diff -r 7602d7fb60d9 -r 026da5437111 core/CDataPack.cpp
--- a/core/CDataPack.cpp Fri Jul 11 06:51:21 2008 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,259 +0,0 @@
-/**
- * vim: set ts=4 :
- * =============================================================================
- * SourceMod
- * Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
- * =============================================================================
- *
- * This program is free software; you can redistribute it and/or modify it under
- * the terms of the GNU General Public License, version 3.0, as published by the
- * Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see .
- *
- * As a special exception, AlliedModders LLC gives you permission to link the
- * code of this program (as well as its derivative works) to "Half-Life 2," the
- * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
- * by the Valve Corporation. You must obey the GNU General Public License in
- * all respects for all other code used. Additionally, AlliedModders LLC grants
- * this exception to all derivative works. AlliedModders LLC defines further
- * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
- * or .
- *
- * Version: $Id$
- */
-
-#include
-#include
-#include "CDataPack.h"
-
-#define DATAPACK_INITIAL_SIZE 512
-
-CDataPack::CDataPack()
-{
- m_pBase = (char *)malloc(DATAPACK_INITIAL_SIZE);
- m_capacity = DATAPACK_INITIAL_SIZE;
- Initialize();
-}
-
-CDataPack::~CDataPack()
-{
- free(m_pBase);
-}
-
-void CDataPack::Initialize()
-{
- m_curptr = m_pBase;
- m_size = 0;
-}
-
-void CDataPack::CheckSize(size_t typesize)
-{
- if (m_curptr - m_pBase + typesize <= m_capacity)
- {
- return;
- }
-
- size_t pos = m_curptr - m_pBase;
- do
- {
- m_capacity *= 2;
- m_pBase = (char *)realloc(m_pBase, m_capacity);
- m_curptr = m_pBase + pos;
- } while (m_curptr - m_pBase + typesize > m_capacity);
-}
-
-void CDataPack::ResetSize()
-{
- m_size = 0;
-}
-
-size_t CDataPack::CreateMemory(size_t size, void **addr)
-{
- CheckSize(sizeof(size_t) + size);
- size_t pos = m_curptr - m_pBase;
-
- *(size_t *)m_curptr = size;
- m_curptr += sizeof(size_t);
-
- if (addr)
- {
- *addr = m_curptr;
- }
-
- m_curptr += size;
- m_size += sizeof(size_t) + size;
-
- return pos;
-}
-
-void CDataPack::PackCell(cell_t cell)
-{
- CheckSize(sizeof(size_t) + sizeof(cell_t));
-
- *(size_t *)m_curptr = sizeof(cell_t);
- m_curptr += sizeof(size_t);
-
- *(cell_t *)m_curptr = cell;
- m_curptr += sizeof(cell_t);
-
- m_size += sizeof(size_t) + sizeof(cell_t);
-}
-
-void CDataPack::PackFloat(float val)
-{
- CheckSize(sizeof(size_t) + sizeof(float));
-
- *(size_t *)m_curptr = sizeof(float);
- m_curptr += sizeof(size_t);
-
- *(float *)m_curptr = val;
- m_curptr += sizeof(float);
-
- m_size += sizeof(size_t) + sizeof(float);
-}
-
-void CDataPack::PackString(const char *string)
-{
- size_t len = strlen(string);
- size_t maxsize = sizeof(size_t) + len + 1;
- CheckSize(maxsize);
-
- // Pack the string length first for buffer overrun checking.
- *(size_t *)m_curptr = len;
- m_curptr += sizeof(size_t);
-
- // Now pack the string.
- memcpy(m_curptr, string, len);
- m_curptr[len] = '\0';
- m_curptr += len + 1;
-
- m_size += maxsize;
-}
-
-void CDataPack::Reset() const
-{
- m_curptr = m_pBase;
-}
-
-size_t CDataPack::GetPosition() const
-{
- return static_cast(m_curptr - m_pBase);
-}
-
-bool CDataPack::SetPosition(size_t pos) const
-{
- if (pos > m_size-1)
- {
- return false;
- }
- m_curptr = m_pBase + pos;
-
- return true;
-}
-
-cell_t CDataPack::ReadCell() const
-{
- if (!IsReadable(sizeof(size_t) + sizeof(cell_t)))
- {
- return 0;
- }
- if (*reinterpret_cast(m_curptr) != sizeof(cell_t))
- {
- return 0;
- }
-
- m_curptr += sizeof(size_t);
-
- cell_t val = *reinterpret_cast(m_curptr);
- m_curptr += sizeof(cell_t);
- return val;
-}
-
-float CDataPack::ReadFloat() const
-{
- if (!IsReadable(sizeof(size_t) + sizeof(float)))
- {
- return 0;
- }
- if (*reinterpret_cast(m_curptr) != sizeof(float))
- {
- return 0;
- }
-
- m_curptr += sizeof(size_t);
-
- float val = *reinterpret_cast(m_curptr);
- m_curptr += sizeof(float);
- return val;
-}
-
-bool CDataPack::IsReadable(size_t bytes) const
-{
- return (bytes + (m_curptr - m_pBase) > m_size) ? false : true;
-}
-
-const char *CDataPack::ReadString(size_t *len) const
-{
- if (!IsReadable(sizeof(size_t)))
- {
- return NULL;
- }
-
- size_t real_len = *(size_t *)m_curptr;
-
- m_curptr += sizeof(size_t);
- char *str = (char *)m_curptr;
-
- if ((strlen(str) != real_len) || !(IsReadable(real_len+1)))
- {
- return NULL;
- }
-
- if (len)
- {
- *len = real_len;
- }
-
- m_curptr += real_len + 1;
-
- return str;
-}
-
-void *CDataPack::GetMemory() const
-{
- return m_curptr;
-}
-
-void *CDataPack::ReadMemory(size_t *size) const
-{
- if (!IsReadable(sizeof(size_t)))
- {
- return NULL;
- }
-
- size_t bytecount = *(size_t *)m_curptr;
- m_curptr += sizeof(size_t);
-
- if (!IsReadable(bytecount))
- {
- return NULL;
- }
-
- void *ptr = m_curptr;
-
- if (size)
- {
- *size = bytecount;
- }
-
- m_curptr += bytecount;
-
- return ptr;
-}