"
struct myinfo {
int value;
};
static int freeit_was_called = 0;
static void freeit(json_object *jso, void *userdata)
{
struct myinfo *info = userdata;
printf("freeit, value=%d\n", info->value);
// Don't actually free anything here, the userdata is stack allocated.
freeit_was_called = 1;
}
static int custom_serializer(struct json_object *o,
struct printbuf *pb,
int level,
int flags)
{
sprintbuf(pb, "Custom Output");
return 0;
}
int main(int argc, char **argv)
{
json_object *my_object;
MC_SET_DEBUG(1);
printf("Test setting, then resetting a custom serializer:\n");
my_object = json_object_new_object();
json_object_object_add(my_object, "abc", json_object_new_int(12));
json_object_object_add(my_object, "foo", json_object_new_string("bar"));
printf("my_object.to_string(standard)=%s\n", json_object_to_json_string(my_object));
struct myinfo userdata = { .value = 123 };
json_object_set_serializer(my_object, custom_serializer, &userdata, freeit);
printf("my_object.to_string(custom serializer)=%s\n", json_object_to_json_string(my_object));
printf("Next line of output should be from the custom freeit function:\n");
freeit_was_called = 0;
json_object_set_serializer(my_object, NULL, NULL, NULL);
assert(freeit_was_called);
printf("my_object.to_string(standard)=%s\n", json_object_to_json_string(my_object));
json_object_put(my_object);
// ============================================
my_object = json_object_new_object();
printf("Check that the custom serializer isn't free'd until the last json_object_put:\n");
json_object_set_serializer(my_object, custom_serializer, &userdata, freeit);
json_object_get(my_object);
json_object_put(my_object);
printf("my_object.to_string(custom serializer)=%s\n", json_object_to_json_string(my_object));
printf("Next line of output should be from the custom freeit function:\n");
freeit_was_called = 0;
json_object_put(my_object);
assert(freeit_was_called);
return 0;
}
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