Scippy

    SCIP

    Solving Constraint Integer Programs

    tpi_openmp.h
    Go to the documentation of this file.
    1/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
    2/* */
    3/* This file is part of the program and library */
    4/* SCIP --- Solving Constraint Integer Programs */
    5/* */
    6/* Copyright (c) 2002-2025 Zuse Institute Berlin (ZIB) */
    7/* */
    8/* Licensed under the Apache License, Version 2.0 (the "License"); */
    9/* you may not use this file except in compliance with the License. */
    10/* You may obtain a copy of the License at */
    11/* */
    12/* http://www.apache.org/licenses/LICENSE-2.0 */
    13/* */
    14/* Unless required by applicable law or agreed to in writing, software */
    15/* distributed under the License is distributed on an "AS IS" BASIS, */
    16/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
    17/* See the License for the specific language governing permissions and */
    18/* limitations under the License. */
    19/* */
    20/* You should have received a copy of the Apache-2.0 license */
    21/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
    22/* */
    23/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
    24
    25/**@file tpi_openmp.h
    26 * @ingroup TASKINTERFACE
    27 * @brief the tpi_openmp redefines the lock functionality and some condition functionality as macros
    28 * @author Leona Gottwald
    29 * @author Stephen J. Maher
    30 */
    31
    32/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
    33
    34#ifdef TPI_OMP
    35
    36#ifndef _TPI_OPENMP_H_
    37#define _TPI_OPENMP_H_
    38
    39/* define locks and some condition functionality as macros */
    40
    41/* lock */
    42#define SCIPtpiInitLock(lock) (omp_init_lock(lock), SCIP_OKAY)
    43#define SCIPtpiDestroyLock(lock) (omp_destroy_lock(lock))
    44#define SCIPtpiAcquireLock(lock) (omp_set_lock(lock), SCIP_OKAY)
    45#define SCIPtpiReleaseLock(lock) (omp_unset_lock(lock), SCIP_OKAY)
    46
    47/* condition */
    48#define SCIPtpiInitCondition(condition) ( omp_init_lock(&(condition)->_lock), \
    49 (condition)->_waiters = 0, (condition)->_waitnum = 0, (condition)->_signals = 0, SCIP_OKAY )
    50#define SCIPtpiDestroyCondition(condition) do { assert((condition)->_waiters == 0); assert((condition)->_waitnum == 0); assert((condition)->_signals == 0); omp_destroy_lock(&(condition)->_lock); } while(0)
    51#endif
    52
    53#endif