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openmpi/orte/mca/rmcast/tcp/rmcast_tcp.c

1110 строки
37 KiB
C

/*
* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/constants.h"
#include "opal/types.h"
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include "opal/class/opal_list.h"
#include "opal/opal_socket_errno.h"
#include "opal/util/output.h"
#include "opal/util/argv.h"
#include "opal/util/if.h"
#include "opal/util/net.h"
#include "opal/dss/dss.h"
#include "orte/runtime/orte_globals.h"
#include "orte/runtime/orte_wait.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/util/name_fns.h"
#include "orte/util/show_help.h"
#include "orte/mca/grpcomm/grpcomm.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/rml/base/rml_contact.h"
#include "orte/mca/rmcast/base/private.h"
#include "orte/mca/rmcast/base/base.h"
#include "rmcast_tcp.h"
/* LOCAL DATA */
static opal_mutex_t lock;
static opal_list_t recvs;
static opal_list_t channels;
static bool init_completed = false;
static orte_rmcast_channel_t next_channel;
/* LOCAL FUNCTIONS */
static void recv_handler(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata);
/* LOCAL STRUCTURE VALUES */
static rmcast_base_channel_t *my_group_channel=NULL;
/* API FUNCTIONS */
static int init(void);
static void finalize(void);
static int tcp_send_buffer(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
opal_buffer_t *buf);
static int tcp_send_buffer_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
opal_buffer_t *buf,
orte_rmcast_callback_buffer_fn_t cbfunc,
void *cbdata);
static int tcp_send(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
struct iovec *msg, int count);
static int tcp_send_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
struct iovec *msg, int count,
orte_rmcast_callback_fn_t cbfunc,
void *cbdata);
static int tcp_recv_buffer(orte_process_name_t *sender,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
opal_buffer_t *buf);
static int tcp_recv_buffer_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
orte_rmcast_flag_t flags,
orte_rmcast_callback_buffer_fn_t cbfunc,
void *cbdata);
static int tcp_recv(orte_process_name_t *sender,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
struct iovec **msg, int *count);
static int tcp_recv_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
orte_rmcast_flag_t flags,
orte_rmcast_callback_fn_t cbfunc,
void *cbdata);
static void cancel_recv(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag);
static int open_channel(orte_rmcast_channel_t *channel, char *name,
char *network, int port, char *interface, uint8_t direction);
static int close_channel(orte_rmcast_channel_t channel);
static orte_rmcast_channel_t query(void);
/* Define the module */
orte_rmcast_module_t orte_rmcast_tcp_module = {
init,
finalize,
tcp_send,
tcp_send_nb,
tcp_send_buffer,
tcp_send_buffer_nb,
tcp_recv,
tcp_recv_nb,
tcp_recv_buffer,
tcp_recv_buffer_nb,
cancel_recv,
open_channel,
close_channel,
query
};
/* during init, we setup two channels for both xmit and recv:
* (a) a public address announcement channel. There are two variants
* of this:
* (1) system processes - e.g., daemons, tools. This channel
* is reserved solely for their use in performing admin
* functions
* (2) application processes. This channel is used to announce
* their existence and contact info for auto-wireup
* (b) our own group's channel, which is where our own output
* will be sent. At this time, we assume that we always
* want to hear our peers, so this channels is also
* bidirectional
*
* In addition, the HNP opens a third channel which is used solely
* for cmd-control purposes. This is where a tool, for example, might
* send a cmd to the HNP to take some action - there is no point in
* having that cmd echo around to every daemon and/or other tool
* in the system.
