shipments_input.c File Reference

#include "c_common/vroom/shipments_input.h"

Include dependency graph for shipments_input.c:

Go to the source code of this file.

Functions
static void	db_get_shipments (char *shipments_sql, Vroom_shipment_t **shipments, size_t *total_shipments, Column_info_t *info, const int column_count, bool is_plain)
static void	fetch_shipments (HeapTuple *tuple, TupleDesc *tupdesc, Column_info_t *info, Vroom_shipment_t *shipment, bool is_plain)
void	get_vroom_shipments (char *sql, Vroom_shipment_t **rows, size_t *total_rows, bool is_plain)
	Reads the VROOM shipments. More...

Function Documentation

db_get_shipments()

static void db_get_shipments ( char *  shipments_sql, Vroom_shipment_t **  shipments, size_t *  total_shipments, Column_info_t *  info, const int  column_count, bool  is_plain  )

static

Definition at line 135 of file shipments_input.c.

                   {
#ifdef PROFILE
  clock_t start_t = clock();
  PGR_DBG("%s", shipments_sql);
#endif
 
  const int tuple_limit = 1000000;
 
  size_t total_tuples;
 
  void *SPIplan;
  SPIplan = pgr_SPI_prepare(shipments_sql);
  Portal SPIportal;
  SPIportal = pgr_SPI_cursor_open(SPIplan);
 
  bool moredata = true;
  (*total_shipments) = total_tuples = 0;
 
  /* on the first tuple get the column numbers */
 
  while (moredata == true) {
    SPI_cursor_fetch(SPIportal, true, tuple_limit);
    if (total_tuples == 0) {
      pgr_fetch_column_info(info, column_count);
    }
    size_t ntuples = SPI_processed;
    total_tuples += ntuples;
    if (ntuples > 0) {
      if ((*shipments) == NULL)
        (*shipments) = (Vroom_shipment_t *)palloc0(
            total_tuples * sizeof(Vroom_shipment_t));
      else
        (*shipments) = (Vroom_shipment_t *)repalloc(
            (*shipments),
            total_tuples * sizeof(Vroom_shipment_t));
 
      if ((*shipments) == NULL) {
        elog(ERROR, "Out of memory");
      }
 
      size_t t;
      SPITupleTable *tuptable = SPI_tuptable;
      TupleDesc tupdesc = SPI_tuptable->tupdesc;
      for (t = 0; t < ntuples; t++) {
        HeapTuple tuple = tuptable->vals[t];
        fetch_shipments(&tuple, &tupdesc, info,
            &(*shipments)[total_tuples - ntuples + t], is_plain);
      }
      SPI_freetuptable(tuptable);
    } else {
      moredata = false;
    }
  }
 
  SPI_cursor_close(SPIportal);
 
  if (total_tuples == 0) {
    (*total_shipments) = 0;
    return;
  }
 
  (*total_shipments) = total_tuples;
#ifdef PROFILE
  time_msg("reading shipments", start_t, clock());
#endif
}

References fetch_shipments(), PGR_DBG, pgr_fetch_column_info(), pgr_SPI_cursor_open(), pgr_SPI_prepare(), and time_msg().

Referenced by get_vroom_shipments().

fetch_shipments()

static void fetch_shipments ( HeapTuple *  tuple, TupleDesc *  tupdesc, Column_info_t *  info, Vroom_shipment_t *  shipment, bool  is_plain  )

static

Definition at line 86 of file shipments_input.c.

                   {
  shipment->id = get_Idx(tuple, tupdesc, info[0], 0);
 
  shipment->p_location_id = get_MatrixIndex(tuple, tupdesc, info[1], 0);
  shipment->d_location_id = get_MatrixIndex(tuple, tupdesc, info[4], 0);
 
  if (is_plain) {
    shipment->p_setup = get_Duration(tuple, tupdesc, info[2], 0);
    shipment->p_service = get_Duration(tuple, tupdesc, info[3], 0);
    shipment->d_setup = get_Duration(tuple, tupdesc, info[5], 0);
    shipment->d_service = get_Duration(tuple, tupdesc, info[6], 0);
  } else {
    shipment->p_setup =
        (Duration)get_PositiveTInterval(tuple, tupdesc, info[2], 0);
    shipment->p_service =
        (Duration)get_PositiveTInterval(tuple, tupdesc, info[3], 0);
    shipment->d_setup =
        (Duration)get_PositiveTInterval(tuple, tupdesc, info[5], 0);
    shipment->d_service =
        (Duration)get_PositiveTInterval(tuple, tupdesc, info[6], 0);
  }
 
