ports/openmpi
ports/openmpi
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b60bea9ada
openmpi/orte/mca/oob/tcp/oob_tcp.c
Tim Woodall b60bea9ada dont allow callbacks to processed recursively - appear to be blowing away the stack 
This commit was SVN r7862.
2005-10-25 13:48:08 +00:00

1049 строки
34 KiB
C
Исходник Ответственный История

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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
*
* $HEADER$
*/
#include "ompi_config.h"
#include "include/orte_types.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <fcntl.h>
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include "include/ompi_socket_errno.h"
#include "opal/util/output.h"
#include "opal/util/if.h"
#include "orte/class/orte_proc_table.h"
#include "mca/oob/tcp/oob_tcp.h"
#include "mca/errmgr/errmgr.h"
#include "mca/ns/ns.h"
#include "mca/gpr/gpr.h"
#define IMPORTANT_WINDOWS_COMMENT() \
/* In windows, many of the socket functions return an EWOULDBLOCK instead of \
things like EAGAIN, EINPROGRESS, etc. It has been verified that this will \
not conflict with other error codes that are returned by these functions \
under UNIX/Linux environments */
/*
* Data structure for accepting connections.
*/
struct mca_oob_tcp_event_t {
opal_list_item_t item;
opal_event_t event;
};
typedef struct mca_oob_tcp_event_t mca_oob_tcp_event_t;
static void mca_oob_tcp_event_construct(mca_oob_tcp_event_t* event)
{
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
opal_list_append(&mca_oob_tcp_component.tcp_events, &event->item);
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
}
static void mca_oob_tcp_event_destruct(mca_oob_tcp_event_t* event)
{
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
opal_list_remove_item(&mca_oob_tcp_component.tcp_events, &event->item);
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
}
OBJ_CLASS_INSTANCE(
mca_oob_tcp_event_t,
opal_list_item_t,
mca_oob_tcp_event_construct,
mca_oob_tcp_event_destruct);
/*
* Local utility functions
*/
static int mca_oob_tcp_create_listen(void);
static void mca_oob_tcp_recv_handler(int sd, short flags, void* user);
static void mca_oob_tcp_accept(void);
struct mca_oob_tcp_subscription_t {
opal_list_item_t item;
orte_jobid_t jobid;
orte_gpr_subscription_id_t subid;
};
typedef struct mca_oob_tcp_subscription_t mca_oob_tcp_subscription_t;
OBJ_CLASS_INSTANCE(
mca_oob_tcp_subscription_t,
opal_list_item_t,
NULL,
NULL);
/*
* Struct of function pointers and all that to let us be initialized
*/
mca_oob_tcp_component_t mca_oob_tcp_component = {
{
{
MCA_OOB_BASE_VERSION_1_0_0,
"tcp", /* MCA module name */
1, /* MCA component major version */
0, /* MCA component minor version */
0, /* MCA component release version */
mca_oob_tcp_component_open, /* component open */
mca_oob_tcp_component_close /* component close */
},
{
false /* checkpoint / restart */
},
mca_oob_tcp_component_init
}
};
static mca_oob_t mca_oob_tcp = {
mca_oob_tcp_get_addr,
mca_oob_tcp_set_addr,
mca_oob_tcp_ping,
mca_oob_tcp_send,
mca_oob_tcp_recv,
mca_oob_tcp_send_nb,
mca_oob_tcp_recv_nb,
mca_oob_tcp_recv_cancel,
mca_oob_tcp_init,
mca_oob_tcp_fini,
mca_oob_xcast
};
/*
* Utility function to register/lookup module parameters.
*/
static inline int mca_oob_tcp_param_register_int(
const char* param_name,
int default_value)
{
int id = mca_base_param_register_int("oob","tcp",param_name,NULL,default_value);
int param_value = default_value;
mca_base_param_lookup_int(id,&param_value);
return param_value;
}
static inline char* mca_oob_tcp_param_register_str(
const char* param_name,
const char* default_value)
{
int id = mca_base_param_register_string("oob","tcp",param_name,NULL,default_value);
char* param_value = NULL;
mca_base_param_lookup_string(id,&param_value);
return param_value;
}
/*
* Initialize global variables used w/in this module.
