e7c3d04309
format all files Revert "format all files" This reverts commit 95d5812e49e7f916b68e786596f5a8eb5bcac414. Revert "format some files" This reverts commit ed3c8762d4d828b2b28e7b18809fc33f4f8ccaf5. format all files fix formatting in dir include fix formatting of debug macro
121 lines
3.4 KiB
C++
121 lines
3.4 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2021 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef POSTGIS_RESULTSET_HPP
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#define POSTGIS_RESULTSET_HPP
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extern "C" {
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#include "libpq-fe.h"
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}
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class IResultSet
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{
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public:
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// virtual IResultSet& operator=(const IResultSet& rhs) = 0;
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virtual ~IResultSet() {}
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virtual void close() = 0;
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virtual int getNumFields() const = 0;
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virtual bool next() = 0;
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virtual const char* getFieldName(int index) const = 0;
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virtual int getFieldLength(int index) const = 0;
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virtual int getFieldLength(const char* name) const = 0;
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virtual int getTypeOID(int index) const = 0;
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virtual int getTypeOID(const char* name) const = 0;
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virtual bool isNull(int index) const = 0;
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virtual const char* getValue(int index) const = 0;
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virtual const char* getValue(const char* name) const = 0;
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};
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class ResultSet : public IResultSet,
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private mapnik::util::noncopyable
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{
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public:
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ResultSet(PGresult* res)
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: res_(res)
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, pos_(-1)
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{
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numTuples_ = PQntuples(res_);
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}
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virtual void close()
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{
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PQclear(res_);
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res_ = 0;
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}
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virtual ~ResultSet() { PQclear(res_); }
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virtual int getNumFields() const { return PQnfields(res_); }
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int pos() const { return pos_; }
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int size() const { return numTuples_; }
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virtual bool next() { return (++pos_ < numTuples_); }
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virtual const char* getFieldName(int index) const { return PQfname(res_, index); }
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virtual int getFieldLength(int index) const { return PQgetlength(res_, pos_, index); }
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virtual int getFieldLength(const char* name) const
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{
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int col = PQfnumber(res_, name);
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if (col >= 0)
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{
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return PQgetlength(res_, pos_, col);
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}
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return 0;
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}
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virtual int getTypeOID(int index) const { return PQftype(res_, index); }
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virtual int getTypeOID(const char* name) const
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{
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int col = PQfnumber(res_, name);
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if (col >= 0)
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{
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return PQftype(res_, col);
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}
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return 0;
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}
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virtual bool isNull(int index) const { return static_cast<bool>(PQgetisnull(res_, pos_, index)); }
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virtual const char* getValue(int index) const { return PQgetvalue(res_, pos_, index); }
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virtual const char* getValue(const char* name) const
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{
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int col = PQfnumber(res_, name);
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if (col >= 0)
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{
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return getValue(col);
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}
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return 0;
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}
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private:
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PGresult* res_;
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int pos_;
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int numTuples_;
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};
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#endif // POSTGIS_RESULTSET_HPP
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