sqlite3BtreeEnter(p);
  assert( pBt && pBt->pPager );
  rc = sqlite3PagerNosync(pBt->pPager);
  sqlite3BtreeLeave(p);
  return rc;
}

#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) || !defined(SQLITE_OMIT_VACUUM)
/*
** Change the default pages size and the number of reserved bytes per page.
** Or, if the page size has already been fixed, return SQLITE_READONLY 
** without changing anything.
**
** The page size must be a power of 2 between 512 and 65536.  If the page
** size supplied does not meet this constraint then the page size is not
................................................................................
/*
** Return the currently defined page size
*/
int sqlite3BtreeGetPageSize(Btree *p){
  return p->pBt->pageSize;
}


/*
** Return the number of bytes of space at the end of every page that
** are intentually left unused.  This is the "reserved" space that is
** sometimes used by extensions.
*/
int sqlite3BtreeGetReserve(Btree *p){
  int n;

  sqlite3BtreeEnter(p);
  assert( pBt && pBt->pPager );
  rc = sqlite3PagerNosync(pBt->pPager);
  sqlite3BtreeLeave(p);
  return rc;
}


/*
** Change the default pages size and the number of reserved bytes per page.
** Or, if the page size has already been fixed, return SQLITE_READONLY 
** without changing anything.
**
** The page size must be a power of 2 between 512 and 65536.  If the page
** size supplied does not meet this constraint then the page size is not
................................................................................
/*
** Return the currently defined page size
*/
int sqlite3BtreeGetPageSize(Btree *p){
  return p->pBt->pageSize;
}

#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) || !defined(SQLITE_OMIT_VACUUM)
/*
** Return the number of bytes of space at the end of every page that
** are intentually left unused.  This is the "reserved" space that is
** sometimes used by extensions.
*/
int sqlite3BtreeGetReserve(Btree *p){
  int n;

# define sqlite3_column_origin_name16   0
#endif

#ifdef SQLITE_OMIT_COMPLETE
# define sqlite3_complete 0
# define sqlite3_complete16 0
#endif






#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
# define sqlite3_progress_handler 0
#endif

#ifdef SQLITE_OMIT_VIRTUALTABLE
# define sqlite3_create_module 0

# define sqlite3_column_origin_name16   0
#endif

#ifdef SQLITE_OMIT_COMPLETE
# define sqlite3_complete 0
# define sqlite3_complete16 0
#endif

#ifdef SQLITE_OMIT_DECLTYPE
# define sqlite3_column_decltype16      0
# define sqlite3_column_decltype        0
#endif

#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
# define sqlite3_progress_handler 0
#endif

#ifdef SQLITE_OMIT_VIRTUALTABLE
# define sqlite3_create_module 0

  if( pParse->explain==2 ){
    Vdbe *v = pParse->pVdbe;
    char *zMsg = sqlite3MPrintf(pParse->db, "USE TEMP B-TREE FOR %s", zUsage);
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
}

















/*
** Unless an "EXPLAIN QUERY PLAN" command is being processed, this function
** is a no-op. Otherwise, it adds a single row of output to the EQP result,
** where the caption is of one of the two forms:
**
**   "COMPOSITE SUBQUERIES iSub1 and iSub2 (op)"
**   "COMPOSITE SUBQUERIES iSub1 and iSub2 USING TEMP B-TREE (op)"
................................................................................
    char *zMsg = sqlite3MPrintf(
        pParse->db, "COMPOUND SUBQUERIES %d AND %d %s(%s)", iSub1, iSub2,
        bUseTmp?"USING TEMP B-TREE ":"", selectOpName(op)
    );
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
}

/*
** Assign expression b to lvalue a. A second, no-op, version of this macro
** is provided when SQLITE_OMIT_EXPLAIN is defined. This allows the code
** in sqlite3Select() to assign values to structure member variables that
** only exist if SQLITE_OMIT_EXPLAIN is not defined without polluting the
** code with #ifndef directives.
*/
# define explainSetInteger(a, b) a = b

#else
/* No-op versions of the explainXXX() functions and macros. */
# define explainTempTable(y,z)
# define explainComposite(v,w,x,y,z)
# define explainSetInteger(y,z)
#endif

/*
** If the inner loop was generated using a non-null pOrderBy argument,
** then the results were placed in a sorter.  After the loop is terminated
** we need to run the sorter and output the results.  The following
** routine generates the code needed to do that.

  if( pParse->explain==2 ){
    Vdbe *v = pParse->pVdbe;
    char *zMsg = sqlite3MPrintf(pParse->db, "USE TEMP B-TREE FOR %s", zUsage);
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
}

