Esempi in C++ (Cpp) per TRI_READ_LOCK_DATAFILES_SIM_COLLECTION

Esempio n. 1

File: compactor.c Progetto: mokerjoke/ArangoDB

static void CompactifySimCollection (TRI_sim_collection_t* sim) {
  TRI_vector_t vector;
  size_t n;
  size_t i;

  TRI_InitVector(&vector, TRI_UNKNOWN_MEM_ZONE, sizeof(TRI_doc_datafile_info_t));

  // copy datafile information
  TRI_READ_LOCK_DATAFILES_SIM_COLLECTION(sim);

  n = sim->base.base._datafiles._length;

  for (i = 0;  i < n;  ++i) {
    TRI_datafile_t* df;
    TRI_doc_datafile_info_t* dfi;

    df = sim->base.base._datafiles._buffer[i];
    dfi = TRI_FindDatafileInfoDocCollection(&sim->base, df->_fid);

    TRI_PushBackVector(&vector, dfi);
  }

  TRI_READ_UNLOCK_DATAFILES_SIM_COLLECTION(sim);

  // handle datafiles with dead objects
  for (i = 0;  i < vector._length;  ++i) {
    TRI_doc_datafile_info_t* dfi;

    dfi = TRI_AtVector(&vector, i);

    if (dfi->_numberDead == 0) {
      continue;
    }

    LOG_DEBUG("datafile = %lu, alive = %lu / %lu, dead = %lu / %lu, deletions = %lu",
              (unsigned long) dfi->_fid,
              (unsigned long) dfi->_numberAlive,
              (unsigned long) dfi->_sizeAlive,
              (unsigned long) dfi->_numberDead,
              (unsigned long) dfi->_sizeDead,
              (unsigned long) dfi->_numberDeletion);

    CompactifyDatafile(sim, dfi->_fid);
  }

  // cleanup local variables
  TRI_DestroyVector(&vector);
}

Esempio n. 2

static void CompactifyDatafile (TRI_sim_collection_t* sim, TRI_voc_fid_t fid) {
  TRI_datafile_t* df;
  bool ok;
  size_t n;
  size_t i;

  // locate the datafile
  TRI_READ_LOCK_DATAFILES_SIM_COLLECTION(sim);

  n = sim->base.base._datafiles._length;

  for (i = 0;  i < n;  ++i) {
    df = sim->base.base._datafiles._buffer[i];

    if (df->_fid == fid) {
      break;
    }
  }

  TRI_READ_UNLOCK_DATAFILES_SIM_COLLECTION(sim);

  if (i == n) {
    return;
  }

  // now compactify the datafile
  LOG_DEBUG("starting to compactify datafile '%s'", df->_filename);

  ok = TRI_IterateDatafile(df, Compactifier, sim, false);

  if (! ok) {
    LOG_WARNING("failed to compactify the datafile '%s'", df->_filename);
    return;
  }

  // wait for the journals to sync
  WaitCompactSync(sim, df);

  // remove the datafile from the list of datafiles
  TRI_WRITE_LOCK_DATAFILES_SIM_COLLECTION(sim);

  n = sim->base.base._datafiles._length;

  for (i = 0;  i < n;  ++i) {
    df = sim->base.base._datafiles._buffer[i];

    if (df->_fid == fid) {
      TRI_RemoveVectorPointer(&sim->base.base._datafiles, i);
      break;
    }
  }

  TRI_WRITE_UNLOCK_DATAFILES_SIM_COLLECTION(sim);

  if (i == n) {
    LOG_WARNING("failed to locate the datafile '%lu'", (unsigned long) df->_fid);
    return;
  }

  // add a deletion marker to the result set container
  TRI_CreateBarrierDatafile(&sim->base._barrierList, df, RemoveDatafileCallback, &sim->base.base);
}