diff options
| -rw-r--r-- | io.c | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -1294,11 +1294,13 @@ rb_io_set_sync(VALUE io, VALUE sync) * ios.fsync => 0 or nil * * Immediately writes all buffered data in <em>ios</em> to disk. - * Returns <code>nil</code> if the underlying operating system does not - * support <em>fsync(2)</em>. Note that <code>fsync</code> differs from + * Note that <code>fsync</code> differs from * using <code>IO#sync=</code>. The latter ensures that data is flushed * from Ruby's buffers, but doesn't not guarantee that the underlying * operating system actually writes it to disk. + * + * <code>NotImplementedError</code> is raised + * if the underlying operating system does not support <em>fsync(2)</em>. */ static VALUE @@ -1325,8 +1327,9 @@ rb_io_fsync(VALUE io) * ios.fdatasync => 0 or nil * * Immediately writes all buffered data in <em>ios</em> to disk. - * Returns <code>nil</code> if the underlying operating system does not - * support <em>fdatasync(2)</em>. + * + * <code>NotImplementedError</code> is raised + * if the underlying operating system does not support <em>fdatasync(2)</em>. */ static VALUE |