From 569c6676a6ddb0ff73821d7693b5e18ddef809b9 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <hans@eds.org>
Date: Thu, 16 Oct 2014 22:51:35 -0400
Subject: Imported Upstream version 3.2.0

---
 test/wordcount.c | 545 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 545 insertions(+)
 create mode 100644 test/wordcount.c

(limited to 'test/wordcount.c')

diff --git a/test/wordcount.c b/test/wordcount.c
new file mode 100644
index 0000000..cf63e98
--- /dev/null
+++ b/test/wordcount.c
@@ -0,0 +1,545 @@
+/*
+** This C program extracts all "words" from an input document and adds them
+** to an SQLite database.  A "word" is any contiguous sequence of alphabetic
+** characters.  All digits, punctuation, and whitespace characters are 
+** word separators.  The database stores a single entry for each distinct
+** word together with a count of the number of occurrences of that word.
+** A fresh database is created automatically on each run.
+**
+**     wordcount DATABASE INPUTFILE
+**
+** The INPUTFILE name can be omitted, in which case input it taken from
+** standard input.
+**
+** Option:
+**
+**     --without-rowid      Use a WITHOUT ROWID table to store the words.
+**     --insert             Use INSERT mode (the default)
+**     --replace            Use REPLACE mode
+**     --select             Use SELECT mode
+**     --update             Use UPDATE mode
+**     --delete             Use DELETE mode
+**     --query              Use QUERY mode
+**     --nocase             Add the NOCASE collating sequence to the words.
+**     --trace              Enable sqlite3_trace() output.
+**     --summary            Show summary information on the collected data.
+**     --stats              Show sqlite3_status() results at the end.
+**     --pagesize NNN       Use a page size of NNN
+**     --cachesize NNN      Use a cache size of NNN
+**     --commit NNN         Commit after every NNN operations
+**     --nosync             Use PRAGMA synchronous=OFF
+**     --journal MMMM       Use PRAGMA journal_mode=MMMM
+**     --timer              Time the operation of this program
+**
+** Modes:
+**
+** Insert mode means:
+**    (1) INSERT OR IGNORE INTO wordcount VALUES($new,1)
+**    (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new -- if (1) is a noop
+**
+** Update mode means:
+**    (1) INSERT OR IGNORE INTO wordcount VALUES($new,0)
+**    (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new
+**
+** Replace mode means:
+**    (1) REPLACE INTO wordcount
+**        VALUES($new,ifnull((SELECT cnt FROM wordcount WHERE word=$new),0)+1);
+**
+** Select mode means:
+**    (1) SELECT 1 FROM wordcount WHERE word=$new
+**    (2) INSERT INTO wordcount VALUES($new,1) -- if (1) returns nothing
+**    (3) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new  --if (1) return TRUE
+**
+** Delete mode means:
+**    (1) DELETE FROM wordcount WHERE word=$new
+**
+** Query mode means:
+**    (1) SELECT cnt FROM wordcount WHERE word=$new
+**
+** Note that delete mode and query mode are only useful for preexisting
+** databases.  The wordcount table is created using IF NOT EXISTS so this
+** utility can be run multiple times on the same database file.  The
+** --without-rowid, --nocase, and --pagesize parameters are only effective
+** when creating a new database and are harmless no-ops on preexisting
+** databases.
+**
+******************************************************************************
+**
+** Compile as follows:
+**
+**    gcc -I. wordcount.c sqlite3.c -ldl -lpthreads
+**
+** Or:
+**
+**    gcc -I. -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION \
+**        wordcount.c sqlite3.c
+*/
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include "sqlite3.h"
+
+/* Return the current wall-clock time */
+static sqlite3_int64 realTime(void){
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
+  if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else{
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+}
+
+/* Print an error message and exit */
+static void fatal_error(const char *zMsg, ...){
+  va_list ap;
+  va_start(ap, zMsg);
+  vfprintf(stderr, zMsg, ap);
+  va_end(ap);
+  exit(1);
+}
+
+/* The sqlite3_trace() callback function */
+static void traceCallback(void *NotUsed, const char *zSql){
+  printf("%s;\n", zSql);
+}
+
+/* An sqlite3_exec() callback that prints results on standard output,
+** each column separated by a single space. */
+static int printResult(void *NotUsed, int nArg, char **azArg, char **azNm){
+  int i;
+  printf("--");
+  for(i=0; i<nArg; i++){
+    printf(" %s", azArg[i] ? azArg[i] : "(null)");
+  }
+  printf("\n");
+  return 0;
+}
+
+
+/*
+** Add one character to a hash
+*/
+static void addCharToHash(unsigned int *a, unsigned char x){
+  if( a[0]<4 ){
+    a[1] = (a[1]<<8) | x;
+    a[0]++;
+  }else{
+    a[2] = (a[2]<<8) | x;
+    a[0]++;
+    if( a[0]==8 ){
+      a[3] += a[1] + a[4];
+      a[4] += a[2] + a[3];
+      a[0] = a[1] = a[2] = 0;
+    }
+  }    
+}
+
+/*
+** Compute the final hash value.