*/
int mca_oob_tcp_component_open(void)
{
#ifdef WIN32
WSADATA win_sock_data;
if (WSAStartup(MAKEWORD(2,2), &win_sock_data) != 0) {
opal_output (0, "mca_oob_tcp_component_init: failed to initialise windows sockets: error %d\n", WSAGetLastError());
return OMPI_ERROR;
}
#endif
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_subscriptions, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_peer_list, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_peers, opal_hash_table_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_peer_names, opal_hash_table_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_peer_free, opal_free_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_msgs, opal_free_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_lock, opal_mutex_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_events, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_msg_post, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_msg_recv, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_msg_completed, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_match_lock, opal_mutex_t);
OBJ_CONSTRUCT(&mca_oob_tcp_component.tcp_match_cond, opal_condition_t);
/* register oob module parameters */
mca_oob_tcp_component.tcp_peer_limit =
mca_oob_tcp_param_register_int("peer_limit", -1);
mca_oob_tcp_component.tcp_peer_retries =
mca_oob_tcp_param_register_int("peer_retries", 60);
mca_oob_tcp_component.tcp_debug =
mca_oob_tcp_param_register_int("debug", 0);
mca_oob_tcp_component.tcp_include =
mca_oob_tcp_param_register_str("include", NULL);
mca_oob_tcp_component.tcp_exclude =
mca_oob_tcp_param_register_str("exclude", NULL);
/* initialize state */
mca_oob_tcp_component.tcp_listen_sd = -1;
mca_oob_tcp_component.tcp_match_count = 0;
return OMPI_SUCCESS;
}
/*
* Cleanup of global variables used by this module.
*/
int mca_oob_tcp_component_close(void)
{
#ifdef WIN32
WSACleanup();
#endif
/* cleanup resources */
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_peer_list);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_peers);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_peer_names);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_peer_free);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_events);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_subscriptions);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_msgs);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_lock);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_msg_post);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_msg_recv);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_msg_completed);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_match_lock);
OBJ_DESTRUCT(&mca_oob_tcp_component.tcp_match_cond);
return OMPI_SUCCESS;
}
/*
* Called by mca_oob_tcp_recv_handler() when the TCP listen
* socket has pending connection requests. Accept incoming
* requests and queue for completion of the connection handshake.
*/
static void mca_oob_tcp_accept(void)
{
while(true) {
ompi_socklen_t addrlen = sizeof(struct sockaddr_in);
struct sockaddr_in addr;
mca_oob_tcp_event_t* event;
int sd;
sd = accept(mca_oob_tcp_component.tcp_listen_sd, (struct sockaddr*)&addr, &addrlen);
if(sd < 0) {
IMPORTANT_WINDOWS_COMMENT();
if(ompi_socket_errno == EINTR)
continue;
if(ompi_socket_errno != EAGAIN || ompi_socket_errno != EWOULDBLOCK)
opal_output(0, "mca_oob_tcp_accept: accept() failed with errno %d.", ompi_socket_errno);
return;
}
/* log the accept */
if(mca_oob_tcp_component.tcp_debug) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_accept: %s:%d\n",
ORTE_NAME_ARGS(orte_process_info.my_name),
inet_ntoa(addr.sin_addr),
addr.sin_port);
}
/* wait for receipt of peers process identifier to complete this connection */
event = OBJ_NEW(mca_oob_tcp_event_t);
opal_event_set(&event->event, sd, OPAL_EV_READ, mca_oob_tcp_recv_handler, event);
opal_event_add(&event->event, 0);
}
}
/*
* Create a listen socket and bind to all interfaces
*/
static int mca_oob_tcp_create_listen(void)
{
int flags;
struct sockaddr_in inaddr;
ompi_socklen_t addrlen;
/* create a listen socket for incoming connections */
mca_oob_tcp_component.tcp_listen_sd = socket(AF_INET, SOCK_STREAM, 0);
if(mca_oob_tcp_component.tcp_listen_sd < 0) {
opal_output(0,"mca_oob_tcp_component_init: socket() failed with errno=%d", ompi_socket_errno);
