mirror of
https://github.com/yquake2/yquake2remaster.git
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102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
/*
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* Copyright (C) 1997-2001 Id Software, 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 2 of the License, or (at
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* 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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* =======================================================================
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*
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* Server zone, server side of memory management
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*
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* =======================================================================
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*/
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#include "header/common.h"
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void
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SZ_Init(sizebuf_t *buf, byte *data, int length)
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{
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memset(buf, 0, sizeof(*buf));
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buf->data = data;
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buf->maxsize = length;
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}
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void
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SZ_Clear(sizebuf_t *buf)
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{
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buf->cursize = 0;
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buf->overflowed = false;
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}
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void *
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SZ_GetSpace(sizebuf_t *buf, int length)
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{
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void *data;
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if (buf->cursize + length > buf->maxsize)
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{
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if (!buf->allowoverflow)
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{
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Com_Error(ERR_FATAL, "SZ_GetSpace: overflow without allowoverflow set");
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}
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if (length > buf->maxsize)
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{
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Com_Error(ERR_FATAL, "SZ_GetSpace: %i is > full buffer size",
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length);
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}
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SZ_Clear(buf);
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buf->overflowed = true;
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Com_Printf("SZ_GetSpace: overflow\n");
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}
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data = buf->data + buf->cursize;
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buf->cursize += length;
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return data;
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}
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void
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SZ_Write(sizebuf_t *buf, void *data, int length)
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{
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memcpy(SZ_GetSpace(buf, length), data, length);
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}
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void
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SZ_Print(sizebuf_t *buf, char *data)
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{
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int len;
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len = (int)strlen(data) + 1;
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if (buf->cursize)
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{
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if (buf->data[buf->cursize - 1])
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{
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memcpy((byte *)SZ_GetSpace(buf, len), data, len); /* no trailing 0 */
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}
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else
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{
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memcpy((byte *)SZ_GetSpace(buf, len - 1) - 1, data, len); /* write over trailing 0 */
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}
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}
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else
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{
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memcpy((byte *)SZ_GetSpace(buf, len), data, len);
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}
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}
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