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Viewing changes to drizzled/select_send.h

  • Committer: Brian Aker
  • Date: 2009-05-20 23:51:08 UTC
  • mfrom: (1022.2.18 mordred)
  • Revision ID: brian@gaz-20090520235108-nb5he1em112798pb
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drizzled/select_send.h
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#ifndef DRIZZLED_SELECT_SEND_H
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#define DRIZZLED_SELECT_SEND_H
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#include <drizzled/plugin/client.h>
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#include <drizzled/plugin/query_cache.h>
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#include <drizzled/plugin/transactional_storage_engine.h>
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namespace drizzled
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{
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class select_send :public select_result {
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  /**
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    True if we have sent result set metadata to the client.
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      InnoDB adaptive hash S-latch to avoid thread deadlocks if it was reserved
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      by session
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    */
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    plugin::TransactionalStorageEngine::releaseTemporaryLatches(session);
 
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    ha_release_temporary_latches(session);
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    /* Unlock tables before sending packet to gain some speed */
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    if (session->lock)
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    {
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      session->unlockTables(session->lock);
 
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      mysql_unlock_tables(session, session->lock);
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      session->lock= 0;
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    }
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    session->my_eof();
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    return false;
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  }
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  bool send_fields(List<Item> &list)
 
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  bool send_fields(List<Item> &list, uint32_t flags)
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  {
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    bool res;
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    if (! (res= session->client->sendFields(&list)))
 
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    if (!(res= session->protocol->sendFields(&list, flags)))
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      is_result_set_started= 1;
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    return res;
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  }
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      InnoDB adaptive hash S-latch to avoid thread deadlocks if it was reserved
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      by session
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    */
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    plugin::TransactionalStorageEngine::releaseTemporaryLatches(session);
 
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    ha_release_temporary_latches(session);
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    List_iterator_fast<Item> li(items);
 
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    Protocol *protocol= session->protocol;
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    char buff[MAX_FIELD_WIDTH];
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    String buffer(buff, sizeof(buff), &my_charset_bin);
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    protocol->prepareForResend();
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    Item *item;
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    while ((item=li++))
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    {
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      if (item->send(session->client, &buffer))
 
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      if (item->send(protocol, &buffer))
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      {
 
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        protocol->free();                               // Free used buffer
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        my_message(ER_OUT_OF_RESOURCES, ER(ER_OUT_OF_RESOURCES), MYF(0));
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        break;
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      }
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    }
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    /* Insert this record to the Resultset into the cache */
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    if (session->query_cache_key != "" && session->getResultsetMessage() != NULL)
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      plugin::QueryCache::insertRecord(session, items);
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    session->sent_row_count++;
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    if (session->is_error())
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      return true;
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    return session->client->flush();
 
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    if (protocol->isConnected())
 
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      return(protocol->write());
 
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    return false;
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  }
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};
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} /* namespace drizzled */
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#endif /* DRIZZLED_SELECT_SEND_H */