return OMPI_ERROR;
}
memset(&inaddr, 0, sizeof(inaddr));
inaddr.sin_family = AF_INET;
inaddr.sin_addr.s_addr = INADDR_ANY;
inaddr.sin_port = 0;
if(bind(mca_oob_tcp_component.tcp_listen_sd, (struct sockaddr*)&inaddr, sizeof(inaddr)) < 0) {
opal_output(0,"mca_oob_tcp_create_listen: bind() failed with errno=%d", ompi_socket_errno);
return OMPI_ERROR;
}
/* resolve system assigned port */
addrlen = sizeof(struct sockaddr_in);
if(getsockname(mca_oob_tcp_component.tcp_listen_sd, (struct sockaddr*)&inaddr, &addrlen) < 0) {
opal_output(0, "mca_oob_tcp_create_listen: getsockname() failed with errno=%d", ompi_socket_errno);
return OMPI_ERROR;
}
mca_oob_tcp_component.tcp_listen_port = inaddr.sin_port;
/* setup listen backlog to maximum allowed by kernel */
if(listen(mca_oob_tcp_component.tcp_listen_sd, SOMAXCONN) < 0) {
opal_output(0, "mca_oob_tcp_component_init: listen() failed with errno=%d", ompi_socket_errno);
return OMPI_ERROR;
}
/* set socket up to be non-blocking, otherwise accept could block */
if((flags = fcntl(mca_oob_tcp_component.tcp_listen_sd, F_GETFL, 0)) < 0) {
opal_output(0, "mca_oob_tcp_component_init: fcntl(F_GETFL) failed with errno=%d", ompi_socket_errno);
return OMPI_ERROR;
} else {
flags |= O_NONBLOCK;
if(fcntl(mca_oob_tcp_component.tcp_listen_sd, F_SETFL, flags) < 0) {
opal_output(0, "mca_oob_tcp_component_init: fcntl(F_SETFL) failed with errno=%d", ompi_socket_errno);
return OMPI_ERROR;
}
}
/* register listen port */
opal_event_set(
&mca_oob_tcp_component.tcp_recv_event,
mca_oob_tcp_component.tcp_listen_sd,
OPAL_EV_READ|OPAL_EV_PERSIST,
mca_oob_tcp_recv_handler,
0);
opal_event_add(&mca_oob_tcp_component.tcp_recv_event, 0);
return OMPI_SUCCESS;
}
/*
* Handle probe
*/
static void mca_oob_tcp_recv_probe(int sd, mca_oob_tcp_hdr_t* hdr)
{
unsigned char* ptr = (unsigned char*)hdr;
size_t cnt = 0;
hdr->msg_type = MCA_OOB_TCP_PROBE;
hdr->msg_dst = hdr->msg_src;
hdr->msg_src = *orte_process_info.my_name;
MCA_OOB_TCP_HDR_HTON(hdr);
while(cnt < sizeof(mca_oob_tcp_hdr_t)) {
int retval = send(sd, (char *)ptr+cnt, sizeof(mca_oob_tcp_hdr_t)-cnt, 0);
if(retval < 0) {
IMPORTANT_WINDOWS_COMMENT();
if(ompi_socket_errno != EINTR && ompi_socket_errno != EAGAIN && ompi_socket_errno != EWOULDBLOCK) {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_peer_recv_probe: send() failed with errno=%d\n",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(hdr->msg_src)),
ompi_socket_errno);
close(sd);
return;
}
continue;
}
cnt += retval;
}
close(sd);
}
/*
* Handle connection request
*/
static void mca_oob_tcp_recv_connect(int sd, mca_oob_tcp_hdr_t* hdr)
{
mca_oob_tcp_peer_t* peer;
int flags;
int cmpval;
/* now set socket up to be non-blocking */
if((flags = fcntl(sd, F_GETFL, 0)) < 0) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_recv_handler: fcntl(F_GETFL) failed with errno=%d",
ORTE_NAME_ARGS(orte_process_info.my_name), ompi_socket_errno);
} else {
flags |= O_NONBLOCK;
if(fcntl(sd, F_SETFL, flags) < 0) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_recv_handler: fcntl(F_SETFL) failed with errno=%d",
ORTE_NAME_ARGS(orte_process_info.my_name), ompi_socket_errno);
}
}
/* check for wildcard name - if this is true - we allocate a name from the name server
* and return to the peer
*/
cmpval = orte_ns.compare(ORTE_NS_CMP_ALL, &hdr->msg_src, MCA_OOB_NAME_ANY);
if (cmpval == 0) {
if (ORTE_SUCCESS != orte_ns.create_jobid(&hdr->msg_src.jobid)) {
return;
}
if (ORTE_SUCCESS != orte_ns.reserve_range(hdr->msg_src.jobid, 1, &hdr->msg_src.vpid)) {
return;
}
if (ORTE_SUCCESS != orte_ns.assign_cellid_to_process(&hdr->msg_src)) {
return;
}
}
/* lookup the corresponding process */
peer = mca_oob_tcp_peer_lookup(&hdr->msg_src);
if(NULL == peer) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_recv_handler: unable to locate peer",
ORTE_NAME_ARGS(orte_process_info.my_name));
close(sd);
return;
}
/* is the peer instance willing to accept this connection */
if(mca_oob_tcp_peer_accept(peer, sd) == false) {
if(mca_oob_tcp_component.tcp_debug > 0) {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_recv_handler: "
"rejected connection from [%lu,%lu,%lu] connection state %d",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)),
ORTE_NAME_ARGS(&(hdr->msg_src)),
peer->peer_state);
}
close(sd);
return;
}
}
/*
* Event callback when there is data available on the registered
* socket to recv.
