pool_config.c

#line 3 "pool_config.c"

#define  YY_INT_ALIGNED short int

/* A lexical scanner generated by flex */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 35
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

/* First, we deal with  platform-specific or compiler-specific issues. */

/* begin standard C headers. */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>

/* end standard C headers. */

/* flex integer type definitions */

#ifndef FLEXINT_H
#define FLEXINT_H

/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */

#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L

/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
 * if you want the limit (max/min) macros for int types. 
 */
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS 1
#endif

#include <inttypes.h>
typedef int8_t flex_int8_t;
typedef uint8_t flex_uint8_t;
typedef int16_t flex_int16_t;
typedef uint16_t flex_uint16_t;
typedef int32_t flex_int32_t;
typedef uint32_t flex_uint32_t;
#else
typedef signed char flex_int8_t;
typedef short int flex_int16_t;
typedef int flex_int32_t;
typedef unsigned char flex_uint8_t; 
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;
#endif /* ! C99 */

/* Limits of integral types. */
#ifndef INT8_MIN
#define INT8_MIN               (-128)
#endif
#ifndef INT16_MIN
#define INT16_MIN              (-32767-1)
#endif
#ifndef INT32_MIN
#define INT32_MIN              (-2147483647-1)
#endif
#ifndef INT8_MAX
#define INT8_MAX               (127)
#endif
#ifndef INT16_MAX
#define INT16_MAX              (32767)
#endif
#ifndef INT32_MAX
#define INT32_MAX              (2147483647)
#endif
#ifndef UINT8_MAX
#define UINT8_MAX              (255U)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX             (65535U)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX             (4294967295U)
#endif

#endif /* ! FLEXINT_H */

#ifdef __cplusplus

/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST

#else	/* ! __cplusplus */

/* C99 requires __STDC__ to be defined as 1. */
#if defined (__STDC__)

#define YY_USE_CONST

#endif	/* defined (__STDC__) */
#endif	/* ! __cplusplus */

#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif

/* Returned upon end-of-file. */
#define YY_NULL 0

/* Promotes a possibly negative, possibly signed char to an unsigned
 * integer for use as an array index.  If the signed char is negative,
 * we want to instead treat it as an 8-bit unsigned char, hence the
 * double cast.
 */
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)

/* Enter a start condition.  This macro really ought to take a parameter,
 * but we do it the disgusting crufty way forced on us by the ()-less
 * definition of BEGIN.
 */
#define BEGIN (yy_start) = 1 + 2 *

/* Translate the current start state into a value that can be later handed
 * to BEGIN to return to the state.  The YYSTATE alias is for lex
 * compatibility.
 */
#define YY_START (((yy_start) - 1) / 2)
#define YYSTATE YY_START

/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)

/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE yyrestart(yyin  )

#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#define YY_BUF_SIZE 16384
#endif

/* The state buf must be large enough to hold one state per character in the main buffer.
 */
#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))

#ifndef YY_TYPEDEF_YY_BUFFER_STATE
#define YY_TYPEDEF_YY_BUFFER_STATE
typedef struct yy_buffer_state *YY_BUFFER_STATE;
#endif

extern int yyleng;

extern FILE *yyin, *yyout;

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2

    #define YY_LESS_LINENO(n)
    
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
		*yy_cp = (yy_hold_char); \
		YY_RESTORE_YY_MORE_OFFSET \
		(yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
		} \
	while ( 0 )

#define unput(c) yyunput( c, (yytext_ptr)  )

#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif

#ifndef YY_STRUCT_YY_BUFFER_STATE
#define YY_STRUCT_YY_BUFFER_STATE
struct yy_buffer_state
	{
	FILE *yy_input_file;

	char *yy_ch_buf;		/* input buffer */
	char *yy_buf_pos;		/* current position in input buffer */

	/* Size of input buffer in bytes, not including room for EOB
	 * characters.
	 */
	yy_size_t yy_buf_size;

	/* Number of characters read into yy_ch_buf, not including EOB
	 * characters.
	 */
	int yy_n_chars;

	/* Whether we "own" the buffer - i.e., we know we created it,
	 * and can realloc() it to grow it, and should free() it to
	 * delete it.
	 */
	int yy_is_our_buffer;

	/* Whether this is an "interactive" input source; if so, and
	 * if we're using stdio for input, then we want to use getc()
	 * instead of fread(), to make sure we stop fetching input after
	 * each newline.
	 */
	int yy_is_interactive;

	/* Whether we're considered to be at the beginning of a line.
	 * If so, '^' rules will be active on the next match, otherwise
	 * not.
	 */
	int yy_at_bol;

    int yy_bs_lineno; /**< The line count. */
    int yy_bs_column; /**< The column count. */
    
	/* Whether to try to fill the input buffer when we reach the
	 * end of it.
	 */
	int yy_fill_buffer;

	int yy_buffer_status;

#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
	/* When an EOF's been seen but there's still some text to process
	 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
	 * shouldn't try reading from the input source any more.  We might
	 * still have a bunch of tokens to match, though, because of
	 * possible backing-up.
	 *
	 * When we actually see the EOF, we change the status to "new"
	 * (via yyrestart()), so that the user can continue scanning by
	 * just pointing yyin at a new input file.
	 */
#define YY_BUFFER_EOF_PENDING 2

	};
#endif /* !YY_STRUCT_YY_BUFFER_STATE */

/* Stack of input buffers. */
static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */

/* We provide macros for accessing buffer states in case in the
 * future we want to put the buffer states in a more general
 * "scanner state".
 *
 * Returns the top of the stack, or NULL.
 */
#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
                          : NULL)

/* Same as previous macro, but useful when we know that the buffer stack is not
 * NULL or when we need an lvalue. For internal use only.
 */
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]

/* yy_hold_char holds the character lost when yytext is formed. */
static char yy_hold_char;
static int yy_n_chars;		/* number of characters read into yy_ch_buf */
int yyleng;

/* Points to current character in buffer. */
static char *yy_c_buf_p = (char *) 0;
static int yy_init = 0;		/* whether we need to initialize */
static int yy_start = 0;	/* start state number */

/* Flag which is used to allow yywrap()'s to do buffer switches
 * instead of setting up a fresh yyin.  A bit of a hack ...
 */
static int yy_did_buffer_switch_on_eof;

void yyrestart (FILE *input_file  );
void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
YY_BUFFER_STATE yy_create_buffer (FILE *file,int size  );
void yy_delete_buffer (YY_BUFFER_STATE b  );
void yy_flush_buffer (YY_BUFFER_STATE b  );
void yypush_buffer_state (YY_BUFFER_STATE new_buffer  );
void yypop_buffer_state (void );

static void yyensure_buffer_stack (void );
static void yy_load_buffer_state (void );
static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file  );

#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER )

YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size  );
YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str  );
YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len  );

void *yyalloc (yy_size_t  );
void *yyrealloc (void *,yy_size_t  );
void yyfree (void *  );

#define yy_new_buffer yy_create_buffer

#define yy_set_interactive(is_interactive) \
	{ \
	if ( ! YY_CURRENT_BUFFER ){ \
        yyensure_buffer_stack (); \
		YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer(yyin,YY_BUF_SIZE ); \
	} \
	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
	}

#define yy_set_bol(at_bol) \
	{ \
	if ( ! YY_CURRENT_BUFFER ){\
        yyensure_buffer_stack (); \
		YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer(yyin,YY_BUF_SIZE ); \
	} \
	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
	}

#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

/* Begin user sect3 */

#define yywrap(n) 1
#define YY_SKIP_YYWRAP

typedef unsigned char YY_CHAR;

FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;

typedef int yy_state_type;

extern int yylineno;

int yylineno = 1;

extern char *yytext;
#define yytext_ptr yytext

static yy_state_type yy_get_previous_state (void );
static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
static int yy_get_next_buffer (void );
static void yy_fatal_error (yyconst char msg[]  );

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up yytext.
 */
#define YY_DO_BEFORE_ACTION \
	(yytext_ptr) = yy_bp; \
	yyleng = (size_t) (yy_cp - yy_bp); \
	(yy_hold_char) = *yy_cp; \
	*yy_cp = '\0'; \
	(yy_c_buf_p) = yy_cp;

