/usr/include/geos/util/Interrupt.h is in libgeos++-dev 3.6.2-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* GEOS - Geometry Engine Open Source
* http://geos.osgeo.org
*
* Copyright (C) 2012 Sandro Santilli <strk@keybit.net>
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************/
#ifndef GEOS_UTIL_INTERRUPT_H
#define GEOS_UTIL_INTERRUPT_H
#include <geos/export.h>
namespace geos {
namespace util { // geos::util
#define GEOS_CHECK_FOR_INTERRUPTS() geos::util::Interrupt::process()
/** Used to manage interruption requests and callbacks */
class GEOS_DLL Interrupt {
public:
typedef void (Callback)(void);
/**
* Request interruption of operations
*
* Operations will be terminated by a GEOSInterrupt
* exception at first occasion.
*/
static void request();
/** Cancel a pending interruption request */
static void cancel();
/** Check if an interruption request is pending */
static bool check();
/** \brief
* Register a callback that will be invoked
* before checking for interruption requests.
*
* NOTE that interruption request checking may happen
* frequently so any callback would better be quick.
*
* The callback can be used to call Interrupt::request()
*
*/
static Callback* registerCallback(Callback *cb);
/**
* Invoke the callback, if any. Process pending interruption, if any.
*
*/
static void process();
/* Perform the actual interruption (simply throw an exception) */
static void interrupt();
};
} // namespace geos::util
} // namespace geos
#endif // GEOS_UTIL_INTERRUPT_H
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