diff options
Diffstat (limited to 'webkit/blob/file_stream_reader.h')
| -rw-r--r-- | webkit/blob/file_stream_reader.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/webkit/blob/file_stream_reader.h b/webkit/blob/file_stream_reader.h index 83b8972..95e3571 100644 --- a/webkit/blob/file_stream_reader.h +++ b/webkit/blob/file_stream_reader.h @@ -38,6 +38,14 @@ class BLOB_EXPORT FileStreamReader { // |callback| will not be called. virtual int Read(net::IOBuffer* buf, int buf_len, const net::CompletionCallback& callback) = 0; + + // Returns the length of the file if it could successfully retrieve the + // file info *and* its last modification time equals to + // expected_modification_time_ (rv >= 0 cases). + // Otherwise, a negative error code is returned (rv < 0 cases). + // If the stream is deleted while it has an in-flight GetLength operation + // |callback| will not be called. + virtual int GetLength(const net::Int64CompletionCallback& callback) = 0; }; } // namespace webkit_blob |