#define YY_NUM_RULES 11
#define YY_END_OF_BUFFER 12
/* This struct is not used in this scanner,
   but its presence is necessary. */
struct yy_trans_info
	{
	flex_int32_t yy_verify;
	flex_int32_t yy_nxt;
	};
static yyconst flex_int16_t yy_accept[38] =
    {   0,
        0,    0,   12,   10,    2,    1,   10,   10,   10,    8,
        7,    7,    9,    4,    2,    0,    3,    0,    5,    0,
        8,    7,    7,    8,    0,    0,    6,    4,    4,    0,
        5,    0,    0,    8,    7,    6,    0
    } ;

static yyconst flex_int32_t yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    1,    2,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    1,    1,    4,    1,    1,    1,    5,    1,
        1,    1,    6,    1,    7,    8,    9,   10,   11,   11,
       11,   11,   11,   11,   11,   11,   11,    9,    1,    1,
       12,    1,    1,    1,   13,   13,   13,   13,   14,   13,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
        1,   16,    1,    1,   17,    1,   13,   13,   13,   13,

       14,   13,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   18,
       15,   15,    1,    1,    1,    1,    1,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,

       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15
    } ;

static yyconst flex_int32_t yy_meta[19] =
    {   0,
        1,    1,    2,    1,    1,    1,    3,    3,    3,    4,
        4,    1,    5,    4,    3,    1,    3,    3
    } ;

static yyconst flex_int16_t yy_base[45] =
    {   0,
        0,    0,   61,   86,   58,   86,   55,   14,   23,   43,
       10,   46,   86,   28,   47,   40,   86,   16,   86,   22,
       28,    0,    0,    0,   40,    0,   24,   45,    0,   24,
       39,   43,   12,   14,    0,   22,   86,   62,   67,   22,
       70,   75,   77,   80
    } ;

static yyconst flex_int16_t yy_def[45] =
    {   0,
       37,    1,   37,   37,   37,   37,   38,   39,   37,   40,
        9,    9,   37,   41,   37,   38,   37,   39,   37,   42,
       40,   11,   12,   21,   37,   43,   44,   41,   28,   39,
       39,   42,   37,   37,   43,   44,    0,   37,   37,   37,
       37,   37,   37,   37
    } ;

static yyconst flex_int16_t yy_nxt[105] =
    {   0,
        4,    5,    6,    7,    8,    9,    9,   10,    4,   11,
       12,   13,   14,   14,   14,    4,   14,   14,   19,   23,
       19,   34,   34,   34,   34,   24,   31,   26,   19,   20,
       21,   20,   22,   23,   27,   27,   27,   32,   36,   20,
       36,   25,   17,   19,   29,   33,   33,   31,   15,   34,
       34,   27,   27,   27,   20,   23,   25,   17,   32,   15,
       37,   29,   16,   16,   16,   16,   16,   18,   37,   18,
       18,   18,   28,   28,   28,   30,   37,   30,   30,   30,
       35,   35,   27,   27,   27,    3,   37,   37,   37,   37,
       37,   37,   37,   37,   37,   37,   37,   37,   37,   37,

       37,   37,   37,   37
    } ;

static yyconst flex_int16_t yy_chk[105] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    8,   11,
       18,   33,   33,   34,   34,   40,   20,   11,   30,    8,
        9,   18,    9,    9,   14,   14,   14,   20,   36,   30,
       27,   21,   16,   31,   14,   25,   25,   32,   15,   25,
       25,   28,   28,   28,   31,   12,   10,    7,   32,    5,
        3,   28,   38,   38,   38,   38,   38,   39,    0,   39,
       39,   39,   41,   41,   41,   42,    0,   42,   42,   42,
       43,   43,   44,   44,   44,   37,   37,   37,   37,   37,
       37,   37,   37,   37,   37,   37,   37,   37,   37,   37,

       37,   37,   37,   37
    } ;

static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;

extern int yy_flex_debug;
int yy_flex_debug = 0;

/* The intent behind this definition is that it'll catch
 * any uses of REJECT which flex missed.
 */
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yytext;
#line 1 "pool_config.l"
/* -*-pgsql-c-*- */
/*
 *
 * $Header: /cvsroot/pgpool/pgpool-II/pool_config.c,v 1.32 2009/12/06 08:46:34 t-ishii Exp $
 *
 * pgpool: a language independent connection pool server for PostgreSQL 
 * written by Tatsuo Ishii
 *
 * Copyright (c) 2003-2009	PgPool Global Development Group
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose and without fee is hereby
 * granted, provided that the above copyright notice appear in all
 * copies and that both that copyright notice and this permission
 * notice appear in supporting documentation, and that the name of the
 * author not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior
 * permission. The author makes no representations about the
 * suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * pool_config.l: read configuration file
 *
 */
#line 27 "pool_config.l"

#include "pool.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define CHECK_CONTEXT(mask, context) ((mask) & (context))

/* to shut off compiler warnings */
int yylex(void);

POOL_CONFIG *pool_config;	/* configuration values */
POOL_SYSTEMDB_CONNECTION_POOL *system_db_info;
static unsigned Lineno;
static char *default_reset_query_list[] = {"ABORT", "DISCARD ALL"};

typedef enum {
  POOL_KEY = 1,
  POOL_INTEGER,
  POOL_REAL,
  POOL_STRING,
  POOL_UNQUOTED_STRING,
  POOL_EQUALS,
  POOL_EOL,
  POOL_PARSE_ERROR
} POOL_TOKEN;

static char *extract_string(char *value, POOL_TOKEN token);
static char **extract_string_tokens(char *str, char *delim, int *n);
static int eval_logical(char *str);
static void clear_host_entry(int slot);

#line 544 "pool_config.c"

#define INITIAL 0

#ifndef YY_NO_UNISTD_H
/* Special case for "unistd.h", since it is non-ANSI. We include it way
 * down here because we want the user's section 1 to have been scanned first.
 * The user has a chance to override it with an option.
 */
#include <unistd.h>
#endif

#ifndef YY_EXTRA_TYPE
#define YY_EXTRA_TYPE void *
#endif

static int yy_init_globals (void );

/* Accessor methods to globals.
   These are made visible to non-reentrant scanners for convenience. */

int yylex_destroy (void );

int yyget_debug (void );

void yyset_debug (int debug_flag  );

YY_EXTRA_TYPE yyget_extra (void );

void yyset_extra (YY_EXTRA_TYPE user_defined  );

FILE *yyget_in (void );

void yyset_in  (FILE * in_str  );

FILE *yyget_out (void );

void yyset_out  (FILE * out_str  );

int yyget_leng (void );

char *yyget_text (void );

int yyget_lineno (void );

void yyset_lineno (int line_number  );

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap (void );
#else
extern int yywrap (void );
#endif
#endif

#ifndef yytext_ptr
static void yy_flex_strncpy (char *,yyconst char *,int );
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * );
#endif

#ifndef YY_NO_INPUT

#ifdef __cplusplus
static int yyinput (void );
#else
static int input (void );
#endif

#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO fwrite( yytext, yyleng, 1, yyout )
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
		{ \
		int c = '*'; \
		int n; \
		for ( n = 0; n < max_size && \
			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
			buf[n] = (char) c; \
		if ( c == '\n' ) \
			buf[n++] = (char) c; \
		if ( c == EOF && ferror( yyin ) ) \
			YY_FATAL_ERROR( "input in flex scanner failed" ); \
		result = n; \
		} \
	else \
		{ \
		errno=0; \
		while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
			{ \
			if( errno != EINTR) \
				{ \
				YY_FATAL_ERROR( "input in flex scanner failed" ); \
				break; \
				} \
			errno=0; \
			clearerr(yyin); \
			} \
		}\
\

#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif

/* end tables serialization structures and prototypes */

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL_IS_OURS 1

extern int yylex (void);

#define YY_DECL int yylex (void)
#endif /* !YY_DECL */

/* Code executed at the beginning of each rule, after yytext and yyleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif

#define YY_RULE_SETUP \
	YY_USER_ACTION

/** The main scanner function which does all the work.
 */
YY_DECL
{
	register yy_state_type yy_current_state;
	register char *yy_cp, *yy_bp;
	register int yy_act;
    
#line 84 "pool_config.l"


#line 727 "pool_config.c"

	if ( !(yy_init) )
		{
		(yy_init) = 1;

#ifdef YY_USER_INIT
		YY_USER_INIT;
#endif

		if ( ! (yy_start) )
			(yy_start) = 1;	/* first start state */

		if ( ! yyin )
			yyin = stdin;

		if ( ! yyout )
			yyout = stdout;

		if ( ! YY_CURRENT_BUFFER ) {
			yyensure_buffer_stack ();
			YY_CURRENT_BUFFER_LVALUE =
				yy_create_buffer(yyin,YY_BUF_SIZE );
		}

		yy_load_buffer_state( );
		}

	while ( 1 )		/* loops until end-of-file is reached */
		{
		yy_cp = (yy_c_buf_p);

		/* Support of yytext. */
		*yy_cp = (yy_hold_char);

		/* yy_bp points to the position in yy_ch_buf of the start of
		 * the current run.
		 */
		yy_bp = yy_cp;

		yy_current_state = (yy_start);
yy_match:
		do
			{
			register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
			if ( yy_accept[yy_current_state] )
				{
				(yy_last_accepting_state) = yy_current_state;
				(yy_last_accepting_cpos) = yy_cp;
				}
			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
				{
				yy_current_state = (int) yy_def[yy_current_state];
				if ( yy_current_state >= 38 )
					yy_c = yy_meta[(unsigned int) yy_c];
				}
			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
			++yy_cp;
			}
		while ( yy_current_state != 37 );
		yy_cp = (yy_last_accepting_cpos);
		yy_current_state = (yy_last_accepting_state);

yy_find_action:
		yy_act = yy_accept[yy_current_state];

		YY_DO_BEFORE_ACTION;

do_action:	/* This label is used only to access EOF actions. */

		switch ( yy_act )
	{ /* beginning of action switch */
			case 0: /* must back up */
			/* undo the effects of YY_DO_BEFORE_ACTION */
			*yy_cp = (yy_hold_char);
			yy_cp = (yy_last_accepting_cpos);
			yy_current_state = (yy_last_accepting_state);
			goto yy_find_action;

case 1:
/* rule 1 can match eol */
YY_RULE_SETUP
#line 86 "pool_config.l"
Lineno++; return POOL_EOL;
	YY_BREAK
case 2:
YY_RULE_SETUP
#line 87 "pool_config.l"
/* eat whitespace */
	YY_BREAK
case 3:
*yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
(yy_c_buf_p) = yy_cp -= 1;
YY_DO_BEFORE_ACTION; /* set up yytext again */
YY_RULE_SETUP
#line 88 "pool_config.l"
/* eat comment */
	YY_BREAK
case 4:
YY_RULE_SETUP
#line 90 "pool_config.l"
return POOL_KEY;
	YY_BREAK
case 5:
YY_RULE_SETUP
#line 91 "pool_config.l"
return POOL_STRING;
	YY_BREAK
case 6:
YY_RULE_SETUP
#line 92 "pool_config.l"
return POOL_UNQUOTED_STRING;
	YY_BREAK
case 7:
YY_RULE_SETUP
#line 93 "pool_config.l"
return POOL_INTEGER;
	YY_BREAK
case 8:
YY_RULE_SETUP
#line 94 "pool_config.l"
return POOL_REAL;
	YY_BREAK
case 9:
YY_RULE_SETUP
#line 95 "pool_config.l"
return POOL_EQUALS;
	YY_BREAK
case 10:
YY_RULE_SETUP
#line 97 "pool_config.l"
return POOL_PARSE_ERROR;
	YY_BREAK
case 11:
YY_RULE_SETUP
#line 99 "pool_config.l"
ECHO;
	YY_BREAK
#line 865 "pool_config.c"
case YY_STATE_EOF(INITIAL):
	yyterminate();

	case YY_END_OF_BUFFER:
		{
		/* Amount of text matched not including the EOB char. */
		int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;

		/* Undo the effects of YY_DO_BEFORE_ACTION. */
		*yy_cp = (yy_hold_char);
		YY_RESTORE_YY_MORE_OFFSET

		if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
			{
			/* We're scanning a new file or input source.  It's
			 * possible that this happened because the user
			 * just pointed yyin at a new source and called
			 * yylex().  If so, then we have to assure
			 * consistency between YY_CURRENT_BUFFER and our
			 * globals.  Here is the right place to do so, because
			 * this is the first action (other than possibly a
			 * back-up) that will match for the new input source.
			 */
			(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
			YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
			}

		/* Note that here we test for yy_c_buf_p "<=" to the position
		 * of the first EOB in the buffer, since yy_c_buf_p will
		 * already have been incremented past the NUL character
		 * (since all states make transitions on EOB to the
		 * end-of-buffer state).  Contrast this with the test
		 * in input().
		 */
		if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
			{ /* This was really a NUL. */
			yy_state_type yy_next_state;

			(yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;

			yy_current_state = yy_get_previous_state(  );

			/* Okay, we're now positioned to make the NUL
			 * transition.  We couldn't have
			 * yy_get_previous_state() go ahead and do it
			 * for us because it doesn't know how to deal
			 * with the possibility of jamming (and we don't
			 * want to build jamming into it because then it
			 * will run more slowly).
			 */

			yy_next_state = yy_try_NUL_trans( yy_current_state );

			yy_bp = (yytext_ptr) + YY_MORE_ADJ;

			if ( yy_next_state )
				{
				/* Consume the NUL. */
				yy_cp = ++(yy_c_buf_p);
				yy_current_state = yy_next_state;
				goto yy_match;
				}

			else
				{
				yy_cp = (yy_last_accepting_cpos);
				yy_current_state = (yy_last_accepting_state);
				goto yy_find_action;
				}
			}

		else switch ( yy_get_next_buffer(  ) )
			{
			case EOB_ACT_END_OF_FILE:
				{
				(yy_did_buffer_switch_on_eof) = 0;

				if ( yywrap( ) )
					{
					/* Note: because we've taken care in
					 * yy_get_next_buffer() to have set up
					 * yytext, we can now set up
					 * yy_c_buf_p so that if some total
					 * hoser (like flex itself) wants to
					 * call the scanner after we return the
					 * YY_NULL, it'll still work - another
					 * YY_NULL will get returned.
					 */
					(yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;

					yy_act = YY_STATE_EOF(YY_START);
					goto do_action;
					}

				else
					{
					if ( ! (yy_did_buffer_switch_on_eof) )
						YY_NEW_FILE;
					}
				break;
				}

			case EOB_ACT_CONTINUE_SCAN:
				(yy_c_buf_p) =
					(yytext_ptr) + yy_amount_of_matched_text;

				yy_current_state = yy_get_previous_state(  );

				yy_cp = (yy_c_buf_p);
				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
				goto yy_match;

			case EOB_ACT_LAST_MATCH:
				(yy_c_buf_p) =
				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];

				yy_current_state = yy_get_previous_state(  );

				yy_cp = (yy_c_buf_p);
				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
				goto yy_find_action;
			}
		break;
		}

	default:
		YY_FATAL_ERROR(
			"fatal flex scanner internal error--no action found" );
	} /* end of action switch */
		} /* end of scanning one token */
} /* end of yylex */

/* yy_get_next_buffer - try to read in a new buffer
 *
 * Returns a code representing an action:
 *	EOB_ACT_LAST_MATCH -
 *	EOB_ACT_CONTINUE_SCAN - continue scanning from current position
 *	EOB_ACT_END_OF_FILE - end of file
 */
static int yy_get_next_buffer (void)
{
    	register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
	register char *source = (yytext_ptr);
	register int number_to_move, i;
	int ret_val;

	if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
		YY_FATAL_ERROR(
		"fatal flex scanner internal error--end of buffer missed" );

	if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
		{ /* Don't try to fill the buffer, so this is an EOF. */
		if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
			{
			/* We matched a single character, the EOB, so
			 * treat this as a final EOF.
			 */
			return EOB_ACT_END_OF_FILE;
			}

		else
			{
			/* We matched some text prior to the EOB, first
			 * process it.
			 */
			return EOB_ACT_LAST_MATCH;
			}
		}