*/
static int init(void)
{
int rc;
orte_rmcast_channel_t channel;
if (init_completed) {
return ORTE_SUCCESS;
}
init_completed = true;
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: init called",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* setup the globals */
OBJ_CONSTRUCT(&lock, opal_mutex_t);
OBJ_CONSTRUCT(&recvs, opal_list_t);
OBJ_CONSTRUCT(&channels, opal_list_t);
next_channel = ORTE_RMCAST_DYNAMIC_CHANNELS;
/* setup the respective public address channel */
if (ORTE_PROC_IS_HNP || ORTE_PROC_IS_DAEMON || ORTE_PROC_IS_TOOL) {
channel = ORTE_RMCAST_SYS_CHANNEL;
if (ORTE_SUCCESS != (rc = open_channel(&channel, "system",
NULL, -1, NULL, ORTE_RMCAST_BIDIR))) {
ORTE_ERROR_LOG(rc);
return rc;
}
} else if (ORTE_PROC_IS_APP) {
channel = ORTE_RMCAST_APP_PUBLIC_CHANNEL;
if (ORTE_SUCCESS != (rc = open_channel(&channel, "app-announce",
NULL, -1, NULL, ORTE_RMCAST_BIDIR))) {
ORTE_ERROR_LOG(rc);
return rc;
}
} else {
opal_output(0, "rmcast:tcp:init - unknown process type");
return ORTE_ERR_SILENT;
}
/* finally, if we are an app, setup our grp channel, if one was given */
if (ORTE_PROC_IS_APP && NULL != orte_rmcast_base.my_group_name) {
channel = orte_rmcast_base.my_group_number;
if (ORTE_SUCCESS != (rc = open_channel(&channel, orte_rmcast_base.my_group_name,
NULL, -1, NULL, ORTE_RMCAST_BIDIR))) {
ORTE_ERROR_LOG(rc);
return rc;
}
my_group_channel = (rmcast_base_channel_t*)opal_list_get_last(&channels);
}
if (ORTE_JOBID_WILDCARD == orte_process_info.my_hnp.jobid) {
/* set the HNP info in our contact table */
if (ORTE_SUCCESS != (rc = orte_rml.set_contact_info(orte_process_info.my_hnp_uri))) {
orte_show_help("help-orcm-ps.txt", "orcm-ps:hnp-uri-bad", true, orte_process_info.my_hnp_uri);
return rc;
}
/* extract the name */
if (ORTE_SUCCESS != (rc = orte_rml_base_parse_uris(orte_process_info.my_hnp_uri,
&orte_process_info.my_hnp, NULL))) {
orte_show_help("help-orcm-ps.txt", "orcm-ps:hnp-uri-bad", true, orte_process_info.my_hnp_uri);
return rc;
}
}
/* now activate the non-blocking recv so we catch messages */
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_MULTICAST,
ORTE_RML_NON_PERSISTENT,
recv_handler,
NULL))) {
ORTE_ERROR_LOG(rc);
return rc;
}
return ORTE_SUCCESS;
}
static void finalize(void)
{
opal_list_item_t *item;
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: finalize called",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* cancel the recv */
orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_MULTICAST);
/* deconstruct the globals */
OPAL_THREAD_LOCK(&lock);
while (NULL != (item = opal_list_remove_first(&recvs))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&recvs);
while (NULL != (item = opal_list_remove_first(&channels))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&channels);
OPAL_THREAD_UNLOCK(&lock);
OBJ_DESTRUCT(&lock);
return;
}
/* internal blocking send support */
static bool send_complete, send_buf_complete;
static void internal_snd_cb(int status,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
orte_process_name_t *sender,
struct iovec *msg, int count, void *cbdata)
{
send_complete = true;
}
static void internal_snd_buf_cb(int status,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
orte_process_name_t *sender,
opal_buffer_t *buf, void *cbdata)
{
send_buf_complete = true;
}
static int queue_xmit(rmcast_base_send_t *snd,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag)
{
opal_list_item_t *item;
rmcast_base_channel_t *chptr, *ch;
int32_t sz;
int rc;
int8_t flag;
opal_buffer_t buf;
int32_t tmp32;
/* if we were asked to send this on our group output
* channel, substitute it
*/
if (ORTE_RMCAST_GROUP_CHANNEL == channel) {
if (NULL == my_group_channel) {
return ORTE_ERR_NOT_FOUND;
}
ch = my_group_channel;
goto process;
}
/* find the channel */
ch = NULL;
for (item = opal_list_get_first(&channels);
item != opal_list_get_end(&channels);
item = opal_list_get_next(item)) {