  shipment->amount_size = 0;
  shipment->amount = column_found(info[7].colNumber) ?
    spi_getPositiveBigIntArr_allowEmpty(tuple, tupdesc, info[7], &shipment->amount_size)
    : NULL;
 
  shipment->skills_size = 0;
  shipment->skills = column_found(info[8].colNumber) ?
    spi_getPositiveIntArr_allowEmpty(tuple, tupdesc, info[8], &shipment->skills_size)
    : NULL;
 
  shipment->priority = get_Priority(tuple, tupdesc, info[9], 0);
 
  shipment->p_data = column_found(info[10].colNumber)
                         ? spi_getText(tuple, tupdesc, info[10])
                         : strdup("{}");
  shipment->d_data = column_found(info[11].colNumber)
                         ? spi_getText(tuple, tupdesc, info[11])
                         : strdup("{}");
}

References Vroom_shipment_t::amount, Vroom_shipment_t::amount_size, column_found(), Vroom_shipment_t::d_data, Vroom_shipment_t::d_location_id, Vroom_shipment_t::d_service, Vroom_shipment_t::d_setup, get_Duration(), get_Idx(), get_MatrixIndex(), get_PositiveTInterval(), get_Priority(), Vroom_shipment_t::id, Vroom_shipment_t::p_data, Vroom_shipment_t::p_location_id, Vroom_shipment_t::p_service, Vroom_shipment_t::p_setup, Vroom_shipment_t::priority, Vroom_shipment_t::skills, Vroom_shipment_t::skills_size, spi_getPositiveBigIntArr_allowEmpty(), spi_getPositiveIntArr_allowEmpty(), and spi_getText().

Referenced by db_get_shipments().

get_vroom_shipments()

void get_vroom_shipments	(	char *	sql,
		Vroom_shipment_t **	rows,
		size_t *	total_rows,
		bool	is_plain
	)

Reads the VROOM shipments.

Parameters

[in]	sql	SQL query to execute
[out]	rows	C Container that holds the data
[out]	total_rows	Total rows recieved

Definition at line 216 of file shipments_input.c.

                   {
  int kColumnCount = 12;
  Column_info_t info[kColumnCount];
 
  for (int i = 0; i < kColumnCount; ++i) {
    info[i].colNumber = -1;
    info[i].type = 0;
    info[i].strict = false;
    info[i].eType = ANY_INTEGER;
  }
 
  info[0].name = "id";
 
  /* pickup shipments */
  info[1].name = "p_location_id";
  info[2].name = "p_setup";
  info[3].name = "p_service";
 
  /* delivery shipments */
  info[4].name = "d_location_id";
  info[5].name = "d_setup";
  info[6].name = "d_service";
 
  info[7].name = "amount";
  info[8].name = "skills";
  info[9].name = "priority";
  info[10].name = "p_data";
  info[11].name = "d_data";
 
  info[2].eType = INTEGER;            // p_setup
  info[3].eType = INTEGER;            // p_service
  info[5].eType = INTEGER;            // d_setup
  info[6].eType = INTEGER;            // d_service
  info[7].eType = ANY_INTEGER_ARRAY;  // amount
  info[8].eType = INTEGER_ARRAY;      // skills
  info[9].eType = INTEGER;            // priority
  info[10].eType = JSONB;             // p_data
  info[11].eType = JSONB;             // d_data
 
  if (!is_plain) {
    info[2].eType = INTERVAL;         // p_setup
    info[3].eType = INTERVAL;         // p_service
    info[5].eType = INTERVAL;         // d_setup
    info[6].eType = INTERVAL;         // d_service
  }
 
  /* id and location_id of pickup and delivery are mandatory */
  info[0].strict = true;
  info[1].strict = true;
  info[4].strict = true;
 
  db_get_shipments(sql, rows, total_rows, info, kColumnCount, is_plain);
}

References ANY_INTEGER, ANY_INTEGER_ARRAY, Column_info_t::colNumber, db_get_shipments(), Column_info_t::eType, INTEGER, INTEGER_ARRAY, INTERVAL, JSONB, Column_info_t::name, Column_info_t::strict, and Column_info_t::type.

Referenced by process().