SQLite

  $(TOP)/src/date.c \
  $(TOP)/src/delete.c \
  $(TOP)/src/expr.c \
  $(TOP)/src/fault.c \
  $(TOP)/src/func.c \
  $(TOP)/src/hash.c \
  $(TOP)/src/hash.h \
  $(TOP)/src/hwtime.h \
  $(TOP)/src/insert.c \
  $(TOP)/src/journal.c \
  $(TOP)/src/legacy.c \
  $(TOP)/src/loadext.c \
  $(TOP)/src/main.c \
  $(TOP)/src/malloc.c \
  $(TOP)/src/mem1.c \

# Header files used by all library source files.
#
HDR = \
   sqlite3.h  \
   $(TOP)/src/btree.h \
   $(TOP)/src/btreeInt.h \
   $(TOP)/src/hash.h \
   $(TOP)/src/hwtime.h \
   $(TOP)/src/sqliteLimit.h \
   $(TOP)/src/mutex.h \
   opcodes.h \
   $(TOP)/src/os.h \
   $(TOP)/src/os_common.h \
   $(TOP)/src/sqlite3ext.h \
   $(TOP)/src/sqliteInt.h  \

  $(TOP)/src/date.c \
  $(TOP)/src/delete.c \
  $(TOP)/src/expr.c \
  $(TOP)/src/fault.c \
  $(TOP)/src/func.c \
  $(TOP)/src/hash.c \
  $(TOP)/src/hash.h \
  $(TOP)/src/hwtime.h \
  $(TOP)/src/insert.c \
  $(TOP)/src/journal.c \
  $(TOP)/src/legacy.c \
  $(TOP)/src/loadext.c \
  $(TOP)/src/main.c \
  $(TOP)/src/malloc.c \
  $(TOP)/src/mem1.c \

# Header files used by all library source files.
#
HDR = \
   $(TOP)/src/btree.h \
   $(TOP)/src/btreeInt.h \
   $(TOP)/src/hash.h \
   $(TOP)/src/hwtime.h \
   keywordhash.h \
   $(TOP)/src/mutex.h \
   opcodes.h \
   $(TOP)/src/os.h \
   $(TOP)/src/os_common.h \
   $(TOP)/src/pager.h \
   parse.h  \

/*
** 2008 May 27
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
******************************************************************************
**
** This file contains inline asm code for retrieving "high-performance"
** counters for x86 class CPUs.
**
** $Id: hwtime.h,v 1.1 2008/05/29 20:22:37 shane Exp $
*/
#ifndef _HWTIME_H_
#define _HWTIME_H_

/*
** The following routine only works on pentium-class (or newer) processors.
** It uses the RDTSC opcode to read the cycle count value out of the
** processor and returns that value.  This can be used for high-res
** profiling.
*/
#if (defined(__GNUC__) || defined(_MSC_VER)) && \
      (defined(i386) || defined(__i386__) || defined(_M_IX86))

  #if defined(__GNUC__)

  __inline__ sqlite_uint64 sqlite3Hwtime(void){
     unsigned int lo, hi;
     /* We cannot use "=A", since this would use %rax on x86_64 */
     __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
     return (sqlite_uint64)hi << 32 | lo;
  }

  #elif defined(_MSC_VER)

  __declspec(naked) __inline sqlite_uint64 __cdecl sqlite3Hwtime(void){
     __asm {
        rdtsc
        ret       ; return value at EDX:EAX
     }
  }

  #endif

#else

  #error Need implementation of sqlite3Hwtime() for your platform.

  /*
  ** To compile without implementing sqlite3Hwtime() for your platform,
  ** you can remove the above #error and use the following
  ** stub function.  You will lose timing support for many
  ** of the debugging and testing utilities, but it should at
  ** least compile and run.
  */
  sqlite_uint64 sqlite3Hwtime(void){ return ((sqlite_uint64)0); }

#endif

#endif /* !defined(_HWTIME_H_) */

** This file contains macros and a little bit of code that is common to
** all of the platform-specific files (os_*.c) and is #included into those
** files.
**
** This file should be #included by the os_*.c files only.  It is not a
** general purpose header file.
**
** $Id: os_common.h,v 1.37 2008/05/29 20:22:37 shane Exp $
*/
#ifndef _OS_COMMON_H_
#define _OS_COMMON_H_