*/
static void mca_oob_tcp_recv_handler(int sd, short flags, void* user)
{
mca_oob_tcp_hdr_t hdr;
mca_oob_tcp_event_t* event = (mca_oob_tcp_event_t *)user;
int rc;
/* accept new connections on the listen socket */
if(mca_oob_tcp_component.tcp_listen_sd == sd) {
mca_oob_tcp_accept();
return;
}
OBJ_RELEASE(event);
/* recv the process identifier */
while((rc = recv(sd, (char *)&hdr, sizeof(hdr), 0)) != sizeof(hdr)) {
if(rc >= 0) {
if(mca_oob_tcp_component.tcp_debug > 1) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_recv_handler: peer closed connection",
ORTE_NAME_ARGS(orte_process_info.my_name));
}
close(sd);
return;
}
if(ompi_socket_errno != EINTR) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_recv_handler: recv() failed with errno=%d\n",
ORTE_NAME_ARGS(orte_process_info.my_name), ompi_socket_errno);
close(sd);
return;
}
}
MCA_OOB_TCP_HDR_NTOH(&hdr);
/* dispatch based on message type */
switch(hdr.msg_type) {
case MCA_OOB_TCP_PROBE:
mca_oob_tcp_recv_probe(sd, &hdr);
break;
case MCA_OOB_TCP_CONNECT:
mca_oob_tcp_recv_connect(sd, &hdr);
break;
default:
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_recv_handler: invalid message type: %d\n",
ORTE_NAME_ARGS(orte_process_info.my_name), hdr.msg_type);
close(sd);
break;
}
}
/*
* Component initialization - create a module.
* (1) initialize static resources
* (2) create listen socket
*/
mca_oob_t* mca_oob_tcp_component_init(int* priority)
{
*priority = 1;
/* are there any interfaces? */
if(opal_ifcount() == 0)
return NULL;
/* initialize data structures */
opal_hash_table_init(&mca_oob_tcp_component.tcp_peers, 128);
opal_hash_table_init(&mca_oob_tcp_component.tcp_peer_names, 128);
opal_free_list_init(&mca_oob_tcp_component.tcp_peer_free,
sizeof(mca_oob_tcp_peer_t),
OBJ_CLASS(mca_oob_tcp_peer_t),
8, /* initial number */
mca_oob_tcp_component.tcp_peer_limit, /* maximum number */
8); /* increment to grow by */
opal_free_list_init(&mca_oob_tcp_component.tcp_msgs,
sizeof(mca_oob_tcp_msg_t),
OBJ_CLASS(mca_oob_tcp_msg_t),
8, /* initial number */
-1, /* maximum number */
8); /* increment to grow by */
/* intialize event library */
memset(&mca_oob_tcp_component.tcp_recv_event, 0, sizeof(opal_event_t));
memset(&mca_oob_tcp_component.tcp_send_event, 0, sizeof(opal_event_t));
/* create a listen socket */
if(mca_oob_tcp_create_listen() != OMPI_SUCCESS) {
opal_output(0, "mca_oob_tcp_init: unable to create listen socket\n");
return NULL;
}
return &mca_oob_tcp;
}
/*
* Callback from registry on change to subscribed segments.
