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Overview
Comment:Avoid attempting to rename the *-oal file while it is still open.
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SHA1: 658c3b0c80b9fe7eaac5982573651dc649a4c53f
User & Date: dan 2015-04-16 10:55:58.879
Context
2015-04-16
14:33
Fix a mismatched printf() argument and format specifier. Add ota files to Makefile.in. (check-in: 5db810a88d user: dan tags: ota-update)
10:55
Avoid attempting to rename the *-oal file while it is still open. (check-in: 658c3b0c80 user: dan tags: ota-update)
2015-04-15
14:26
Merge all recent trunk enhancements and fixes into the ota-update branch. (check-in: 9bd3e4453d user: drh tags: ota-update)
Changes
Unified Diff Ignore Whitespace Patch
Changes to ext/ota/sqlite3ota.c.
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    ** In order to ensure that there are no database readers, an EXCLUSIVE
    ** lock is obtained here before the *-oal is moved to *-wal.
    */
    otaLockDatabase(p);
    if( p->rc==SQLITE_OK ){
      otaFileSuffix3(zBase, zWal);
      otaFileSuffix3(zBase, zOal);
      rename(zOal, zWal);

      /* Re-open the databases. */
      otaObjIterFinalize(&p->objiter);
      sqlite3_close(p->dbMain);
      sqlite3_close(p->dbOta);


      p->dbMain = 0;
      p->dbOta = 0;
      otaOpenDatabase(p);
      otaSetupCheckpoint(p, 0);

    }
  }

  sqlite3_free(zWal);
  sqlite3_free(zOal);
}









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    ** In order to ensure that there are no database readers, an EXCLUSIVE
    ** lock is obtained here before the *-oal is moved to *-wal.
    */
    otaLockDatabase(p);
    if( p->rc==SQLITE_OK ){
      otaFileSuffix3(zBase, zWal);
      otaFileSuffix3(zBase, zOal);


      /* Re-open the databases. */
      otaObjIterFinalize(&p->objiter);
      sqlite3_close(p->dbMain);
      sqlite3_close(p->dbOta);
      p->rc = rename(zOal, zWal) ? SQLITE_IOERR : SQLITE_OK;
      if( p->rc==SQLITE_OK ){
        p->dbMain = 0;
        p->dbOta = 0;
        otaOpenDatabase(p);
        otaSetupCheckpoint(p, 0);
      }
    }
  }

  sqlite3_free(zWal);
  sqlite3_free(zOal);
}
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