/*
** At least two bugs have slipped in because we changed the MEMORY_DEBUG
** macro to SQLITE_DEBUG and some older makefiles have not yet made the
** switch.  The following code should catch this problem at compile-time.
*/
#ifdef MEMORY_DEBUG

#endif

/*
** Macros for performance tracing.  Normally turned off.  Only works
** on i486 hardware.
*/
#ifdef SQLITE_PERFORMANCE_TRACE


/* 
** hwtime.h contains inline assembler code for implementing 
** high-performance timing routines.

*/
#include "hwtime.h"

static sqlite_uint64 g_start;
static sqlite_uint64 g_elapsed;
#define TIMER_START       g_start=sqlite3Hwtime()
#define TIMER_END         g_elapsed=sqlite3Hwtime()-g_start
#define TIMER_ELAPSED     g_elapsed
#else
#define TIMER_START
#define TIMER_END
#define TIMER_ELAPSED     ((sqlite_uint64)0)
#endif

/*
** If we compile with the SQLITE_TEST macro set, then the following block
** of code will give us the ability to simulate a disk I/O error.  This
** is used for testing the I/O recovery logic.
*/

*/
#ifdef SQLITE_TEST
int sqlite3_open_file_count = 0;
#define OpenCounter(X)  sqlite3_open_file_count+=(X)
#else
#define OpenCounter(X)
#endif

#endif /* !defined(_OS_COMMON_H_) */

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
******************************************************************************
**
** This file contains code that is specific to Unix systems.
**
** $Id: os_unix.c,v 1.183 2008/05/29 20:22:37 shane Exp $
*/
#include "sqliteInt.h"
#if OS_UNIX              /* This file is used on unix only */

/* #define SQLITE_ENABLE_LOCKING_STYLE 0 */

/*

  SimulateIOError( newOffset-- );
  if( newOffset!=offset ){
    return -1;
  }
  got = read(id->h, pBuf, cnt);
#endif
  TIMER_END;
  OSTRACE5("READ    %-3d %5d %7lld %llu\n", id->h, got, offset, TIMER_ELAPSED);
  return got;
}

/*
** Read data from a file into a buffer.  Return SQLITE_OK if all
** bytes were read successfully and SQLITE_IOERR if anything goes
** wrong.

  newOffset = lseek(id->h, offset, SEEK_SET);
  if( newOffset!=offset ){
    return -1;
  }
  got = write(id->h, pBuf, cnt);
#endif
  TIMER_END;
  OSTRACE5("WRITE   %-3d %5d %7lld %llu\n", id->h, got, offset, TIMER_ELAPSED);
  return got;
}


/*
** Write data from a buffer into a file.  Return SQLITE_OK on success
** or some other error code on failure.

**
******************************************************************************
**
** This file contains the implementation of an SQLite vfs wrapper that
** adds instrumentation to all vfs and file methods. C and Tcl interfaces
** are provided to control the instrumentation.
**
** $Id: test_osinst.c,v 1.12 2008/05/29 20:22:37 shane Exp $
*/

/*
** C interface:
**
**   sqlite3_instvfs_create()
**   sqlite3_instvfs_destroy()

**       been created by an earlier invocation of [sqlite3_instvfs create].
**       After a callback script has been configured, it is invoked each
**       time a vfs or file method is called by SQLite. Before invoking
**       the callback script, five arguments are appended to it:
**
**         * The name of the invoked method - i.e. "xRead".
**
**         * The time consumed by the method call as measured by 
**           sqlite3Hwtime() (an integer value)
**
**         * A string value with a different meaning for different calls. 
**           For file methods, the name of the file being operated on. For
**           other methods it is the filename argument, if any.
**
**         * A 32-bit integer value with a call-specific meaning.
**

**       with vfs $NAME. The report format is a list with one element
**       for each method call (xWrite, xRead etc.). Each element is
**       itself a list with three elements:
**
**         * The name of the method call - i.e. "xWrite",
**         * The total number of calls to the method (an integer).
**         * The aggregate time consumed by all calls to the method as
**           measured by sqlite3Hwtime() (an integer).
*/

