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[cooja] memory: Added address and symbol based memory access classes

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This commit is contained in:
Enrico Joerns 2014-07-22 18:10:30 +02:00
parent d1c05300a9
commit 6b15e7837d
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tools/cooja/java/org/contikios/cooja/mote/memory/Memory.java Normal file
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/*
* Copyright (c) 2014, TU Braunschweig.
* 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.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 THE INSTITUTE 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.
*
*/
package org.contikios.cooja.mote.memory;
import org.contikios.cooja.mote.memory.MemoryLayout.DataType;
/**
* Represents memory that can be accessed with address and size informations.
*
* @author Enrico Jorns
*/
public abstract class Memory {
private final MemoryInterface memIntf;
/**
* Creates new memory for given MemoryLayout.
*
* @param intf
*/
public Memory(MemoryInterface intf) {
memIntf = intf;
}
// -- Get fixed size types
/**
* Read 8 bit integer from address.
*
* @param addr Address to read from
* @return 8 bit value read from address
*/
public byte getInt8ValueOf(long addr) {
return memIntf.getMemorySegment(addr, DataType.INT8.getSize())[0];
}
/**
* Read 16 bit integer from address.
*
* @param addr Address to read from
* @return 16 bit value read from address
*/
public short getInt16ValueOf(long addr) {
return MemoryBuffer.wrap(
memIntf.getLayout(),
memIntf.getMemorySegment(addr, DataType.INT16.getSize())).getInt16();
}
/**
* Read 32 bit integer from address.
*
* @param addr Address to read from
* @return 32 bit value read from address
*/
public int getInt32ValueOf(long addr) {
return MemoryBuffer.wrap(
memIntf.getLayout(),
memIntf.getMemorySegment(addr, DataType.INT32.getSize())).getInt32();
}
/**
* Read 64 bit integer from address.
*
* @param addr Address to read from
* @return 64 bit value read from address
*/
public long getInt64ValueOf(long addr) {
return MemoryBuffer.wrap(
memIntf.getLayout(),
memIntf.getMemorySegment(addr, DataType.INT64.getSize())).getInt64();
}
// -- Get compiler-dependent types
/**
* Read byte from address.
*
* @param addr Address to read from
* @return byte read from address
*/
public byte getByteValueOf(long addr) {
return memIntf.getMemorySegment(addr, DataType.BYTE.getSize())[0];
}
/**
* Read short from address.
*
* @param addr Address to read from
* @return short read from address
*/
public short getShortValueOf(long addr) {
return MemoryBuffer.wrap(memIntf.getLayout(), memIntf.getMemorySegment(addr, 2)).getShort();
}
/**
* Read integer from address.
* <p>
* Note: Size of integer depends on platform type.
*
* @param addr Address to read from
* @return integer read from address
*/
public int getIntValueOf(long addr) {
return MemoryBuffer.wrap(memIntf.getLayout(), memIntf.getMemorySegment(addr, memIntf.getLayout().intSize)).getInt();
}
/**
* Read long from address.
*
* @param addr Address to read from
* @return long read from address
*/
public long getLongValueOf(long addr) {
return MemoryBuffer.wrap(memIntf.getLayout(), memIntf.getMemorySegment(addr, 4)).getLong();
}
/**
* Read pointer from address.
* <p>
* Note: Size of pointer depends on platform type.
*
* @param addr Address to read from
* @return pointer read from address
*/
public long getAddrValueOf(long addr) {
return MemoryBuffer.wrap(memIntf.getLayout(), memIntf.getMemorySegment(addr, memIntf.getLayout().addrSize)).getAddr();
}
// -- Set fixed size types
/**
* Write 8 bit integer to address.
*
* @param addr Address to write to
* @param value 8 bit value to write
*/
public void setInt8ValueOf(long addr, byte value) {
memIntf.setMemorySegment(addr, new byte[]{value});
}
/**
* Write 16 bit integer to address.
*
* @param addr Address to write to
* @param value 16 bit value to write
*/
public void setInt16ValueOf(long addr, short value) {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(
memIntf.getLayout(),
new byte[DataType.INT16.getSize()]).putShort(value).getBytes());
}
/**
* Write 32 bit integer to address.
*
* @param addr Address to write to
* @param value 32 bit value to write
*/
public void setInt32ValueOf(long addr, int value) {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(
memIntf.getLayout(),
new byte[DataType.INT32.getSize()]).putInt(value).getBytes());
}
/**
* Write 64 bit integer to address.
*
* @param addr Address to write to
* @param value 64 bit value to write
*/
public void setInt64ValueOf(long addr, long value) {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(
memIntf.getLayout(),
new byte[DataType.INT64.getSize()]).putLong(value).getBytes());
}
// -- Set compiler-dependent types
/**
* Write byte to address.
*
* @param addr Address to write to
* @param value byte to write
*/
public void setByteValueOf(long addr, byte value) {
memIntf.setMemorySegment(addr, new byte[]{value});
}
/**
* Write short to address.