chptr = (rmcast_base_channel_t*)item;
if (channel == chptr->channel) {
ch = chptr;
break;
}
}
if (NULL == ch) {
/* didn't find it */
return ORTE_ERR_NOT_FOUND;
}
process:
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: send of %d %s"
" called on multicast channel %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(NULL == snd->iovec_array) ? (int)snd->buf->bytes_used : (int)snd->iovec_count,
(NULL == snd->iovec_array) ? "bytes" : "iovecs",
(int)ch->channel));
OPAL_THREAD_LOCK(&ch->send_lock);
/* setup a buffer */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
/* pack our name */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, ORTE_PROC_MY_NAME, 1, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* pack the channel */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &ch->channel, 1, ORTE_RMCAST_CHANNEL_T))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* pack the tag */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &tag, 1, ORTE_RMCAST_TAG_T))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* pack the sequence number */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &ch->seq_num, 1, ORTE_RMCAST_SEQ_T))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* are we sending a buffer? */
if (NULL == snd->buf) {
/* no, flag the buffer as containing iovecs */
flag = 0;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &flag, 1, OPAL_INT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* pack the number of iovecs */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &snd->iovec_count, 1, OPAL_INT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* pack each iovec into a buffer in prep for sending
* so we can recreate the array at the other end
*/
for (sz=0; sz < snd->iovec_count; sz++) {
/* pack the size */
tmp32 = snd->iovec_array[sz].iov_len;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &tmp32, 1, OPAL_INT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (0 < tmp32) {
/* pack the bytes */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, snd->iovec_array[sz].iov_base, tmp32, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
}
} else {
/* flag it as being a buffer */
flag = 1;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &flag, 1, OPAL_INT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* copy the payload */
if (ORTE_SUCCESS != (rc = opal_dss.copy_payload(&buf, snd->buf))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp multicasting %d bytes to channel %d tag %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), (int)buf.bytes_used,
(int)ch->channel, (int)tag));
if (ORTE_SUCCESS != (rc = orte_grpcomm.xcast(ORTE_JOBID_WILDCARD,
&buf, ORTE_RML_TAG_MULTICAST))) {
/* didn't get the message out */
opal_output(0, "%s failed to send message to multicast channel %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), (int)ch->channel);
goto cleanup;
}
if (1 == flag) {
/* call the cbfunc if required */
if (NULL != snd->cbfunc_buffer) {
snd->cbfunc_buffer(rc, channel, tag,
ORTE_PROC_MY_NAME,
snd->buf, snd->cbdata);
}
} else {
/* call the cbfunc if required */
if (NULL != snd->cbfunc_iovec) {
snd->cbfunc_iovec(rc, channel, tag,
ORTE_PROC_MY_NAME,
snd->iovec_array, snd->iovec_count, snd->cbdata);
}
}
/* roll to next message sequence number */
ORTE_MULTICAST_NEXT_SEQUENCE_NUM(ch->seq_num);
cleanup:
OBJ_DESTRUCT(&buf);
OPAL_THREAD_UNLOCK(&ch->send_lock);
return ORTE_SUCCESS;
}
static int tcp_send(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
struct iovec *msg, int count)
{
rmcast_base_send_t snd;
int ret;
/* queue it to be sent - preserves order! */
OBJ_CONSTRUCT(&snd, rmcast_base_send_t);
snd.iovec_array = msg;
snd.iovec_count = count;
snd.tag = tag;
snd.cbfunc_iovec = internal_snd_cb;
send_complete = false;
if (ORTE_SUCCESS != (ret = queue_xmit(&snd, channel, tag))) {
ORTE_ERROR_LOG(ret);
OBJ_DESTRUCT(&snd);
return ret;
}
/* now wait for the send to complete */
