245 строки
7.4 KiB
C
245 строки
7.4 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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#include "ompi_config.h"
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#include <string.h>
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#include "include/sys/atomic.h"
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#include "class/ompi_proc_table.h"
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#include "mca/pml/base/pml_base_module_exchange.h"
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#include "mca/ns/ns_types.h"
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#include "ptl_tcp.h"
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#include "ptl_tcp_addr.h"
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#include "ptl_tcp_peer.h"
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#include "ptl_tcp_proc.h"
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static void mca_ptl_tcp_proc_construct(mca_ptl_tcp_proc_t* proc);
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static void mca_ptl_tcp_proc_destruct(mca_ptl_tcp_proc_t* proc);
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OBJ_CLASS_INSTANCE(
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mca_ptl_tcp_proc_t,
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opal_list_item_t,
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mca_ptl_tcp_proc_construct,
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mca_ptl_tcp_proc_destruct
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);
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/**
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* Initialize tcp proc instance
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*/
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void mca_ptl_tcp_proc_construct(mca_ptl_tcp_proc_t* proc)
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{
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proc->proc_ompi = 0;
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proc->proc_addrs = 0;
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proc->proc_addr_count = 0;
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proc->proc_peers = 0;
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proc->proc_peer_count = 0;
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OBJ_CONSTRUCT(&proc->proc_lock, opal_mutex_t);
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}
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/*
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* Cleanup tcp proc instance
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*/
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void mca_ptl_tcp_proc_destruct(mca_ptl_tcp_proc_t* proc)
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{
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/* remove from list of all proc instances */
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OPAL_THREAD_LOCK(&mca_ptl_tcp_component.tcp_lock);
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opal_hash_table_remove_proc(&mca_ptl_tcp_component.tcp_procs, &proc->proc_name);
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OPAL_THREAD_UNLOCK(&mca_ptl_tcp_component.tcp_lock);
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/* release resources */
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if(NULL != proc->proc_peers)
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free(proc->proc_peers);
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OBJ_DESTRUCT(&proc->proc_lock);
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}
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/*
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* Create a TCP process structure. There is a one-to-one correspondence
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* between a ompi_proc_t and a mca_ptl_tcp_proc_t instance. We cache additional
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* data (specifically the list of mca_ptl_tcp_peer_t instances, and publiched
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* addresses) associated w/ a given destination on this datastructure.
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*/
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mca_ptl_tcp_proc_t* mca_ptl_tcp_proc_create(ompi_proc_t* ompi_proc)
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{
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int rc;
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size_t size;
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mca_ptl_tcp_proc_t* ptl_proc;
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OPAL_THREAD_LOCK(&mca_ptl_tcp_component.tcp_lock);
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ptl_proc = (mca_ptl_tcp_proc_t*)opal_hash_table_get_proc(
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&mca_ptl_tcp_component.tcp_procs, &ompi_proc->proc_name);
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if(NULL != ptl_proc) {
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OPAL_THREAD_UNLOCK(&mca_ptl_tcp_component.tcp_lock);
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return ptl_proc;
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}
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ptl_proc = OBJ_NEW(mca_ptl_tcp_proc_t);
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if(NULL == ptl_proc)
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return NULL;
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ptl_proc->proc_ompi = ompi_proc;
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ptl_proc->proc_name = ompi_proc->proc_name;
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/* add to hash table of all proc instance */
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opal_hash_table_set_proc(
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&mca_ptl_tcp_component.tcp_procs,
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&ptl_proc->proc_name,
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ptl_proc);
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OPAL_THREAD_UNLOCK(&mca_ptl_tcp_component.tcp_lock);
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/* lookup tcp parameters exported by this proc */
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rc = mca_base_modex_recv( &mca_ptl_tcp_component.super.ptlm_version,
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ompi_proc,
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(void**)&ptl_proc->proc_addrs,
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&size);
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if(rc != OMPI_SUCCESS) {
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opal_output(0, "mca_ptl_tcp_proc_create: mca_base_modex_recv: failed with return value=%d", rc);
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OBJ_RELEASE(ptl_proc);
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return NULL;
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}
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if(0 != (size % sizeof(mca_ptl_tcp_addr_t))) {
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opal_output(0, "mca_ptl_tcp_proc_create: mca_base_modex_recv: invalid size %d\n", size);
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return NULL;
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}
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ptl_proc->proc_addr_count = size / sizeof(mca_ptl_tcp_addr_t);
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/* allocate space for peer array - one for each exported address */
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ptl_proc->proc_peers = (mca_ptl_base_peer_t**)
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malloc(ptl_proc->proc_addr_count * sizeof(mca_ptl_base_peer_t*));
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if(NULL == ptl_proc->proc_peers) {
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OBJ_RELEASE(ptl_proc);
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return NULL;
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}
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if(NULL == mca_ptl_tcp_component.tcp_local && ompi_proc == ompi_proc_local())
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mca_ptl_tcp_component.tcp_local = ptl_proc;
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return ptl_proc;
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}
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/*
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* Look for an existing TCP process instance based on the globally unique
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* process identifier.