*/
void mca_oob_tcp_registry_callback(
orte_gpr_notify_data_t* data,
void* cbdata)
{
size_t i, j, k;
orte_gpr_value_t **values, *value;
orte_gpr_keyval_t *keyval;
orte_buffer_t buffer;
mca_oob_tcp_addr_t* addr, *existing;
mca_oob_tcp_peer_t* peer;
if(mca_oob_tcp_component.tcp_debug > 1) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_registry_callback\n",
ORTE_NAME_ARGS(orte_process_info.my_name));
}
/* process the callback */
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
values = (orte_gpr_value_t**)(data->values)->addr;
for(i = 0, k=0; k < data->cnt &&
i < (data->values)->size; i++) {
if (NULL != values[i]) {
k++;
value = values[i];
for(j = 0; j < value->cnt; j++) {
/* check to make sure this is the requested key */
keyval = value->keyvals[j];
if(strcmp(keyval->key,"oob-tcp") != 0)
continue;
/* transfer ownership of registry object to buffer and unpack */
OBJ_CONSTRUCT(&buffer, orte_buffer_t);
if(orte_dps.load(&buffer,
keyval->value.byteobject.bytes,
keyval->value.byteobject.size) != ORTE_SUCCESS) {
/* TSW - throw ERROR */
continue;
}
keyval->type = ORTE_NULL;
keyval->value.byteobject.bytes = NULL;
keyval->value.byteobject.size = 0;
addr = mca_oob_tcp_addr_unpack(&buffer);
OBJ_DESTRUCT(&buffer);
if(NULL == addr) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_registry_callback: unable to unpack peer address\n",
ORTE_NAME_ARGS(orte_process_info.my_name));
continue;
}
if(mca_oob_tcp_component.tcp_debug > 1) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_registry_callback: received peer [%lu,%lu,%lu]\n",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(addr->addr_name)));
}
/* check for existing cache entry */
existing = (mca_oob_tcp_addr_t *)orte_hash_table_get_proc(
&mca_oob_tcp_component.tcp_peer_names, &addr->addr_name);
if(NULL != existing) {
/* TSW - need to update existing entry */
OBJ_RELEASE(addr);
continue;
}
/* insert into cache and notify peer */
orte_hash_table_set_proc(&mca_oob_tcp_component.tcp_peer_names, &addr->addr_name, addr);
peer = (mca_oob_tcp_peer_t *)orte_hash_table_get_proc(
&mca_oob_tcp_component.tcp_peers, &addr->addr_name);
if(NULL != peer)
mca_oob_tcp_peer_resolved(peer, addr);
}
}
}
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
}
/*
* Attempt to resolve peer name.
*/
int mca_oob_tcp_resolve(mca_oob_tcp_peer_t* peer)
{
mca_oob_tcp_addr_t* addr;
mca_oob_tcp_subscription_t* subscription;
char *segment, *sub_name, *trig_name;
char *key="oob-tcp";
orte_gpr_subscription_id_t sub_id;
opal_list_item_t* item;
int rc;
/* if the address is already cached - simply return it */
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
addr = (mca_oob_tcp_addr_t *)orte_hash_table_get_proc(&mca_oob_tcp_component.tcp_peer_names,
&peer->peer_name);
if(NULL != addr) {
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
mca_oob_tcp_peer_resolved(peer, addr);
return OMPI_SUCCESS;
}
/* check to see if we have subscribed to this registry segment */
for( item = opal_list_get_first(&mca_oob_tcp_component.tcp_subscriptions);
item != opal_list_get_end(&mca_oob_tcp_component.tcp_subscriptions);
item = opal_list_get_next(item)) {
subscription = (mca_oob_tcp_subscription_t*)item;
if(subscription->jobid == peer->peer_name.jobid) {
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
return OMPI_SUCCESS;
}
}
if (ORTE_SUCCESS != (rc = orte_schema.get_std_subscription_name(&sub_name,
OMPI_OOB_SUBSCRIPTION, peer->peer_name.jobid))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* attach to the stage-1 standard trigger */
if (ORTE_SUCCESS != (rc = orte_schema.get_std_trigger_name(&trig_name,
ORTE_STG1_TRIGGER, peer->peer_name.jobid))) {
ORTE_ERROR_LOG(rc);
free(sub_name);
return rc;
}
/* define the segment */
if (ORTE_SUCCESS != (rc = orte_schema.get_job_segment_name(&segment,
peer->peer_name.jobid))) {
ORTE_ERROR_LOG(rc);
free(sub_name);
free(trig_name);
return rc;
}
/* If we do not release the mutex before the subscrition we will deadlock
* as the suscription involve oob_tcp_send who involve again a lookup
* call. Before unlocking the mutex (just to be protected by it) we can
* create the subscription and add it to the list.
