/*
 * (c) Copyright QNX Software Systems Ltd. 2002.
 * All Rights Reserved.
 *
 */
package org.eclipse.cdt.debug.mi.core.cdi;

import org.eclipse.cdt.debug.core.cdi.ICDIConfiguration;
import org.eclipse.cdt.debug.mi.core.MIInferior;
import org.eclipse.cdt.debug.mi.core.MISession;
import org.eclipse.cdt.utils.spawner.Spawner;

/**
 */
public class Configuration implements ICDIConfiguration {
	protected boolean fAttached;
	MISession miSession;
	
	public Configuration(MISession s, boolean attached) {
		fAttached = attached;
		miSession = s;
	}
	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsBreakpoints()
	 */
	public boolean supportsBreakpoints() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsDisconnect()
	 */
	public boolean supportsDisconnect() {
		return fAttached ? true :false;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsExpressionEvaluation()
	 */
	public boolean supportsExpressionEvaluation() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsInstructionStepping()
	 */
	public boolean supportsInstructionStepping() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsMemoryModification()
	 */
	public boolean supportsMemoryModification() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsMemoryRetrieval()
	 */
	public boolean supportsMemoryRetrieval() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsRegisterModification()
	 */
	public boolean supportsRegisterModification() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsRegisters()
	 */
	public boolean supportsRegisters() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsSharedLibrary()
	 */
	public boolean supportsSharedLibrary() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsRestart()
	 */
	public boolean supportsRestart() {
		return fAttached ? false : true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsStepping()
	 */
	public boolean supportsStepping() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsTerminate()
	 */
	public boolean supportsTerminate() {
		return true;
		
	}
	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsResume()
	 */
	public boolean supportsResume() {
		return true;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#supportsSuspend()
	 */
	public boolean supportsSuspend() {
		String os = null;
		try {
			os = System.getProperty("os.name", "");
		} catch (SecurityException e) {
		}
		Process gdb = miSession.getGDBProcess();
		if (gdb instanceof Spawner) {
			// If we attached sending a control-c,
			// seems to alays work.
			if (fAttached) {
				return true;
			}

			// If we have a pty, sending a control-c will work
			// except for solaris.
			if (os.equals("SunOS")) {
				MIInferior inferior = miSession.getMIInferior();
				if (inferior.getPTY() != null) {
					// FIXME: bug in Solaris gdb when using -tty, sending a control-c
					// does not work.
					return false;
				} else {
					return true;
				}
			}
			return true;
		}
		return false;
	}

	/**
	 * @see org.eclipse.cdt.debug.core.cdi.ICDIConfiguration#terminateSessionOnExit()
	 */
	public boolean terminateSessionOnExit() {
		return true;
	}
}