68 строки
2.3 KiB
C
68 строки
2.3 KiB
C
/*
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* Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2010-2011 Los Alamos National Security, LLC.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef MCA_SHMEM_POSIX_EXPORT_H
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#define MCA_SHMEM_POSIX_EXPORT_H
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#include "opal_config.h"
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#include "opal/mca/mca.h"
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#include "opal/mca/shmem/shmem.h"
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/* max number of attempts to find an available shm_open file name. see
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* comments below for more details.
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*/
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#define OPAL_SHMEM_POSIX_MAX_ATTEMPTS 128
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/* need the '/' for Solaris 10 and others, i'm sure */
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#define OPAL_SHMEM_POSIX_FILE_NAME_PREFIX "/open_mpi."
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/* posix sm file name length max. on some systems shm_open's file name limit
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* is pretty low (32 chars, for instance). 16 is plenty for our needs, but
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* extra work on our end is needed to ensure things work properly. if a
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* system's limit is lower than OPAL_SHMEM_POSIX_FILE_LEN_MAX, then the
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* run-time test will catch that fact and posix sm will be disqualified. see
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* comments regarding this in shmem_posix_module.c.
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*/
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#define OPAL_SHMEM_POSIX_FILE_LEN_MAX 16
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BEGIN_C_DECLS
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/* globally exported variable to hold the posix component. */
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typedef struct opal_shmem_posix_component_t {
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/* base component struct */
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opal_shmem_base_component_t super;
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/* priority for posix component */
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int priority;
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} opal_shmem_posix_component_t;
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OPAL_MODULE_DECLSPEC extern opal_shmem_posix_component_t
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mca_shmem_posix_component;
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typedef struct opal_shmem_posix_module_t {
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opal_shmem_base_module_t super;
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} opal_shmem_posix_module_t;
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extern opal_shmem_posix_module_t opal_shmem_posix_module;
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END_C_DECLS
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#endif /* MCA_SHMEM_POSIX_EXPORT_H */
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