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lib
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x86_64-linux-gnu
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openmpi
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include
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openmpi
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opal
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mca
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shmem
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/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi/opal/mca/shmem
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/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi/opal/mca/shmem/shmem.h
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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */ /* * Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana * University Research and Technology * Corporation. All rights reserved. * Copyright (c) 2004-2005 The University of Tennessee and The University * of Tennessee Research Foundation. All rights * reserved. * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, * University of Stuttgart. All rights reserved. * Copyright (c) 2004-2005 The Regents of the University of California. * All rights reserved. * Copyright (c) 2007-2015 Cisco Systems, Inc. All rights reserved. * Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved. * Copyright (c) 2010 IBM Corporation. All rights reserved. * Copyright (c) 2010-2015 Los Alamos National Security, LLC. * All rights reserved. * $COPYRIGHT$ * * Additional copyrights may follow * * $HEADER$ */ /** * @file * * shmem (shared memory backing facility) framework component interface * definitions. * * usage example: see ompi/mca/common/sm * * The module has the following functions: * * - module_init * - segment_create * - ds_copy * - segment_attach * - segment_detach * - unlink * - module_finalize */ #ifndef OPAL_SHMEM_H #define OPAL_SHMEM_H #include "opal_config.h" #include "opal/mca/mca.h" #include "opal/mca/base/base.h" #include "opal/mca/shmem/shmem_types.h" BEGIN_C_DECLS /* ////////////////////////////////////////////////////////////////////////// */ typedef int (*mca_shmem_base_component_runtime_query_fn_t)(mca_base_module_t **module, int *priority, const char *hint); /* structure for shmem components. */ struct opal_shmem_base_component_2_0_0_t { /* base MCA component */ mca_base_component_t base_version; /* base MCA data */ mca_base_component_data_t base_data; /* component runtime query */ mca_shmem_base_component_runtime_query_fn_t runtime_query; }; /* convenience typedefs */ typedef struct opal_shmem_base_component_2_0_0_t opal_shmem_base_component_2_0_0_t; typedef struct opal_shmem_base_component_2_0_0_t opal_shmem_base_component_t; /* ////////////////////////////////////////////////////////////////////////// */ /* shmem API function pointers */ /** * module initialization function. * @return OPAL_SUCCESS on success. */ typedef int (*opal_shmem_base_module_init_fn_t)(void); /** * copy shmem data structure information pointed to by from to the structure * pointed to by to. * * @param from source pointer (IN). * * @param to destination pointer (OUT). * * @return OPAL_SUCCESS on success. */ typedef int (*opal_shmem_base_ds_copy_fn_t)(const opal_shmem_ds_t *from, opal_shmem_ds_t *to); /** * create a new shared memory segment and initialize members in structure * pointed to by ds_buf. * * @param ds_buf pointer to opal_shmem_ds_t typedef'd structure * defined in shmem_types.h (OUT). * * @param file_name file_name unique string identifier that must be a valid, * writable path (IN). * * @param size size of the shared memory segment. * * @return OPAL_SUCCESS on success. */ typedef int (*opal_shmem_base_module_segment_create_fn_t)(opal_shmem_ds_t *ds_buf, const char *file_name, size_t size); /** * attach to an existing shared memory segment initialized by segment_create. * * @param ds_buf pointer to initialized opal_shmem_ds_t typedef'd * structure (IN/OUT). * * @return base address of shared memory segment on success. returns * NULL otherwise. */ typedef void * (*opal_shmem_base_module_segment_attach_fn_t)(opal_shmem_ds_t *ds_buf); /** * detach from an existing shared memory segment. * * @param ds_buf pointer to initialized opal_shmem_ds_t typedef'd structure * (IN/OUT). * * @return OPAL_SUCCESS on success. */ typedef int (*opal_shmem_base_module_segment_detach_fn_t)(opal_shmem_ds_t *ds_buf); /** * unlink an existing shared memory segment. * * @param ds_buf pointer to initialized opal_shmem_ds_t typedef'd structure * (IN/OUT). * * @return OPAL_SUCCESS on success. */ typedef int (*opal_shmem_base_module_unlink_fn_t)(opal_shmem_ds_t *ds_buf); /** * module finalize function. invoked by the base on the selected * module when the shmem framework is being shut down. */ typedef int (*opal_shmem_base_module_finalize_fn_t)(void); /** * structure for shmem modules */ struct opal_shmem_base_module_2_0_0_t { mca_base_module_t base; opal_shmem_base_module_init_fn_t module_init; opal_shmem_base_module_segment_create_fn_t segment_create; opal_shmem_base_ds_copy_fn_t ds_copy; opal_shmem_base_module_segment_attach_fn_t segment_attach; opal_shmem_base_module_segment_detach_fn_t segment_detach; opal_shmem_base_module_unlink_fn_t unlink; opal_shmem_base_module_finalize_fn_t module_finalize; }; /** * convenience typedefs */ typedef struct opal_shmem_base_module_2_0_0_t opal_shmem_base_module_2_0_0_t; typedef struct opal_shmem_base_module_2_0_0_t opal_shmem_base_module_t; /** * macro for use in components that are of type shmem * see: opal/mca/mca.h for more information */ #define OPAL_SHMEM_BASE_VERSION_2_0_0 \ OPAL_MCA_BASE_VERSION_2_1_0("shmem", 2, 0, 0) END_C_DECLS #endif /* OPAL_SHMEM_H */
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