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authorNeo2003 <none@none>2008-10-02 16:23:55 -0500
committerNeo2003 <none@none>2008-10-02 16:23:55 -0500
commit9b1c0e006f20091f28f3f468cfcab1feb51286bd (patch)
treeb5d1ba94a656e6679f8737f9ea6bed1239b73b14 /src/shared/ByteBuffer.h
[svn] * Proper SVN structureinit
--HG-- branch : trunk
Diffstat (limited to 'src/shared/ByteBuffer.h')
-rw-r--r--src/shared/ByteBuffer.h479
1 files changed, 479 insertions, 0 deletions
diff --git a/src/shared/ByteBuffer.h b/src/shared/ByteBuffer.h
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+++ b/src/shared/ByteBuffer.h
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+/*
+ * Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _BYTEBUFFER_H
+#define _BYTEBUFFER_H
+
+#include "Common.h"
+#include "Errors.h"
+#include "Log.h"
+#include "Utilities/ByteConverter.h"
+
+class ByteBuffer
+{
+ public:
+ const static size_t DEFAULT_SIZE = 0x1000;
+
+ // constructor
+ ByteBuffer(): _rpos(0), _wpos(0)
+ {
+ _storage.reserve(DEFAULT_SIZE);
+ }
+ // constructor
+ ByteBuffer(size_t res): _rpos(0), _wpos(0)
+ {
+ _storage.reserve(res);
+ }
+ // copy constructor
+ ByteBuffer(const ByteBuffer &buf): _rpos(buf._rpos), _wpos(buf._wpos), _storage(buf._storage) { }
+
+ void clear()
+ {
+ _storage.clear();
+ _rpos = _wpos = 0;
+ }
+
+ template <typename T> void append(T value)
+ {
+ EndianConvert(value);
+ append((uint8 *)&value, sizeof(value));
+ }
+
+ template <typename T> void put(size_t pos,T value)
+ {
+ EndianConvert(value);
+ put(pos,(uint8 *)&value,sizeof(value));
+ }
+
+ ByteBuffer &operator<<(uint8 value)
+ {
+ append<uint8>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(uint16 value)
+ {
+ append<uint16>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(uint32 value)
+ {
+ append<uint32>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(uint64 value)
+ {
+ append<uint64>(value);
+ return *this;
+ }
+
+ // signed as in 2e complement
+ ByteBuffer &operator<<(int8 value)
+ {
+ append<int8>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(int16 value)
+ {
+ append<int16>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(int32 value)
+ {
+ append<int32>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(int64 value)
+ {
+ append<int64>(value);
+ return *this;
+ }
+
+ // floating points
+ ByteBuffer &operator<<(float value)
+ {
+ append<float>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(double value)
+ {
+ append<double>(value);
+ return *this;
+ }
+ ByteBuffer &operator<<(const std::string &value)
+ {
+ append((uint8 const *)value.c_str(), value.length());
+ append((uint8)0);
+ return *this;
+ }
+ ByteBuffer &operator<<(const char *str)
+ {
+ append((uint8 const *)str, str ? strlen(str) : 0);
+ append((uint8)0);
+ return *this;
+ }
+
+ ByteBuffer &operator>>(bool &value)
+ {
+ value = read<char>() > 0 ? true : false;
+ return *this;
+ }
+
+ ByteBuffer &operator>>(uint8 &value)
+ {
+ value = read<uint8>();
+ return *this;
+ }
+ ByteBuffer &operator>>(uint16 &value)
+ {
+ value = read<uint16>();
+ return *this;
+ }
+ ByteBuffer &operator>>(uint32 &value)
+ {
+ value = read<uint32>();