+*/
+static void finalHash(unsigned int *a, char *z){
+  a[3] += a[1] + a[4] + a[0];
+  a[4] += a[2] + a[3];
+  sqlite3_snprintf(17, z, "%08x%08x", a[3], a[4]);
+}
+
+
+/*
+** Implementation of a checksum() aggregate SQL function
+*/
+static void checksumStep(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *zVal;
+  int nVal, i, j;
+  unsigned int *a;
+  a = (unsigned*)sqlite3_aggregate_context(context, sizeof(unsigned int)*5);
+
+  if( a ){
+    for(i=0; i<argc; i++){
+      nVal = sqlite3_value_bytes(argv[i]);
+      zVal = (const unsigned char*)sqlite3_value_text(argv[i]);
+      if( zVal ) for(j=0; j<nVal; j++) addCharToHash(a, zVal[j]);
+      addCharToHash(a, '|');
+    }
+    addCharToHash(a, '\n');
+  }
+}
+static void checksumFinalize(sqlite3_context *context){
+  unsigned int *a;
+  char zResult[24];
+  a = sqlite3_aggregate_context(context, 0);
+  if( a ){
+    finalHash(a, zResult);
+    sqlite3_result_text(context, zResult, -1, SQLITE_TRANSIENT);
+  }
+}
+
+
+/* Define operating modes */
+#define MODE_INSERT     0
+#define MODE_REPLACE    1
+#define MODE_SELECT     2
+#define MODE_UPDATE     3
+#define MODE_DELETE     4
+#define MODE_QUERY      5
+
+int main(int argc, char **argv){
+  const char *zFileToRead = 0;  /* Input file.  NULL for stdin */
+  const char *zDbName = 0;      /* Name of the database file to create */
+  int useWithoutRowid = 0;      /* True for --without-rowid */
+  int iMode = MODE_INSERT;      /* One of MODE_xxxxx */
+  int useNocase = 0;            /* True for --nocase */
+  int doTrace = 0;              /* True for --trace */
+  int showStats = 0;            /* True for --stats */
+  int showSummary = 0;          /* True for --summary */
+  int showTimer = 0;            /* True for --timer */
+  int cacheSize = 0;            /* Desired cache size.  0 means default */
+  int pageSize = 0;             /* Desired page size.  0 means default */
+  int commitInterval = 0;       /* How often to commit.  0 means never */
+  int noSync = 0;               /* True for --nosync */
+  const char *zJMode = 0;       /* Journal mode */
+  int nOp = 0;                  /* Operation counter */
+  int i, j;                     /* Loop counters */
+  sqlite3 *db;                  /* The SQLite database connection */
+  char *zSql;                   /* Constructed SQL statement */
+  sqlite3_stmt *pInsert = 0;    /* The INSERT statement */
+  sqlite3_stmt *pUpdate = 0;    /* The UPDATE statement */
+  sqlite3_stmt *pSelect = 0;    /* The SELECT statement */
+  sqlite3_stmt *pDelete = 0;    /* The DELETE statement */
+  FILE *in;                     /* The open input file */
+  int rc;                       /* Return code from an SQLite interface */
+  int iCur, iHiwtr;             /* Statistics values, current and "highwater" */
+  sqlite3_int64 sumCnt = 0;     /* Sum in QUERY mode */
+  sqlite3_int64 startTime;
+  char zInput[2000];            /* A single line of input */
+
+  /* Process command-line arguments */
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' ){
+      do{ z++; }while( z[0]=='-' );
+      if( strcmp(z,"without-rowid")==0 ){
+        useWithoutRowid = 1;
+      }else if( strcmp(z,"replace")==0 ){
+        iMode = MODE_REPLACE;
+      }else if( strcmp(z,"select")==0 ){
+        iMode = MODE_SELECT;
+      }else if( strcmp(z,"insert")==0 ){
+        iMode = MODE_INSERT;
+      }else if( strcmp(z,"update")==0 ){
+        iMode = MODE_UPDATE;
+      }else if( strcmp(z,"delete")==0 ){
+        iMode = MODE_DELETE;
+      }else if( strcmp(z,"query")==0 ){
+        iMode = MODE_QUERY;
+      }else if( strcmp(z,"nocase")==0 ){
+        useNocase = 1;
+      }else if( strcmp(z,"trace")==0 ){
+        doTrace = 1;
+      }else if( strcmp(z,"nosync")==0 ){
+        noSync = 1;
+      }else if( strcmp(z,"stats")==0 ){
+        showStats = 1;
