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/*
* debversion: PostgreSQL functions for debversion type
* Copyright © 2009,2011 Roger Leigh <rleigh@debian.org>
* schroot is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* schroot is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*
*********************************************************************/
#include <apt-pkg/debversion.h>
extern "C"
{
#include <postgres.h>
#include <fmgr.h>
#include <access/hash.h>
#include <utils/builtins.h>
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC;
#endif
extern Datum debversion_cmp (PG_FUNCTION_ARGS);
extern Datum debversion_hash (PG_FUNCTION_ARGS);
extern Datum debversion_eq (PG_FUNCTION_ARGS);
extern Datum debversion_ne (PG_FUNCTION_ARGS);
extern Datum debversion_gt (PG_FUNCTION_ARGS);
extern Datum debversion_ge (PG_FUNCTION_ARGS);
extern Datum debversion_lt (PG_FUNCTION_ARGS);
extern Datum debversion_le (PG_FUNCTION_ARGS);
extern Datum debversion_smaller (PG_FUNCTION_ARGS);
extern Datum debversion_larger (PG_FUNCTION_ARGS);
}
namespace
{
int32
debversioncmp (text *left,
text *right)
{
int32 result;
char *lstr, *rstr;
lstr = text_to_cstring(left);
rstr = text_to_cstring(right);
result = debVS.CmpVersion (lstr, rstr);
pfree (lstr);
pfree (rstr);
return (result);
}
}
extern "C"
{
PG_FUNCTION_INFO_V1(debversion_cmp);
Datum
debversion_cmp(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
int32 result;
result = debversioncmp(left, right);
PG_FREE_IF_COPY(left, 0);
PG_FREE_IF_COPY(right, 1);
PG_RETURN_INT32(result);
}
PG_FUNCTION_INFO_V1(debversion_hash);
Datum
debversion_hash(PG_FUNCTION_ARGS)
{
text *txt = PG_GETARG_TEXT_PP(0);
char *str;
Datum result;
str = text_to_cstring(txt);
result = hash_any((unsigned char *) str, strlen(str));
pfree(str);
PG_FREE_IF_COPY(txt, 0);
PG_RETURN_DATUM(result);
}
PG_FUNCTION_INFO_V1(debversion_eq);
Datum
debversion_eq(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
bool result;
result = debversioncmp(left, right) == 0;
PG_FREE_IF_COPY(left, 0);
PG_FREE_IF_COPY(right, 1);
PG_RETURN_BOOL(result);
}
PG_FUNCTION_INFO_V1(debversion_ne);
Datum
debversion_ne(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
bool result;
result = debversioncmp(left, right) != 0;
PG_FREE_IF_COPY(left, 0);
PG_FREE_IF_COPY(right, 1);
PG_RETURN_BOOL(result);
}
PG_FUNCTION_INFO_V1(debversion_lt);
Datum
debversion_lt(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
bool result;
result = debversioncmp(left, right) < 0;
PG_FREE_IF_COPY(left, 0);
PG_FREE_IF_COPY(right, 1);
PG_RETURN_BOOL(result);
}
PG_FUNCTION_INFO_V1(debversion_le);
Datum
debversion_le(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
bool result;
result = debversioncmp(left, right) <= 0;
PG_FREE_IF_COPY(left, 0);
PG_FREE_IF_COPY(right, 1);
PG_RETURN_BOOL(result);
}
PG_FUNCTION_INFO_V1(debversion_gt);
Datum
debversion_gt(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
bool result;
result = debversioncmp(left, right) > 0;
PG_FREE_IF_COPY(left, 0);
PG_FREE_IF_COPY(right, 1);
PG_RETURN_BOOL(result);
}
PG_FUNCTION_INFO_V1(debversion_ge);
Datum
debversion_ge(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
bool result;
result = debversioncmp(left, right) >= 0;
PG_FREE_IF_COPY(left, 0);
PG_FREE_IF_COPY(right, 1);
PG_RETURN_BOOL(result);
}
PG_FUNCTION_INFO_V1(debversion_smaller);
Datum
debversion_smaller(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
text *result;
result = debversioncmp(left, right) < 0 ? left : right;
PG_RETURN_TEXT_P(result);
}
PG_FUNCTION_INFO_V1(debversion_larger);
Datum
debversion_larger(PG_FUNCTION_ARGS)
{
text *left = PG_GETARG_TEXT_PP(0);
text *right = PG_GETARG_TEXT_PP(1);
text *result;
result = debversioncmp(left, right) > 0 ? left : right;
PG_RETURN_TEXT_P(result);
}
}
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