#include "sqlite3.h"
#include <string.h>
#include <assert.h>

/*

  instUnlock,                     /* xUnlock */
  instCheckReservedLock,          /* xCheckReservedLock */
  instFileControl,                /* xFileControl */
  instSectorSize,                 /* xSectorSize */
  instDeviceCharacteristics       /* xDeviceCharacteristics */
};

/* 
** hwtime.h contains inline assembler code for implementing 

** high-performance timing routines.

*/

#include "hwtime.h"









#define OS_TIME_IO(eEvent, A, B, Call) {     \
  inst_file *p = (inst_file *)pFile;         \
  InstVfs *pInstVfs = p->pInstVfs;           \
  int rc;                                    \
  sqlite_uint64 t = sqlite3Hwtime();         \
  rc = Call;                                 \
  t = sqlite3Hwtime() - t;                   \
  pInstVfs->aTime[eEvent] += t;              \
  pInstVfs->aCount[eEvent] += 1;             \
  if( pInstVfs->xCall ){                     \
    pInstVfs->xCall(                         \
      pInstVfs->pClient,eEvent,p->iFileId,t,rc,p->zName,p->flags,A,B  \
    );                                       \
  }                                          \
  return rc;                                 \
}

#define OS_TIME_VFS(eEvent, Z, flags, A, B, Call) {      \
  InstVfs *pInstVfs = (InstVfs *)pVfs;   \
  int rc;                                \
  sqlite_uint64 t = sqlite3Hwtime();     \
  rc = Call;                             \
  t = sqlite3Hwtime() - t;               \
  pInstVfs->aTime[eEvent] += t;          \
  pInstVfs->aCount[eEvent] += 1;         \
  if( pInstVfs->xCall ){                 \
    pInstVfs->xCall(pInstVfs->pClient,eEvent,0, t, rc, Z, flags, A, B); \
  }                                      \
  return rc;                             \
}

**
** Various scripts scan this source file in order to generate HTML
** documentation, headers files, or other derived files.  The formatting
** of the code in this file is, therefore, important.  See other comments
** in this file for details.  If in doubt, do not deviate from existing
** commenting and indentation practices when changing or adding code.
**
** $Id: vdbe.c,v 1.744 2008/05/29 20:22:37 shane Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include "vdbeInt.h"

/*
** The following global variable is incremented every time a cursor

#  define REGISTER_TRACE(R,M) if(p->trace&&R>0)registerTrace(p->trace,R,M)
#else
#  define REGISTER_TRACE(R,M)
#endif


#ifdef VDBE_PROFILE

/* 

** hwtime.h contains inline assembler code for implementing 
** high-performance timing routines.

*/
#include "hwtime.h"





#endif

/*
** The CHECK_FOR_INTERRUPT macro defined here looks to see if the
** sqlite3_interrupt() routine has been called.  If it has been, then
** processing of the VDBE program is interrupted.
**

  int rc = SQLITE_OK;        /* Value to return */
  sqlite3 *db = p->db;       /* The database */
  u8 encoding = ENC(db);     /* The database encoding */
  Mem *pIn1, *pIn2, *pIn3;   /* Input operands */
  Mem *pOut;                 /* Output operand */
  u8 opProperty;
#ifdef VDBE_PROFILE
  u64 start;                 /* CPU clock count at start of opcode */
  int origPc;                /* Program counter at start of opcode */
#endif
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
  int nProgressOps = 0;      /* Opcodes executed since progress callback. */
#endif

  assert( p->magic==VDBE_MAGIC_RUN );  /* sqlite3_step() verifies this */

  sqlite3FaultEndBenign(-1);
#endif
  for(pc=p->pc; rc==SQLITE_OK; pc++){
    assert( pc>=0 && pc<p->nOp );
    if( db->mallocFailed ) goto no_mem;
#ifdef VDBE_PROFILE
    origPc = pc;
    start = sqlite3Hwtime();
#endif
    pOp = &p->aOp[pc];

    /* Only allow tracing if SQLITE_DEBUG is defined.
    */
#ifdef SQLITE_DEBUG
    if( p->trace ){

** readability.  From this point on down, the normal indentation rules are
** restored.
*****************************************************************************/
    }

#ifdef VDBE_PROFILE
    {
      u64 elapsed = sqlite3Hwtime() - start;
      pOp->cycles += elapsed;
      pOp->cnt++;
#if 0
        fprintf(stdout, "%10llu ", elapsed);
        sqlite3VdbePrintOp(stdout, origPc, &p->aOp[origPc]);
#endif
    }
#endif

    /* The following code adds nothing to the actual functionality
    ** of the program.  It is only here for testing and debugging.