+ return *this;
+ }
+ ByteBuffer &operator>>(uint64 &value)
+ {
+ value = read<uint64>();
+ return *this;
+ }
+
+ //signed as in 2e complement
+ ByteBuffer &operator>>(int8 &value)
+ {
+ value = read<int8>();
+ return *this;
+ }
+ ByteBuffer &operator>>(int16 &value)
+ {
+ value = read<int16>();
+ return *this;
+ }
+ ByteBuffer &operator>>(int32 &value)
+ {
+ value = read<int32>();
+ return *this;
+ }
+ ByteBuffer &operator>>(int64 &value)
+ {
+ value = read<int64>();
+ return *this;
+ }
+
+ ByteBuffer &operator>>(float &value)
+ {
+ value = read<float>();
+ return *this;
+ }
+ ByteBuffer &operator>>(double &value)
+ {
+ value = read<double>();
+ return *this;
+ }
+ ByteBuffer &operator>>(std::string& value)
+ {
+ value.clear();
+ while (rpos() < size()) // prevent crash at wrong string format in packet
+ {
+ char c=read<char>();
+ if (c==0)
+ break;
+ value+=c;
+ }
+ return *this;
+ }
+
+ uint8 operator[](size_t pos)
+ {
+ return read<uint8>(pos);
+ }
+
+ size_t rpos() const { return _rpos; }
+
+ size_t rpos(size_t rpos_)
+ {
+ _rpos = rpos_;
+ return _rpos;
+ };
+
+ size_t wpos() const { return _wpos; }
+
+ size_t wpos(size_t wpos_)
+ {
+ _wpos = wpos_;
+ return _wpos;
+ }
+
+ template <typename T> T read()
+ {
+ T r=read<T>(_rpos);
+ _rpos += sizeof(T);
+ return r;
+ };
+ template <typename T> T read(size_t pos) const
+ {
+ ASSERT(pos + sizeof(T) <= size() || PrintPosError(false,pos,sizeof(T)));
+ T val = *((T const*)&_storage[pos]);
+ EndianConvert(val);
+ return val;
+ }
+
+ void read(uint8 *dest, size_t len)
+ {
+ ASSERT(_rpos + len <= size() || PrintPosError(false,_rpos,len));
+ memcpy(dest, &_storage[_rpos], len);
+ _rpos += len;
+ }
+
+ const uint8 *contents() const { return &_storage[0]; }
+
+ size_t size() const { return _storage.size(); }
+ bool empty() const { return _storage.empty(); }
+
+ void resize(size_t newsize)
+ {
+ _storage.resize(newsize);
+ _rpos = 0;
+ _wpos = size();
+ };
+ void reserve(size_t ressize)
+ {
+ if (ressize > size()) _storage.reserve(ressize);
+ };
+
+ void append(const std::string& str)
+ {
+ append((uint8 const*)str.c_str(),str.size() + 1);
+ }
+ void append(const char *src, size_t cnt)
+ {
+ return append((const uint8 *)src, cnt);
+ }
+ template<class T>
+ void append(const T *src, size_t cnt)
+ {
+ return append((const uint8 *)src, cnt*sizeof(T));
+ }
+ void append(const uint8 *src, size_t cnt)
+ {
+ if (!cnt) return;
+
+ ASSERT(size() < 10000000);
+
+ if (_storage.size() < _wpos + cnt)
+ _storage.resize(_wpos + cnt);
+ memcpy(&_storage[_wpos], src, cnt);
+ _wpos += cnt;
+ }
+ void append(const ByteBuffer& buffer)
+ {
+ if(buffer.size()) append(buffer.contents(),buffer.size());
+ }
+
+ void appendPackGUID(uint64 guid)
+ {
+ size_t mask_position = wpos();
+ *this << uint8(0);
+ for(uint8 i = 0; i < 8; i++)
+ {
+ if(guid & 0xFF)
+ {
+ _storage[mask_position] |= uint8(1<<i);
+ *this << uint8(guid & 0xFF);
+ }
+
+ guid >>= 8;
+ }
+ }
+
+ void put(size_t pos, const uint8 *src, size_t cnt)
+ {
+ ASSERT(pos + cnt <= size() || PrintPosError(true,pos,cnt));
+ memcpy(&_storage[pos], src, cnt);
+ }
+ void print_storage()
+ {
+ if(!sLog.IsOutDebug()) // optimize disabled debug output
