69 строки
2.1 KiB
C
69 строки
2.1 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2013 Sandia National Laboratories. All rights reserved.
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* Copyright (c) 2014 Los Alamos National Security, LLC. All rights
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* 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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* Pending frags are fragments that have been received on the target,
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* but can not yet be processed (because ordering is turned on).
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* Because receive memory descriptors are precious resources, rather
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* than keeping a descriptor until the right sequence number, we
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* instead malloc a buffer (as part of the pending frag) and copy the
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* message.
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*/
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#ifndef OSC_PT2PT_PENDING_FRAG_H
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#define OSC_PT2PT_PENDING_FRAG_H
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/** Incoming fragment that has to be queued */
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struct ompi_osc_pt2pt_pending_frag_t {
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opal_list_item_t super;
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/* This is a pointer to the top of the fragment (which is always
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the header). Save as a header to make the casting a bit less
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onerous during sequence number lookups. */
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ompi_osc_pt2pt_frag_header_t *header;
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};
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typedef struct ompi_osc_pt2pt_pending_frag_t ompi_osc_pt2pt_pending_frag_t;
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OBJ_CLASS_DECLARATION(ompi_osc_pt2pt_pending_frag_t);
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/*
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* Note: module lock must be held during this operation
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*/
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static inline ompi_osc_pt2pt_pending_frag_t*
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ompi_osc_pt2pt_pending_frag_create(ompi_osc_pt2pt_module_t *module,
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void *ptr,
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size_t size)
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{
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size_t total_size = sizeof(ompi_osc_pt2pt_pending_frag_t) + size;
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ompi_osc_pt2pt_pending_frag_t *ret =
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(ompi_osc_pt2pt_pending_frag_t*) malloc(total_size);
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if (NULL == ret) return NULL;
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OBJ_CONSTRUCT(&ret, ompi_osc_pt2pt_pending_frag_t);
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memcpy(ret->header, ptr, size);
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return ret;
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}
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/*
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* Note: module lock must be held for this operation
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*/
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static inline int
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ompi_osc_pt2pt_pending_frag_destroy(ompi_osc_pt2pt_module_t *module,
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ompi_osc_pt2pt_pending_frag_t* frag)
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{
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OBJ_DESTRUCT(&frag);
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free(frag);
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return OMPI_SUCCESS;
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}
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#endif
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