*************************************************************************
** Header file for the Virtual DataBase Engine (VDBE)
**
** This header defines the interface to the virtual database engine
** or VDBE.  The VDBE implements an abstract machine that runs a
** simple program to access and modify the underlying database.
**
** $Id: vdbe.h,v 1.132 2008/05/29 20:22:37 shane Exp $
*/
#ifndef _SQLITE_VDBE_H_
#define _SQLITE_VDBE_H_
#include <stdio.h>

/*
** A single VDBE is an opaque structure named "Vdbe".  Only routines

    VdbeFunc *pVdbeFunc;   /* Used when p4type is P4_VDBEFUNC */
    CollSeq *pColl;        /* Used when p4type is P4_COLLSEQ */
    Mem *pMem;             /* Used when p4type is P4_MEM */
    sqlite3_vtab *pVtab;   /* Used when p4type is P4_VTAB */
    KeyInfo *pKeyInfo;     /* Used when p4type is P4_KEYINFO */
  } p4;
#ifdef SQLITE_DEBUG
  char *zComment;          /* Comment to improve readability */
#endif
#ifdef VDBE_PROFILE
  int cnt;                 /* Number of times this instruction was executed */
  u64 cycles;              /* Total time spent executing this instruction */
#endif
};
typedef struct VdbeOp VdbeOp;

/*
** A smaller version of VdbeOp used for the VdbeAddOpList() function because
** it takes up less space.

foreach hdr {
   btree.h
   btreeInt.h
   fts3.h
   fts3_hash.h
   fts3_tokenizer.h
   hash.h
   hwtime.h
   keywordhash.h
   mutex.h
   opcodes.h
   os_common.h
   os.h
   os_os2.h
   pager.h

  }
  set declpattern ^$declpattern
  while {![eof $in]} {
    set line [gets $in]
    if {[regexp {^#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
      if {[info exists available_hdr($hdr)]} {
        if {$available_hdr($hdr)} {
          if {$hdr!="os_common.h" && $hdr!="hwtime.h"} {
            set available_hdr($hdr) 0
          }
          section_comment "Include $hdr in the middle of $tail"
          copy_file tsrc/$hdr
          section_comment "Continuing where we left off in $tail"
        }
      } elseif {![info exists seen_hdr($hdr)]} {

   os_os2.c
   os_unix.c
   os_win.c

   bitvec.c
   pager.c

   btmutex.c
   btree.c

   vdbefifo.c
   vdbemem.c
   vdbeaux.c
   vdbeapi.c
   vdbe.c

# files are seen in a #include statement in the C code, include the complete
# text of the file in-line.  The file only needs to be included once.
#
foreach hdr {
   btree.h
   btreeInt.h
   hash.h
   hwtime.h
   keywordhash.h
   opcodes.h
   os_common.h
   os.h
   os_os2.h
   pager.h
   parse.h

** will full optimizations.  For example:
**
**     gcc -c -O6 -DSQLITE_THREADSAFE=0 sqlite3.c
**
** Then link against this program.  But to do optimize this program
** because that defeats the hi-res timer.
**
**     gcc speedtest16.c sqlite3.o -ldl -I../src
**
** Then run this program with a single argument which is the name of
** a file containing SQL script that you want to test:
**
**     ./a.out database.db test.sql
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <unistd.h>
#include "sqlite3.h"


/* 


** hwtime.h contains inline assembler code for implementing 
** high-performance timing routines.

*/
#include "hwtime.h"






/*
** Convert a zero-terminated ASCII string into a zero-terminated
** UTF-16le string.  Memory to hold the returned string comes 
** from malloc() and should be freed by the caller.
*/
static void *asciiToUtf16le(const char *z){

