[ https://issues.apache.org/jira/browse/ARROW-2835?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antoine Pitrou resolved ARROW-2835. ----------------------------------- Resolution: Fixed Issue resolved by pull request 4417 [https://github.com/apache/arrow/pull/4417] > [C++] ReadAt/WriteAt are inconsistent with moving the files position > -------------------------------------------------------------------- > > Key: ARROW-2835 > URL: https://issues.apache.org/jira/browse/ARROW-2835 > Project: Apache Arrow > Issue Type: New Feature > Components: C++ > Reporter: Dimitri Vorona > Priority: Major > Labels: pull-request-available > Fix For: 0.14.0 > > Time Spent: 1.5h > Remaining Estimate: 0h > > Right now, there is inconsistent behaviour regarding moving the files > position pointer after calling ReadAt or WriteAt. For example, the default > implementation of ReadAt seeks to the desired offset and calls Read which > moves the position pointer. MemoryMappedFile::ReadAt, however, doesn't change > the position. WriteableFile::WriteAt seem to move the position in the current > implementation, but there is no docstring which prescribes this behaviour. > Antoine suggested that *At methods shouldn't touch the position and it makes > more sense, IMHO. The change isn't huge and doesn't seem to break anything > internally, but it might break the existing user code. -- This message was sent by Atlassian JIRA (v7.6.3#76005)