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  • Committer: Padraig O'Sullivan
  • Date: 2009-09-13 01:03:01 UTC
  • mto: (1126.9.2 captain-20090915-01)
  • mto: This revision was merged to the branch mainline in revision 1133.
  • Revision ID: osullivan.padraig@gmail.com-20090913010301-tcvvezipx1124acy
Added calls to the dtrace delete begin/end probes.

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drizzled/temporal_format.cc
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 * Implementation of the server's date and time string matching utility.
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 */
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#include "config.h"
 
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#include "drizzled/global.h"
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#include "drizzled/temporal_format.h"
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#include "drizzled/temporal.h"
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#include <string> /** C++ string class used */
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#include <string.h>
 
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#include <vector>
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#include PCRE_HEADER
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#include <string>
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#include <vector>
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using namespace std;
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namespace drizzled
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{
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TemporalFormat::TemporalFormat(const char *pattern) :
 
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  TemporalFormat::TemporalFormat(const char *pattern)
 
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  :
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  _pattern(pattern)
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, _error_offset(0)
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, _error(NULL)
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, _usecond_part_index(0)
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, _nsecond_part_index(0)
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{
 
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  /* Make sure we've got no junk in the match_vector. */
 
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  memset(_match_vector, 0, sizeof(_match_vector));
 
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  /* Compile our regular expression */
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  _re= pcre_compile(pattern
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                    , 0 /* Default options */
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{
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  if (! is_valid()) 
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    return false;
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  int32_t match_vector[OUT_VECTOR_SIZE]; /**< Stores match substring indexes */
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  /* Make sure we've got no junk in the match_vector. */
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  memset(match_vector, 0, sizeof(match_vector));
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  /* Simply check the subject against the compiled regular expression */
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  int32_t result= pcre_exec(_re
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                            , NULL /* No extra data */
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                            , data_len
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                            , 0 /* Start at offset 0 of subject...*/
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                            , 0 /* Default options */
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                            , match_vector
 
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                            , _match_vector
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                            , OUT_VECTOR_SIZE
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                            );
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  if (result < 0)
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    return false;
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  /* C++ string class easy to use substr() method is very useful here */
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  string copy_data(data, data_len);
 
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  std::string copy_data(data, data_len);
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  /* 
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   * OK, we have the expected substring matches, so grab
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   * the various temporal parts from the subject string
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   */
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  if (_year_part_index > 1)
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  {
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    size_t year_start= match_vector[_year_part_index];
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    size_t year_len= match_vector[_year_part_index + 1] - match_vector[_year_part_index];
 
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    size_t year_start= _match_vector[_year_part_index];
 
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    size_t year_len= _match_vector[_year_part_index + 1] - _match_vector[_year_part_index];
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    to->_years= atoi(copy_data.substr(year_start, year_len).c_str());
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    if (year_len == 2)
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      to->_years+= (to->_years >= DRIZZLE_YY_PART_YEAR ? 1900 : 2000);
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  }
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  if (_month_part_index > 1)
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  {
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    size_t month_start= match_vector[_month_part_index];
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    size_t month_len= match_vector[_month_part_index + 1] - match_vector[_month_part_index];
 
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    size_t month_start= _match_vector[_month_part_index];
 
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    size_t month_len= _match_vector[_month_part_index + 1] - _match_vector[_month_part_index];
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    to->_months= atoi(copy_data.substr(month_start, month_len).c_str());
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  }
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  if (_day_part_index > 1)
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  {
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    size_t day_start= match_vector[_day_part_index];
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    size_t day_len= match_vector[_day_part_index + 1] - match_vector[_day_part_index];
 
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    size_t day_start= _match_vector[_day_part_index];
 
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    size_t day_len= _match_vector[_day_part_index + 1] - _match_vector[_day_part_index];
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    to->_days= atoi(copy_data.substr(day_start, day_len).c_str());
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  }
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  if (_hour_part_index > 1)
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  {
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    size_t hour_start= match_vector[_hour_part_index];
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    size_t hour_len= match_vector[_hour_part_index + 1] - match_vector[_hour_part_index];
 
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    size_t hour_start= _match_vector[_hour_part_index];
 
