interrupt.h

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                           */
/*                  This file is part of the program and library             */
/*         SCIP --- Solving Constraint Integer Programs                      */
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/*  Copyright (c) 2002-2024 Zuse Institute Berlin (ZIB)                      */
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/**@file   interrupt.h
 * @ingroup INTERNALAPI
 * @brief  methods for catching the user CTRL-C interrupt
 * @author Tobias Achterberg
 */
 
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
 
#ifndef __SCIP_INTERRUPT_H__
#define __SCIP_INTERRUPT_H__
 
 
#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_interrupt.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/** creates a CTRL-C interrupt data */
SCIP_RETCODE SCIPinterruptCreate(
   SCIP_INTERRUPT**      interrupt           /**< pointer to store the CTRL-C interrupt data */
   );
 
/** frees a CTRL-C interrupt data */
void SCIPinterruptFree(
   SCIP_INTERRUPT**      interrupt           /**< pointer to the CTRL-C interrupt data */
   );
 
/** captures the CTRL-C interrupt to call the SCIP's own interrupt handler */
void SCIPinterruptCapture(
   SCIP_INTERRUPT*       interrupt           /**< CTRL-C interrupt data */
   );
 
/** releases the CTRL-C interrupt and restores the old interrupt handler */
void SCIPinterruptRelease(
   SCIP_INTERRUPT*       interrupt           /**< CTRL-C interrupt data */
   );
 
/** returns whether the user interrupted by pressing CTRL-C */
SCIP_Bool SCIPinterrupted(
   void
   );
 
/** returns whether the process has received a SIGTERM */
SCIP_Bool SCIPterminated(
   void
   );
 
/** sends a termination signal to all SCIP processes so that they try to terminate as soon as possible
 *
 *  @note For terminating a specific SCIP process use SCIPinterruptSolve().
 */
void SCIPtryTerminate(
   void
   );
 
/** resets the number of interrupts to 0 */
void SCIPresetInterrupted(
   void
   );
 
#ifdef __cplusplus
}
#endif
 
#endif