	/* Try to read more data. */

	/* First move last chars to start of buffer. */
	number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;

	for ( i = 0; i < number_to_move; ++i )
		*(dest++) = *(source++);

	if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
		/* don't do the read, it's not guaranteed to return an EOF,
		 * just force an EOF
		 */
		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;

	else
		{
			int num_to_read =
			YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;

		while ( num_to_read <= 0 )
			{ /* Not enough room in the buffer - grow it. */

			/* just a shorter name for the current buffer */
			YY_BUFFER_STATE b = YY_CURRENT_BUFFER;

			int yy_c_buf_p_offset =
				(int) ((yy_c_buf_p) - b->yy_ch_buf);

			if ( b->yy_is_our_buffer )
				{
				int new_size = b->yy_buf_size * 2;

				if ( new_size <= 0 )
					b->yy_buf_size += b->yy_buf_size / 8;
				else
					b->yy_buf_size *= 2;

				b->yy_ch_buf = (char *)
					/* Include room in for 2 EOB chars. */
					yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
				}
			else
				/* Can't grow it, we don't own it. */
				b->yy_ch_buf = 0;

			if ( ! b->yy_ch_buf )
				YY_FATAL_ERROR(
				"fatal error - scanner input buffer overflow" );

			(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];

			num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
						number_to_move - 1;

			}

		if ( num_to_read > YY_READ_BUF_SIZE )
			num_to_read = YY_READ_BUF_SIZE;

		/* Read in more data. */
		YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
			(yy_n_chars), (size_t) num_to_read );

		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
		}

	if ( (yy_n_chars) == 0 )
		{
		if ( number_to_move == YY_MORE_ADJ )
			{
			ret_val = EOB_ACT_END_OF_FILE;
			yyrestart(yyin  );
			}

		else
			{
			ret_val = EOB_ACT_LAST_MATCH;
			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
				YY_BUFFER_EOF_PENDING;
			}
		}

	else
		ret_val = EOB_ACT_CONTINUE_SCAN;

	if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
		/* Extend the array by 50%, plus the number we really need. */
		yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size  );
		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
	}

	(yy_n_chars) += number_to_move;
	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;

	(yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];

	return ret_val;
}

/* yy_get_previous_state - get the state just before the EOB char was reached */

    static yy_state_type yy_get_previous_state (void)
{
	register yy_state_type yy_current_state;
	register char *yy_cp;
    
	yy_current_state = (yy_start);

	for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
		{
		register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
		if ( yy_accept[yy_current_state] )
			{
			(yy_last_accepting_state) = yy_current_state;
			(yy_last_accepting_cpos) = yy_cp;
			}
		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
			{
			yy_current_state = (int) yy_def[yy_current_state];
			if ( yy_current_state >= 38 )
				yy_c = yy_meta[(unsigned int) yy_c];
			}
		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
		}

	return yy_current_state;
}

/* yy_try_NUL_trans - try to make a transition on the NUL character
 *
 * synopsis
 *	next_state = yy_try_NUL_trans( current_state );
 */
    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
{
	register int yy_is_jam;
    	register char *yy_cp = (yy_c_buf_p);

	register YY_CHAR yy_c = 1;
	if ( yy_accept[yy_current_state] )
		{
		(yy_last_accepting_state) = yy_current_state;
		(yy_last_accepting_cpos) = yy_cp;
		}
	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
		{
		yy_current_state = (int) yy_def[yy_current_state];
		if ( yy_current_state >= 38 )
			yy_c = yy_meta[(unsigned int) yy_c];
		}
	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
	yy_is_jam = (yy_current_state == 37);

	return yy_is_jam ? 0 : yy_current_state;
}

#ifndef YY_NO_INPUT
#ifdef __cplusplus
    static int yyinput (void)
#else
    static int input  (void)
#endif

{
	int c;
    
	*(yy_c_buf_p) = (yy_hold_char);

	if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
		{
		/* yy_c_buf_p now points to the character we want to return.
		 * If this occurs *before* the EOB characters, then it's a
		 * valid NUL; if not, then we've hit the end of the buffer.
		 */
		if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
			/* This was really a NUL. */
			*(yy_c_buf_p) = '\0';

		else
			{ /* need more input */
			int offset = (yy_c_buf_p) - (yytext_ptr);
			++(yy_c_buf_p);

			switch ( yy_get_next_buffer(  ) )
				{
				case EOB_ACT_LAST_MATCH:
					/* This happens because yy_g_n_b()
					 * sees that we've accumulated a
					 * token and flags that we need to
					 * try matching the token before
					 * proceeding.  But for input(),
					 * there's no matching to consider.
					 * So convert the EOB_ACT_LAST_MATCH
					 * to EOB_ACT_END_OF_FILE.
					 */

					/* Reset buffer status. */
					yyrestart(yyin );

					/*FALLTHROUGH*/

				case EOB_ACT_END_OF_FILE:
					{
					if ( yywrap( ) )
						return EOF;

					if ( ! (yy_did_buffer_switch_on_eof) )
						YY_NEW_FILE;
#ifdef __cplusplus
					return yyinput();
#else
					return input();
#endif
					}

				case EOB_ACT_CONTINUE_SCAN:
					(yy_c_buf_p) = (yytext_ptr) + offset;
					break;
				}
			}
		}

	c = *(unsigned char *) (yy_c_buf_p);	/* cast for 8-bit char's */
	*(yy_c_buf_p) = '\0';	/* preserve yytext */
	(yy_hold_char) = *++(yy_c_buf_p);

	return c;
}
#endif	/* ifndef YY_NO_INPUT */

/** Immediately switch to a different input stream.
 * @param input_file A readable stream.
 * 
 * @note This function does not reset the start condition to @c INITIAL .
 */
    void yyrestart  (FILE * input_file )
{
    
	if ( ! YY_CURRENT_BUFFER ){
        yyensure_buffer_stack ();
		YY_CURRENT_BUFFER_LVALUE =
            yy_create_buffer(yyin,YY_BUF_SIZE );
	}

	yy_init_buffer(YY_CURRENT_BUFFER,input_file );
	yy_load_buffer_state( );
}

/** Switch to a different input buffer.
 * @param new_buffer The new input buffer.
 * 
 */
    void yy_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
{
    
	/* TODO. We should be able to replace this entire function body
	 * with
	 *		yypop_buffer_state();
	 *		yypush_buffer_state(new_buffer);
     */
	yyensure_buffer_stack ();
	if ( YY_CURRENT_BUFFER == new_buffer )
		return;

	if ( YY_CURRENT_BUFFER )
		{
		/* Flush out information for old buffer. */
		*(yy_c_buf_p) = (yy_hold_char);
		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
		}

	YY_CURRENT_BUFFER_LVALUE = new_buffer;
	yy_load_buffer_state( );

	/* We don't actually know whether we did this switch during
	 * EOF (yywrap()) processing, but the only time this flag
	 * is looked at is after yywrap() is called, so it's safe
	 * to go ahead and always set it.
	 */
	(yy_did_buffer_switch_on_eof) = 1;
}

static void yy_load_buffer_state  (void)
{
    	(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
	(yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
	yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
	(yy_hold_char) = *(yy_c_buf_p);
}

/** Allocate and initialize an input buffer state.
 * @param file A readable stream.
 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
 * 
 * @return the allocated buffer state.
 */
    YY_BUFFER_STATE yy_create_buffer  (FILE * file, int  size )
{
	YY_BUFFER_STATE b;
    
	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

	b->yy_buf_size = size;