*/
subscription = OBJ_NEW(mca_oob_tcp_subscription_t);
subscription->jobid = peer->peer_name.jobid;
opal_list_append(&mca_oob_tcp_component.tcp_subscriptions, &subscription->item);
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
if (ORTE_SUCCESS != (rc = orte_gpr.subscribe_1(&sub_id, NULL, NULL,
ORTE_GPR_NOTIFY_ADD_ENTRY |
ORTE_GPR_NOTIFY_VALUE_CHG |
ORTE_GPR_NOTIFY_PRE_EXISTING,
ORTE_GPR_KEYS_OR | ORTE_GPR_TOKENS_OR,
segment,
NULL, /* look at all containers on this segment */
key,
mca_oob_tcp_registry_callback, NULL))) {
ORTE_ERROR_LOG(rc);
free(sub_name);
free(trig_name);
free(segment);
/* Subscription registration failed, we should activate the cleaning logic:
* remove the subscription from the list (protected by the mutex).
*/
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
opal_list_remove_item( &mca_oob_tcp_component.tcp_subscriptions,
&subscription->item );
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
return rc;
}
/* the id of each subscription is recorded
* here so we can (if desired) cancel that subscription later
*/
subscription->subid = sub_id;
/* done with these, so release any memory */
free(trig_name);
free(sub_name);
free(segment);
return rc;
}
/*
* Setup contact information in the registry.
*/
int mca_oob_tcp_init(void)
{
orte_jobid_t jobid;
orte_buffer_t *buffer;
orte_gpr_subscription_id_t sub_id;
char *sub_name, *segment, *trig_name, **tokens;
char *keys[] = {"oob-tcp", ORTE_PROC_RML_IP_ADDRESS_KEY};
orte_data_type_t types[2];
orte_gpr_value_union_t values[2];
mca_oob_tcp_subscription_t *subscription;
int rc;
opal_list_item_t* item;
char *tmp, *tmp2, *tmp3;
size_t i, num_tokens;
/* random delay to stagger connections back to seed */
#if defined(WIN32)
sleep((orte_process_info.my_name->vpid % orte_process_info.num_procs % 1000) * 1000);
#else
usleep((orte_process_info.my_name->vpid % orte_process_info.num_procs % 1000) * 1000);
#endif
/* get my jobid */
if (ORTE_SUCCESS != (rc = orte_ns.get_jobid(&jobid,
orte_process_info.my_name))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* iterate through the open connections and send an ident message to all peers -
* note that we initially come up w/out knowing our process name - and are assigned
* a temporary name by our peer. once we have determined our real name - we send it
* to the peer.
*/
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
for(item = opal_list_get_first(&mca_oob_tcp_component.tcp_peer_list);
item != opal_list_get_end(&mca_oob_tcp_component.tcp_peer_list);
item = opal_list_get_next(item)) {
mca_oob_tcp_peer_t* peer = (mca_oob_tcp_peer_t*)item;
mca_oob_tcp_peer_send_ident(peer);
}
/* register subscribe callback to receive notification when all processes have registered */
subscription = OBJ_NEW(mca_oob_tcp_subscription_t);
subscription->jobid = jobid;
opal_list_append(&mca_oob_tcp_component.tcp_subscriptions, &subscription->item);
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
if(mca_oob_tcp_component.tcp_debug > 2) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_init: calling orte_gpr.subscribe\n",
ORTE_NAME_ARGS(orte_process_info.my_name));
}
if (ORTE_SUCCESS != (rc = orte_schema.get_std_subscription_name(&sub_name,
OMPI_OOB_SUBSCRIPTION, jobid))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* attach to the stage-1 standard trigger */
if (ORTE_SUCCESS != (rc = orte_schema.get_std_trigger_name(&trig_name,
ORTE_STG1_TRIGGER, jobid))) {
ORTE_ERROR_LOG(rc);
free(sub_name);
return rc;
}
/* define the segment */
if (ORTE_SUCCESS != (rc = orte_schema.get_job_segment_name(&segment, jobid))) {