ORTE_PROGRESSED_WAIT(send_complete, 0, 1);
OBJ_DESTRUCT(&snd);
return ORTE_SUCCESS;
}
static int tcp_send_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
struct iovec *msg, int count,
orte_rmcast_callback_fn_t cbfunc,
void *cbdata)
{
int ret;
rmcast_base_send_t snd;
/* queue it to be sent - preserves order! */
OBJ_CONSTRUCT(&snd, rmcast_base_send_t);
snd.iovec_array = msg;
snd.iovec_count = count;
snd.tag = tag;
snd.cbfunc_iovec = cbfunc;
snd.cbdata = cbdata;
if (ORTE_SUCCESS != (ret = queue_xmit(&snd, channel, tag))) {
ORTE_ERROR_LOG(ret);
OBJ_DESTRUCT(&snd);
return ret;
}
OBJ_DESTRUCT(&snd);
return ORTE_SUCCESS;
}
static int tcp_send_buffer(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
opal_buffer_t *buf)
{
int ret;
rmcast_base_send_t snd;
/* queue it to be sent - preserves order! */
OBJ_CONSTRUCT(&snd, rmcast_base_send_t);
snd.buf = buf;
snd.tag = tag;
snd.cbfunc_buffer = internal_snd_buf_cb;
send_buf_complete = false;
if (ORTE_SUCCESS != (ret = queue_xmit(&snd, channel, tag))) {
ORTE_ERROR_LOG(ret);
OBJ_DESTRUCT(&snd);
return ret;
}
/* now wait for the send to complete */
ORTE_PROGRESSED_WAIT(send_buf_complete, 0, 1);
OBJ_DESTRUCT(&snd);
return ORTE_SUCCESS;
}
static int tcp_send_buffer_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
opal_buffer_t *buf,
orte_rmcast_callback_buffer_fn_t cbfunc,
void *cbdata)
{
int ret;
rmcast_base_send_t snd;
/* queue it to be sent - preserves order! */
OBJ_CONSTRUCT(&snd, rmcast_base_send_t);
snd.buf = buf;
snd.tag = tag;
snd.cbfunc_buffer = cbfunc;
snd.cbdata = cbdata;
if (ORTE_SUCCESS != (ret = queue_xmit(&snd, channel, tag))) {
ORTE_ERROR_LOG(ret);
OBJ_DESTRUCT(&snd);
return ret;
}
OBJ_DESTRUCT(&snd);
return ORTE_SUCCESS;
}
static int queue_recv(rmcast_base_recv_t *recvptr,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
orte_rmcast_callback_fn_t cbfunc_iovec,
orte_rmcast_callback_buffer_fn_t cbfunc_buffer,
bool blocking)
{
opal_list_item_t *item;
rmcast_base_channel_t *ch, *chptr;
rmcast_base_recv_t *rptr;
/* find the channel */
ch = NULL;
for (item = opal_list_get_first(&channels);
item != opal_list_get_end(&channels);
item = opal_list_get_next(item)) {
chptr = (rmcast_base_channel_t*)item;
if (channel == chptr->channel) {
ch = chptr;
break;
}
}
if (NULL == ch) {
/* didn't find it */
return ORTE_ERR_NOT_FOUND;
}
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: queue_recv called on multicast channel %03d.%03d.%03d.%03d tag %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), OPAL_IF_FORMAT_ADDR(ch->network), tag));
if (!blocking) {
/* do we already have a recv for this channel/tag/cbfunc? */
OPAL_THREAD_LOCK(&lock);
for (item = opal_list_get_first(&recvs);
item != opal_list_get_end(&recvs);
item = opal_list_get_next(item)) {
rptr = (rmcast_base_recv_t*)item;
if (channel != rptr->channel) {
/* different channel */
continue;
}
if (tag != rptr->tag) {
/* different tag */
continue;
}
if ((NULL != cbfunc_iovec && NULL != rptr->cbfunc_iovec) ||
(NULL != cbfunc_buffer && NULL != rptr->cbfunc_buffer)) {
/* matching type - recv already in place */
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: matching recv already active on multicast channel %03d.%03d.%03d.%03d tag %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), OPAL_IF_FORMAT_ADDR(ch->network), tag));
OPAL_THREAD_UNLOCK(&lock);
return ORTE_EXISTS;
}
}
OPAL_THREAD_UNLOCK(&lock);
}
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: adding non-blocking recv on multicast channel %d tag %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), ch->channel, tag));
OPAL_THREAD_LOCK(&lock);
opal_list_append(&recvs, &recvptr->item);
OPAL_THREAD_UNLOCK(&lock);
return ORTE_SUCCESS;
}
static int tcp_recv(orte_process_name_t *name,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
struct iovec **msg, int *count)
{
rmcast_base_recv_t *recvptr;
int ret;
recvptr = OBJ_NEW(rmcast_base_recv_t);
