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  • Koichi Sasada's avatar
    c695536c
    use `st_update` to prevent table extension · c695536c
    Koichi Sasada authored 
    to prevent the following scenario:

1. `delete_unique_str()` can be called while GC (sweeping)
2. it calls `st_insert()` to decrement the counter
3. `st_insert()` can try to extend the table even if the key exists
4. `xmalloc` while GC and cause BUG
    c695536c
    use `st_update` to prevent table extension
    Koichi Sasada authored 
    to prevent the following scenario:

1. `delete_unique_str()` can be called while GC (sweeping)
2. it calls `st_insert()` to decrement the counter
3. `st_insert()` can try to extend the table even if the key exists
4. `xmalloc` while GC and cause BUG