core.h

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// SPDX-FileCopyrightText: Thomas Jahns <jahns@dkrz.de>
//
// SPDX-License-Identifier: BSD-3-Clause
 
/*
 * Maintainer: Thomas Jahns <jahns@dkrz.de>
 * URL: https://www.dkrz.de/redmine/projects/scales-ppm
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are  permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * Neither the name of the DKRZ GmbH nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Commentary:
 *
 * The code in this file should be restricted to handle those parts
 * the user program should keep as much control about as possible,
 * like
 *
 * - error handling
 * - file handling
 *
 * Thus the facilities provided here should always come with hooks
 * for user-provided mechanisms.
 *
 * Code:
 */
 
#ifndef PPM_CORE_H
#define PPM_CORE_H
 
#include <mpi.h>
#include <yaxt.h>
 
#include "ppm/symprefix.h"
 
/* If we're not using GNU C, elide __attribute__ */
#ifndef __GNUC__
#  define  __attribute__(x)  /*NOTHING*/
#endif
// #define UNUSED(x) UNUSED_ ## x __attribute__((__unused__))
#define UNUSED(x) (void)(x)
 
typedef void (*symprefix(abort_func))(MPI_Comm comm, const char *msg,
                                      const char *source, int line)
  __attribute__((noreturn));
 
void symprefix(abort)(MPI_Comm comm, const char *msg,
                      const char *source, int line)
  __attribute__((noreturn));
 
void symprefix(abort_message)(char const *msg, const char *source, int line);
 
void
symprefix(restore_default_abort_handler)(void);
 
void
symprefix(set_abort_handler)(symprefix(abort_func) custom_abort);
 
symprefix(abort_func) symprefix(get_abort_handler)(void);
 
symprefix(abort_func) symprefix(get_default_abort_handler)(void);
 
extern void
symprefix(set_default_comm)(MPI_Comm comm);
 
static inline int
SymPrefix(mpi_calls_are_allowed)(void)
{
  int init_flag = 0, finished_flag = 0;
  return MPI_Initialized(&init_flag) == MPI_SUCCESS && init_flag
    && MPI_Finalized(&finished_flag) == MPI_SUCCESS && !finished_flag;
}
 
#endif
/*
 * Local Variables:
 * license-project-url: "https://www.dkrz.de/redmine/projects/scales-ppm"
 * license-default: "bsd"
 * license-markup: "doxygen"
 * End:
 */