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/* -*-pgsql-c-*- */
/*
* $Header$
*
* Copyright (c) 2006-2024, 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.
*/
#ifndef POOL_PARSER_H
#define POOL_PARSER_H
#include "../pool_type.h"
#include <setjmp.h>
extern jmp_buf jmpbuffer;
extern int server_version_num;
/* from include/postgresql_ext.h */
#define InvalidOid ((Oid) 0)
/* from include/c.h */
/*
* CppAsString
* Convert the argument to a string, using the C preprocessor.
* CppConcat
* Concatenate two arguments together, using the C preprocessor.
*
* Note: There used to be support here for pre-ANSI C compilers that didn't
* support # and ##. Nowadays, these macros are just for clarity and/or
* backward compatibility with existing PostgreSQL code.
*/
#define CppAsString(identifier) #identifier
#define CppConcat(x, y) x##y
/*
* Index
* Index into any memory resident array.
*
* Note:
* Indices are non negative.
*/
typedef unsigned int Index;
/*
* lengthof
* Number of elements in an array.
*/
#define lengthof(array) (sizeof(array) / sizeof(((array)[0])))
/*
* endof
* Address of the element one past the last in an array.
*/
#define endof(array) (&(array)[lengthof(array)])
/* GCC and XLC support format attributes */
#if defined(__GNUC__) || defined(__IBMC__)
#define pg_attribute_format_arg(a) __attribute__((format_arg(a)))
#define pg_attribute_printf(f,a) __attribute__((format(PG_PRINTF_ATTRIBUTE, f, a)))
#else
#define pg_attribute_format_arg(a)
#define pg_attribute_printf(f,a)
#endif
/* GCC, Sunpro and XLC support aligned, packed and noreturn */
#if defined(__GNUC__) || defined(__SUNPRO_C) || defined(__IBMC__)
#define pg_attribute_aligned(a) __attribute__((aligned(a)))
#define pg_attribute_noreturn() __attribute__((noreturn))
#define pg_attribute_packed() __attribute__((packed))
#define HAVE_PG_ATTRIBUTE_NORETURN 1
#else
/*
* NB: aligned and packed are not given default definitions because they
* affect code functionality; they *must* be implemented by the compiler
* if they are to be used.
*/
#define pg_attribute_noreturn()
#endif
/*
* Max
* Return the maximum of two numbers.
*/
#define Max(x, y) ((x) > (y) ? (x) : (y))
/*
* Min
* Return the minimum of two numbers.
*/
#define Min(x, y) ((x) < (y) ? (x) : (y))
/* msb for char */
#define HIGHBIT (0x80)
#define IS_HIGHBIT_SET(ch) ((unsigned char)(ch) & HIGHBIT)
/* from include/access/attnum.h */
/*
* user defined attribute numbers start at 1. -ay 2/95
*/
typedef int16 AttrNumber;
/* from include/utils/datetime.h */
/* date and datetime */
#define RESERV 0
#define MONTH 1
#define YEAR 2
#define DAY 3
#define JULIAN 4
#define TZ 5
#define DTZ 6
#define DTZMOD 7
#define IGNORE_DTF 8
#define AMPM 9
#define HOUR 10
#define MINUTE 11
#define SECOND 12
#define DOY 13
#define DOW 14
#define UNITS 15
#define ADBC 16
/* these are only for relative dates */
#define AGO 17
#define ABS_BEFORE 18
#define ABS_AFTER 19
/* generic fields to help with parsing */
#define ISODATE 20
#define ISOTIME 21
/* reserved for unrecognized string values */
#define UNKNOWN_FIELD 31
#define MAX_TIMESTAMP_PRECISION 6
#define MAX_INTERVAL_PRECISION 6
#define INTERVAL_FULL_RANGE (0x7FFF)
#define INTERVAL_RANGE_MASK (0x7FFF)
#define INTERVAL_FULL_PRECISION (0xFFFF)
#define INTERVAL_PRECISION_MASK (0xFFFF)
#define INTERVAL_MASK(b) (1 << (b))
#define INTERVAL_TYPMOD(p,r) ((((r) & INTERVAL_RANGE_MASK) << 16) | ((p) & INTERVAL_PRECISION_MASK))
#define INTERVAL_PRECISION(t) ((t) & INTERVAL_PRECISION_MASK)
#define INTERVAL_RANGE(t) (((t) >> 16) & INTERVAL_RANGE_MASK)
/* from include/storage/lock.h */
/* lock */
/* NoLock is not a lock mode, but a flag value meaning "don't get a lock" */
#define NoLock 0
#define AccessShareLock 1 /* SELECT */
#define RowShareLock 2 /* SELECT FOR UPDATE/FOR SHARE */
#define RowExclusiveLock 3 /* INSERT, UPDATE, DELETE */
#define ShareUpdateExclusiveLock 4 /* VACUUM (non-FULL) */
#define ShareLock 5 /* CREATE INDEX */
#define ShareRowExclusiveLock 6 /* like EXCLUSIVE MODE, but allows ROW
* SHARE */
#define ExclusiveLock 7 /* blocks ROW SHARE/SELECT...FOR UPDATE */
#define AccessExclusiveLock 8 /* ALTER TABLE, DROP TABLE, VACUUM FULL,
* and unqualified LOCK TABLE */
#define DEFAULT_INDEX_TYPE "btree"
#define NUMERIC_MAX_PRECISION 1000
#define VARHDRSZ ((int32) sizeof(int32))
#define MAX_TIME_PRECISION 6
/*
* We require C99, hence the compiler should understand flexible array
* members. However, for documentation purposes we still consider it to be
* project style to write "field[FLEXIBLE_ARRAY_MEMBER]" not just "field[]".
* When computing the size of such an object, use "offsetof(struct s, f)"
* for portability. Don't use "offsetof(struct s, f[0])", as this doesn't
* work with MSVC and with C++ compilers.
*/
#define FLEXIBLE_ARRAY_MEMBER /* empty */
#endif /* POOL_PARSER_H */
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