diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-shaper.cc')
| -rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-shaper.cc | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-shaper.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-shaper.cc index 2c44cf26533..d44d8c91212 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-shaper.cc +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-shaper.cc @@ -44,8 +44,13 @@ static const hb_shaper_pair_t *static_shapers; static void free_static_shapers (void) { - if (unlikely (static_shapers != all_shapers)) - free ((void *) static_shapers); +retry: + hb_shaper_pair_t *shapers = (hb_shaper_pair_t *) hb_atomic_ptr_get (&static_shapers); + if (!hb_atomic_ptr_cmpexch (&static_shapers, shapers, nullptr)) + goto retry; + + if (unlikely (shapers != all_shapers)) + free ((void *) shapers); } #endif |