ZSTREAM_FLAG_CLOSING  380 ext/zlib/zlib.c #define ZSTREAM_IS_CLOSING(z)  ((z)->flags & ZSTREAM_FLAG_CLOSING)
ZSTREAM_FLAG_CLOSING 2284 ext/zlib/zlib.c     gz->z.flags |= ZSTREAM_FLAG_CLOSING;
ZSTREAM_FLAG_CLOSING 2306 ext/zlib/zlib.c     gz->z.flags |= ZSTREAM_FLAG_CLOSING;