	/* yy_ch_buf has to be 2 characters longer than the size given because
	 * we need to put in 2 end-of-buffer characters.
	 */
	b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2  );
	if ( ! b->yy_ch_buf )
		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

	b->yy_is_our_buffer = 1;

	yy_init_buffer(b,file );

	return b;
}

/** Destroy the buffer.
 * @param b a buffer created with yy_create_buffer()
 * 
 */
    void yy_delete_buffer (YY_BUFFER_STATE  b )
{
    
	if ( ! b )
		return;

	if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
		YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;

	if ( b->yy_is_our_buffer )
		yyfree((void *) b->yy_ch_buf  );

	yyfree((void *) b  );
}

/* Initializes or reinitializes a buffer.
 * This function is sometimes called more than once on the same buffer,
 * such as during a yyrestart() or at EOF.
 */
    static void yy_init_buffer  (YY_BUFFER_STATE  b, FILE * file )

{
	int oerrno = errno;
    
	yy_flush_buffer(b );

	b->yy_input_file = file;
	b->yy_fill_buffer = 1;

    /* If b is the current buffer, then yy_init_buffer was _probably_
     * called from yyrestart() or through yy_get_next_buffer.
     * In that case, we don't want to reset the lineno or column.
     */
    if (b != YY_CURRENT_BUFFER){
        b->yy_bs_lineno = 1;
        b->yy_bs_column = 0;
    }

        b->yy_is_interactive = 0;
    
	errno = oerrno;
}

/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
 * 
 */
    void yy_flush_buffer (YY_BUFFER_STATE  b )
{
    	if ( ! b )
		return;

	b->yy_n_chars = 0;

	/* We always need two end-of-buffer characters.  The first causes
	 * a transition to the end-of-buffer state.  The second causes
	 * a jam in that state.
	 */
	b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
	b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;

	b->yy_buf_pos = &b->yy_ch_buf[0];

	b->yy_at_bol = 1;
	b->yy_buffer_status = YY_BUFFER_NEW;

	if ( b == YY_CURRENT_BUFFER )
		yy_load_buffer_state( );
}

/** Pushes the new state onto the stack. The new state becomes
 *  the current state. This function will allocate the stack
 *  if necessary.
 *  @param new_buffer The new state.
 *  
 */
void yypush_buffer_state (YY_BUFFER_STATE new_buffer )
{
    	if (new_buffer == NULL)
		return;

	yyensure_buffer_stack();

	/* This block is copied from yy_switch_to_buffer. */
	if ( YY_CURRENT_BUFFER )
		{
		/* Flush out information for old buffer. */
		*(yy_c_buf_p) = (yy_hold_char);
		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
		}

	/* Only push if top exists. Otherwise, replace top. */
	if (YY_CURRENT_BUFFER)
		(yy_buffer_stack_top)++;
	YY_CURRENT_BUFFER_LVALUE = new_buffer;

	/* copied from yy_switch_to_buffer. */
	yy_load_buffer_state( );
	(yy_did_buffer_switch_on_eof) = 1;
}

/** Removes and deletes the top of the stack, if present.
 *  The next element becomes the new top.
 *  
 */
void yypop_buffer_state (void)
{
    	if (!YY_CURRENT_BUFFER)
		return;

	yy_delete_buffer(YY_CURRENT_BUFFER );
	YY_CURRENT_BUFFER_LVALUE = NULL;
	if ((yy_buffer_stack_top) > 0)
		--(yy_buffer_stack_top);

	if (YY_CURRENT_BUFFER) {
		yy_load_buffer_state( );
		(yy_did_buffer_switch_on_eof) = 1;
	}
}

/* Allocates the stack if it does not exist.
 *  Guarantees space for at least one push.
 */
static void yyensure_buffer_stack (void)
{
	int num_to_alloc;
    
	if (!(yy_buffer_stack)) {

		/* First allocation is just for 2 elements, since we don't know if this
		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
		 * immediate realloc on the next call.
         */
		num_to_alloc = 1;
		(yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
								(num_to_alloc * sizeof(struct yy_buffer_state*)
								);
		if ( ! (yy_buffer_stack) )
			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
								  
		memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
				
		(yy_buffer_stack_max) = num_to_alloc;
		(yy_buffer_stack_top) = 0;
		return;
	}

	if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){

		/* Increase the buffer to prepare for a possible push. */
		int grow_size = 8 /* arbitrary grow size */;

		num_to_alloc = (yy_buffer_stack_max) + grow_size;
		(yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
								((yy_buffer_stack),
								num_to_alloc * sizeof(struct yy_buffer_state*)
								);
		if ( ! (yy_buffer_stack) )
			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );

		/* zero only the new slots.*/
		memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
		(yy_buffer_stack_max) = num_to_alloc;
	}
}

/** Setup the input buffer state to scan directly from a user-specified character buffer.
 * @param base the character buffer
 * @param size the size in bytes of the character buffer
 * 
 * @return the newly allocated buffer state object. 
 */
YY_BUFFER_STATE yy_scan_buffer  (char * base, yy_size_t  size )
{
	YY_BUFFER_STATE b;
    
	if ( size < 2 ||
	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
	     base[size-1] != YY_END_OF_BUFFER_CHAR )
		/* They forgot to leave room for the EOB's. */
		return 0;

	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );

	b->yy_buf_size = size - 2;	/* "- 2" to take care of EOB's */
	b->yy_buf_pos = b->yy_ch_buf = base;
	b->yy_is_our_buffer = 0;
	b->yy_input_file = 0;
	b->yy_n_chars = b->yy_buf_size;
	b->yy_is_interactive = 0;
	b->yy_at_bol = 1;
	b->yy_fill_buffer = 0;
	b->yy_buffer_status = YY_BUFFER_NEW;

	yy_switch_to_buffer(b  );

	return b;
}

/** Setup the input buffer state to scan a string. The next call to yylex() will
 * scan from a @e copy of @a str.
 * @param yystr a NUL-terminated string to scan
 * 
 * @return the newly allocated buffer state object.
 * @note If you want to scan bytes that may contain NUL values, then use
 *       yy_scan_bytes() instead.
 */
YY_BUFFER_STATE yy_scan_string (yyconst char * yystr )
{
    
	return yy_scan_bytes(yystr,strlen(yystr) );
}

/** Setup the input buffer state to scan the given bytes. The next call to yylex() will
 * scan from a @e copy of @a bytes.
 * @param bytes the byte buffer to scan
 * @param len the number of bytes in the buffer pointed to by @a bytes.
 * 
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yy_scan_bytes  (yyconst char * yybytes, int  _yybytes_len )
{
	YY_BUFFER_STATE b;
	char *buf;
	yy_size_t n;
	int i;
    
	/* Get memory for full buffer, including space for trailing EOB's. */
	n = _yybytes_len + 2;
	buf = (char *) yyalloc(n  );
	if ( ! buf )
		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );

	for ( i = 0; i < _yybytes_len; ++i )
		buf[i] = yybytes[i];

	buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;

	b = yy_scan_buffer(buf,n );
	if ( ! b )
		YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );

	/* It's okay to grow etc. this buffer, and we should throw it
	 * away when we're done.
	 */
	b->yy_is_our_buffer = 1;

	return b;
}

#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif

static void yy_fatal_error (yyconst char* msg )
{
    	(void) fprintf( stderr, "%s\n", msg );
	exit( YY_EXIT_FAILURE );
}

/* Redefine yyless() so it works in section 3 code. */

#undef yyless
#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
		yytext[yyleng] = (yy_hold_char); \
		(yy_c_buf_p) = yytext + yyless_macro_arg; \
		(yy_hold_char) = *(yy_c_buf_p); \
		*(yy_c_buf_p) = '\0'; \
		yyleng = yyless_macro_arg; \
		} \
	while ( 0 )

/* Accessor  methods (get/set functions) to struct members. */

/** Get the current line number.
 * 
 */
int yyget_lineno  (void)
{
        
    return yylineno;
}

/** Get the input stream.
 * 
 */
FILE *yyget_in  (void)
{
        return yyin;
}

/** Get the output stream.
 * 
 */
FILE *yyget_out  (void)
{
        return yyout;
}

/** Get the length of the current token.
 * 
 */
int yyget_leng  (void)
{
        return yyleng;
}