/*
** Assign expression b to lvalue a. A second, no-op, version of this macro
** is provided when SQLITE_OMIT_EXPLAIN is defined. This allows the code
** in sqlite3Select() to assign values to structure member variables that
** only exist if SQLITE_OMIT_EXPLAIN is not defined without polluting the
** code with #ifndef directives.
*/
# define explainSetInteger(a, b) a = b

#else
/* No-op versions of the explainXXX() functions and macros. */
# define explainTempTable(y,z)
# define explainSetInteger(y,z)
#endif

#if !defined(SQLITE_OMIT_EXPLAIN) && !defined(SQLITE_OMIT_COMPOUND_SELECT)
/*
** Unless an "EXPLAIN QUERY PLAN" command is being processed, this function
** is a no-op. Otherwise, it adds a single row of output to the EQP result,
** where the caption is of one of the two forms:
**
**   "COMPOSITE SUBQUERIES iSub1 and iSub2 (op)"
**   "COMPOSITE SUBQUERIES iSub1 and iSub2 USING TEMP B-TREE (op)"
................................................................................
    char *zMsg = sqlite3MPrintf(
        pParse->db, "COMPOUND SUBQUERIES %d AND %d %s(%s)", iSub1, iSub2,
        bUseTmp?"USING TEMP B-TREE ":"", selectOpName(op)
    );
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
}










#else
/* No-op versions of the explainXXX() functions and macros. */

# define explainComposite(v,w,x,y,z)

#endif

/*
** If the inner loop was generated using a non-null pOrderBy argument,
** then the results were placed in a sorter.  After the loop is terminated
** we need to run the sorter and output the results.  The following
** routine generates the code needed to do that.

    /* Signal the client that the message has been processed.
    */
    pMsg->op = MSG_Done;
    pthread_mutex_unlock(&pMsg->clientMutex);
    pthread_cond_signal(&pMsg->clientWakeup);
  }
  sqlite3_thread_cleanup();
  pthread_mutex_unlock(&g.serverMutex);
  return 0;
}

/*
** Start a server thread if one is not already running.  If there
** is aleady a server thread running, the new thread will quickly

    /* Signal the client that the message has been processed.
    */
    pMsg->op = MSG_Done;
    pthread_mutex_unlock(&pMsg->clientMutex);
    pthread_cond_signal(&pMsg->clientWakeup);
  }

  pthread_mutex_unlock(&g.serverMutex);
  return 0;
}

/*
** Start a server thread if one is not already running.  If there
** is aleady a server thread running, the new thread will quickly

# Documentation for this script. This may be output to stderr
# if the script is invoked incorrectly.
set ::USAGE_MESSAGE {
This Tcl script is used to test the various compile time options 
available for omitting code (the SQLITE_OMIT_xxx options). It
should be invoked as follows:

    <script> ?-makefile PATH-TO-MAKEFILE? ?-skip_run?

The default value for ::MAKEFILE is "../Makefile.linux.gcc".

If -skip_run option is given then only the compile part is attempted.

This script builds the testfixture program and runs the SQLite test suite
once with each SQLITE_OMIT_ option defined and then once with all options
................................................................................
# This proc processes the command line options passed to this script.
# Currently the only option supported is "-makefile", default
# "../Makefile.linux-gcc". Set the ::MAKEFILE variable to the value of this
# option.
#
proc process_options {argv} {
  if {$::tcl_platform(platform)=="windows" || $::tcl_platform(platform)=="os2"} {
      set ::MAKEFILE ./Makefile                         ;# Default value
  } else {
      set ::MAKEFILE ./Makefile.linux-gcc               ;# Default value
  }
  set ::SKIP_RUN 0                                      ;# Default to attempt test

  for {set i 0} {$i < [llength $argv]} {incr i} {
    switch -- [lindex $argv $i] {
      -makefile {
        incr i
        set ::MAKEFILE [lindex $argv $i]
      }
  
      -skip_run {
        incr i
        set ::SKIP_RUN 1
      }

      default {

        puts stderr [string trim $::USAGE_MESSAGE]
        exit -1


      }
    }
    set ::MAKEFILE [file normalize $::MAKEFILE]
  }
}

# Main routine.
................................................................................
    SQLITE_ENABLE_UNLOCK_NOTIFY \
    SQLITE_ENABLE_UPDATE_DELETE_LIMIT \
  ]

  # Process any command line options.
  process_options $argv












  # First try a test with all OMIT symbols except SQLITE_OMIT_FLOATING_POINT 
  # and SQLITE_OMIT_PRAGMA defined. The former doesn't work (causes segfaults)
  # and the latter is currently incompatible with the test suite (this should
  # be fixed, but it will be a lot of work).
  set allsyms [list]
  foreach s $::OMIT_SYMBOLS {
    if {$s!="SQLITE_OMIT_FLOATING_POINT" && $s!="SQLITE_OMIT_PRAGMA"} {
      lappend allsyms $s
    }
  }
  run_quick_test test_OMIT_EVERYTHING $allsyms

