aeron-driver/src/main/java/io/aeron/driver/reports/LossReportUtil.java
public static MappedByteBuffer mapLossReport(final String aeronDirectoryName, final int reportFileLength)
    {
        return mapNewFile(file(aeronDirectoryName), reportFileLength, false);
    }
public static MappedByteBuffer mapLossReport(final String aeronDirectoryName, final int reportFileLength)
    {
        return mapNewFile(file(aeronDirectoryName), reportFileLength, false);
    }
Map a new loss report in the Aeron directory for a given length.

@param aeronDirectoryName in which to create the file.
@param reportFileLength   for the file.
@return the newly mapped buffer for the file.