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

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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
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92
src/backend/utils/adt/int.c
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@ -8,14 +8,16 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/int.c,v 1.53 2003/03/11 21:01:33 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/int.c,v 1.54 2003/05/09 15:44:40 tgl Exp $
*
*-------------------------------------------------------------------------
*/
/*
* OLD COMMENTS
* I/O routines:
* int2in, int2out, int2vectorin, int2vectorout, int4in, int4out
* int2in, int2out, int2recv, int2send
* int4in, int4out, int4recv, int4send
* int2vectorin, int2vectorout, int2vectorrecv, int2vectorsend
* Conversion routines:
* itoi, int2_text, int4_text
* Boolean operators:
@ -32,6 +34,7 @@
#include <ctype.h>
#include <limits.h>
#include "libpq/pqformat.h"
#include "utils/builtins.h"
#ifndef SHRT_MAX
@ -69,6 +72,31 @@ int2out(PG_FUNCTION_ARGS)
PG_RETURN_CSTRING(result);
}
/*
* int2recv - converts external binary format to int2
*/
Datum
int2recv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_INT16((int16) pq_getmsgint(buf, sizeof(int16)));
}
/*
* int2send - converts int2 to binary format
*/
Datum
int2send(PG_FUNCTION_ARGS)
{
int16 arg1 = PG_GETARG_INT16(0);
StringInfoData buf;
pq_begintypsend(&buf);
pq_sendint(&buf, arg1, sizeof(int16));
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
/*
* int2vectorin - converts "num num ..." to internal form
*
@ -131,6 +159,41 @@ int2vectorout(PG_FUNCTION_ARGS)
PG_RETURN_CSTRING(result);
}
/*
* int2vectorrecv - converts external binary format to int2vector
*/
Datum
int2vectorrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
int16 *result = (int16 *) palloc(sizeof(int16[INDEX_MAX_KEYS]));
int slot;
for (slot = 0; slot < INDEX_MAX_KEYS; slot++)
{
result[slot] = (int16) pq_getmsgint(buf, sizeof(int16));
}
PG_RETURN_POINTER(result);
}
/*
* int2vectorsend - converts int2vector to binary format
*/
Datum
int2vectorsend(PG_FUNCTION_ARGS)
{
int16 *int2Array = (int16 *) PG_GETARG_POINTER(0);
StringInfoData buf;
int slot;
pq_begintypsend(&buf);
for (slot = 0; slot < INDEX_MAX_KEYS; slot++)
{
pq_sendint(&buf, int2Array[slot], sizeof(int16));
}
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
/*
* We don't have a complete set of int2vector support routines,
* but we need int2vectoreq for catcache indexing.
@ -173,6 +236,31 @@ int4out(PG_FUNCTION_ARGS)
PG_RETURN_CSTRING(result);
}
/*
* int4recv - converts external binary format to int4
*/
Datum
int4recv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_INT32((int32) pq_getmsgint(buf, sizeof(int32)));
}
/*
* int4send - converts int4 to binary format
*/
Datum
int4send(PG_FUNCTION_ARGS)
{
int32 arg1 = PG_GETARG_INT32(0);
StringInfoData buf;
pq_begintypsend(&buf);
pq_sendint(&buf, arg1, sizeof(int32));
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
/*
* ===================