  }
  return (void*)z16;
}

/*
** Timers
*/
static sqlite_uint64 prepTime = 0;
static sqlite_uint64 runTime = 0;
static sqlite_uint64 finalizeTime = 0;

/*
** Prepare and run a single statement of SQL.
*/
static void prepareAndRun(sqlite3 *db, const char *zSql){
  void *utf16;
  sqlite3_stmt *pStmt;
  const void *stmtTail;
  sqlite_uint64 iStart, iElapse;
  int rc;
  
  printf("****************************************************************\n");
  printf("SQL statement: [%s]\n", zSql);
  utf16 = asciiToUtf16le(zSql);
  iStart = sqlite3Hwtime();
  rc = sqlite3_prepare16_v2(db, utf16, -1, &pStmt, &stmtTail);
  iElapse = sqlite3Hwtime() - iStart;
  prepTime += iElapse;
  printf("sqlite3_prepare16_v2() returns %d in %llu cycles\n", rc, iElapse);
  if( rc==SQLITE_OK ){
    int nRow = 0;
    iStart = sqlite3Hwtime();
    while( (rc=sqlite3_step(pStmt))==SQLITE_ROW ){ nRow++; }
    iElapse = sqlite3Hwtime() - iStart;
    runTime += iElapse;
    printf("sqlite3_step() returns %d after %d rows in %llu cycles\n",
           rc, nRow, iElapse);
    iStart = sqlite3Hwtime();
    rc = sqlite3_finalize(pStmt);
    iElapse = sqlite3Hwtime() - iStart;
    finalizeTime += iElapse;
    printf("sqlite3_finalize() returns %d in %llu cycles\n", rc, iElapse);
  }
  free(utf16);
}

int main(int argc, char **argv){
  void *utf16;
  sqlite3 *db;
  int rc;
  int nSql;
  char *zSql;
  int i, j;
  FILE *in;
  sqlite_uint64 iStart, iElapse;
  sqlite_uint64 iSetup = 0;
  int nStmt = 0;
  int nByte = 0;

  if( argc!=3 ){
    fprintf(stderr, "Usage: %s FILENAME SQL-SCRIPT\n"
                    "Runs SQL-SCRIPT as UTF16 against a UTF16 database\n",
                    argv[0]);
    exit(1);
  }
  in = fopen(argv[2], "r");
  fseek(in, 0L, SEEK_END);
  nSql = ftell(in);
  zSql = malloc( nSql+1 );
  fseek(in, 0L, SEEK_SET);
  nSql = fread(zSql, 1, nSql, in);
  zSql[nSql] = 0;

  printf("SQLite version: %d\n", sqlite3_libversion_number());
  unlink(argv[1]);
  utf16 = asciiToUtf16le(argv[1]);
  iStart = sqlite3Hwtime();
  rc = sqlite3_open16(utf16, &db);
  iElapse = sqlite3Hwtime() - iStart;
  iSetup = iElapse;
  printf("sqlite3_open16() returns %d in %llu cycles\n", rc, iElapse);
  free(utf16);
  for(i=j=0; j<nSql; j++){
    if( zSql[j]==';' ){
      int isComplete;
      char c = zSql[j+1];

          prepareAndRun(db, &zSql[i]);
        }
        zSql[j] = ';';
        i = j+1;
      }
    }
  }
  iStart = sqlite3Hwtime();
  sqlite3_close(db);
  iElapse = sqlite3Hwtime() - iStart;
  iSetup += iElapse;
  printf("sqlite3_close() returns in %llu cycles\n", iElapse);
  printf("\n");
  printf("Statements run:       %15d\n", nStmt);
  printf("Bytes of SQL text:    %15d\n", nByte);
  printf("Total prepare time:   %15llu cycles\n", prepTime);
  printf("Total run time:       %15llu cycles\n", runTime);
  printf("Total finalize time:  %15llu cycles\n", finalizeTime);
  printf("Open/Close time:      %15llu cycles\n", iSetup);
  printf("Total Time:           %15llu cycles\n",
      prepTime + runTime + finalizeTime + iSetup);
  return 0;
}