+      }else if( strcmp(z,"summary")==0 ){
+        showSummary = 1;
+      }else if( strcmp(z,"timer")==0 ){
+        showTimer = i;
+      }else if( strcmp(z,"cachesize")==0 && i<argc-1 ){
+        i++;
+        cacheSize = atoi(argv[i]);
+      }else if( strcmp(z,"pagesize")==0 && i<argc-1 ){
+        i++;
+        pageSize = atoi(argv[i]);
+      }else if( strcmp(z,"commit")==0 && i<argc-1 ){
+        i++;
+        commitInterval = atoi(argv[i]);
+      }else if( strcmp(z,"journal")==0 && i<argc-1 ){
+        zJMode = argv[++i];
+      }else{
+        fatal_error("unknown option: %s\n", argv[i]);
+      }
+    }else if( zDbName==0 ){
+      zDbName = argv[i];
+    }else if( zFileToRead==0 ){
+      zFileToRead = argv[i];
+    }else{
+      fatal_error("surplus argument: %s\n", argv[i]);
+    }
+  }
+  if( zDbName==0 ){
+    fatal_error("Usage: %s [--options] DATABASE [INPUTFILE]\n", argv[0]);
+  }
+  startTime = realTime();
+
+  /* Open the database and the input file */
+  if( sqlite3_open(zDbName, &db) ){
+    fatal_error("Cannot open database file: %s\n", zDbName);
+  }
+  if( zFileToRead ){
+    in = fopen(zFileToRead, "rb");
+    if( in==0 ){
+      fatal_error("Could not open input file \"%s\"\n", zFileToRead);
+    }
+  }else{
+    in = stdin;
+  }
+
+  /* Set database connection options */
+  if( doTrace ) sqlite3_trace(db, traceCallback, 0);
+  if( pageSize ){
+    zSql = sqlite3_mprintf("PRAGMA page_size=%d", pageSize);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+  if( cacheSize ){
+    zSql = sqlite3_mprintf("PRAGMA cache_size=%d", cacheSize);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+  if( noSync ) sqlite3_exec(db, "PRAGMA synchronous=OFF", 0, 0, 0);
+  if( zJMode ){
+    zSql = sqlite3_mprintf("PRAGMA journal_mode=%s", zJMode);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+
+
+  /* Construct the "wordcount" table into which to put the words */
+  if( sqlite3_exec(db, "BEGIN IMMEDIATE", 0, 0, 0) ){
+    fatal_error("Could not start a transaction\n");
+  }
+  zSql = sqlite3_mprintf(
+     "CREATE TABLE IF NOT EXISTS wordcount(\n"
+     "  word TEXT PRIMARY KEY COLLATE %s,\n"
+     "  cnt INTEGER\n"
+     ")%s",
+     useNocase ? "nocase" : "binary",
+     useWithoutRowid ? " WITHOUT ROWID" : ""
+  );
+  if( zSql==0 ) fatal_error("out of memory\n");
+  rc = sqlite3_exec(db, zSql, 0, 0, 0);
+  if( rc ) fatal_error("Could not create the wordcount table: %s.\n",
+                       sqlite3_errmsg(db));
+  sqlite3_free(zSql);
+
+  /* Prepare SQL statements that will be needed */
+  if( iMode==MODE_QUERY ){
+    rc = sqlite3_prepare_v2(db,
+          "SELECT cnt FROM wordcount WHERE word=?1",
+          -1, &pSelect, 0);
+    if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n",
+                          sqlite3_errmsg(db));
+  }
+  if( iMode==MODE_SELECT ){
+    rc = sqlite3_prepare_v2(db,
+          "SELECT 1 FROM wordcount WHERE word=?1",
+          -1, &pSelect, 0);
+    if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n",
+                          sqlite3_errmsg(db));
+    rc = sqlite3_prepare_v2(db,
+          "INSERT INTO wordcount(word,cnt) VALUES(?1,1)",
+          -1, &pInsert, 0);
+    if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n",
+                         sqlite3_errmsg(db));
+  }
+  if( iMode==MODE_SELECT || iMode==MODE_UPDATE || iMode==MODE_INSERT ){
+    rc = sqlite3_prepare_v2(db,
+          "UPDATE wordcount SET cnt=cnt+1 WHERE word=?1",
+          -1, &pUpdate, 0);
+    if( rc ) fatal_error("Could not prepare the UPDATE statement: %s\n",
+                         sqlite3_errmsg(db));
+  }
+  if( iMode==MODE_INSERT ){
+    rc = sqlite3_prepare_v2(db,
+          "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,1)",
+          -1, &pInsert, 0);
+    if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n",
