root/opal/mca/shmem/posix/shmem_posix_common_utils.h

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INCLUDED FROM

   1 /*
   2  * Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana
   3  *                         University Research and Technology
   4  *                         Corporation.  All rights reserved.
   5  * Copyright (c) 2004-2005 The University of Tennessee and The University
   6  *                         of Tennessee Research Foundation.  All rights
   7  *                         reserved.
   8  * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
   9  *                         University of Stuttgart.  All rights reserved.
  10  * Copyright (c) 2004-2005 The Regents of the University of California.
  11  *                         All rights reserved.
  12  * Copyright (c) 2007-2010 Cisco Systems, Inc.  All rights reserved.
  13  * Copyright (c) 2009      Sun Microsystems, Inc.  All rights reserved.
  14  * Copyright (c) 2010      IBM Corporation.  All rights reserved.
  15  * Copyright (c) 2010-2011 Los Alamos National Security, LLC.
  16  *                         All rights reserved.
  17  * $COPYRIGHT$
  18  *
  19  * Additional copyrights may follow
  20  *
  21  * $HEADER$
  22  */
  23 
  24 /**
  25  * @file
  26  *
  27  * shmem (shared memory backing facility) framework utilities
  28  */
  29 
  30 #ifndef OPAL_SHMEM_POSIX_COMMON_UTILS_H
  31 #define OPAL_SHMEM_POSIX_COMMON_UTILS_H
  32 
  33 BEGIN_C_DECLS
  34 
  35 #include "opal_config.h"
  36 
  37 /**
  38  * this routine searches for an available shm_open file name.
  39  *
  40  * @return if successful, a non-negative file descriptor is returned and
  41  * posix_file_name_buff will contain the file name associated with the
  42  * successful shm_open.  otherwise, -1 is returned and the contents of
  43  * posix_file_name_buff are undefined.
  44  */
  45 OPAL_DECLSPEC extern int shmem_posix_shm_open(char *posix_file_name_buff,
  46                                               size_t size);
  47 
  48 END_C_DECLS
  49 
  50 #endif /* OPAL_SHMEM_POSIX_COMMON_UTILS_H */
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