** will full optimizations.  For example:
**
**     gcc -c -O6 -DSQLITE_THREADSAFE=0 sqlite3.c
**
** Then link against this program.  But to do optimize this program
** because that defeats the hi-res timer.
**
**     gcc speedtest8.c sqlite3.o -ldl -I../src
**
** Then run this program with a single argument which is the name of
** a file containing SQL script that you want to test:
**
**     ./a.out test.db  test.sql
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>

#if defined(_MSC_VER)
#include <windows.h>
#else
#include <unistd.h>
#include <sys/times.h>
#include <sched.h>
#endif

#include "sqlite3.h"

/* 
** hwtime.h contains inline assembler code for implementing 

** high-performance timing routines.

*/
#include "hwtime.h"






/*
** Timers
*/
static sqlite_uint64 prepTime = 0;
static sqlite_uint64 runTime = 0;
static sqlite_uint64 finalizeTime = 0;

/*
** Prepare and run a single statement of SQL.
*/
static void prepareAndRun(sqlite3 *db, const char *zSql, int bQuiet){
  sqlite3_stmt *pStmt;
  const char *stmtTail;
  sqlite_uint64 iStart, iElapse;
  int rc;
  
  if (!bQuiet){
    printf("***************************************************************\n");
  }
  if (!bQuiet) printf("SQL statement: [%s]\n", zSql);
  iStart = sqlite3Hwtime();
  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &stmtTail);
  iElapse = sqlite3Hwtime() - iStart;
  prepTime += iElapse;
  if (!bQuiet){
    printf("sqlite3_prepare_v2() returns %d in %llu cycles\n", rc, iElapse);
  }
  if( rc==SQLITE_OK ){
    int nRow = 0;
    iStart = sqlite3Hwtime();
    while( (rc=sqlite3_step(pStmt))==SQLITE_ROW ){ nRow++; }
    iElapse = sqlite3Hwtime() - iStart;
    runTime += iElapse;
    if (!bQuiet){
      printf("sqlite3_step() returns %d after %d rows in %llu cycles\n",
             rc, nRow, iElapse);
    }
    iStart = sqlite3Hwtime();
    rc = sqlite3_finalize(pStmt);
    iElapse = sqlite3Hwtime() - iStart;
    finalizeTime += iElapse;
    if (!bQuiet){
      printf("sqlite3_finalize() returns %d in %llu cycles\n", rc, iElapse);
    }
  }
}

int main(int argc, char **argv){
  sqlite3 *db;
  int rc;
  int nSql;
  char *zSql;
  int i, j;
  FILE *in;
  sqlite_uint64 iStart, iElapse;
  sqlite_uint64 iSetup = 0;
  int nStmt = 0;
  int nByte = 0;
  const char *zArgv0 = argv[0];
  int bQuiet = 0;
#if !defined(_MSC_VER)
  struct tms tmsStart, tmsEnd;
  clock_t clkStart, clkEnd;
#endif

#ifdef HAVE_OSINST
  extern sqlite3_vfs *sqlite3_instvfs_binarylog(char *, char *, char *);
  extern void sqlite3_instvfs_destroy(sqlite3_vfs *);
  sqlite3_vfs *pVfs = 0;
#endif

    /*
    ** Increasing the priority slightly above normal can help with
    ** repeatability of testing.  Note that with Cygwin, -5 equates
    ** to "High", +5 equates to "Low", and anything in between
    ** equates to "Normal".
    */
    if( argc>4 && (strcmp(argv[1], "-priority")==0) ){
#if defined(_MSC_VER)
      int new_priority = atoi(argv[2]);
      if(!SetPriorityClass(GetCurrentProcess(), 
        (new_priority<=-5) ? HIGH_PRIORITY_CLASS : 
        (new_priority<=0)  ? ABOVE_NORMAL_PRIORITY_CLASS : 
        (new_priority==0)  ? NORMAL_PRIORITY_CLASS : 
        (new_priority<5)   ? BELOW_NORMAL_PRIORITY_CLASS : 
        IDLE_PRIORITY_CLASS)){
        printf ("error setting priority\n"); 
        exit(2); 
      }
#else
      struct sched_param myParam;
      sched_getparam(0, &myParam);
      printf ("Current process priority is %d.\n", (int)myParam.sched_priority); 
      myParam.sched_priority = atoi(argv[2]);
      printf ("Setting process priority to %d.\n", (int)myParam.sched_priority); 
      if (sched_setparam (0, &myParam) != 0){
        printf ("error setting priority\n"); 
        exit(2); 
      }
#endif
      argv += 2;
      argc -= 2;
      continue;
    }