  # Now try one quick.test with each of the OMIT symbols defined. Included
  # are the OMIT_FLOATING_POINT and OMIT_PRAGMA symbols, even though we
  # know they will fail. It's good to be reminded of this from time to time.
  foreach sym $::OMIT_SYMBOLS {
    set dirname "test_[string range $sym 7 end]"
    run_quick_test $dirname $sym
  }

  # Try the ENABLE/DISABLE symbols one at a time.  
  # We don't do them all at once since some are conflicting.
  foreach sym $::ENABLE_SYMBOLS {
    set dirname "test_[string range $sym 7 end]"
    run_quick_test $dirname $sym
  }
}


main $argv

# Documentation for this script. This may be output to stderr
# if the script is invoked incorrectly.
set ::USAGE_MESSAGE {
This Tcl script is used to test the various compile time options 
available for omitting code (the SQLITE_OMIT_xxx options). It
should be invoked as follows:

    <script> ?test-symbol? ?-makefile PATH-TO-MAKEFILE? ?-skip_run?

The default value for ::MAKEFILE is "../Makefile.linux.gcc".

If -skip_run option is given then only the compile part is attempted.

This script builds the testfixture program and runs the SQLite test suite
once with each SQLITE_OMIT_ option defined and then once with all options
................................................................................
# This proc processes the command line options passed to this script.
# Currently the only option supported is "-makefile", default
# "../Makefile.linux-gcc". Set the ::MAKEFILE variable to the value of this
# option.
#
proc process_options {argv} {
  if {$::tcl_platform(platform)=="windows" || $::tcl_platform(platform)=="os2"} {
    set ::MAKEFILE ./Makefile               ;# Default value
  } else {
    set ::MAKEFILE ./Makefile.linux-gcc     ;# Default value
  }
  set ::SKIP_RUN 0                          ;# Default to attempt test

  for {set i 0} {$i < [llength $argv]} {incr i} {
    switch -- [lindex $argv $i] {
      -makefile {
        incr i
        set ::MAKEFILE [lindex $argv $i]
      }
  
      -skip_run {

        set ::SKIP_RUN 1
      }

      default {
        if {[info exists ::SYMBOL]} {
          puts stderr [string trim $::USAGE_MESSAGE]
          exit -1
        }
        set ::SYMBOL [lindex $argv $i]
      }
    }
    set ::MAKEFILE [file normalize $::MAKEFILE]
  }
}

# Main routine.
................................................................................
    SQLITE_ENABLE_UNLOCK_NOTIFY \
    SQLITE_ENABLE_UPDATE_DELETE_LIMIT \
  ]

  # Process any command line options.
  process_options $argv

  if {[info exists ::SYMBOL] } {
    set sym $::SYMBOL

    if {[lsearch $::OMIT_SYMBOLS $sym]<0 && [lsearch $::ENABLE_SYMBOLS $sym]<0} {
      puts stderr "No such symbol: $sym"
      exit -1
    }

    set dirname "test_[string range $sym 7 end]"
    run_quick_test $dirname $sym
  } else {
    # First try a test with all OMIT symbols except SQLITE_OMIT_FLOATING_POINT 
    # and SQLITE_OMIT_PRAGMA defined. The former doesn't work (causes segfaults)
    # and the latter is currently incompatible with the test suite (this should
    # be fixed, but it will be a lot of work).
    set allsyms [list]
    foreach s $::OMIT_SYMBOLS {
      if {$s!="SQLITE_OMIT_FLOATING_POINT" && $s!="SQLITE_OMIT_PRAGMA"} {
        lappend allsyms $s
      }
    }
    run_quick_test test_OMIT_EVERYTHING $allsyms
  
    # Now try one quick.test with each of the OMIT symbols defined. Included
    # are the OMIT_FLOATING_POINT and OMIT_PRAGMA symbols, even though we
    # know they will fail. It's good to be reminded of this from time to time.
    foreach sym $::OMIT_SYMBOLS {
      set dirname "test_[string range $sym 7 end]"
      run_quick_test $dirname $sym
    }
  
    # Try the ENABLE/DISABLE symbols one at a time.  
    # We don't do them all at once since some are conflicting.
    foreach sym $::ENABLE_SYMBOLS {
      set dirname "test_[string range $sym 7 end]"
      run_quick_test $dirname $sym
    }
  }
}

main $argv