mirror of
https://github.com/electronicarts/CnC_Remastered_Collection
synced 2024-04-27 00:43:00 +12:00
03416d24e1
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
139 lines
8.4 KiB
C++
139 lines
8.4 KiB
C++
//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/* $Header: /CounterStrike/STRAW.CPP 1 3/03/97 10:25a Joe_bostic $ */
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : Command & Conquer *
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* *
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* File Name : STRAW.CPP *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : 07/02/96 *
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* *
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* Last Update : July 3, 1996 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* Straw::Get_From -- Connect one straw segment to another. *
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* Straw::Get -- Fetch some data from the straw chain. *
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* Straw::~Straw -- Destructor for a straw segment. *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "straw.h"
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#include <stddef.h>
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#include <string.h>
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/***********************************************************************************************
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* Straw::~Straw -- Destructor for a straw segment. *
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* *
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* This destructor will remove this segment from the straw chain. If there were any *
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* connected segments to either side, they will be joined so that the straw chain will *
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* still remain linked. *
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* *
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* INPUT: none *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 07/03/1996 JLB : Created. *
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*=============================================================================================*/
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Straw::~Straw(void)
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{
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if (ChainTo != NULL) {
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ChainTo->ChainFrom = ChainFrom;
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}
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if (ChainFrom != NULL) {
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ChainFrom->Get_From(ChainTo);
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}
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ChainFrom = NULL;
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ChainTo = NULL;
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}
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/***********************************************************************************************
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* Straw::Get_From -- Connect one straw segment to another. *
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* *
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* Use this routine to connect straw segments together. The straw segment specified as the *
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* parameter will be linked to the chain such that when data is requested, it will be *
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* fetched from the specified link before being processed by this link. *
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* *
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* INPUT: straw -- Pointer to the straw segment that data will be fetched from. *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 07/03/1996 JLB : Created. *
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*=============================================================================================*/
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void Straw::Get_From(Straw * straw)
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{
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if (ChainTo != straw) {
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if (straw != NULL && straw->ChainFrom != NULL) {
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straw->ChainFrom->Get_From(NULL);
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straw->ChainFrom = NULL;
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}
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if (ChainTo != NULL) {
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ChainTo->ChainFrom = NULL;
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}
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ChainTo = straw;
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if (ChainTo != NULL) {
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ChainTo->ChainFrom = this;
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}
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}
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}
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/***********************************************************************************************
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* Straw::Get -- Fetch some data from the straw chain. *
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* *
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* Use this routine to fetch some data from the straw. It is presumed that this routine *
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* will be overridden to provide some useful functionality. At this level, the straw chain *
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* merely passes the request on to the next straw in the chain. *
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* *
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* INPUT: source -- Pointer to the buffer to hold the requested data. *
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* *
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* length -- The number of bytes requested. *
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* *
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* OUTPUT: Returns with the number of bytes stored into the buffer. If the number returned *
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* is less than the number requested, then this indicates that the straw data has *
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* been exhausted. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 07/03/1996 JLB : Created. *
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*=============================================================================================*/
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int Straw::Get(void * source, int slen)
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{
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if (ChainTo != NULL) {
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return(ChainTo->Get(source, slen));
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}
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return(0);
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}
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