Class TraceLogger

java.lang.Object

janala.logger.AbstractLogger

edu.berkeley.cs.jqf.instrument.tracing.TraceLogger

All Implemented Interfaces:

Logger

public class TraceLogger
extends AbstractLogger

A singleton class which manages per-thread tracers. This class is used both to log instrumented instructions via SingleSnoop, as well as to provide programmatic access to emit TraceEvents.

Author:

Rohan Padhye

Method Summary

Modifier and Type	Method	Description
void	emit(TraceEvent event)	Emits a trace event for the current thread.
static TraceLogger	get()	Returns a handle to the singleton instance.
protected void	log(Instruction instruction)	Logs an instrumented byteode instruction for the current thread.
void	remove()	Removes the trace logger for the current thread

Methods inherited from class janala.logger.AbstractLogger

AALOAD, AASTORE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, flush, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GETVALUE_boolean, GETVALUE_byte, GETVALUE_char, GETVALUE_double, GETVALUE_float, GETVALUE_int, GETVALUE_long, GETVALUE_Object, GETVALUE_short, GETVALUE_void, GOTO, HEAPLOAD, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INVOKEINTERFACE, INVOKEMETHOD_END, INVOKEMETHOD_EXCEPTION, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDC, LDC, LDC, LDC, LDC, LDIV, LLOAD, LMUL, LNEG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MAKE_SYMBOLIC, METHOD_BEGIN, METHOD_BEGIN, METHOD_THROW, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SPECIAL, SWAP, TABLESWITCH

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

get

public static TraceLogger get()

Returns a handle to the singleton instance.

Returns:

a handle to the singleton instance

log

protected void log(Instruction instruction)

Logs an instrumented byteode instruction for the current thread.

Specified by:

log in class AbstractLogger

emit

public void emit(TraceEvent event)

Emits a trace event for the current thread.

Parameters:

event - the event to be emitted

remove

public void remove()

Removes the trace logger for the current thread