64 строки
2.2 KiB
C
64 строки
2.2 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights 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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/**
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* @file
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*
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* Run-time MCA message buffer interface for packing/unpacking messages
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* these routines are used by both the OOB and the registry.
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*/
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#ifndef OMPI_MCA_BASE_MSGBUF_INTERNAL_H
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#define OMPI_MCA_BASE_MSGBUF_INTERNAL_H
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/*
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* This contains the internal definitions of the MCA message buffer
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* data structures
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*/
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/* this struct is changing to be a opal_object with a opal_list inside! */
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/* and a few locks */
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struct mca_base_msgbuffer_s {
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int msg_buff_id; /* internal ID of this buffer */
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int contiguous; /* if this is a single message buffer */
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int in_use; /* zero if free, else 1 */
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int resizable; /* whether we are allowed to remalloc if needed */
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void* base_ptr; /* start of my memory */
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void* data_ptr; /* location of where next data will go */
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void* from_ptr; /* location of where to get the next data from */
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/* counters */
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size_t size; /* total size of this buffer */
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size_t len; /* total amount already packed */
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size_t space; /* how much space we have left */
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/* yep, size=len+space */
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size_t toend; /* how many bytes till the end when unpacking :) */
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#ifdef MCA_BASE_MSGBUF_PROFILING
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/* specialised counters */
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long times_sent; /* inc each time we send with it, not used? */
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long times_freed; /* how many times has this buffer been freed */
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long times_resized; /* how many times has this buffer been resized */
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#endif /* used for debugging */
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};
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#endif /* OMPI_MCA_BASE_MSGBUF_INTERNAL_H */
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