typedef struct _php_stream_filter_ops {
php_stream_filter_status_t (*filter)(
php_stream *stream,
php_stream_filter *thisfilter,
php_stream_bucket_brigade *buckets_in,
php_stream_bucket_brigade *buckets_out,
size_t *bytes_consumed,
int flags
TSRMLS_DC);
void (*dtor)(php_stream_filter *thisfilter TSRMLS_DC);
const char *label;
} php_stream_filter_ops;