Parser_dh.c

/*@HEADER
// ***********************************************************************
//
//       Ifpack: Object-Oriented Algebraic Preconditioner Package
//                 Copyright (2002) Sandia Corporation
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#include "Parser_dh.h"
#include "Mem_dh.h"

typedef struct _optionsNode OptionsNode;

struct _parser_dh
{
  OptionsNode *head;
  OptionsNode *tail;
};

struct _optionsNode
{
  char *name;
  char *value;
  OptionsNode *next;
};

static bool find (Parser_dh p, char *option, OptionsNode ** ptr);
static void init_from_default_settings_private (Parser_dh p);


#undef __FUNC__
#define __FUNC__ "Parser_dhCreate"
void
Parser_dhCreate (Parser_dh * p)
{
  START_FUNC_DH OptionsNode * ptr;

  /* allocate storage for object */
  struct _parser_dh *tmp =
    (struct _parser_dh *) MALLOC_DH (sizeof (struct _parser_dh));
  CHECK_V_ERROR;
  *p = tmp;

  /* consruct header node */
  tmp->head = tmp->tail = (OptionsNode *) MALLOC_DH (sizeof (OptionsNode));
  CHECK_V_ERROR;
  ptr = tmp->head;
  ptr->next = NULL;
  ptr->name = (char *) MALLOC_DH (6 * sizeof (char));
  CHECK_V_ERROR;
  ptr->value = (char *) MALLOC_DH (6 * sizeof (char));
  CHECK_V_ERROR;
  strcpy (ptr->name, "JUNK");
  strcpy (ptr->value, "JUNK");
END_FUNC_DH}

#undef __FUNC__
#define __FUNC__ "Parser_dhDestroy"
void
Parser_dhDestroy (Parser_dh p)
{
  START_FUNC_DH OptionsNode * ptr2 = p->head, *ptr1 = ptr2;
  if (ptr1 != NULL)
    {
      do
    {
      ptr2 = ptr2->next;
      FREE_DH (ptr1->name);
      FREE_DH (ptr1->value);
      FREE_DH (ptr1);
      ptr1 = ptr2;
    }
      while (ptr1 != NULL);
    }
  FREE_DH (p);
END_FUNC_DH}


#undef __FUNC__
#define __FUNC__ "Parser_dhUpdateFromFile"
void
Parser_dhUpdateFromFile (Parser_dh p, char *filename)
{
  START_FUNC_DH_2 char line[80], name[80], value[80];
  FILE *fp;

  if ((fp = fopen (filename, "r")) == NULL)
    {
      sprintf (msgBuf_dh, "can't open >>%s<< for reading", filename);
      SET_INFO (msgBuf_dh);
    }
  else
    {
      sprintf (msgBuf_dh, "updating parser from file: >>%s<<", filename);
      SET_INFO (msgBuf_dh);
      while (!feof (fp))
    {
      if (fgets (line, 80, fp) == NULL)
        break;
      if (line[0] != '#')
        {
          if (sscanf (line, "%s %s", name, value) != 2)
        break;
          Parser_dhInsert (p, name, value);
        }
    }
      fclose (fp);
    }
END_FUNC_DH_2}

#undef __FUNC__
#define __FUNC__ "Parser_dhInit"
void
Parser_dhInit (Parser_dh p, int argc, char *argv[])
{
  START_FUNC_DH_2 int j;

  /* read option names and values from default database */
/*  Parser_dhUpdateFromFile(p, MASTER_OPTIONS_LIST); CHECK_V_ERROR;
*/
  init_from_default_settings_private (p);
  CHECK_V_ERROR;

  /* attempt to update from "./database" in local directory */
  Parser_dhUpdateFromFile (p, "./database");
  CHECK_V_ERROR;

  /* attempt to update from specified file */
  for (j = 1; j < argc; ++j)
    {
      if (strcmp (argv[j], "-db_filename") == 0)
    {
      ++j;
      if (j < argc)
        {
          Parser_dhUpdateFromFile (p, argv[j]);
          CHECK_V_ERROR;
        }
    }
    }

  /* update from command-line options and values */
  {
    int i = 0;
    while (i < argc)
      {
    if (argv[i][0] == '-')
      {
        char value[] = { "1" }; /* option's default value */
        bool flag = false;  /* yuck! flag for negative numbers */
        if (i + 1 < argc && argv[i + 1][0] == '-'
        && argv[i + 1][1] == '-')
          {
        flag = true;
          }

        if ((i + 1 == argc || argv[i + 1][0] == '-') && !flag)
          {
        Parser_dhInsert (p, argv[i], value);
          }
        else if (flag)
          {
        Parser_dhInsert (p, argv[i], argv[i + 1] + 1);  /* insert a negative number */
          }
        else
          {
        Parser_dhInsert (p, argv[i], argv[i + 1]);
          }
      }
    ++i;
      }
  }
END_FUNC_DH_2}


#undef __FUNC__
#define __FUNC__ "Parser_dhHasSwitch"
bool
Parser_dhHasSwitch (Parser_dh p, char *s)
{
  START_FUNC_DH_2 bool has_switch = false;
  OptionsNode *node;

  if (p != NULL && find (p, s, &node))
    {
      if (!strcmp (node->value, "0"))
    {
      has_switch = false;
    }
      else if (!strcmp (node->value, "false"))
    {
      has_switch = false;
    }
      else if (!strcmp (node->value, "False"))
    {
      has_switch = false;
    }
      else if (!strcmp (node->value, "FALSE"))
    {
      has_switch = false;
    }
      else
    {
      has_switch = true;
    }
    }
END_FUNC_VAL_2 (has_switch)}