+ return;
+
+ sLog.outDebug("STORAGE_SIZE: %u", size() );
+ for(uint32 i = 0; i < size(); i++)
+ sLog.outDebugInLine("%u - ", read<uint8>(i) );
+ sLog.outDebug(" ");
+ }
+
+ void textlike()
+ {
+ if(!sLog.IsOutDebug()) // optimize disabled debug output
+ return;
+
+ sLog.outDebug("STORAGE_SIZE: %u", size() );
+ for(uint32 i = 0; i < size(); i++)
+ sLog.outDebugInLine("%c", read<uint8>(i) );
+ sLog.outDebug(" ");
+ }
+
+ void hexlike()
+ {
+ if(!sLog.IsOutDebug()) // optimize disabled debug output
+ return;
+
+ uint32 j = 1, k = 1;
+ sLog.outDebug("STORAGE_SIZE: %u", size() );
+
+ if(sLog.IsIncludeTime())
+ sLog.outDebugInLine(" ");
+
+ for(uint32 i = 0; i < size(); i++)
+ {
+ if ((i == (j*8)) && ((i != (k*16))))
+ {
+ if (read<uint8>(i) < 0x0F)
+ {
+ sLog.outDebugInLine("| 0%X ", read<uint8>(i) );
+ }
+ else
+ {
+ sLog.outDebugInLine("| %X ", read<uint8>(i) );
+ }
+ ++j;
+ }
+ else if (i == (k*16))
+ {
+ if (read<uint8>(i) < 0x0F)
+ {
+ sLog.outDebugInLine("\n");
+ if(sLog.IsIncludeTime())
+ sLog.outDebugInLine(" ");
+
+ sLog.outDebugInLine("0%X ", read<uint8>(i) );
+ }
+ else
+ {
+ sLog.outDebugInLine("\n");
+ if(sLog.IsIncludeTime())
+ sLog.outDebugInLine(" ");
+
+ sLog.outDebugInLine("%X ", read<uint8>(i) );
+ }
+
+ ++k;
+ ++j;
+ }
+ else
+ {
+ if (read<uint8>(i) < 0x0F)
+ {
+ sLog.outDebugInLine("0%X ", read<uint8>(i) );
+ }
+ else
+ {
+ sLog.outDebugInLine("%X ", read<uint8>(i) );
+ }
+ }
+ }
+ sLog.outDebugInLine("\n");
+ }
+
+ protected:
+ bool PrintPosError(bool add, size_t pos, size_t esize) const
+ {
+ sLog.outError("ERROR: Attempt %s in ByteBuffer (pos: %u size: %u) value with size: %u",(add ? "put" : "get"),pos, size(), esize);
+
+ // assert must fail after function call
+ return false;
+ }
+
+ size_t _rpos, _wpos;
+ std::vector<uint8> _storage;
+};
+
+template <typename T> ByteBuffer &operator<<(ByteBuffer &b, std::vector<T> v)
+{
+ b << (uint32)v.size();
+ for (typename std::vector<T>::iterator i = v.begin(); i != v.end(); i++)
+ {
+ b << *i;
+ }
+ return b;
+}
+
+template <typename T> ByteBuffer &operator>>(ByteBuffer &b, std::vector<T> &v)
+{
+ uint32 vsize;
+ b >> vsize;
+ v.clear();
+ while(vsize--)
+ {
+ T t;
+ b >> t;
+ v.push_back(t);
+ }
+ return b;
+}
+
+template <typename T> ByteBuffer &operator<<(ByteBuffer &b, std::list<T> v)
+{
+ b << (uint32)v.size();
+ for (typename std::list<T>::iterator i = v.begin(); i != v.end(); i++)
+ {
+ b << *i;
+ }
+ return b;
+}
+
+template <typename T> ByteBuffer &operator>>(ByteBuffer &b, std::list<T> &v)
+{
+ uint32 vsize;
+ b >> vsize;
+ v.clear();
+ while(vsize--)
+ {
+ T t;
+ b >> t;
+ v.push_back(t);
+ }
+ return b;
+}
+
+template <typename K, typename V> ByteBuffer &operator<<(ByteBuffer &b, std::map<K, V> &m)
+{
+ b << (uint32)m.size();
+ for (typename std::map<K, V>::iterator i = m.begin(); i != m.end(); i++)
+ {
+ b << i->first << i->second;
+ }
+ return b;
+}
+
+template <typename K, typename V> ByteBuffer &operator>>(ByteBuffer &b, std::map<K, V> &m)
+{
+ uint32 msize;
+ b >> msize;
+ m.clear();
+ while(msize--)
+ {
+ K k;
+ V v;
+ b >> k >> v;
+ m.insert(make_pair(k, v));
+ }
+ return b;
+}
+#endif