UT_ChildProcessTracker.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        UT_ChildProcessTracker.h ( UT Library, C++)
 *
 * COMMENTS:
 *     For child processes that have an indeterminant exit time (like a
 *     spawned viewer), this class will periodically do a non-blocking wait on
 *     them.
 *      
 */
#ifndef UT_CHILD_PROCESS_TRACKER_H
#define UT_CHILD_PROCESS_TRACKER_H

#include "UT_API.h"
#include <SYS/SYS_Types.h>

class UT_API UT_ChildProcessTracker
{
public:
             UT_ChildProcessTracker();
    virtual ~UT_ChildProcessTracker();

    UT_ChildProcessTracker(const UT_ChildProcessTracker &) = delete;
    UT_ChildProcessTracker &operator=(const UT_ChildProcessTracker &) = delete;

    virtual void addNewChild(pid_t pid);
    virtual bool pollChildren();

protected:
    int          myNumPIDs;
    pid_t       *myPIDs;
};

UT_API extern void UTsetChildProcessTracker(UT_ChildProcessTracker *);
UT_API extern UT_ChildProcessTracker *UTgetChildProcessTracker();

#endif