/* returns false if option isn't found, or if
 * its value is zero.
 */
#undef __FUNC__
#define __FUNC__ "Parser_dhReadInt"
bool
Parser_dhReadInt (Parser_dh p, char *in, int *out)
{
  START_FUNC_DH_2 bool has_switch = false;
  OptionsNode *node;

  if (p != NULL && find (p, in, &node))
    {
      *out = atoi (node->value);
      if (!strcmp (node->value, "0"))
    {
      has_switch = false;
    }
      else
    {
      has_switch = true;
    }
    }
END_FUNC_VAL_2 (has_switch)}


#undef __FUNC__
#define __FUNC__ "Parser_dhReadDouble"
bool
Parser_dhReadDouble (Parser_dh p, char *in, double *out)
{
  START_FUNC_DH_2 bool optionExists = false;
  OptionsNode *node;

  if (p != NULL && find (p, in, &node))
    {
      *out = atof (node->value);
      optionExists = true;
    }
END_FUNC_VAL_2 (optionExists)}

#undef __FUNC__
#define __FUNC__ "Parser_dhReadString"
bool
Parser_dhReadString (Parser_dh p, char *in, char **out)
{
  START_FUNC_DH_2 bool optionExists = false;
  OptionsNode *node;

  if (p != NULL && find (p, in, &node))
    {
      *out = node->value;
      optionExists = true;
    }
END_FUNC_VAL_2 (optionExists)}


#undef __FUNC__
#define __FUNC__ "Parser_dhPrint"
void
Parser_dhPrint (Parser_dh p, FILE * fp, bool allPrint)
{
  START_FUNC_DH_2 OptionsNode * ptr = p->head;

  if (fp == NULL)
    SET_V_ERROR ("fp == NULL");

  if (myid_dh == 0 || allPrint)
    {
      fprintf (fp, "------------------------ registered options:\n");
      if (ptr == NULL)
    {
      fprintf (fp, "Parser object is invalid; nothing to print!\n");
    }
      else
    {
      ptr = ptr->next;
      while (ptr != NULL)
        {
          fprintf (fp, "   %s  %s\n", ptr->name, ptr->value);
          fflush (fp);
          ptr = ptr->next;
        }
    }
      fprintf (fp, "\n");
      fflush (fp);
    }
END_FUNC_DH_2}

#undef __FUNC__
#define __FUNC__ "Parser_dhInsert"
void
Parser_dhInsert (Parser_dh p, char *option, char *value)
{
  START_FUNC_DH_2 OptionsNode * node;
  int length;

  if (p == NULL)
    goto PARSER_NOT_INITED;

  /* if option is already in the list, update its value */
  if (find (p, option, &node))
    {
      int length2 = strlen (node->value) + 1;
      length = strlen (value) + 1;
      if (length2 < length)
    {
      FREE_DH (node->value);
      node->value = (char *) MALLOC_DH (length * sizeof (char));
      CHECK_V_ERROR;
    }
      strcpy (node->value, value);
    }
  /* otherwise, add a new node to the list */
  else
    {
      node = p->tail;
      p->tail = node->next = (OptionsNode *) MALLOC_DH (sizeof (OptionsNode));
      CHECK_V_ERROR;
      node = node->next;
      length = strlen (option) + 1;
      node->name = (char *) MALLOC_DH (length * sizeof (char));
      CHECK_V_ERROR;
      strcpy (node->name, option);
      length = strlen (value) + 1;
      node->value = (char *) MALLOC_DH (length * sizeof (char));
      CHECK_V_ERROR;
      strcpy (node->value, value);
      node->next = NULL;
    }

PARSER_NOT_INITED:
  ;

END_FUNC_DH_2}

#undef __FUNC__
#define __FUNC__ "find"
bool
find (Parser_dh p, char *option, OptionsNode ** ptr)
{
  START_FUNC_DH_2 OptionsNode * tmpPtr = p->head;
  bool foundit = false;
  while (tmpPtr != NULL)
    {
      if (strcmp (tmpPtr->name, option) == 0)
    {
      foundit = true;
      *ptr = tmpPtr;
      break;
    }
      tmpPtr = tmpPtr->next;
    }
END_FUNC_VAL_2 (foundit)}


#undef __FUNC__
#define __FUNC__ "init_from_default_settings_private"
void
init_from_default_settings_private (Parser_dh p)
{
  START_FUNC_DH_2
    /* default is to intercept certain signals
       (floating point error, segmentation violation, etc.)
     */
    Parser_dhInsert (p, "-sig_dh", "1");
  CHECK_V_ERROR;

  /* used by MetGenFD */
  Parser_dhInsert (p, "-px", "1");
  CHECK_V_ERROR;
  Parser_dhInsert (p, "-py", "1");
  CHECK_V_ERROR;
  Parser_dhInsert (p, "-pz", "0");
  CHECK_V_ERROR;
  Parser_dhInsert (p, "-m", "4");
  CHECK_V_ERROR;

  Parser_dhInsert (p, "-xx_coeff", "-1.0");
  CHECK_V_ERROR;
  Parser_dhInsert (p, "-yy_coeff", "-1.0");
  CHECK_V_ERROR;
  Parser_dhInsert (p, "-zz_coeff", "-1.0");
  CHECK_V_ERROR;

  Parser_dhInsert (p, "-level", "1");
  CHECK_V_ERROR;

  Parser_dhInsert (p, "-printStats", "0");
  CHECK_V_ERROR;
END_FUNC_DH_2}