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/**
* Copyright 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.common.os;
import com.jogamp.common.os.MachineDescription;
import com.jogamp.common.os.NativeLibrary;
import com.jogamp.common.os.Platform;
import com.jogamp.common.os.MachineDescription.StaticConfig;
/**
* Runtime MachineDescription
*/
public class MachineDescriptionRuntime {
static volatile boolean smdQueried = false;
static MachineDescription.StaticConfig smd = null;
public static MachineDescription.StaticConfig getStatic() {
if(!smdQueried) {
synchronized(MachineDescription.class) { // volatile dbl-checked-locking OK
if(!smdQueried) {
smd = getStaticImpl();
smdQueried=true;
}
}
}
return smd;
}
private static MachineDescription.StaticConfig getStaticImpl() {
if(Platform.isCPUArch32Bit()) {
if(Platform.getCPUFamily() == Platform.CPUFamily.ARM && Platform.isLittleEndian()) {
return StaticConfig.ARMle_EABI;
} else if(Platform.getOSType() == Platform.OSType.WINDOWS) {
return StaticConfig.X86_32_WINDOWS;
}
return StaticConfig.X86_32_UNIX;
} else {
if(Platform.getOSType() == Platform.OSType.WINDOWS) {
return StaticConfig.X86_64_WINDOWS;
}
return StaticConfig.X86_64_UNIX;
}
}
static volatile boolean rmdQueried = false;
static MachineDescription rmd = null;
public static MachineDescription getRuntime() {
if(!rmdQueried) {
synchronized(MachineDescription.class) { // volatile dbl-checked-locking OK
if(!rmdQueried) {
rmd = getRuntimeImpl();
rmdQueried=true;
}
}
}
return rmd;
}
private static MachineDescription getRuntimeImpl() {
try {
NativeLibrary.ensureNativeLibLoaded();
} catch (UnsatisfiedLinkError err) {
return null;
}
int pointerSizeInBytes = getPointerSizeInBytesImpl();
switch(pointerSizeInBytes) {
case 4:
case 8:
break;
default:
throw new RuntimeException("Unsupported pointer size "+pointerSizeInBytes+"bytes, please implement.");
}
final long pageSizeL = getPageSizeInBytesImpl();
if(Integer.MAX_VALUE < pageSizeL) {
throw new InternalError("PageSize exceeds integer value: " + pageSizeL);
}
// size: int, long, float, double, pointer, pageSize
// alignment: int8, int16, int32, int64, int, long, float, double, pointer
return new MachineDescription(
true /* runtime validated */, Platform.isLittleEndian(),
getSizeOfIntImpl(), getSizeOfLongImpl(),
getSizeOfFloatImpl(), getSizeOfDoubleImpl(), getSizeOfLongDoubleImpl(),
pointerSizeInBytes, (int)pageSizeL,
getAlignmentInt8Impl(), getAlignmentInt16Impl(), getAlignmentInt32Impl(), getAlignmentInt64Impl(),
getAlignmentIntImpl(), getAlignmentLongImpl(),
getAlignmentFloatImpl(), getAlignmentDoubleImpl(), getAlignmentLongDoubleImpl(),
getAlignmentPointerImpl());
}
private static native int getPointerSizeInBytesImpl();
private static native long getPageSizeInBytesImpl();
private static native int getAlignmentInt8Impl();
private static native int getAlignmentInt16Impl();
private static native int getAlignmentInt32Impl();
private static native int getAlignmentInt64Impl();
private static native int getAlignmentIntImpl();
private static native int getAlignmentLongImpl();
private static native int getAlignmentPointerImpl();
private static native int getAlignmentFloatImpl();
private static native int getAlignmentDoubleImpl();
private static native int getAlignmentLongDoubleImpl();
private static native int getSizeOfIntImpl();
private static native int getSizeOfLongImpl();
private static native int getSizeOfPointerImpl();
private static native int getSizeOfFloatImpl();
private static native int getSizeOfDoubleImpl();
private static native int getSizeOfLongDoubleImpl();
}
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