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SQLite training in Houston TX on 2019-11-05 (details)
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Overview
Comment:Fix the threadtest3 test program so that it works with VFSes that omit the xCurrentTime() method and supply only xCurrentTimeInt64().
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SHA1: 3b155855f3d5918f1df7dbd19783215b3da0ca3e
User & Date: drh 2015-11-30 19:15:25
Context
2015-11-30
20:36
The EOVERFLOW errors from fstat() is not possible unless SQLite has been compiled with SQLITE_DISABLE_LFS. check-in: 8cfb7a50 user: drh tags: trunk
19:15
Fix the threadtest3 test program so that it works with VFSes that omit the xCurrentTime() method and supply only xCurrentTimeInt64(). check-in: 3b155855 user: drh tags: trunk
12:01
Add the "colUsed" field to the sqlite3_index_info structure passed to virtual table xBestIndex methods. To indicate the subset of the virtual table columns that may be required by the current scan. check-in: 47f10b7e user: dan tags: trunk
Changes
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Changes to test/threadtest3.c.

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  }
}

/* 
** Used by setstoptime() and timetostop().
*/
static double timelimit = 0.0;



static sqlite3_vfs *pTimelimitVfs = 0;











static void setstoptime_x(
  Error *pErr,                    /* IN/OUT: Error code */
  int nMs                         /* Milliseconds until "stop time" */
){
  if( pErr->rc==SQLITE_OK ){
    double t;
    int rc;
    pTimelimitVfs = sqlite3_vfs_find(0);
    rc = pTimelimitVfs->xCurrentTime(pTimelimitVfs, &t);
    if( rc!=SQLITE_OK ){
      pErr->rc = rc;
    }else{
      timelimit = t + ((double)nMs)/(1000.0*60.0*60.0*24.0);
    }
  }
}

static int timetostop_x(
  Error *pErr                     /* IN/OUT: Error code */
){
  int ret = 1;
  if( pErr->rc==SQLITE_OK ){
    double t;
    int rc;
    rc = pTimelimitVfs->xCurrentTime(pTimelimitVfs, &t);
    if( rc!=SQLITE_OK ){
      pErr->rc = rc;
    }else{
      ret = (t >= timelimit);
    }
  }
  return ret;
}


/*************************************************************************
**************************************************************************
**************************************************************************







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  }
}

/* 
** Used by setstoptime() and timetostop().
*/
static double timelimit = 0.0;

static double currentTime(void){
  double t;
  static sqlite3_vfs *pTimelimitVfs = 0;
  if( pTimelimitVfs==0 ) pTimelimitVfs = sqlite3_vfs_find(0);
  if( pTimelimitVfs->iVersion>=1 && pTimelimitVfs->xCurrentTimeInt64!=0 ){
    sqlite3_int64 tm;
    pTimelimitVfs->xCurrentTimeInt64(pTimelimitVfs, &tm);
    t = tm/86400000.0;
  }else{
    pTimelimitVfs->xCurrentTime(pTimelimitVfs, &t);
  }
  return t;
}

static void setstoptime_x(
  Error *pErr,                    /* IN/OUT: Error code */
  int nMs                         /* Milliseconds until "stop time" */
){
  if( pErr->rc==SQLITE_OK ){
    double t = currentTime();






    timelimit = t + ((double)nMs)/(1000.0*60.0*60.0*24.0);
  }
}


static int timetostop_x(
  Error *pErr                     /* IN/OUT: Error code */
){
  int ret = 1;
  if( pErr->rc==SQLITE_OK ){
    double t = currentTime();





    ret = (t >= timelimit);
  }

  return ret;
}


/*************************************************************************
**************************************************************************
**************************************************************************