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*/
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mca_ptl_tcp_proc_t* mca_ptl_tcp_proc_lookup(const orte_process_name_t *name)
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{
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mca_ptl_tcp_proc_t* proc;
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OPAL_THREAD_LOCK(&mca_ptl_tcp_component.tcp_lock);
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proc = (mca_ptl_tcp_proc_t*)opal_hash_table_get_proc(
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&mca_ptl_tcp_component.tcp_procs, name);
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OPAL_THREAD_UNLOCK(&mca_ptl_tcp_component.tcp_lock);
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return proc;
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}
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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/*
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* Note that this routine must be called with the lock on the process already
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* held. Insert a ptl instance into the proc array and assign it an address.
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*/
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int mca_ptl_tcp_proc_insert(mca_ptl_tcp_proc_t* ptl_proc, mca_ptl_base_peer_t* ptl_peer)
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{
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struct mca_ptl_tcp_module_t *ptl_tcp = ptl_peer->peer_ptl;
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size_t i;
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unsigned long net1;
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/* insert into peer array */
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ptl_peer->peer_proc = ptl_proc;
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ptl_proc->proc_peers[ptl_proc->proc_peer_count++] = ptl_peer;
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net1 = ptl_tcp->ptl_ifaddr.sin_addr.s_addr & ptl_tcp->ptl_ifmask.sin_addr.s_addr;
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/*
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* Look through the proc instance for an address that is on the
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* directly attached network. If we don't find one, pick the first
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* unused address.
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*/
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for(i=0; i<ptl_proc->proc_addr_count; i++) {
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mca_ptl_tcp_addr_t* peer_addr = ptl_proc->proc_addrs + i;
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unsigned long net2 = peer_addr->addr_inet.s_addr & ptl_tcp->ptl_ifmask.sin_addr.s_addr;
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if(peer_addr->addr_inuse != 0)
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continue;
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if(net1 == net2) {
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ptl_peer->peer_addr = peer_addr;
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break;
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} else if(ptl_peer->peer_addr != 0)
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ptl_peer->peer_addr = peer_addr;
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}
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/* Make sure there is a common interface */
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if( NULL != ptl_peer->peer_addr ) {
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ptl_peer->peer_addr->addr_inuse++;
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return OMPI_SUCCESS;
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}
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return OMPI_ERR_UNREACH;
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}
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/*
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* Remove a peer from the proc array and indicate the address is
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* no longer in use.
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*/
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int mca_ptl_tcp_proc_remove(mca_ptl_tcp_proc_t* ptl_proc, mca_ptl_base_peer_t* ptl_peer)
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{
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size_t i;
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OPAL_THREAD_LOCK(&ptl_proc->proc_lock);
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for(i=0; i<ptl_proc->proc_peer_count; i++) {
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if(ptl_proc->proc_peers[i] == ptl_peer) {
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memmove(ptl_proc->proc_peers+i, ptl_proc->proc_peers+i+1,
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(ptl_proc->proc_peer_count-i-1)*sizeof(mca_ptl_base_peer_t*));
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if(--ptl_proc->proc_peer_count == 0) {
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OPAL_THREAD_UNLOCK(&ptl_proc->proc_lock);
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OBJ_RELEASE(ptl_proc);
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return OMPI_SUCCESS;
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}
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ptl_peer->peer_addr->addr_inuse--;
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break;
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}
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}
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OPAL_THREAD_UNLOCK(&ptl_proc->proc_lock);
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return OMPI_SUCCESS;
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}
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/*
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* loop through all available PTLs for one matching the source address
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* of the request.
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*/
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bool mca_ptl_tcp_proc_accept(mca_ptl_tcp_proc_t* ptl_proc, struct sockaddr_in* addr, int sd)
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{
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size_t i;
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OPAL_THREAD_LOCK(&ptl_proc->proc_lock);
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for(i=0; i<ptl_proc->proc_peer_count; i++) {
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mca_ptl_base_peer_t* ptl_peer = ptl_proc->proc_peers[i];
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if(mca_ptl_tcp_peer_accept(ptl_peer, addr, sd)) {
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OPAL_THREAD_UNLOCK(&ptl_proc->proc_lock);
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return true;
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}
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}
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OPAL_THREAD_UNLOCK(&ptl_proc->proc_lock);
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return false;
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}
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