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  • Committer: David Shrewsbury
  • Date: 2010-11-15 15:29:16 UTC
  • mto: (1932.1.1 build)
  • mto: This revision was merged to the branch mainline in revision 1933.
  • Revision ID: shrewsbury.dave@gmail.com-20101115152916-cowsgsfm3sibys30
Move transaction_reader from drizzled/message to transaction_log plugin; also pulled transaction_reader file operations out into separate class.

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drizzled/table/concurrent.cc
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#include "plugin/myisam/myisam.h"
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#include "drizzled/plugin/transactional_storage_engine.h"
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#include <drizzled/table/instance.h>
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#include "drizzled/table.h"
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namespace drizzled
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  pointer.
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  NOTE
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  This function assumes that its caller already acquired table::Cache::singleton().mutex() mutex.
 
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  This function assumes that its caller already acquired LOCK_open mutex.
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  RETURN VALUE
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  false - Success
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bool Concurrent::reopen_name_locked_table(TableList* table_list, Session *session)
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{
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  safe_mutex_assert_owner(table::Cache::singleton().mutex().native_handle());
 
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  safe_mutex_assert_owner(LOCK_open.native_handle());
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  if (session->getKilled())
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    return true;
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  identifier::Table identifier(table_list->getSchemaName(), table_list->getTableName());
 
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  TableIdentifier identifier(table_list->getSchemaName(), table_list->getTableName());
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  if (open_unireg_entry(session, table_list->getTableName(), identifier))
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  {
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    intern_close_table();
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  NOTES
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  Extra argument for open is taken from session->open_options
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  One must have a lock on table::Cache::singleton().mutex() when calling this function
 
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  One must have a lock on LOCK_open when calling this function
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  RETURN
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  0     ok
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int table::Concurrent::open_unireg_entry(Session *session,
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                                         const char *alias,
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                                         identifier::Table &identifier)
 
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                                         TableIdentifier &identifier)
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{
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  int error;
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  TableShare::shared_ptr share;
 
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  TableSharePtr share;
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  uint32_t discover_retry_count= 0;
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  safe_mutex_assert_owner(table::Cache::singleton().mutex().native_handle());
 
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  safe_mutex_assert_owner(LOCK_open.native_handle());
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retry:
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  if (not (share= table::instance::Shared::make_shared(session,
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                                                       identifier,
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                                                       error)))
 
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  if (not (share= TableShare::getShareCreate(session,
 
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                                             identifier,
 
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                                             error)))
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  {
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    return 1;
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  }
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      share->resetVersion();                        // Mark share as old
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      if (discover_retry_count++)               // Retry once
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      {
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        table::instance::release(share);
 
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        TableShare::release(share);
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        return 1;
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      }
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      */
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      if (share->getTableCount() != 1)
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      {
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        table::instance::release(share);
 
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        TableShare::release(share);
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        return 1;
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      }
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      /* Free share and wait until it's released by all threads */
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      table::instance::release(share);
 
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      TableShare::release(share);
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      if (not session->getKilled())
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      {
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        session->clear_error();                 // Clear error message
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        goto retry;
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      }
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      return 1;
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    }
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    table::instance::release(share);
 
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    TableShare::release(share);
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    return 1;
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  }
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  // delete if this happens.
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  if (getShare()->getType() == message::Table::STANDARD)
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  {
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    table::instance::release(getMutableShare());
 
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    TableShare::release(getMutableShare());
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  }
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  else
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  {