ORTE_ERROR_LOG(rc);
free(sub_name);
free(trig_name);
return rc;
}
if (ORTE_SUCCESS != (rc = orte_gpr.subscribe_1(&sub_id, trig_name, sub_name,
ORTE_GPR_NOTIFY_ADD_ENTRY |
ORTE_GPR_NOTIFY_VALUE_CHG |
ORTE_GPR_NOTIFY_STARTS_AFTER_TRIG,
ORTE_GPR_KEYS_OR | ORTE_GPR_TOKENS_OR,
segment,
NULL, /* look at all containers on this segment */
keys[0],
mca_oob_tcp_registry_callback, NULL))) {
ORTE_ERROR_LOG(rc);
free(sub_name);
free(trig_name);
free(segment);
return rc;
}
/* the id of each subscription is recorded
* here so we can (if desired) cancel that subscription later
*/
subscription->subid = sub_id;
/* done with these, so release any memory */
free(trig_name);
free(sub_name);
/* now setup to put our contact info on registry */
buffer = OBJ_NEW(orte_buffer_t);
if(buffer == NULL) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
if (ORTE_SUCCESS != (rc = mca_oob_tcp_addr_pack(buffer))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(buffer);
return rc;
}
/* extract payload for storage */
types[0] = ORTE_BYTE_OBJECT;
if (ORTE_SUCCESS != (rc = orte_dps.unload(buffer, (void**)&(values[0].byteobject.bytes),
&(values[0].byteobject.size)))) {
ORTE_ERROR_LOG(rc);
free(segment);
OBJ_RELEASE(buffer);
return rc;
}
OBJ_RELEASE(buffer);
/* setup the IP address for storage */
tmp = mca_oob.oob_get_addr();
tmp2 = strrchr(tmp, '/') + 1;
tmp3 = strrchr(tmp, ':');
if(NULL == tmp2 || NULL == tmp3) {
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_init: invalid address \'%s\' "
"returned for selected oob interfaces.\n",
ORTE_NAME_ARGS(orte_process_info.my_name), tmp);
ORTE_ERROR_LOG(ORTE_ERROR);
free(segment);
free(tmp);
free(values[0].byteobject.bytes);
return ORTE_ERROR;
}
*tmp3 = '\0';
types[1] = ORTE_STRING;
values[1].strptr = strdup(tmp2);
free(tmp);
/* get the process tokens */
if (ORTE_SUCCESS != (rc = orte_schema.get_proc_tokens(&tokens, &num_tokens,
orte_process_info.my_name))) {
ORTE_ERROR_LOG(rc);
free(segment);
free(values[0].byteobject.bytes);
free(values[1].strptr);
return rc;
}
/* put our contact info in registry */
if (ORTE_SUCCESS != (rc = orte_gpr.put_N(ORTE_GPR_OVERWRITE | ORTE_GPR_TOKENS_XAND,
segment, tokens, 2, keys, types, values))) {
ORTE_ERROR_LOG(rc);
}
free(segment);
for(i=0; i < num_tokens; i++) {
free(tokens[i]);
tokens[i] = NULL;
}
if (NULL != tokens) free(tokens);
free(values[0].byteobject.bytes);
free(values[1].strptr);
return rc;
}
/*
* Module cleanup.
*/
int mca_oob_tcp_fini(void)
{
opal_list_item_t *item;
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
opal_event_disable(); /* disable event processing */
/* close listen socket */
if (mca_oob_tcp_component.tcp_listen_sd >= 0) {
opal_event_del(&mca_oob_tcp_component.tcp_recv_event);
close(mca_oob_tcp_component.tcp_listen_sd);
mca_oob_tcp_component.tcp_listen_sd = -1;
}
/* cleanup all peers */
for(item = opal_list_remove_first(&mca_oob_tcp_component.tcp_peer_list);
item != NULL;
item = opal_list_remove_first(&mca_oob_tcp_component.tcp_peer_list)) {
mca_oob_tcp_peer_t* peer = (mca_oob_tcp_peer_t*)item;
MCA_OOB_TCP_PEER_RETURN(peer);
}
/* delete any pending events */
for(item = opal_list_remove_first(&mca_oob_tcp_component.tcp_events);
item != NULL;
item = opal_list_remove_first(&mca_oob_tcp_component.tcp_events)) {
mca_oob_tcp_event_t* event = (mca_oob_tcp_event_t*)item;
opal_event_del(&event->event);
OBJ_RELEASE(event);
}
opal_event_enable();
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
return OMPI_SUCCESS;
}
/*
* Compare two process names for equality.