*
* @param addr Address to write to
* @param value short to write
*/
public void setShortValueOf(long addr, short value) {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(memIntf.getLayout(), new byte[2]).putShort(value).getBytes());
}
/**
* Write integer to address.
* <p>
* Note: Size of integer depends on platform type.
*
* @param addr Address to write to
* @param value integer to write
*/
public void setIntValueOf(long addr, int value) {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(memIntf.getLayout(), new byte[memIntf.getLayout().intSize]).putInt(value).getBytes());
}
/**
* Write long to address.
*
* @param addr Address to write to
* @param value long to write
*/
public void setLongValueOf(long addr, long value) {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(memIntf.getLayout(), new byte[4]).putLong(value).getBytes());
}
/**
* Write pointer to address.
* <p>
* Note: Size of pointer depends on platform type.
*
* @param addr Address to write to
* @param value pointer to write
*/
public void setAddrValueOf(long addr, long value) {
memIntf.setMemorySegment(addr, MemoryBuffer.wrap(memIntf.getLayout(), new byte[memIntf.getLayout().addrSize]).putAddr(value).getBytes());
}
}

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tools/cooja/java/org/contikios/cooja/mote/memory/VarMemory.java Normal file
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/*
* Copyright (c) 2014, TU Braunschweig.
* 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.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 THE INSTITUTE 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.
*
*/
package org.contikios.cooja.mote.memory;
import java.util.Collection;
import java.util.Set;
import org.contikios.cooja.mote.memory.MemoryInterface.Symbol;
import org.contikios.cooja.mote.memory.MemoryInterface.SegmentMonitor;
import org.contikios.cooja.mote.memory.MemoryInterface.SegmentMonitor.EventType;
/**
* Represents memory that can be accessed with names of variables.
*
* @author Enrico Jorns
*/
public class VarMemory extends Memory {
private MemoryInterface memIntf;
/**
* Creates new VarMemory.
*
* @param intf
*/
public VarMemory(MemoryInterface intf) {
super(intf);
memIntf = intf;
}
/**
* Allows to change the MemoryInterface associated with this access class.
*
* @param intf Interface to associate with
*/
public void associateMemory(MemoryInterface intf) {
memIntf = intf;
}
/**
* Generates and returns an array of all variables in this memory
*
* @return All variables located in this memory
*/
public Collection<Symbol> getVariables() {
return memIntf.getSymbolMap().values();
}
/**
* Generates an array of all variable names in this memory.
*
* @return All variable names located in this memory
*/
public Set<String> getVariableNames() {
return memIntf.getSymbolMap().keySet();
}
/**
* Checks if given variable exists in memory.
*
* @param varName Variable name
* @return True if variable exists, false otherwise
*/
public boolean variableExists(String varName) {
return memIntf.getSymbolMap().containsKey(varName);
}
/**
* Returns address of variable with given name.
*
* @param varName Variable name
* @return Variable address
*/
public Symbol getVariable(String varName) throws UnknownVariableException {
return memIntf.getSymbolMap().get(varName);
}
/**
* Returns address of variable with given name.
*
* @param varName Variable name
* @return Address of variable
* @throws UnknownVariableException If variable not found
*/
public long getVariableAddress(String varName) throws UnknownVariableException {
return getVariable(varName).addr;
}
/**
* Return size of variable with given name.
*
* @param varName Variable name
* @return Size of variable, -1 if unknown size
* @throws UnknownVariableException If variable not found
*/
public int getVariableSize(String varName) throws UnknownVariableException {
return getVariable(varName).size;
}
/**
* Read 8 bit integer from location associated with this variable name.
*
* @param varName Variable name
* @return 8 bit integer value read from location assigned to variable name
*/
public byte getInt8ValueOf(String varName)
throws UnknownVariableException {
return getInt8ValueOf(getVariable(varName).addr);
}
/**
* Read 16 bit integer from location associated with this variable name.
*
* @param varName Variable name
* @return 16 bit integer value read from location assigned to variable name
*/
public short getInt16ValueOf(String varName)
throws UnknownVariableException {
return getInt16ValueOf(getVariable(varName).addr);
}
/**
* Read 32 bit integer from location associated with this variable name.
*
* @param varName Variable name
* @return 32 bit integer value read from location assigned to variable name
*/
public int getInt32ValueOf(String varName)
throws UnknownVariableException {
return getInt32ValueOf(getVariable(varName).addr);
}
/**
* Read 64 bit integer from location associated with this variable name.
*
* @param varName Variable name
* @return 64 bit integer value read from location assigned to variable name
*/
public long getInt64ValueOf(String varName)
throws UnknownVariableException {
return getInt64ValueOf(getVariable(varName).addr);
}
/**
* Read byte from location associated with this variable name.
*
* @param varName Variable name
* @return byte value read from location assigned to variable name
*/
public byte getByteValueOf(String varName)
throws UnknownVariableException {
return getByteValueOf(getVariable(varName).addr);
}
/**
* Read short from location associated with this variable name.
