#define php_http_buffer_resize(b, s) php_http_buffer_resize_ex((b), (s), 0, 0)
PHP_HTTP_BUFFER_API size_t php_http_buffer_resize_ex(php_http_buffer_t *buf, size_t len, size_t override_size, int allow_error);
+PHP_HTTP_BUFFER_API char *php_http_buffer_account(php_http_buffer_t *buf, size_t to_account);
+
/* shrink memory chunk to actually used size (+1) */
PHP_HTTP_BUFFER_API size_t php_http_buffer_shrink(php_http_buffer_t *buf);
/* stores data in a php_http_buffer_t until it reaches chunk_size */
PHP_HTTP_BUFFER_API size_t php_http_buffer_chunk_buffer(php_http_buffer_t **s, const char *data, size_t data_len, char **chunk, size_t chunk_size);
-typedef size_t (*php_http_buffer_pass_func_t)(void *opaque, const char *, size_t TSRMLS_DC);
+typedef size_t (*php_http_buffer_pass_func_t)(void *opaque, char *, size_t TSRMLS_DC);
+
+PHP_HTTP_BUFFER_API ssize_t php_http_buffer_passthru(php_http_buffer_t **s, size_t chunk_size, php_http_buffer_pass_func_t passin, void *passin_arg, php_http_buffer_pass_func_t passon, void *passon_arg TSRMLS_DC);
/* wrapper around php_http_buffer_chunk_buffer, which passes available chunks to passthru() */
PHP_HTTP_BUFFER_API void php_http_buffer_chunked_output(php_http_buffer_t **s, const char *data, size_t data_len, size_t chunk_size, php_http_buffer_pass_func_t passout, void *opaque TSRMLS_DC);