127 lines
2.6 KiB
C++
127 lines
2.6 KiB
C++
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/*
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** Command & Conquer Red Alert(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program 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
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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extern "C" {
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#include "lpc.h"
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#include "types.h"
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#include "services.h"
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#include "rtq.h"
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#include <stdio.h>
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#include <mem.h>
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};
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#include "mplib.h"
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#define IDLE_QUEUE 6
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#define REC_QUEUE 7
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#define SEND_QUEUE 8
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void
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SetLPCData(LPCData *lpc)
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{
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lpc->version = 1;
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lpc->sizeOfArgs = 0;
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lpc->service = LPC_NOSERVICE;
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}
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void
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GetGameDef(void *gameDef, int* len)
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{
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RTQ_NODE *n = MGenGetNode(IDLE_QUEUE);
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LPCData *p;
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LPCReturn *r;
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if (!n) {
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*len = 0;
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return; // can't get service!
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}
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p = (LPCData *) n->rtqDatum;
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SetLPCData(p);
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p->service = LPC_GENGETGAMEDEF;
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MGenMoveTo(IDLE_QUEUE, SEND_QUEUE);
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// make call
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PostWindowsMessage();
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// wait for return
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while ((n = MGenGetNode(REC_QUEUE)) == 0)
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Yield();
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r = (LPCReturn *) n->rtqDatum;
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if (r->sizeOfReturn > *len || r->error != LPC_NOERROR) {
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*len = 0;
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return;
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}
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*len = r->sizeOfReturn;
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memcpy(gameDef, r->Data, r->sizeOfReturn);
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// get ready for next call
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MGenMoveTo(REC_QUEUE, IDLE_QUEUE);
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}
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int
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LPCGetMPAddr(void)
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{
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RTQ_NODE *n = MGenGetNode(IDLE_QUEUE);
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LPCData *p;
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LPCReturn *r;
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int retVal;
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p = (LPCData *) n->rtqDatum;
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SetLPCData(p);
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p->service = LPC_GETMPADDR;
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MGenMoveTo(IDLE_QUEUE, SEND_QUEUE);
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PostWindowsMessage();
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while ((n = MGenGetNode(REC_QUEUE)) == 0)
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Yield();
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r = (LPCReturn *) n->rtqDatum;
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if (r->sizeOfReturn != sizeof(int) || r->error != LPC_NOERROR) {
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return -1;
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}
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retVal = *((int *) r->Data);
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MGenMoveTo(REC_QUEUE, IDLE_QUEUE);
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return retVal;
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}
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void
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NullLPC(void)
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{
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RTQ_NODE *n = MGenGetNode(IDLE_QUEUE);
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LPCData *p;
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p = (LPCData *) n->rtqDatum;
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SetLPCData(p);
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p->service = LPC_NULLSERVICE;
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MGenMoveTo(IDLE_QUEUE, SEND_QUEUE);
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PostWindowsMessage();
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while ((n = MGenGetNode(REC_QUEUE)) == 0)
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Yield();
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MGenMoveTo(REC_QUEUE, IDLE_QUEUE);
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}
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