/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/




// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"

#include <stdio.h>
#include <math.h>

#include <osl/interlck.h>
#include <osl/mutex.hxx>
#include <osl/semaphor.h>

#include <rtl/string.hxx>
#include <rtl/byteseq.hxx>

#include <com/sun/star/uno/Sequence.hxx>

#ifdef SAL_W32
#include <windows.h>
#else
#include <sys/times.h>
#endif
#ifndef ULONG_MAX
#define ULONG_MAX 0xffffffff
#endif

using namespace ::rtl;
using namespace ::osl;
using namespace ::com::sun::star::uno;

static inline sal_uInt32 getSystemTicks()
{
#ifdef SAL_W32
	return (sal_uInt32)GetTickCount();
#else // only UNX supported for now
	static sal_uInt32	nImplTicksPerSecond = 0;
	static double		dImplTicksPerSecond;
	static double		dImplTicksULONGMAX;
	
	struct tms			aTms;
	sal_uInt32 nTicks = (sal_uInt32)times( &aTms );

	if ( !nImplTicksPerSecond )
	{
		nImplTicksPerSecond = CLK_TCK;
		dImplTicksPerSecond = nImplTicksPerSecond;
		dImplTicksULONGMAX	= (double)(sal_uInt32)ULONG_MAX;
	}
	
	double fTicks = nTicks;
	fTicks *= 1000;
	fTicks /= dImplTicksPerSecond;
	fTicks = fmod (fTicks, dImplTicksULONGMAX);

	return (sal_uInt32)fTicks;
#endif
}

class MyTimer
{
public:
	MyTimer(  const OString &descString ) :
		nStart( getSystemTicks() ),
		m_descString( descString )
		{
		}
	~MyTimer( )
		{
			printf( "%f s : %s\n", (getSystemTicks() -nStart) / 1000., m_descString.getStr() );
		}
private:
	sal_uInt32 nStart;
	OString m_descString;
};

void main()
{
	// interlocked count
	{
		MyTimer timer( "performance - 1000*10000 interlocked count" );
		oslInterlockedCount count;
		for( int i = 0 ; i < 1000*10000 ; i ++  )
		{
			osl_incrementInterlockedCount( &count );
		}
	}
	{
		OString myDummyString( "blubber" );
		MyTimer timer( "performance - 1000*10000 acquiring/releasing a refcounted string(without destruction)" );
		for( int i = 0 ; i < 1000*10000 ; i ++  )
		{
			OString myNextDummyString = myDummyString ;
		}
	}

	printf( "--------------------\n" );
	{
		Mutex mutex;
		MyTimer timer( "performance - 1000*10000 acquiring/releasing an osl::Mutex" );
		for( int i = 0 ; i < 1000*10000 ; i ++  )
		{
			MutexGuard guard( mutex );
		}
	}

	{
		oslSemaphore sema = osl_createSemaphore(1);
		MyTimer timer( "performance - 1000*10000 acquiring/releasing an osl::Semaphore" );
		for( int i = 0 ; i < 1000*10000 ; i ++  )
		{
			osl_acquireSemaphore( sema );
			osl_releaseSemaphore( sema );
		}
	}

	printf( "--------------------\n" );
	{
		MyTimer timer( "performance - 1000*10000 rtl::ByteSequence(500)" );
		for( int i = 0 ; i < 1000*1000 ; i ++  )
		{
			ByteSequence seq(500);
		}
	}

	{
		MyTimer timer( "performance - 1000*1000 rtl::ByteSequence(500,BYTESEQ_NODEFAULT)" );
		for( int i = 0 ; i < 1000*1000 ; i ++  )
		{
			ByteSequence seq(500, BYTESEQ_NODEFAULT);
		}
	}
	{
		MyTimer timer( "performance - 1000*1000 com::sun::star::uno::Sequence< sal_Int8 > (500)" );
		for( int i = 0 ; i < 1000*1000 ; i ++  )
		{
			Sequence< sal_Int8> seq(500);
		}
	}
	{
		MyTimer timer( "performance - 1000*1000 rtl_freeMemory( rtl_allocateMemory( 512 ) )" );
		for( int i = 0 ; i < 1000*1000 ; i ++  )
		{
			rtl_freeMemory( rtl_allocateMemory( 512 ) );
		}
	}

	printf( "--------------------\n" );
	{
		MyTimer timer( "performance - 1000*1000 byte  string construction/destruction" );
		for( int i = 0 ; i < 1000*1000 ; i ++  )
		{
			OString textEnc( "this is a test string" );
		}
	}

	{
		MyTimer timer( "performance - 1000*1000 unicode string construction/destruction" );
		for( int i = 0 ; i < 1000*1000 ; i ++  )
		{
			OUString textEnc( RTL_CONSTASCII_USTRINGPARAM( "this is a test string" ) );
		}
	}
		
}