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