    if( argc>3 && strcmp(argv[1], "-quiet")==0 ){
     bQuiet = -1;

  zSql = malloc( nSql+1 );
  fseek(in, 0L, SEEK_SET);
  nSql = fread(zSql, 1, nSql, in);
  zSql[nSql] = 0;

  printf("SQLite version: %d\n", sqlite3_libversion_number());
  unlink(argv[1]);
#if !defined(_MSC_VER)
  clkStart = times(&tmsStart);
#endif
  iStart = sqlite3Hwtime();
  rc = sqlite3_open(argv[1], &db);
  iElapse = sqlite3Hwtime() - iStart;
  iSetup = iElapse;
  if (!bQuiet) printf("sqlite3_open() returns %d in %llu cycles\n", rc, iElapse);
  for(i=j=0; j<nSql; j++){
    if( zSql[j]==';' ){
      int isComplete;
      char c = zSql[j+1];
      zSql[j+1] = 0;

          prepareAndRun(db, &zSql[i], bQuiet);
        }
        zSql[j] = ';';
        i = j+1;
      }
    }
  }
  iStart = sqlite3Hwtime();
  sqlite3_close(db);
  iElapse = sqlite3Hwtime() - iStart;
#if !defined(_MSC_VER)
  clkEnd = times(&tmsEnd);
#endif
  iSetup += iElapse;
  if (!bQuiet) printf("sqlite3_close() returns in %llu cycles\n", iElapse);

  printf("\n");
  printf("Statements run:        %15d stmts\n", nStmt);
  printf("Bytes of SQL text:     %15d bytes\n", nByte);
  printf("Total prepare time:    %15llu cycles\n", prepTime);
  printf("Total run time:        %15llu cycles\n", runTime);
  printf("Total finalize time:   %15llu cycles\n", finalizeTime);
  printf("Open/Close time:       %15llu cycles\n", iSetup);
  printf("Total time:            %15llu cycles\n",
      prepTime + runTime + finalizeTime + iSetup);

#if !defined(_MSC_VER)
  printf("\n");
  printf("Total user CPU time:   %15.3g secs\n", (tmsEnd.tms_utime - tmsStart.tms_utime)/(double)CLOCKS_PER_SEC );
  printf("Total system CPU time: %15.3g secs\n", (tmsEnd.tms_stime - tmsStart.tms_stime)/(double)CLOCKS_PER_SEC );
  printf("Total real time:       %15.3g secs\n", (clkEnd -clkStart)/(double)CLOCKS_PER_SEC );
#endif

#ifdef HAVE_OSINST
  if( pVfs ){
    sqlite3_instvfs_destroy(pVfs);
    printf("vfs log written to %s\n", argv[0]);
  }
#endif

  return 0;
}

** will full optimizations.  For example:
**
**     gcc -c -O6 -DSQLITE_THREADSAFE=0 sqlite3.c
**
** Then link against this program.  But to do optimize this program
** because that defeats the hi-res timer.
**
**     gcc speedtest8.c sqlite3.o -ldl -I../src
**
** Then run this program with a single argument which is the name of
** a file containing SQL script that you want to test:
**
**     ./a.out test.db  test.sql
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <unistd.h>
#include <stdarg.h>
#include "sqlite3.h"

/* 
** hwtime.h contains inline assembler code for implementing 

** high-performance timing routines.

*/
#include "hwtime.h"






/*
** Send a message to the log file.
*/
static void logMessage(const char *zFormat, ...){
  va_list ap;
  va_start(ap, zFormat);

  instCheckReservedLock,          /* xCheckReservedLock */
  instFileControl,                /* xFileControl */
  instSectorSize,                 /* xSectorSize */
  instDeviceCharacteristics       /* xDeviceCharacteristics */
};

