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