recvptr->channel = channel;
recvptr->tag = tag;
if (ORTE_SUCCESS != (ret = queue_recv(recvptr, channel, tag, NULL, NULL, true))) {
ORTE_ERROR_LOG(ret);
OBJ_RELEASE(recvptr);
return ret;
}
ORTE_PROGRESSED_WAIT(recvptr->recvd, 0, 1);
/* xfer the data */
if (NULL != name) {
/* caller requested id of sender */
name->jobid = recvptr->name.jobid;
name->vpid = recvptr->name.vpid;
}
*msg = recvptr->iovec_array;
*count = recvptr->iovec_count;
/* remove the recv */
OPAL_THREAD_LOCK(&lock);
opal_list_remove_item(&recvs, &recvptr->item);
OPAL_THREAD_UNLOCK(&lock);
OBJ_RELEASE(recvptr);
return ORTE_SUCCESS;
}
static int tcp_recv_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
orte_rmcast_flag_t flags,
orte_rmcast_callback_fn_t cbfunc, void *cbdata)
{
rmcast_base_recv_t *recvptr;
int ret;
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: recv_nb called on channel %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), channel));
recvptr = OBJ_NEW(rmcast_base_recv_t);
recvptr->channel = channel;
recvptr->tag = tag;
recvptr->flags = flags;
recvptr->cbfunc_iovec = cbfunc;
recvptr->cbdata = cbdata;
if (ORTE_SUCCESS != (ret = queue_recv(recvptr, channel, tag, cbfunc, NULL, false))) {
if (ORTE_EXISTS == ret) {
/* this recv already exists - just release the copy */
OBJ_RELEASE(recvptr);
return ORTE_SUCCESS;
}
ORTE_ERROR_LOG(ret);
OBJ_RELEASE(recvptr);
return ret;
}
return ORTE_SUCCESS;
}
static int tcp_recv_buffer(orte_process_name_t *name,
orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
opal_buffer_t *buf)
{
rmcast_base_recv_t *recvptr;
int ret;
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: recv_buffer called on multicast channel %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), channel));
recvptr = OBJ_NEW(rmcast_base_recv_t);
recvptr->channel = channel;
recvptr->tag = tag;
if (ORTE_SUCCESS != (ret = queue_recv(recvptr, channel, tag, NULL, NULL, true))) {
ORTE_ERROR_LOG(ret);
goto cleanup;
}
ORTE_PROGRESSED_WAIT(recvptr->recvd, 0, 1);
/* xfer the data */
if (NULL != name) {
/* caller requested id of sender */
name->jobid = recvptr->name.jobid;
name->vpid = recvptr->name.vpid;
}
if (ORTE_SUCCESS != (ret = opal_dss.copy_payload(buf, recvptr->buf))) {
ORTE_ERROR_LOG(ret);
}
/* release the data */
OBJ_RELEASE(recvptr->buf);
cleanup:
OPAL_THREAD_LOCK(&lock);
opal_list_remove_item(&recvs, &recvptr->item);
OPAL_THREAD_UNLOCK(&lock);
OBJ_RELEASE(recvptr);
return ret;
}
static int tcp_recv_buffer_nb(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag,
orte_rmcast_flag_t flags,
orte_rmcast_callback_buffer_fn_t cbfunc, void *cbdata)
{
rmcast_base_recv_t *recvptr;
int ret;
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp: recv_buffer_nb called on multicast channel %d tag %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), channel, tag));
recvptr = OBJ_NEW(rmcast_base_recv_t);
recvptr->channel = channel;
recvptr->tag = tag;
recvptr->flags = flags;
recvptr->cbfunc_buffer = cbfunc;
recvptr->cbdata = cbdata;
if (ORTE_SUCCESS != (ret = queue_recv(recvptr, channel, tag, NULL, cbfunc, false))) {
if (ORTE_EXISTS == ret) {
/* this recv already exists - just release the copy */
OBJ_RELEASE(recvptr);
return ORTE_SUCCESS;
}
ORTE_ERROR_LOG(ret);
OBJ_RELEASE(recvptr);
return ret;
}
return ORTE_SUCCESS;
}
static void cancel_recv(orte_rmcast_channel_t channel,
orte_rmcast_tag_t tag)
{
opal_list_item_t *item, *next;
rmcast_base_recv_t *ptr;
/* find all recv's for this channel and tag */
item = opal_list_get_first(&recvs);
while (item != opal_list_get_end(&recvs)) {
next = opal_list_get_next(item);
ptr = (rmcast_base_recv_t*)item;
if (channel == ptr->channel &&
tag == ptr->tag) {
OPAL_THREAD_LOCK(&lock);
opal_list_remove_item(&recvs, &ptr->item);
OBJ_RELEASE(ptr);
OPAL_THREAD_UNLOCK(&lock);
}
item = next;
}
}
/* for the tcp module, we will be using the RML to "fake" a
* multicast in combination with the grpcomm "xcast" interface.