*
* @param varName Variable name
* @return short value read from location assigned to variable name
*/
public short getShortValueOf(String varName)
throws UnknownVariableException {
short val = getShortValueOf(getVariable(varName).addr);
return val;
}
/**
* Read integer from location associated with this variable name.
*
* @param varName Variable name
* @return integer value read from location assigned to variable name
*/
public int getIntValueOf(String varName)
throws UnknownVariableException {
int val = getIntValueOf(getVariable(varName).addr);
return val;
}
/**
* Read long from location associated with this variable name.
*
* @param varName Variable name
* @return long value read from location assigned to variable name
*/
public long getLongValueOf(String varName)
throws UnknownVariableException {
long val = getLongValueOf(getVariable(varName).addr);
return val;
}
/**
* Read pointer from location associated with this variable name.
*
* The number of bytes actually read depends on the pointer size
* defined in memory layout.
*
* @param varName Variable name
* @return pointer value read from location assigned to variable name
*/
public long getAddrValueOf(String varName)
throws UnknownVariableException {
long val = getAddrValueOf(getVariable(varName).addr);
return val;
}
/**
* Read byte array starting at location associated with this variable name.
*
* @param varName Variable name
* @param length Numbe of bytes to read
* @return byte array read from location assigned to variable name
*/
public byte[] getByteArray(String varName, int length)
throws UnknownVariableException {
return memIntf.getMemorySegment(getVariable(varName).addr, length);
}
/**
* Write 8 bit integer value to location associated with this variable name.
*
* @param varName Variable name
* @param value 8 bit integer value to write
*/
public void setInt8ValueOf(String varName, byte value)
throws UnknownVariableException {
setInt8ValueOf(getVariable(varName).addr, value);
}
/**
* Write 16 bit integer value to location associated with this variable name.
*
* @param varName Variable name
* @param value 16 bit integer value to write
*/
public void setInt16ValueOf(String varName, byte value)
throws UnknownVariableException {
setInt16ValueOf(getVariable(varName).addr, value);
}
/**
* Write 32 bit integer value to location associated with this variable name.
*
* @param varName Variable name
* @param value 32 bit integer value to write
*/
public void setInt32ValueOf(String varName, byte value)
throws UnknownVariableException {
setInt32ValueOf(getVariable(varName).addr, value);
}
/**
* Write 64 bit integer value to location associated with this variable name.
*
* @param varName Variable name
* @param value 64 bit integer value to write
*/
public void setInt64ValueOf(String varName, byte value)
throws UnknownVariableException {
setInt64ValueOf(getVariable(varName).addr, value);
}
/**
* Write byte value to location associated with this variable name.
*
* @param varName Variable name
* @param value byte value to write
*/
public void setByteValueOf(String varName, byte value)
throws UnknownVariableException {
setByteValueOf(getVariable(varName).addr, value);
}
/**
* Write short value to location associated with this variable name.
*
* @param varName Variable name
* @param value short value to write
*/
public void setShortValueOf(String varName, short value)
throws UnknownVariableException {
setShortValueOf(getVariable(varName).addr, value);
}
/**
* Write int value to location associated with this variable name.
*
* @param varName Variable name
* @param value int value to write
*/
public void setIntValueOf(String varName, int value)
throws UnknownVariableException {
setIntValueOf(getVariable(varName).addr, value);
}
/**
* Write long value to location associated with this variable name.
*
* @param varName Variable name
* @param value long value to write
*/
public void setLongValueOf(String varName, long value)
throws UnknownVariableException {
setLongValueOf(getVariable(varName).addr, value);
}
/**
* Write pointer value to location associated with this variable name.
*
* The number of bytes actually written depends on the pointer size
* defined in memory layout.
*
* @param varName Variable name
* @param value Value to write
*/
public void setAddrValueOf(String varName, long value)
throws UnknownVariableException {
setAddrValueOf(getVariable(varName).addr, value);
}
/**
*
* @param varName
* @param data
*/
public void setByteArray(String varName, byte[] data)
throws UnknownVariableException {
memIntf.setMemorySegment(getVariable(varName).addr, data);
}
/**
* Adds a MemoryMonitor for the specified address region.
*
* @param flag Select memory operation(s) to listen for (read, write,
* read/write)
* @param varName
* @param mm
* @return
*/
public boolean addVarMonitor(EventType flag, final String varName, final SegmentMonitor mm) {
return memIntf.addSegmentMonitor(
flag,
getVariable(varName).addr,
getVariable(varName).size,
mm);
}
/**
* Removes MemoryMonitor assigned to the specified region.
*
* @param varName
* @param mm MemoryMonitor to remove
*/
public void removeVarMonitor(String varName, SegmentMonitor mm) {
memIntf.removeSegmentMonitor(getVariable(varName).addr, getVariable(varName).size, mm);
}
}