BlobUtil.h

/*
 * The contents of this file are subject to the Initial
 * Developer's Public License Version 1.0 (the "License");
 * you may not use this file except in compliance with the
 * License. You may obtain a copy of the License at
 * http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
 *
 * Software distributed under the License is distributed AS IS,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied.
 * See the License for the specific language governing rights
 * and limitations under the License.
 *
 * The Original Code was created by Adriano dos Santos Fernandes
 * for the Firebird Open Source RDBMS project.
 *
 * Copyright (c) 2020 Adriano dos Santos Fernandes <adrianosf@gmail.com>
 * and all contributors signed below.
 *
 * All Rights Reserved.
 * Contributor(s): ______________________________________.
*/

#ifndef JRD_BLOB_UTIL_H
#defineJRD_BLOB_UTIL_H

#include"firebird.h"
#include"firebird/Message.h"
#include"../common/classes/fb_string.h"
#include"../common/classes/ImplementHelper.h"
#include"../common/status.h"
#include"../jrd/SystemPackages.h"

namespaceJrd {


classBlobUtilPackage : publicSystemPackage
{
public:
BlobUtilPackage(Firebird::MemoryPool& pool);

private:
FB_MESSAGE(BinaryMessage, Firebird::ThrowStatusExceptionWrapper,
 (FB_INTL_VARCHAR(MAX_VARY_COLUMN_SIZE, 0), data)
 );

FB_MESSAGE(BlobMessage, Firebird::ThrowStatusExceptionWrapper,
 (FB_BLOB, blob)
 );

FB_MESSAGE(HandleMessage, Firebird::ThrowStatusExceptionWrapper,
 (FB_INTEGER, handle)
 );

FB_MESSAGE(BooleanMessage, Firebird::ThrowStatusExceptionWrapper,
 (FB_BOOLEAN, boolean)
 );

//----------

static Firebird::IExternalResultSet* cancelBlobProcedure(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context, const BlobMessage::Type* in, void* out);

//----------

static Firebird::IExternalResultSet* closeHandleProcedure(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context, const HandleMessage::Type* in, void* out);

//----------

staticvoidisWritableFunction(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context,
const BlobMessage::Type* in, BooleanMessage::Type* out);

//----------

FB_MESSAGE(NewBlobInput, Firebird::ThrowStatusExceptionWrapper,
 (FB_BOOLEAN, segmented)
 (FB_BOOLEAN, tempStorage)
 );

staticvoidnewBlobFunction(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context,
const NewBlobInput::Type* in, BlobMessage::Type* out);

//----------

staticvoidopenBlobFunction(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context,
const BlobMessage::Type* in, HandleMessage::Type* out);

//----------

FB_MESSAGE(SeekInput, Firebird::ThrowStatusExceptionWrapper,
 (FB_INTEGER, handle)
 (FB_INTEGER, mode)
 (FB_INTEGER, offset)
 );

FB_MESSAGE(SeekOutput, Firebird::ThrowStatusExceptionWrapper,
 (FB_INTEGER, offset)
 );

staticvoidseekFunction(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context, const SeekInput::Type* in, SeekOutput::Type* out);

//----------

FB_MESSAGE(ReadDataInput, Firebird::ThrowStatusExceptionWrapper,
 (FB_INTEGER, handle)
 (FB_INTEGER, length)
 );

staticvoidreadDataFunction(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context,
const ReadDataInput::Type* in, BinaryMessage::Type* out);

//----------

staticvoidmakeBlobFunction(Firebird::ThrowStatusExceptionWrapper* status,
 Firebird::IExternalContext* context,
const HandleMessage::Type* in, BlobMessage::Type* out);
};


} // namespace

#endif// JRD_BLOB_UTIL_H