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    size_t hour_len= _match_vector[_hour_part_index + 1] - _match_vector[_hour_part_index];
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    to->_hours= atoi(copy_data.substr(hour_start, hour_len).c_str());
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  }
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  if (_minute_part_index > 1)
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  {
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    size_t minute_start= match_vector[_minute_part_index];
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    size_t minute_len= match_vector[_minute_part_index + 1] - match_vector[_minute_part_index];
 
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    size_t minute_start= _match_vector[_minute_part_index];
 
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    size_t minute_len= _match_vector[_minute_part_index + 1] - _match_vector[_minute_part_index];
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    to->_minutes= atoi(copy_data.substr(minute_start, minute_len).c_str());
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  }
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  if (_second_part_index > 1)
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  {
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    size_t second_start= match_vector[_second_part_index];
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    size_t second_len= match_vector[_second_part_index + 1] - match_vector[_second_part_index];
 
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    size_t second_start= _match_vector[_second_part_index];
 
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    size_t second_len= _match_vector[_second_part_index + 1] - _match_vector[_second_part_index];
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    to->_seconds= atoi(copy_data.substr(second_start, second_len).c_str());
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  }
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  if (_usecond_part_index > 1)
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  {
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    size_t usecond_start= match_vector[_usecond_part_index];
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    size_t usecond_len= match_vector[_usecond_part_index + 1] - match_vector[_usecond_part_index];
 
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    size_t usecond_start= _match_vector[_usecond_part_index];
 
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    size_t usecond_len= _match_vector[_usecond_part_index + 1] - _match_vector[_usecond_part_index];
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    /* 
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     * For microseconds, which are millionth of 1 second, 
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     * we must ensure that we produce a correct result, 
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  }
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  if (_nsecond_part_index > 1)
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  {
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    size_t nsecond_start= match_vector[_nsecond_part_index];
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    size_t nsecond_len= match_vector[_nsecond_part_index + 1] - match_vector[_nsecond_part_index];
 
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    size_t nsecond_start= _match_vector[_nsecond_part_index];
 
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    size_t nsecond_len= _match_vector[_nsecond_part_index + 1] - _match_vector[_nsecond_part_index];
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    /* 
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     * For nanoseconds, which are 1 billionth of a second, 
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     * we must ensure that we produce a correct result, 
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  return true;
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}
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} /* end namespace drizzled */
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#define COUNT_KNOWN_FORMATS 19
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, {"^(\\d{1,2})\\.(\\d{1,6})$", 0, 0, 0, 0, 0, 1, 2, 0} /* [S]S.uuuuuu */
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};
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vector<TemporalFormat *> known_datetime_formats;
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vector<TemporalFormat *> known_date_formats;
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vector<TemporalFormat *> known_time_formats;
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vector<TemporalFormat *> all_temporal_formats;
 
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std::vector<drizzled::TemporalFormat *> known_datetime_formats;
 
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std::vector<drizzled::TemporalFormat *> known_date_formats;
 
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std::vector<drizzled::TemporalFormat *> known_time_formats;
 
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std::vector<drizzled::TemporalFormat *> all_temporal_formats;
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/**
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 * We allocate and initialize all known date/time formats.
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bool init_temporal_formats()
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{
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  /* Compile all the regular expressions for the datetime formats */
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  TemporalFormat *tmp;
 
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  drizzled::TemporalFormat *tmp;
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  struct temporal_format_args current_format_args;
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  int32_t x;
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  for (x= 0; x<COUNT_KNOWN_FORMATS; ++x)
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  {
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    current_format_args= __format_args[x];
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    tmp= new TemporalFormat(current_format_args.pattern);
 
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    tmp= new drizzled::TemporalFormat(current_format_args.pattern);
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    tmp->set_year_part_index(current_format_args.year_part_index);
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    tmp->set_month_part_index(current_format_args.month_part_index);
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    tmp->set_day_part_index(current_format_args.day_part_index);
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/** Free all allocated temporal formats */
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void deinit_temporal_formats()
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{
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  vector<TemporalFormat *>::iterator p= all_temporal_formats.begin();
 
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  std::vector<drizzled::TemporalFormat *>::iterator p= all_temporal_formats.begin();
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  while (p != all_temporal_formats.end())
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  {
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    delete *p;
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  known_time_formats.clear();
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  all_temporal_formats.clear();
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}
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} /* end namespace drizzled */