/** Get the current token.
 * 
 */

char *yyget_text  (void)
{
        return yytext;
}

/** Set the current line number.
 * @param line_number
 * 
 */
void yyset_lineno (int  line_number )
{
    
    yylineno = line_number;
}

/** Set the input stream. This does not discard the current
 * input buffer.
 * @param in_str A readable stream.
 * 
 * @see yy_switch_to_buffer
 */
void yyset_in (FILE *  in_str )
{
        yyin = in_str ;
}

void yyset_out (FILE *  out_str )
{
        yyout = out_str ;
}

int yyget_debug  (void)
{
        return yy_flex_debug;
}

void yyset_debug (int  bdebug )
{
        yy_flex_debug = bdebug ;
}

static int yy_init_globals (void)
{
        /* Initialization is the same as for the non-reentrant scanner.
     * This function is called from yylex_destroy(), so don't allocate here.
     */

    (yy_buffer_stack) = 0;
    (yy_buffer_stack_top) = 0;
    (yy_buffer_stack_max) = 0;
    (yy_c_buf_p) = (char *) 0;
    (yy_init) = 0;
    (yy_start) = 0;

/* Defined in main.c */
#ifdef YY_STDINIT
    yyin = stdin;
    yyout = stdout;
#else
    yyin = (FILE *) 0;
    yyout = (FILE *) 0;
#endif

    /* For future reference: Set errno on error, since we are called by
     * yylex_init()
     */
    return 0;
}

/* yylex_destroy is for both reentrant and non-reentrant scanners. */
int yylex_destroy  (void)
{
    
    /* Pop the buffer stack, destroying each element. */
	while(YY_CURRENT_BUFFER){
		yy_delete_buffer(YY_CURRENT_BUFFER  );
		YY_CURRENT_BUFFER_LVALUE = NULL;
		yypop_buffer_state();
	}

	/* Destroy the stack itself. */
	yyfree((yy_buffer_stack) );
	(yy_buffer_stack) = NULL;

    /* Reset the globals. This is important in a non-reentrant scanner so the next time
     * yylex() is called, initialization will occur. */
    yy_init_globals( );

    return 0;
}

/*
 * Internal utility routines.
 */

#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
{
	register int i;
	for ( i = 0; i < n; ++i )
		s1[i] = s2[i];
}
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * s )
{
	register int n;
	for ( n = 0; s[n]; ++n )
		;

	return n;
}
#endif

void *yyalloc (yy_size_t  size )
{
	return (void *) malloc( size );
}

void *yyrealloc  (void * ptr, yy_size_t  size )
{
	/* The cast to (char *) in the following accommodates both
	 * implementations that use char* generic pointers, and those
	 * that use void* generic pointers.  It works with the latter
	 * because both ANSI C and C++ allow castless assignment from
	 * any pointer type to void*, and deal with argument conversions
	 * as though doing an assignment.
	 */
	return (void *) realloc( (char *) ptr, size );
}

void yyfree (void * ptr )
{
	free( (char *) ptr );	/* see yyrealloc() for (char *) cast */
}

#define YYTABLES_NAME "yytables"

#line 99 "pool_config.l"



int pool_init_config(void)
{
	int res;
	static char localhostname[256];
	int i;

	pool_config = malloc(sizeof(POOL_CONFIG));
	if (pool_config == NULL)
	{
		pool_error("failed to allocate pool_config");
		return(-1);
	}

	memset(pool_config, 0, sizeof(POOL_CONFIG));

	pool_config->backend_desc = pool_shared_memory_create(sizeof(BackendDesc));
	if (pool_config->backend_desc == NULL)
	{
		pool_error("failed to allocate pool_config->backend_desc");
		return -1;
	}

	/* set hardcoded default values */
	pool_config->listen_addresses = "localhost";
	pool_config->port = 9999;
	pool_config->pcp_port = 9898;
	pool_config->socket_dir = DEFAULT_SOCKET_DIR;
	pool_config->pcp_socket_dir = DEFAULT_SOCKET_DIR;
	pool_config->backend_socket_dir = DEFAULT_SOCKET_DIR;
	pool_config->pcp_timeout = 10;
	pool_config->num_init_children = 32;
	pool_config->max_pool = 4;
	pool_config->child_life_time = 300;
	pool_config->client_idle_limit = 0;
	pool_config->connection_life_time = 0;
	pool_config->child_max_connections = 0;
	pool_config->authentication_timeout = 60;
	pool_config->logdir = DEFAULT_LOGDIR;
	pool_config->pid_file_name = DEFAULT_PID_FILE_NAME;
 	pool_config->log_statement = 0;
 	pool_config->log_per_node_statement = 0;
	pool_config->log_connections = 0;
	pool_config->log_hostname = 0;
	pool_config->enable_pool_hba = 0;

	pool_config->replication_mode = 0;
	pool_config->load_balance_mode = 0;
	pool_config->replication_stop_on_mismatch = 0;
	pool_config->replicate_select = 0;
	pool_config->reset_query_list = default_reset_query_list;
	pool_config->num_reset_queries = sizeof(default_reset_query_list)/sizeof(char *);
	pool_config->reset_query_list = default_reset_query_list;
	pool_config->print_timestamp = 1;
	pool_config->master_slave_mode = 0;
	pool_config->connection_cache = 1;
	pool_config->health_check_timeout = 20;
	pool_config->health_check_period = 0;
	pool_config->health_check_user = "nobody";
	pool_config->failover_command = "";
	pool_config->failback_command = "";
	pool_config->fail_over_on_backend_error = 1;
	pool_config->insert_lock = 1;
	pool_config->ignore_leading_white_space = 1;
	pool_config->parallel_mode = 0;
	pool_config->enable_query_cache = 0;
	pool_config->system_db_hostname = "localhost";
	pool_config->system_db_port = 5432;
	pool_config->system_db_dbname = "pgpool";
	pool_config->system_db_schema = "pgpool_catalog";
	pool_config->system_db_user = "pgpool";
	pool_config->system_db_password = "";
	pool_config->backend_desc->num_backends = 0;
    pool_config->recovery_user = "";
    pool_config->recovery_password = "";
    pool_config->recovery_1st_stage_command = "";
    pool_config->recovery_2nd_stage_command = "";
	pool_config->recovery_timeout = 90;
	pool_config->client_idle_limit_in_recovery = 0;

	res = gethostname(localhostname,sizeof(localhostname));
	if(res !=0 )
	{
		pool_debug("faild to get this hostname");
	}
	pool_config->pgpool2_hostname = localhostname;

	for (i=0;i<MAX_CONNECTION_SLOTS;i++)
	{
		clear_host_entry(i);
	}
	return 0;
}

int pool_get_config(char *confpath, POOL_CONFIG_CONTEXT context)
{
	FILE *fd;
	int token;
	char key[1024];
	double total_weight;
	int i;

#define PARSE_ERROR()		pool_error("pool_config: parse error at line %d '%s'", Lineno, yytext)

	/* open config file */
	fd = fopen(confpath, "r");
	if (!fd)
	{
		fprintf(stderr, "pool_config: could not open configuration file (%s)\n",
				POOL_CONF_FILE_NAME);
		fprintf(stderr, "pool_config: using default values...\n");
		return 0;
	}

	yyin = fd;
	Lineno = 1;

	while ((token = yylex()))
	{
		if (token == POOL_PARSE_ERROR)
		{
			PARSE_ERROR();
			fclose(fd);
			return(-1);
		}
		if (token == POOL_EOL)
			continue;

		if (token != POOL_KEY)
		{
			PARSE_ERROR();
			fclose(fd);
			return(-1);
		}

		strncpy(key, yytext, sizeof(key));

		pool_debug("key: %s", key);

		token = yylex();

		if (token == POOL_EQUALS)
			token = yylex();

		pool_debug("value: %s kind: %d", yytext, token);

		if (!strcmp(key, "allow_inet_domain_socket") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			/* for backward compatibility */
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			if (v)
				pool_config->listen_addresses = strdup("*");
			else
				pool_config->listen_addresses = strdup("");
		}
		else if (!strcmp(key, "listen_addresses") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->listen_addresses = str;
		}