#define OS_TIME_IO(MESSAGE, A, B, CALL)      \
  int rc;                                    \
  sqlite_uint64 t1, t2;                      \
  inst_file *p = (inst_file*)pFile;          \
  t1 = sqlite3Hwtime();                      \
  rc = CALL;                                 \
  t2 = sqlite3Hwtime();                      \
  logMessage(MESSAGE, A, B, t2-t1);          \
  instTime += sqlite3Hwtime() - t2;          \
  return rc;

#define OS_TIME_VFS(MESSAGE, A, B, CALL)                 \
  int rc;                                                \
  sqlite_uint64 t1, t2;                                  \
  sqlite3_vfs *pRealVfs = (sqlite3_vfs*)pVfs->pAppData;  \
  t1 = sqlite3Hwtime();                                  \
  rc = CALL;                                             \
  t2 = sqlite3Hwtime();                                  \
  logMessage(MESSAGE, A, B, t2-t1);                      \
  instTime += sqlite3Hwtime() - t2;                      \
  return rc;


/*
** Close an inst-file.
*/
static int instClose(sqlite3_file *pFile){

/*
** Prepare and run a single statement of SQL.
*/
static void prepareAndRun(sqlite3 *db, const char *zSql){
  sqlite3_stmt *pStmt;
  const char *stmtTail;
  sqlite_uint64 iStart, iElapse;
  int rc;
  
  printf("****************************************************************\n");
  printf("SQL statement: [%s]\n", zSql);
  instTime = 0;
  iStart = sqlite3Hwtime();
  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &stmtTail);
  iElapse = sqlite3Hwtime();
  iElapse -= iStart + instTime;
  prepTime += iElapse;
  printf("sqlite3_prepare_v2() returns %d in %llu cycles\n", rc, iElapse);
  if( rc==SQLITE_OK ){
    int nRow = 0;
    instTime = 0;
    iStart = sqlite3Hwtime();
    while( (rc=sqlite3_step(pStmt))==SQLITE_ROW ){ nRow++; }
    iElapse = sqlite3Hwtime();
    iElapse -= iStart + instTime;
    runTime += iElapse;
    printf("sqlite3_step() returns %d after %d rows in %llu cycles\n",
           rc, nRow, iElapse);
    instTime = 0;
    iStart = sqlite3Hwtime();
    rc = sqlite3_finalize(pStmt);
    iElapse = sqlite3Hwtime();
    iElapse -= iStart + instTime;
    finalizeTime += iElapse;
    printf("sqlite3_finalize() returns %d in %llu cycles\n", rc, iElapse);
  }
}

int main(int argc, char **argv){
  sqlite3 *db;
  int rc;
  int nSql;
  char *zSql;
  int i, j;
  FILE *in;
  sqlite_uint64 iStart, iElapse;
  sqlite_uint64 iSetup = 0;
  int nStmt = 0;
  int nByte = 0;

  if( argc!=3 ){
    fprintf(stderr, "Usage: %s FILENAME SQL-SCRIPT\n"
                    "Runs SQL-SCRIPT against a UTF8 database\n",
                    argv[0]);

  nSql = fread(zSql, 1, nSql, in);
  zSql[nSql] = 0;

  printf("SQLite version: %d\n", sqlite3_libversion_number());
  unlink(argv[1]);
  setupInstrumentedVfs();
  instTime = 0;
  iStart = sqlite3Hwtime();
  rc = sqlite3_open(argv[1], &db);
  iElapse = sqlite3Hwtime();
  iElapse -= iStart + instTime;
  iSetup = iElapse;
  printf("sqlite3_open() returns %d in %llu cycles\n", rc, iElapse);
  for(i=j=0; j<nSql; j++){
    if( zSql[j]==';' ){
      int isComplete;
      char c = zSql[j+1];

        }
        zSql[j] = ';';
        i = j+1;
      }
    }
  }
  instTime = 0;
  iStart = sqlite3Hwtime();
  sqlite3_close(db);
  iElapse = sqlite3Hwtime();
  iElapse -= iStart + instTime;
  iSetup += iElapse;
  printf("sqlite3_close() returns in %llu cycles\n", iElapse);
  printf("\n");
  printf("Statements run:       %15d\n", nStmt);
  printf("Bytes of SQL text:    %15d\n", nByte);
  printf("Total prepare time:   %15llu cycles\n", prepTime);