X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/8c6fa3fbaccc22127280bf77a48fab5a3ee0716e..46b0747592074017ff0ea4b33d4a7194235886e5:/libs/ibpp/_tpb.cpp

diff --git a/libs/ibpp/_tpb.cpp b/libs/ibpp/_tpb.cpp
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+///////////////////////////////////////////////////////////////////////////////
+//
+//	File    : $Id: _tpb.cpp,v 1.2 2009/03/19 20:00:28 faust Exp $
+//	Subject : IBPP, internal TPB class implementation
+//
+///////////////////////////////////////////////////////////////////////////////
+//
+//	(C) Copyright 2000-2006 T.I.P. Group S.A. and the IBPP Team (www.ibpp.org)
+//
+//	The contents of this file are subject to the IBPP License (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.ibpp.org or in the 'license.txt'
+//	file which must have been distributed along with this file.
+//
+//	This software, distributed under the License, is distributed on an "AS IS"
+//	basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+//	License for the specific language governing rights and limitations
+//	under the License.
+//
+///////////////////////////////////////////////////////////////////////////////
+//
+//	COMMENTS
+//	* TPB == Transaction Parameter Block/Buffer, see Interbase 6.0 C-API
+//	* Tabulations should be set every four characters when editing this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifdef _MSC_VER
+#pragma warning(disable: 4786 4996)
+#ifndef _DEBUG
+#pragma warning(disable: 4702)
+#endif
+#endif
+
+#include "_ibpp.h"
+
+#ifdef HAS_HDRSTOP
+#pragma hdrstop
+#endif
+
+#include <cstring>
+
+using namespace ibpp_internals;
+
+const int TPB::BUFFERINCR = 128;
+
+void TPB::Grow(int needed)
+{
+	if (mBuffer == 0) ++needed;	// Initial alloc will require one more byte
+	if ((mSize + needed) > mAlloc)
+	{
+		// We need to grow the buffer. We use increments of BUFFERINCR bytes.
+		needed = (needed / BUFFERINCR + 1) * BUFFERINCR;
+		char* newbuffer = new char[mAlloc + needed];
+		if (mBuffer == 0)
+		{
+			// Initial allocation, initialize the version tag
+			newbuffer[0] = isc_tpb_version3;
+			mSize = 1;
+		}
+		else
+		{
+			// Move the old buffer content to the new one
+			memcpy(newbuffer, mBuffer, mSize);
+			delete [] mBuffer;
+		}
+		mBuffer = newbuffer;
+		mAlloc += needed;
+	}
+}
+
+void TPB::Insert(char item)
+{
+	Grow(1);
+	mBuffer[mSize++] = item;
+}
+
+void TPB::Insert(const std::string& data)
+{
+	int len = (int)data.length();
+	Grow(1 + len);
+	mBuffer[mSize++] = (char)len;
+	strncpy(&mBuffer[mSize], data.c_str(), len);
+	mSize += len;
+}
+
+void TPB::Reset()
+{
+	if (mSize != 0)
+	{
+		delete [] mBuffer;
+		mBuffer = 0;
+		mSize = 0;
+		mAlloc = 0;
+	}
+}
+
+//
+//	EOF
+//