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openmpi/ompi/mca/btl/mx/btl_mx_frag.h
George Bosilca c9e5ab9ed1 Our macros for the OMPI-level free list had one extra argument, a possible return
value to signal that the operation of retrieving the element from the free list
failed. However in this case the returned pointer was set to NULL as well, so the
error code was redundant. Moreover, this was a continuous source of warnings when
the picky mode is on.

The attached parch remove the rc argument from the OMPI_FREE_LIST_GET and
OMPI_FREE_LIST_WAIT macros, and change to check if the item is NULL instead of
using the return code.

This commit was SVN r28722.
2013-07-04 08:34:37 +00:00

100 строки
3.6 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2013 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef MCA_BTL_MX_FRAG_H
#define MCA_BTL_MX_FRAG_H
#include "ompi_config.h"
#include "ompi/class/ompi_free_list.h"
#include "btl_mx.h"
#define MCA_BTL_MX_SEND 0x01
#define MCA_BTL_MX_RECV 0x02
BEGIN_C_DECLS
struct mca_btl_mx_segment_t {
mca_btl_base_segment_t base;
uint64_t key;
};
typedef struct mca_btl_mx_segment_t mca_btl_mx_segment_t;
/**
* MX send framxent derived type.
*/
struct mca_btl_mx_frag_t {
mca_btl_base_descriptor_t base;
mca_btl_mx_segment_t segment[2];
struct mca_btl_base_endpoint_t* endpoint;
uint8_t type;
mx_request_t mx_request;
size_t size;
ompi_free_list_t* mx_frag_list;
};
typedef struct mca_btl_mx_frag_t mca_btl_mx_frag_t;
OBJ_CLASS_DECLARATION(mca_btl_mx_frag_t);
typedef struct mca_btl_mx_frag_t mca_btl_mx_frag_eager_t;
OBJ_CLASS_DECLARATION(mca_btl_mx_frag_eager_t);
typedef struct mca_btl_mx_frag_t mca_btl_mx_frag_max_t;
OBJ_CLASS_DECLARATION(mca_btl_mx_frag_max_t);
typedef struct mca_btl_mx_frag_t mca_btl_mx_frag_user_t;
OBJ_CLASS_DECLARATION(mca_btl_mx_frag_user_t);
/*
* Macros to allocate/return descriptors from module specific
* free list(s).
*/
#define MCA_BTL_MX_FRAG_ALLOC_EAGER(btl, frag) \
do { \
ompi_free_list_item_t *item; \
OMPI_FREE_LIST_GET( &mca_btl_mx_component.mx_send_eager_frags, item); \
if( OPAL_LIKELY(NULL != item) ) { \
frag = (mca_btl_mx_frag_t*) item; \
frag->mx_frag_list = &(mca_btl_mx_component.mx_send_eager_frags); \
frag->segment[0].base.seg_addr.pval = (void*)(frag+1); \
} \
} while(0)
#define MCA_BTL_MX_FRAG_ALLOC_USER(btl, frag) \
do { \
ompi_free_list_item_t *item; \
OMPI_FREE_LIST_GET( &mca_btl_mx_component.mx_send_user_frags, item); \
if( OPAL_LIKELY(NULL != item) ) { \
frag = (mca_btl_mx_frag_t*) item; \
frag->mx_frag_list = &(mca_btl_mx_component.mx_send_user_frags); \
} \
} while(0)
#define MCA_BTL_MX_FRAG_RETURN(btl, frag) \
do { \
OMPI_FREE_LIST_RETURN( frag->mx_frag_list, \
(ompi_free_list_item_t*)(frag)); \
} while(0)
END_C_DECLS
#endif