* We cannot control the network and interface in this
* combination as it gets auto-picked well before us, so we
* ignore that info here
*/
static int open_channel(orte_rmcast_channel_t *channel, char *name,
char *network, int port, char *interface, uint8_t direction)
{
opal_list_item_t *item;
rmcast_base_channel_t *nchan, *chan;
/* see if this name has already been assigned a channel on the specified network */
chan = NULL;
for (item = opal_list_get_first(&channels);
item != opal_list_get_end(&channels);
item = opal_list_get_next(item)) {
nchan = (rmcast_base_channel_t*)item;
if (0 == strcasecmp(nchan->name, name)) {
/* check the channel, if one was given */
if (ORTE_RMCAST_INVALID_CHANNEL != *channel &&
nchan->channel != *channel) {
continue;
}
/* all setup - nothing to do */
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp using existing channel",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
return ORTE_SUCCESS;
}
}
/* we didn't find an existing match, so create a new channel */
chan = OBJ_NEW(rmcast_base_channel_t);
chan->name = strdup(name);
/* if we were given a channel, then just use it */
if (ORTE_RMCAST_INVALID_CHANNEL != *channel) {
chan->channel = *channel;
} else {
chan->channel = next_channel++;
*channel = chan->channel;
}
/* add to list of known channels */
OPAL_THREAD_LOCK(&lock);
opal_list_append(&channels, &chan->item);
OPAL_THREAD_UNLOCK(&lock);
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp opening new channel for%s%s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(ORTE_RMCAST_RECV & direction) ? " RECV" : " ",
(ORTE_RMCAST_XMIT & direction) ? " XMIT" : " "));
return ORTE_SUCCESS;
}
static int close_channel(orte_rmcast_channel_t channel)
{
opal_list_item_t *item;
rmcast_base_channel_t *chan;
OPAL_THREAD_LOCK(&lock);
for (item = opal_list_get_first(&channels);
item != opal_list_get_end(&channels);
item = opal_list_get_next(item)) {
chan = (rmcast_base_channel_t*)item;
if (channel == chan->channel) {
opal_list_remove_item(&channels, item);
OBJ_RELEASE(chan);
OPAL_THREAD_UNLOCK(&lock);
return ORTE_SUCCESS;
}
}
OPAL_THREAD_UNLOCK(&lock);
return ORTE_ERR_NOT_FOUND;
}
static orte_rmcast_channel_t query(void)
{
return orte_rmcast_base.my_group_number;
}
/**** LOCAL FUNCTIONS ****/
static void process_recv(int fd, short event, void *cbdata)
{
orte_message_event_t *mev = (orte_message_event_t*)cbdata;
opal_buffer_t *buf = mev->buffer;
orte_rmcast_channel_t channel;
opal_list_item_t *item;
rmcast_base_recv_t *ptr;
orte_process_name_t name;
orte_rmcast_tag_t tag;
int8_t flag;
struct iovec *iovec_array=NULL;
int32_t iovec_count=0, i, sz, n;
opal_buffer_t *recvd_buf=NULL;
int rc;
orte_rmcast_seq_t recvd_seq_num;
/* extract the name of the original sender */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, &name, &n, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* if this message is from myself, ignore it */
if (name.jobid == ORTE_PROC_MY_NAME->jobid && name.vpid == ORTE_PROC_MY_NAME->vpid) {
OPAL_OUTPUT_VERBOSE((10, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp:recv sent from myself: %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&name)));
goto cleanup;
}
/* extract the "channel" */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, &channel, &n, ORTE_RMCAST_CHANNEL_T))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* extract the tag */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, &tag, &n, ORTE_RMCAST_TAG_T))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* extract the sequence number */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, &recvd_seq_num, &n, ORTE_RMCAST_SEQ_T))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp:recv sender: %s tag: %d seq_num: %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&name), (int)tag, recvd_seq_num));
/* unpack the iovec vs buf flag */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, &flag, &n, OPAL_INT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* find the recv for this channel, tag, and type */
for (item = opal_list_get_first(&recvs);
