139 lines
4.2 KiB
Java
139 lines
4.2 KiB
Java
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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package com.netscape.jsdebugging.api;
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/**
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* When a hook is hit, the debugger records the state of the
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* thread before the hook in a ThreadState object. This object
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* is then passed to any hook methods that are called, and can
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* be used to change the state of the thread when it resumes from the
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* hook.
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*/
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public interface ThreadStateBase
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{
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/**
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* Return true if the Thread hasn't been resumed since this ThreadState
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* was made.
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*/
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public boolean isValid();
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/**
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* partial list of thread states from sun.debug.ThreadInfo.
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* XXX some of these don't apply.
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*/
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public int THR_STATUS_UNKNOWN = 0x01;
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public int THR_STATUS_ZOMBIE = 0x02;
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public int THR_STATUS_RUNNING = 0x03;
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public int THR_STATUS_SLEEPING = 0x04;
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public int THR_STATUS_MONWAIT = 0x05;
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public int THR_STATUS_CONDWAIT = 0x06;
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public int THR_STATUS_SUSPENDED = 0x07;
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public int THR_STATUS_BREAK = 0x08;
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/**
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* Get the state of the thread at the time it entered debug mode.
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* This can't be modified directly.
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*/
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public int getStatus();
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public int countStackFrames()
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throws InvalidInfoException;
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public StackFrameInfo getCurrentFrame()
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throws InvalidInfoException;
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/**
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* Get the thread's stack as an array. stack[stack.length-1] is the
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* current frame, and stack[0] is the beginning of the stack.
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*/
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public StackFrameInfo[] getStack()
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throws InvalidInfoException;
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/**
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* Return true if the thread is currently running a hook
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* for this ThreadState
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*/
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public boolean isRunningHook();
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/**
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* Return true if the hook on this thread has already completed
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* and we are waiting for a call to resume()
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*/
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public boolean isWaitingForResume();
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/**
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* Leave the thread in a suspended state when the hook method(s)
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* finish. This can be undone by calling resume().
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*/
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public void leaveSuspended();
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/**
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* Resume the thread.
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* Two cases:
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* 1) Hook is still running, this will undo the leaveSuspended
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* and the thread will still be waiting for the hook to
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* return.
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* 2) Hook has already returned and we are in an event loop
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* waiting to contine the suspended thread, this will
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* force completion of events pending on the suspended
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* thread and resume it.
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*/
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public void resume();
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/**
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* if the continueState is DEAD, the thread cannot
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* be restarted.
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*/
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public int DEBUG_STATE_DEAD = 0x01;
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/**
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* if the continueState is RUN, the thread will
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* proceed to the next program counter value when it resumes.
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*/
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public int DEBUG_STATE_RUN = 0x02;
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/**
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* if the continueState is RETURN, the thread will
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* return from the current method with the value in getReturnValue()
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* when it resumes.
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*/
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public int DEBUG_STATE_RETURN = 0x03;
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/**
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* if the continueState is THROW, the thread will
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* throw an exception (accessible with getException()) when it
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* resumes.
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*/
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public int DEBUG_STATE_THROW = 0x04;
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/**
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* This gets the current continue state of the debug frame, which
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* will be one of the DEBUG_STATE_* values above.
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*/
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public int getContinueState();
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public int setContinueState(int state);
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}
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