*
* @param n1 Process name 1.
* @param n2 Process name 2.
* @return (-1 for n1<n2 0 for equality, 1 for n1>n2)
*
* Note that the definition of < or > is somewhat arbitrary -
* just needs to be consistently applied to maintain an ordering
* when process names are used as indices.
*/
int mca_oob_tcp_process_name_compare(const orte_process_name_t* n1, const orte_process_name_t* n2)
{
return orte_ns.compare(ORTE_NS_CMP_ALL, n1, n2);
}
/*
* Return local process address as a URI string.
*/
char* mca_oob_tcp_get_addr(void)
{
int i;
char *contact_info = (char *)malloc((opal_ifcount()+1) * 32);
char *ptr = contact_info;
*ptr = 0;
for(i=opal_ifbegin(); i>0; i=opal_ifnext(i)) {
struct sockaddr_in addr;
char name[32];
opal_ifindextoname(i, name, sizeof(name));
if (mca_oob_tcp_component.tcp_include != NULL &&
strstr(mca_oob_tcp_component.tcp_include,name) == NULL)
continue;
if (mca_oob_tcp_component.tcp_exclude != NULL &&
strstr(mca_oob_tcp_component.tcp_exclude,name) != NULL)
continue;
opal_ifindextoaddr(i, (struct sockaddr*)&addr, sizeof(addr));
if(opal_ifcount() > 1 && addr.sin_addr.s_addr == inet_addr("127.0.0.1"))
continue;
if(ptr != contact_info) {
ptr += sprintf(ptr, ";");
}
ptr += sprintf(ptr, "tcp://%s:%d", inet_ntoa(addr.sin_addr),
ntohs(mca_oob_tcp_component.tcp_listen_port));
}
return contact_info;
}
/*
* Parse a URI string into an IP address and port number.
*/
int mca_oob_tcp_parse_uri(const char* uri, struct sockaddr_in* inaddr)
{
char* tmp = strdup(uri);
char* ptr = tmp + 6;
char* addr = ptr;
char* port;
if(strncmp(tmp, "tcp://", 6) != 0) {
free(tmp);
return OMPI_ERR_BAD_PARAM;
}
ptr = strchr(addr, ':');
if(NULL == ptr) {
free(tmp);
return OMPI_ERR_BAD_PARAM;
}
*ptr = '\0';
ptr++;
port = ptr;
memset(inaddr, 0, sizeof(inaddr));
inaddr->sin_family = AF_INET;
inaddr->sin_addr.s_addr = inet_addr(addr);
if(inaddr->sin_addr.s_addr == INADDR_ANY) {
free(tmp);
return OMPI_ERR_BAD_PARAM;
}
inaddr->sin_port = htons(atoi(port));
free(tmp);
return OMPI_SUCCESS;
}
/*
* Setup address in the cache. Note that this could be called multiple
* times if a given destination exports multiple addresses.
*/
int mca_oob_tcp_set_addr(const orte_process_name_t* name, const char* uri)
{
struct sockaddr_in inaddr;
mca_oob_tcp_addr_t* addr;
mca_oob_tcp_peer_t* peer;
int rc;
if((rc = mca_oob_tcp_parse_uri(uri,&inaddr)) != OMPI_SUCCESS)
return rc;
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
addr = (mca_oob_tcp_addr_t*)orte_hash_table_get_proc(&mca_oob_tcp_component.tcp_peer_names, name);
if(NULL == addr) {
addr = OBJ_NEW(mca_oob_tcp_addr_t);
addr->addr_name = *name;
orte_hash_table_set_proc(&mca_oob_tcp_component.tcp_peer_names, &addr->addr_name, addr);
}
rc = mca_oob_tcp_addr_insert(addr, &inaddr);
peer = (mca_oob_tcp_peer_t *)orte_hash_table_get_proc(
&mca_oob_tcp_component.tcp_peers, &addr->addr_name);
if(NULL != peer) {
mca_oob_tcp_peer_resolved(peer, addr);
}
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
return rc;
}
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