		else if (!strcmp(key, "port") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 1024)
			{
				pool_error("pool_config: %s must be 1024 or higher numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->port = v;
		}
		else if (!strcmp(key, "pcp_port") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 1024)
			{
				pool_error("pool_config: %s must be 1024 or higher numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->pcp_port = v;
		}
		else if (!strcmp(key, "socket_dir") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->socket_dir = str;
		}
		else if (!strcmp(key, "pcp_socket_dir") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->pcp_socket_dir = str;
		}
		else if (!strcmp(key, "pcp_timeout") &&
			 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be equal or greater or equal to 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->pcp_timeout = v;
		}
		else if (!strcmp(key, "num_init_children") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 1)
			{
				pool_error("pool_config: %s must be higher than 1 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->num_init_children = v;
		}
		else if (!strcmp(key, "child_life_time") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be greater or equal to 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->child_life_time = v;
		}
		else if (!strcmp(key, "client_idle_limit") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be greater or equal to 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->client_idle_limit = v;
		}
		else if (!strcmp(key, "connection_life_time") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be greater or equal to 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->connection_life_time = v;
		}
		else if (!strcmp(key, "child_max_connections") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be greater or equal to 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->child_max_connections = v;
		}
		else if (!strcmp(key, "authentication_timeout") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be higher than 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->authentication_timeout = v;
		}
		else if (!strcmp(key, "max_pool") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be greater or equal to 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->max_pool = v;
		}
		else if (!strcmp(key, "logdir") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->logdir = str;
		}
		else if (!strcmp(key, "pid_file_name") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->pid_file_name = str;
		}
       	else if (!strcmp(key, "log_connections") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->log_connections = v;
		}
       	else if (!strcmp(key, "log_hostname") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->log_hostname = v;
		}
       	else if (!strcmp(key, "enable_pool_hba") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->enable_pool_hba = v;
		}
		else if (!strcmp(key, "backend_socket_dir") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->backend_socket_dir = str;
		}
		else if (!strcmp(key, "replication_mode") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->replication_mode = pool_config->replication_enabled = v;

			if (pool_config->master_slave_enabled && pool_config->replication_enabled)
			{
				pool_error("pool_config: replication_mode and master_slave_mode cannot be enabled at the same time");
				fclose(fd);
				return(-1);
			}

		}
		else if (!strcmp(key, "load_balance_mode") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->load_balance_mode = v;
		}
		else if (!strcmp(key, "replication_stop_on_mismatch") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_debug("replication_stop_on_mismatch: %d", v);
			pool_config->replication_stop_on_mismatch = v;
		}
		else if (!strcmp(key, "replicate_select") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_debug("replicate_select: %d", v);
			pool_config->replicate_select = v;
		}
		else if (!strcmp(key, "reset_query_list") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->reset_query_list = extract_string_tokens(str, ";", &pool_config->num_reset_queries);
			if (pool_config->reset_query_list == NULL)
			{
				fclose(fd);
				return(-1);
			}
		}

		else if (!strcmp(key, "print_timestamp") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->print_timestamp = v;
		}

		else if (!strcmp(key, "master_slave_mode") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->master_slave_mode = pool_config->master_slave_enabled = v;

			if (pool_config->master_slave_enabled && pool_config->replication_enabled)
			{
				pool_error("pool_config: replication_mode and master_slave_mode cannot be enabled at the same time");
				fclose(fd);
				return(-1);
			}
		}

		else if (!strcmp(key, "connection_cache") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->connection_cache = v;
		}

		else if (!strcmp(key, "health_check_timeout") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be equal or higher than 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->health_check_timeout = v;
		}

		else if (!strcmp(key, "health_check_period") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be equal or higher than 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->health_check_period = v;
		}

		else if (!strcmp(key, "health_check_user") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->health_check_user = str;
		}

		else if (!strcmp(key, "failover_command") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->failover_command = str;
		}

		else if (!strcmp(key, "failback_command") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->failback_command = str;
		}

		else if (!strcmp(key, "fail_over_on_backend_error") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->fail_over_on_backend_error = v;
		}

		else if (!strcmp(key, "recovery_user") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->recovery_user = str;
		}

		else if (!strcmp(key, "recovery_password") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->recovery_password = str;
		}

		else if (!strcmp(key, "recovery_1st_stage_command") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->recovery_1st_stage_command = str;
		}

		else if (!strcmp(key, "recovery_2nd_stage_command") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->recovery_2nd_stage_command = str;
		}

		else if (!strcmp(key, "recovery_timeout") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be equal or higher than 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->recovery_timeout = v;
		}

		else if (!strcmp(key, "client_idle_limit_in_recovery") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be greater or equal to 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->client_idle_limit_in_recovery = v;
		}

		else if (!strcmp(key, "insert_lock") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->insert_lock = v;
		}

		else if (!strcmp(key, "ignore_leading_white_space") &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->ignore_leading_white_space = v;
		}

		else if (!strcmp(key, "parallel_mode") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->parallel_mode = v;
		}

		else if (!strcmp(key, "enable_query_cache") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}
			pool_config->enable_query_cache = v;
		}

		else if (!strcmp(key, "pgpool2_hostname") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			if(strlen(str))
				pool_config->pgpool2_hostname = str;
		}

		else if (!strcmp(key, "system_db_hostname") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->system_db_hostname = str;
		}

		else if (!strcmp(key, "system_db_port") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			int v = atoi(yytext);

			if (token != POOL_INTEGER || v < 0)
			{
				pool_error("pool_config: %s must be equal or higher than 0 numeric value", key);
				fclose(fd);
				return(-1);
			}
			pool_config->system_db_port = v;
		}

		else if (!strcmp(key, "system_db_dbname") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->system_db_dbname = str;
		}

		else if (!strcmp(key, "system_db_schema") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->system_db_schema = str;
		}

		else if (!strcmp(key, "system_db_user") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->system_db_user = str;
		}

		else if (!strcmp(key, "system_db_password") && CHECK_CONTEXT(INIT_CONFIG, context))
		{
			char *str;

			if (token != POOL_STRING && token != POOL_UNQUOTED_STRING && token != POOL_KEY)
			{
				PARSE_ERROR();
				fclose(fd);
				return(-1);
			}
			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			pool_config->system_db_password = str;
		}

		else if (!strncmp(key, "backend_hostname", 16) &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context) &&
				 mypid == getpid()) /* this parameter must be modified by parent pid */
		{
			int slot;
			char *str;

			slot = atoi(key + 16);
			if (slot < 0 || slot >= MAX_CONNECTION_SLOTS)
			{
				pool_error("pool_config: backend number %s for backend_hostname out of range", key);
				fclose(fd);
				return(-1);
			}

			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			if (context == INIT_CONFIG ||
				(context == RELOAD_CONFIG && BACKEND_INFO(slot).backend_status == CON_UNUSED))
				strncpy(BACKEND_INFO(slot).backend_hostname, str, MAX_DB_HOST_NAMELEN);
		}

		else if (!strncmp(key, "backend_port", 12) &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context) &&
				 mypid == getpid()) /* this parameter must be modified by parent pid */
		{
			int slot;

			slot = atoi(key + 12);
			if (slot < 0 || slot >= MAX_CONNECTION_SLOTS)
			{
				pool_error("pool_config: host number %s for port number out of range", key);
				fclose(fd);
				return(-1);
			}
			pool_debug("pool_config: port slot number %d ", slot);
			if (context == INIT_CONFIG)
			{
				BACKEND_INFO(slot).backend_port = atoi(yytext);
				BACKEND_INFO(slot).backend_status = CON_CONNECT_WAIT;
			}
			else if (context == RELOAD_CONFIG && BACKEND_INFO(slot).backend_status == CON_UNUSED)
			{
				BACKEND_INFO(slot).backend_port = atoi(yytext);
				BACKEND_INFO(slot).backend_status = CON_DOWN;
			}
		}

		else if (!strncmp(key, "backend_weight", 14) &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context) &&
				 mypid == getpid()) /* this parameter must be modified by parent pid */
		{
			int slot;
			double v;
			BACKEND_STATUS status;

			slot = atoi(key + 14);
			if (slot < 0 || slot >= MAX_CONNECTION_SLOTS)
			{
				pool_error("pool_config: weight number %s for port number out of range", key);
				fclose(fd);
				return(-1);
			}

			v = atof(yytext);

			if (v < 0.0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				fclose(fd);
				return(-1);
			}

			pool_debug("pool_config: weight slot number %d weight: %f", slot, v);
			status = BACKEND_INFO(slot).backend_status;

			if (context == INIT_CONFIG || context == RELOAD_CONFIG)
			{
				double old_v = pool_config->backend_desc->backend_info[slot].unnormalized_weight;
				pool_config->backend_desc->backend_info[slot].unnormalized_weight = v;

