database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00
Code Activity

Binary send/receive routines for a few basic datatypes --- enough for

Browse Source 
testing purposes.
This commit is contained in:
Tom Lane
2003-05-09 15:44:42 +00:00
parent 4207d6bf30
commit 5ecd4e3f30
13 changed files with 691 additions and 184 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
src/backend/utils/adt/int8.c
View File

@ -7,36 +7,21 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/int8.c,v 1.43 2003/03/11 21:01:33 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/int8.c,v 1.44 2003/05/09 15:44:40 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include <ctype.h>
#include <time.h>
#include <math.h>
#include <float.h>
#include <limits.h>
#include "libpq/pqformat.h"
#include "utils/int8.h"
#define MAXINT8LEN 25
#ifndef INT_MAX
#define INT_MAX (0x7FFFFFFFL)
#endif
#ifndef INT_MIN
#define INT_MIN (-INT_MAX-1)
#endif
#ifndef SHRT_MAX
#define SHRT_MAX (0x7FFF)
#endif
#ifndef SHRT_MIN
#define SHRT_MIN (-SHRT_MAX-1)
#endif
/***********************************************************************
**
@ -160,6 +145,31 @@ int8out(PG_FUNCTION_ARGS)
PG_RETURN_CSTRING(result);
}
/*
* int8recv - converts external binary format to int8
*/
Datum
int8recv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_INT64(pq_getmsgint64(buf));
}
/*
* int8send - converts int8 to binary format
*/
Datum
int8send(PG_FUNCTION_ARGS)
{
int64 arg1 = PG_GETARG_INT64(0);
StringInfoData buf;
pq_begintypsend(&buf);
pq_sendint64(&buf, arg1);
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
/*----------------------------------------------------------
* Relational operators for int8s, including cross-data-type comparisons.