item != opal_list_get_end(&recvs);
item = opal_list_get_next(item)) {
ptr = (rmcast_base_recv_t*)item;
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp:recv checking channel %d tag %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(int)ptr->channel, (int)ptr->tag));
if (channel != ptr->channel) {
continue;
}
if (tag != ptr->tag && ORTE_RMCAST_TAG_WILDCARD != ptr->tag) {
continue;
}
if (0 == flag && !ptr->iovecs_requested) {
/* it's an iovec and this recv is for buffers */
continue;
}
if (1 == flag && ptr->iovecs_requested) {
/* it's a buffer and this recv is for iovecs */
continue;
}
/* we have a recv - unpack the data */
if (0 == flag) {
/* get the number of iovecs in the buffer */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, &iovec_count, &n, OPAL_INT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* malloc the required space */
iovec_array = (struct iovec *)malloc(iovec_count * sizeof(struct iovec));
/* unpack the iovecs */
for (i=0; i < iovec_count; i++) {
/* unpack the number of bytes in this iovec */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, &sz, &n, OPAL_INT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
iovec_array[i].iov_base = NULL;
iovec_array[i].iov_len = sz;
if (0 < sz) {
/* allocate the space */
iovec_array[i].iov_base = (uint8_t*)malloc(sz);
/* unpack the data */
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buf, iovec_array[i].iov_base, &sz, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
}
} else {
/* buffer was included */
recvd_buf = OBJ_NEW(opal_buffer_t);
if (ORTE_SUCCESS != (rc = opal_dss.copy_payload(recvd_buf, buf))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp:recv delivering message to channel %d tag %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), ptr->channel, (int)tag));
if (0 == flag) {
/* dealing with iovecs */
if (NULL != ptr->cbfunc_iovec) {
ptr->cbfunc_iovec(ORTE_SUCCESS, ptr->channel, tag,
&name, iovec_array, iovec_count, ptr->cbdata);
/* if it isn't persistent, remove it */
if (!(ORTE_RMCAST_PERSISTENT & ptr->flags)) {
OPAL_THREAD_LOCK(&lock);
opal_list_remove_item(&recvs, &ptr->item);
OPAL_THREAD_UNLOCK(&lock);
OBJ_RELEASE(ptr);
}
} else {
/* copy over the iovec array since it will be released by
* the blocking recv
*/
ptr->iovec_array = (struct iovec *)malloc(iovec_count * sizeof(struct iovec));
ptr->iovec_count = iovec_count;
for (i=0; i < iovec_count; i++) {
ptr->iovec_array[i].iov_base = (uint8_t*)malloc(iovec_array[i].iov_len);
ptr->iovec_array[i].iov_len = iovec_array[i].iov_len;
memcpy(ptr->iovec_array[i].iov_base, iovec_array[i].iov_base, iovec_array[i].iov_len);
}
/* flag it as recvd to release blocking recv */
ptr->recvd = true;
}
} else {
if (NULL != ptr->cbfunc_buffer) {
ptr->cbfunc_buffer(ORTE_SUCCESS, ptr->channel, tag,
&name, recvd_buf, ptr->cbdata);
/* if it isn't persistent, remove it */
if (!(ORTE_RMCAST_PERSISTENT & ptr->flags)) {
OPAL_THREAD_LOCK(&lock);
opal_list_remove_item(&recvs, &ptr->item);
OPAL_THREAD_UNLOCK(&lock);
OBJ_RELEASE(ptr);
}
} else {
/* copy the buffer across since it will be released
* by the blocking recv
*/
ptr->buf = OBJ_NEW(opal_buffer_t);
if (ORTE_SUCCESS != (rc = opal_dss.copy_payload(ptr->buf, recvd_buf))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* flag it as recvd to release blocking recv */
ptr->recvd = true;
}
}
/* we are done - only one recv can match */
break;
}
cleanup:
OBJ_RELEASE(mev);
if (NULL != iovec_array) {
for (i=0; i < iovec_count; i++) {
free(iovec_array[i].iov_base);
}
free(iovec_array);
}
if (NULL != recvd_buf) {
OBJ_RELEASE(recvd_buf);
}
return;
}
static void recv_handler(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
int rc;
OPAL_OUTPUT_VERBOSE((2, orte_rmcast_base.rmcast_output,
"%s rmcast:tcp recvd multicast msg",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* clear the way for the next message */
ORTE_MESSAGE_EVENT(sender, buffer, tag, process_recv);
/* reissue the recv */
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_MULTICAST,
ORTE_RML_NON_PERSISTENT,
recv_handler,
NULL))) {
ORTE_ERROR_LOG(rc);
}
return;
}