				/*
				 * Log weight change event only when context is
				 * reloading of pgpool.conf and weight is actually
				 * changed
				 */
				if (context == RELOAD_CONFIG && old_v != v)
				{
					pool_log("Backend weight for backend%d changed from %f to %f. This will take effect from next client session.", slot, old_v, v);
				}
			}
		}
		else if (!strncmp(key, "backend_data_directory", 22) &&
				 CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context) &&
				 mypid == getpid()) /* this parameter must be modified by parent pid */
		{
			int slot;
			char *str;
			BACKEND_STATUS status;

			slot = atoi(key + 22);
			if (slot < 0 || slot >= MAX_CONNECTION_SLOTS)
			{
				pool_error("pool_config: backend number %s for backend_data_directory out of range", key);
				fclose(fd);
				return(-1);
			}

			str = extract_string(yytext, token);
			if (str == NULL)
			{
				fclose(fd);
				return(-1);
			}
			status = BACKEND_INFO(slot).backend_status;
			if (context == INIT_CONFIG ||
				(context == RELOAD_CONFIG && (status == CON_UNUSED || status == CON_DOWN)))
				strncpy(BACKEND_INFO(slot).backend_data_directory, str, MAX_PATH_LENGTH);
		}
       	else if (!strcmp(key, "log_statement") && CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				return(-1);
			}
			pool_config->log_statement = v;
		}
       	else if (!strcmp(key, "log_per_node_statement") && CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				return(-1);
			}
			pool_config->log_per_node_statement = v;
		}
       	else if (!strcmp(key, "log_statement") && CHECK_CONTEXT(INIT_CONFIG|RELOAD_CONFIG, context))
		{
			int v = eval_logical(yytext);

			if (v < 0)
			{
				pool_error("pool_config: invalid value %s for %s", yytext, key);
				return(-1);
			}
			pool_config->log_statement = v;
		}
	}

	fclose(fd);

	pool_config->backend_desc->num_backends = 0;
	total_weight = 0.0;

	for (i=0;i<MAX_CONNECTION_SLOTS;i++)
	{
		/* port number == 0 indicates that this server is out of use */
		if (BACKEND_INFO(i).backend_port == 0)
		{
			clear_host_entry(i);
		}

		else
		{
			total_weight += BACKEND_INFO(i).unnormalized_weight;
			pool_config->backend_desc->num_backends = i+1;
		}
	}

	pool_debug("num_backends: %d num_backends: %d total_weight: %f",
			   pool_config->backend_desc->num_backends, pool_config->backend_desc->num_backends, total_weight);
	/*
	 * Normalize load balacing weights. What we are doing here is,
	 * assign 0 to RAND_MAX to each backend's weight according to the
	 * value weightN.  For example, if two backends are assigned 1.0,
	 * then each backend will get RAND_MAX/2 normalized weight.
	 */
	for (i=0;i<MAX_CONNECTION_SLOTS;i++)
	{
#ifdef DEBUG
		print_host_entry(i);
#endif

		if (pool_config->backend_desc->backend_info[i].backend_port != 0)
		{
			pool_config->backend_desc->backend_info[i].backend_weight =
				(RAND_MAX) * pool_config->backend_desc->backend_info[i].unnormalized_weight / total_weight;
			pool_debug("backend %d weight: %f", i, pool_config->backend_desc->backend_info[i].backend_weight);
		}
	}

	if (pool_config->parallel_mode || pool_config->enable_query_cache)
	{
		int dist_num;
		SystemDBInfo *info;
		
		system_db_info = malloc(sizeof(POOL_SYSTEMDB_CONNECTION_POOL));
		if (system_db_info == NULL)
		{
			pool_error("failed to allocate sytem_db_info");
			return -1;
		}
		memset(system_db_info, 0, sizeof(*system_db_info));

		system_db_info->system_db_status = pool_shared_memory_create(sizeof(BACKEND_STATUS));
		if (system_db_info->system_db_status == NULL)
		{
			pool_error("failed to allocate system_db_info->system_db_status");
			return -1;
		}
		*system_db_info->system_db_status = CON_CONNECT_WAIT;	/* which is the same as SYSDB_STATUS = CON_CONNECT_WAIT */

		info = malloc(sizeof(SystemDBInfo));
		if (info == NULL)
		{
			pool_error("failed to allocate info");
			return -1;
		}

		system_db_info->info = info;
		info->hostname = pool_config->system_db_hostname;
		info->port = pool_config->system_db_port;
		info->user = pool_config->system_db_user;
		info->password = pool_config->system_db_password;
		info->database_name = pool_config->system_db_dbname;
		info->schema_name = pool_config->system_db_schema;
		info->dist_def_num = 0;
		info->dist_def_slot = NULL;

		if (pool_config->parallel_mode)
		{
			dist_num = pool_memset_system_db_info(info);
			if(dist_num < 0)
			{
				pool_error("failed to get systemdb info");
				return(-1);
			}
		}
		if (pool_config->enable_query_cache)
		{
			info->query_cache_table_info.register_prepared_statement = NULL;
			if (! pool_query_cache_table_exists())
			{
				pool_error("failed to locate query_cache table. perhaps it's not defined?");
				return -1;
			}
		}
		SYSDB_STATUS = CON_UP;
	}

	return 0;
}

static char *extract_string(char *value, POOL_TOKEN token)
{
	char *ret;

	ret = strdup(value);
	if (!ret)
	{
		pool_error("extract_string: out of memory");
		return NULL;
	}

	if (token == POOL_STRING)
	{
		ret[strlen(ret)-1] = '\0';
		return (ret+1);
	}
	return ret;
}

static int eval_logical(char *str)
{
	int ret;

	if (!strcasecmp(str, "true"))
		ret = 1;
	else if (!strcasecmp(str, "false"))
		ret = 0;
	else if (!strcmp(str, "1"))
		ret = 1;
	else if (!strcmp(str, "0"))
		ret = 0;
	else
		ret = -1;

	return ret;
}

/*
 * extract tokens separated by delimi from str. return value is an
 * array of pointers to malloced strings. number of tokens is set to
 * n; note that str will be destroyed by strtok(). Also return value
 * points to static data, that means subsequent call will change the
 * return value.
 */
#define MAXTOKENS 1024
static char **extract_string_tokens(char *str, char *delimi, int *n)
{
	char *token;
	static char *tokens[MAXTOKENS];

	*n = 0;

	for (token = strtok(str, delimi); token != NULL && *n < MAXTOKENS; token = strtok(NULL, delimi))
	{
		tokens[*n] = strdup(token);
		if (tokens[*n] == NULL)
		{
			pool_error("extract_string_tokens: out of memory");
			return NULL;
		}
		pool_debug("extract_string_tokens: token: %s", tokens[*n]);
		(*n)++;
	}
	return tokens;
}

static void clear_host_entry(int slot)
{
	*pool_config->backend_desc->backend_info[slot].backend_hostname = '\0';
	pool_config->backend_desc->backend_info[slot].backend_port = 0;
	pool_config->backend_desc->backend_info[slot].backend_status = CON_UNUSED;
	pool_config->backend_desc->backend_info[slot].backend_weight = 0.0;
}

#ifdef DEBUG
static void print_host_entry(int slot)
{
	pool_debug("slot: %d host: %s port: %d status: %d weight: %f",
			   slot,
			   pool_config->server_hostnames[slot],
			   pool_config->server_ports[slot],
			   pool_config->server_status[slot],
			   pool_config->server_weights[slot]);
}
#endif