PRB: HrBackupClose in an Online Backup Becomes Unresponsive

MORE INFORMATION

Steps to Reproduce Behavior

The Backtest.c sample (part of the Exchange Software Development Kit [SDK]) demonstrates the problem if we change the EcBackupFile function to quit the backup routine before a full store as shown in the example below:

   EcBackupFile(HBC hbcBackupContext,SZ szFile,HANDLE hBackupFile)
   {
     ...
     //  Read the next chunk from the database.
     hrStatus = HrBackupRead(hbcBackupContext,pvBuffer,cbToRead,&cbRead);
     // Close file - call becomes unresponsive if performed locally.
     HrBackupClose(hbcBackupContext);
     //HrBackupEnd(hbcBackupContext);
     if (hrStatus == ERROR_SUCCESS)
     {
       liBytesRead.QuadPart += cbRead;
     }
      ...
   }