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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) 2004-2009 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_SCTP_FRAG_H
#define MCA_BTL_SCTP_FRAG_H
#define MCA_BTL_SCTP_FRAG_ALIGN (8)
#include "ompi_config.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_UIO_H
#include <sys/uio.h>
#endif
#include "btl_sctp.h"
#include "btl_sctp_hdr.h"
BEGIN_C_DECLS
#define MCA_BTL_SCTP_FRAG_IOVEC_NUMBER 4
/**
* SCTP fragment derived type.
*/
struct mca_btl_sctp_frag_t {
mca_btl_base_descriptor_t base;
mca_btl_base_segment_t segments[2];
struct mca_btl_base_endpoint_t *endpoint;
struct mca_btl_sctp_module_t* btl;
mca_btl_sctp_hdr_t hdr;
struct iovec iov[MCA_BTL_SCTP_FRAG_IOVEC_NUMBER + 1];
struct iovec *iov_ptr;
size_t iov_cnt;
size_t iov_idx;
size_t size;
int rc;
ompi_free_list_t* my_list;
};
typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_t;
OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_t);
typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_eager_t;
OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_eager_t);
typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_max_t;
OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_max_t);
typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_user_t;
OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_user_t);
/*
* Macros to allocate/return descriptors from module specific
* free list(s).
*/
#define MCA_BTL_SCTP_FRAG_ALLOC_EAGER(frag, rc) \
{ \
\
ompi_free_list_item_t *item; \
OMPI_FREE_LIST_GET(&mca_btl_sctp_component.sctp_frag_eager, item, rc); \
frag = (mca_btl_sctp_frag_t*) item; \
}
#define MCA_BTL_SCTP_FRAG_ALLOC_MAX(frag, rc) \
{ \
\
ompi_free_list_item_t *item; \
OMPI_FREE_LIST_GET(&mca_btl_sctp_component.sctp_frag_max, item, rc); \
frag = (mca_btl_sctp_frag_t*) item; \
}
#define MCA_BTL_SCTP_FRAG_ALLOC_USER(frag, rc) \
{ \
ompi_free_list_item_t *item; \
OMPI_FREE_LIST_GET(&mca_btl_sctp_component.sctp_frag_user, item, rc); \
frag = (mca_btl_sctp_frag_t*) item; \
}
#define MCA_BTL_SCTP_FRAG_RETURN(frag) \
{ \
OMPI_FREE_LIST_RETURN(frag->my_list, (ompi_free_list_item_t*)(frag)); \
}
#define MCA_BTL_SCTP_FRAG_INIT_DST(frag,ep) \
do { \
frag->rc = 0; \
frag->btl = ep->endpoint_btl; \
frag->endpoint = ep; \
frag->iov[0].iov_len = sizeof(frag->hdr); \
frag->iov[0].iov_base = (IOVBASE_TYPE*)&frag->hdr; \
frag->iov_cnt = 1; \
frag->iov_idx = 0; \
frag->iov_ptr = frag->iov; \
frag->base.des_src = NULL; \
frag->base.des_dst_cnt = 0; \
frag->base.des_dst = frag->segments; \
frag->base.des_dst_cnt = 1; \
} while(0)
#define MCA_BTL_SCTP_MAX_FRAG_SIZE 65536
bool mca_btl_sctp_frag_large_send(mca_btl_sctp_frag_t*, int sd, int iov_fragment, int *amt_sent);
int mca_btl_sctp_frag_get_msg_size(mca_btl_sctp_frag_t *frag);
int mca_btl_sctp_frag_get_msg_tag(mca_btl_sctp_frag_t *frag);
bool mca_btl_sctp_frag_send(mca_btl_sctp_frag_t*, int sd);
bool mca_btl_sctp_frag_recv(mca_btl_sctp_frag_t*, int sd, char *buf, int len);
END_C_DECLS
#endif
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