+                         sqlite3_errmsg(db));
+  }
+  if( iMode==MODE_UPDATE ){
+    rc = sqlite3_prepare_v2(db,
+          "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,0)",
+          -1, &pInsert, 0);
+    if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n",
+                         sqlite3_errmsg(db));
+  }
+  if( iMode==MODE_REPLACE ){
+    rc = sqlite3_prepare_v2(db,
+          "REPLACE INTO wordcount(word,cnt)"
+          "VALUES(?1,coalesce((SELECT cnt FROM wordcount WHERE word=?1),0)+1)",
+          -1, &pInsert, 0);
+    if( rc ) fatal_error("Could not prepare the REPLACE statement: %s\n",
+                          sqlite3_errmsg(db));
+  }
+  if( iMode==MODE_DELETE ){
+    rc = sqlite3_prepare_v2(db,
+          "DELETE FROM wordcount WHERE word=?1",
+          -1, &pDelete, 0);
+    if( rc ) fatal_error("Could not prepare the DELETE statement: %s\n",
+                         sqlite3_errmsg(db));
+  }
+
+  /* Process the input file */
+  while( fgets(zInput, sizeof(zInput), in) ){
+    for(i=0; zInput[i]; i++){
+      if( !isalpha(zInput[i]) ) continue;
+      for(j=i+1; isalpha(zInput[j]); j++){}
+
+      /* Found a new word at zInput[i] that is j-i bytes long. 
+      ** Process it into the wordcount table.  */
+      if( iMode==MODE_DELETE ){
+        sqlite3_bind_text(pDelete, 1, zInput+i, j-i, SQLITE_STATIC);
+        if( sqlite3_step(pDelete)!=SQLITE_DONE ){
+          fatal_error("DELETE failed: %s\n", sqlite3_errmsg(db));
+        }
+        sqlite3_reset(pDelete);
+      }else if( iMode==MODE_SELECT ){
+        sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC);
+        rc = sqlite3_step(pSelect);
+        sqlite3_reset(pSelect);
+        if( rc==SQLITE_ROW ){
+          sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC);
+          if( sqlite3_step(pUpdate)!=SQLITE_DONE ){
+            fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db));
+          }
+          sqlite3_reset(pUpdate);
+        }else if( rc==SQLITE_DONE ){
+          sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC);
+          if( sqlite3_step(pInsert)!=SQLITE_DONE ){
+            fatal_error("Insert failed: %s\n", sqlite3_errmsg(db));
+          }
+          sqlite3_reset(pInsert);
+        }else{
+          fatal_error("SELECT failed: %s\n", sqlite3_errmsg(db));
+        }
+      }else if( iMode==MODE_QUERY ){
+        sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC);
+        if( sqlite3_step(pSelect)==SQLITE_ROW ){
+          sumCnt += sqlite3_column_int64(pSelect, 0);
+        }
+        sqlite3_reset(pSelect);
+      }else{
+        sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC);
+        if( sqlite3_step(pInsert)!=SQLITE_DONE ){
+          fatal_error("INSERT failed: %s\n", sqlite3_errmsg(db));
+        }
+        sqlite3_reset(pInsert);
+        if( iMode==MODE_UPDATE
+         || (iMode==MODE_INSERT && sqlite3_changes(db)==0)
+        ){
+          sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC);
+          if( sqlite3_step(pUpdate)!=SQLITE_DONE ){
+            fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db));
+          }
+          sqlite3_reset(pUpdate);
+        }
+      }
+      i = j-1;
+
+      /* Increment the operation counter.  Do a COMMIT if it is time. */
+      nOp++;
+      if( commitInterval>0 && (nOp%commitInterval)==0 ){
+        sqlite3_exec(db, "COMMIT; BEGIN IMMEDIATE", 0, 0, 0);
+      }
+    }
+  }
+  sqlite3_exec(db, "COMMIT", 0, 0, 0);
+  if( zFileToRead ) fclose(in);
+  sqlite3_finalize(pInsert);
+  sqlite3_finalize(pUpdate);
+  sqlite3_finalize(pSelect);
+  sqlite3_finalize(pDelete);
+
+  if( iMode==MODE_QUERY ){
+    printf("sum of cnt: %lld\n", sumCnt);
+    rc = sqlite3_prepare_v2(db,"SELECT sum(cnt*cnt) FROM wordcount", -1,
