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CWE-ou-minkata/MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plNetCommon/plServerGuid.cpp

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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
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 3 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, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#include "hsWindows.h"
#include "plServerGuid.h"
#include "../pnMessage/plMessage.h"
#include "../PubUtilLib/plStreamLogger/plStreamLogger.h"
#if HS_BUILD_FOR_WIN32
#include <process.h>
#else
#include <sys/time.h>
#include <unistd.h>
#endif
////////////////////////////////////////////////////////////////////
#ifdef HS_BUILD_FOR_WIN32
// Taken from plUnifiedTime, in turn taken from python source.
// TODO: Move this down to CoreLib someday (and rename it maybe).
#define MAGICWINDOWSOFFSET ((__int64)11644473600)
static UInt32 SecsSinceUNIXEpoch()
{
FILETIME ft;
GetSystemTimeAsFileTime(&ft); /* 100 ns blocks since 01-Jan-1641 */
__int64 ff,ffsecs;
ff = *(__int64*)(&ft);
ffsecs = ff/(__int64)10000000;
return (UInt32)(ffsecs-MAGICWINDOWSOFFSET);
}
#else
static UInt32 SecsSinceUNIXEpoch()
{
struct timeval tv;
gettimeofday(&tv, nil);
return tv.tv_sec;
}
#endif
////////////////////////////////////////////////////////////////////
UInt32 plServerGuid::fGuidSeed = 0;
plServerGuid::plServerGuid()
{
Clear();
}
plServerGuid::plServerGuid( const plServerGuid & other )
{
Clear();
CopyFrom( other );
}
plServerGuid::plServerGuid(const char * s)
{
Clear();
FromString(s);
}
plServerGuid::plServerGuid(const hsWide & v)
{
Clear();
FromWide( v );
}
plServerGuid& plServerGuid::operator=( const plServerGuid & rhs )
{
CopyFrom(rhs);
return *this;
}
bool operator==(const plServerGuid & X, const plServerGuid & Y)
{
return memcmp(X.N,Y.N,plServerGuid::kGuidBytes)==0;
}
bool operator!=(const plServerGuid & X, const plServerGuid & Y)
{
return memcmp(X.N,Y.N,plServerGuid::kGuidBytes)!=0;
}
bool operator<(const plServerGuid & X, const plServerGuid & Y)
{
return memcmp(X.N,Y.N,plServerGuid::kGuidBytes)<0;
}
hsWide plServerGuid::AsWide() const
{
return fWide;
}
void plServerGuid::FromWide( const hsWide & v )
{
fWide = v;
}
bool plServerGuid::IsSet() const
{
return N[0]||N[1]||N[2]||N[3]||N[4]||N[5]||N[6]||N[7];
}
bool plServerGuid::IsEqualTo(const plServerGuid * other) const
{
return (*this)==(*other);
}
const char * plServerGuid::AsString() const
{
static char str[kGuidBytes*2+1];
sprintf(str,"%02X%02X%02X%02X%02X%02X%02X%02X",N[0],N[1],N[2],N[3],N[4],N[5],N[6],N[7]);
return str;
}
std::string plServerGuid::AsStdString( void ) const
{
std::string str;
str.resize(kGuidBytes*2+1);
int n = sprintf(const_cast<char*>(str.data()),"%02X%02X%02X%02X%02X%02X%02X%02X",N[0],N[1],N[2],N[3],N[4],N[5],N[6],N[7]);
str.resize(n);
return str;
}
static unsigned char hexValues[] =
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
bool plServerGuid::FromString(const char * s)
{
if (!s || (s && strlen(s)!=kGuidBytes*2 ) )
{
Clear();
return false;
}
N[0] = hexValues[s[0]]<<4;
N[0] += hexValues[s[1]];
N[1] = hexValues[s[2]]<<4;
N[1] += hexValues[s[3]];
N[2] = hexValues[s[4]]<<4;
N[2] += hexValues[s[5]];
N[3] = hexValues[s[6]]<<4;
N[3] += hexValues[s[7]];
N[4] = hexValues[s[8]]<<4;
N[4] += hexValues[s[9]];
N[5] = hexValues[s[10]]<<4;
N[5] += hexValues[s[11]];
N[6] = hexValues[s[12]]<<4;
N[6] += hexValues[s[13]];
N[7] = hexValues[s[14]]<<4;
N[7] += hexValues[s[15]];
return true;
}
void plServerGuid::Read(hsStream * s, hsResMgr*)
{
s->LogSubStreamStart("push me");
s->LogSubStreamPushDesc("plServerGuid");
plMsgCArrayHelper::Peek(N,kGuidBytes,s);
s->LogSubStreamEnd();
}
void plServerGuid::Write(hsStream * s, hsResMgr*)
{
plMsgCArrayHelper::Poke(N,kGuidBytes,s);
}
void plServerGuid::CopyFrom(const plServerGuid & other)
{
memcpy(N,other.N,kGuidBytes);
}
void plServerGuid::CopyFrom(const plServerGuid * other)
{
if(other)
memcpy(N,other->N,kGuidBytes);
else
Clear();
}
void plServerGuid::Clear()
{
memset(N,0,kGuidBytes);
}
void plServerGuid::SetGuidSeed(UInt32 seed)
{
fGuidSeed = seed;
}
plServerGuid plServerGuid::GenerateGuid()
{
// | N[0] | N[1] | N[2] | N[3] | N[4] | N[5] | N[6] | N[7] |
// 43210987654321098765432109876543210987654321098765432109876543210
// 01234567890123456789012345678901234567890123456789012345678901234
// 64 48 32 16 0
// | fGuidSeed | Current Time | Counter |
//
// fGuidSeed: 24 bits (settable. default is getpid())
// Current Time: 24 bits (seconds. ~8.5 year cycle)
// Counter: 16 bits (always increasing per process)
static UInt16 StaticCounter = 0;
if (!fGuidSeed)
{
hsStatusMessage( "fGuidSeed not set yet. Cannot generate a reliable guid! Setting fGuidSeed=getpid()." );
// hsAssert(fGuidSeed,"fGuidSeed not set yet. Cannot generate a reliable guid.\nIgnoring this assert will set fGuidSeed=getpid().");
fGuidSeed = getpid();
}
UInt32 currTime = SecsSinceUNIXEpoch();
plServerGuid guid;
guid.N[0] = (UInt8)((fGuidSeed & 0x00FF0000)>>16);
guid.N[1] = (UInt8)((fGuidSeed & 0x0000FF00)>> 8);
guid.N[2] = (UInt8)(fGuidSeed & 0x000000FF);
guid.N[3] = (UInt8)((currTime & 0x00FF0000)>>16);
guid.N[4] = (UInt8)((currTime & 0x0000FF00)>> 8);
guid.N[5] = (UInt8)(currTime & 0x000000FF);
guid.N[6] = (StaticCounter & 0xFF00)>> 8;
guid.N[7] = (StaticCounter & 0x00FF);
StaticCounter++;
return guid;
}
////////////////////////////////////////////////////////////////////
// End.