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| author | Björn Esser <besser82@fedoraproject.org> | 2017-12-16 17:09:39 +0100 |
|---|---|---|
| committer | Björn Esser <besser82@fedoraproject.org> | 2017-12-17 12:51:17 +0100 |
| commit | c233f5c05e92909a764973524a03471bfad78f09 (patch) | |
| tree | 3569b9a633e75533ed968b18b8e854ff7c45388c | |
| parent | 5ea6a05bfa43c9ba438fbc0eaea600edd6d72b88 (diff) | |
| download | json-c-c233f5c05e92909a764973524a03471bfad78f09.tar.gz | |
json_object_private: Use unsigned 32-bit integer type for refcount
| -rw-r--r-- | json_object.c | 3 | ||||
| -rw-r--r-- | json_object_private.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/json_object.c b/json_object.c index 7c7438d..da96f4c 100644 --- a/json_object.c +++ b/json_object.c @@ -169,6 +169,9 @@ extern struct json_object* json_object_get(struct json_object *jso) { if (!jso) return jso; + // Don't overflow the refcounter. + assert(jso->_ref_count < UINT_FAST32_MAX); + #if defined(HAVE_ATOMIC_BUILTINS) && defined(ENABLE_THREADING) __sync_add_and_fetch(&jso->_ref_count, 1); #else diff --git a/json_object_private.h b/json_object_private.h index 53be70d..51134b6 100644 --- a/json_object_private.h +++ b/json_object_private.h @@ -29,7 +29,7 @@ struct json_object enum json_type o_type; json_object_private_delete_fn *_delete; json_object_to_json_string_fn *_to_json_string; - int _ref_count; + uint_fast32_t _ref_count; struct printbuf *_pb; union data { json_bool c_boolean; |