+                            &pSelect, 0);
+    if( rc==SQLITE_OK && sqlite3_step(pSelect)==SQLITE_ROW ){
+      printf("double-check: %lld\n", sqlite3_column_int64(pSelect, 0));
+    }
+    sqlite3_finalize(pSelect);
+  }
+
+
+  if( showTimer ){
+    sqlite3_int64 elapseTime = realTime() - startTime;
+    fprintf(stderr, "%3d.%03d wordcount", (int)(elapseTime/1000),
+                                   (int)(elapseTime%1000));
+    for(i=1; i<argc; i++) if( i!=showTimer ) fprintf(stderr, " %s", argv[i]);
+    fprintf(stderr, "\n");
+  }
+
+  if( showSummary ){
+    sqlite3_create_function(db, "checksum", -1, SQLITE_UTF8, 0,
+                            0, checksumStep, checksumFinalize);
+    sqlite3_exec(db, 
+      "SELECT 'count(*):  ', count(*) FROM wordcount;\n"
+      "SELECT 'sum(cnt):  ', sum(cnt) FROM wordcount;\n"
+      "SELECT 'max(cnt):  ', max(cnt) FROM wordcount;\n"
+      "SELECT 'avg(cnt):  ', avg(cnt) FROM wordcount;\n"
+      "SELECT 'sum(cnt=1):', sum(cnt=1) FROM wordcount;\n"
+      "SELECT 'top 10:    ', group_concat(word, ', ') FROM "
+         "(SELECT word FROM wordcount ORDER BY cnt DESC, word LIMIT 10);\n"
+      "SELECT 'checksum:  ', checksum(word, cnt) FROM "
+         "(SELECT word, cnt FROM wordcount ORDER BY word);\n"
+      "PRAGMA integrity_check;\n",
+      printResult, 0, 0);
+  }
+
+  /* Database connection statistics printed after both prepared statements
+  ** have been finalized */
+  if( showStats ){
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHiwtr, 0);
+    printf("-- Lookaside Slots Used:        %d (max %d)\n", iCur,iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHiwtr, 0);
+    printf("-- Successful lookasides:       %d\n", iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur,&iHiwtr,0);
+    printf("-- Lookaside size faults:       %d\n", iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur,&iHiwtr,0);
+    printf("-- Lookaside OOM faults:        %d\n", iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, 0);
+    printf("-- Pager Heap Usage:            %d bytes\n", iCur);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1);
+    printf("-- Page cache hits:             %d\n", iCur);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1);
+    printf("-- Page cache misses:           %d\n", iCur); 
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1);
+    printf("-- Page cache writes:           %d\n", iCur); 
+    sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, 0);
+    printf("-- Schema Heap Usage:           %d bytes\n", iCur); 
+    sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, 0);
+    printf("-- Statement Heap Usage:        %d bytes\n", iCur); 
+  }
+
+  sqlite3_close(db);
+
+  /* Global memory usage statistics printed after the database connection
+  ** has closed.  Memory usage should be zero at this point. */
+  if( showStats ){
+    sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHiwtr, 0);
+    printf("-- Memory Used (bytes):         %d (max %d)\n", iCur,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHiwtr, 0);
+    printf("-- Outstanding Allocations:     %d (max %d)\n", iCur,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHiwtr, 0);
+    printf("-- Pcache Overflow Bytes:       %d (max %d)\n", iCur,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_SCRATCH_OVERFLOW, &iCur, &iHiwtr, 0);
+    printf("-- Scratch Overflow Bytes:      %d (max %d)\n", iCur,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHiwtr, 0);
+    printf("-- Largest Allocation:          %d bytes\n",iHiwtr);
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHiwtr, 0);
+    printf("-- Largest Pcache Allocation:   %d bytes\n",iHiwtr);
+    sqlite3_status(SQLITE_STATUS_SCRATCH_SIZE, &iCur, &iHiwtr, 0);
+    printf("-- Largest Scratch Allocation:  %d bytes\n", iHiwtr);
+  }
+  return 0;
+}
-- 
cgit v1.2.3