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openmpi/orte/mca/oob/tcp/oob_tcp_msg.c
Brian Barrett 8a55c84d0b Fix a number of OOB issues: 
* Remove the connect() timeout code, as it had some nasty race conditions
    when connections were established as the trigger was firing.  A better
    solution has been found for the cluster where this was needed, so just
    removing it was easiest.
  * When a fatal error (too many connection failures) occurs, set an error
    on messages in the queue even if there isn't an active message.  The
    first message to any peer will be queued without being active (and
    so will all subsequent messages until the connection is established),
    and the orteds will hang until that first message completes.  So if
    an orted can never contact it's peer, it will never exit and just sit
    waiting for that message to complete.
  * Cover an interesting RST condition in the connect code.  A connection
    can complete the three-way handshake, the connector can even send
    some data, but the server side will drop the connection because it
    can't move it from the half-connected to fully-connected state because
    of space shortage in the listen backlog queue.  This causes a RST to
    be received first time that recv() is called, which will be when waiting
    for the remote side of the OOB ack.  In this case, transition the
    connection back into a CLOSED state and try to connect again.
  * Add levels of debugging, rather than all or nothing, each building on
    the previous level.  0 (default) is hard errors.  1 is connection 
    error debugging info.  2 is all connection info.  3 is more state
    info.  4 includes all message info.
  * Add some hopefully useful comments

This commit was SVN r14261.
2007-04-07 22:33:30 +00:00

605 строки
22 KiB
C
Исходник Ответственный История

/*
* Copyright (c) 2004-2007 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 (c) 2006-2007 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* 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
*/
#include "orte_config.h"
#include "opal/opal_socket_errno.h"
#include "orte/class/orte_proc_table.h"
#include "orte/orte_constants.h"
#include "orte/mca/ns/ns.h"
#include "orte/mca/oob/tcp/oob_tcp.h"
#include "orte/mca/oob/tcp/oob_tcp_msg.h"
static void mca_oob_tcp_msg_construct(mca_oob_tcp_msg_t*);
static void mca_oob_tcp_msg_destruct(mca_oob_tcp_msg_t*);
static void mca_oob_tcp_msg_ident(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer);
static bool mca_oob_tcp_msg_recv(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer);
static void mca_oob_tcp_msg_data(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer);
static void mca_oob_tcp_msg_ping(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer);
OBJ_CLASS_INSTANCE(
mca_oob_tcp_msg_t,
opal_list_item_t,
mca_oob_tcp_msg_construct,
mca_oob_tcp_msg_destruct);
static void mca_oob_tcp_msg_construct(mca_oob_tcp_msg_t* msg)
{
OBJ_CONSTRUCT(&msg->msg_lock, opal_mutex_t);
OBJ_CONSTRUCT(&msg->msg_condition, opal_condition_t);
}
static void mca_oob_tcp_msg_destruct(mca_oob_tcp_msg_t* msg)
{
OBJ_DESTRUCT(&msg->msg_lock);
OBJ_DESTRUCT(&msg->msg_condition);
}
/*
* Wait for a msg to complete.
* @param msg (IN) Message to wait on.
* @param rc (OUT) Return code (number of bytes read on success or error code on failure).
* @retval ORTE_SUCCESS or error code on failure.
*/
int mca_oob_tcp_msg_wait(mca_oob_tcp_msg_t* msg, int* rc)
{
#if OMPI_ENABLE_PROGRESS_THREADS
OPAL_THREAD_LOCK(&msg->msg_lock);
while(msg->msg_complete == false) {
if(opal_event_progress_thread()) {
int rc;
OPAL_THREAD_UNLOCK(&msg->msg_lock);
rc = opal_event_loop(OPAL_EVLOOP_ONCE);
assert(rc >= 0);
OPAL_THREAD_LOCK(&msg->msg_lock);
} else {
opal_condition_wait(&msg->msg_condition, &msg->msg_lock);
}
}
OPAL_THREAD_UNLOCK(&msg->msg_lock);
#else
/* wait for message to complete */
while(msg->msg_complete == false) {
/* msg_wait() is used in the "barrier" at the completion of
MPI_FINALIZE, during which time BTLs may still need to
progress pending outgoing communication, so we need to
call opal_progress() here to make sure that communication
gets pushed out so others can enter finalize (and send us
the message we're here waiting for). However, if we're
in a callback from the event library that was triggered
from a call to opal_progress(), opal_progress() will
think another thread is already progressing the event
engine (in the case of mpi threads enabled) and not
progress the engine, meaning we'll never receive our
message. So we also need to progress the event library
expicitly. We use EVLOOP_NONBLOCK so that we can
progress both the registered callbacks and the event
library, as EVLOOP_ONCE may block for a short period of
time. */
opal_progress();
opal_event_loop(OPAL_EVLOOP_NONBLOCK);
OPAL_CR_TEST_CHECKPOINT_READY();
}
#endif
/* return status */
if(NULL != rc) {
*rc = msg->msg_rc;
}
return ORTE_SUCCESS;
}
/*
* Wait up to a timeout for the message to complete.
* @param msg (IN) Message to wait on.
* @param rc (OUT) Return code (number of bytes read on success or error code on failure).
* @retval ORTE_SUCCESS or error code on failure.
*/
int mca_oob_tcp_msg_timedwait(mca_oob_tcp_msg_t* msg, int* rc, struct timespec* abstime)
{
struct timeval tv;
uint32_t secs = abstime->tv_sec;
uint32_t usecs = abstime->tv_nsec * 1000;
gettimeofday(&tv,NULL);
#if OMPI_ENABLE_PROGRESS_THREADS
OPAL_THREAD_LOCK(&msg->msg_lock);
while(msg->msg_complete == false &&
((uint32_t)tv.tv_sec <= secs ||
((uint32_t)tv.tv_sec == secs && (uint32_t)tv.tv_usec < usecs))) {
if(opal_event_progress_thread()) {
int rc;
OPAL_THREAD_UNLOCK(&msg->msg_lock);
rc = opal_event_loop(OPAL_EVLOOP_ONCE);
assert(rc >= 0);
OPAL_THREAD_LOCK(&msg->msg_lock);
} else {
opal_condition_timedwait(&msg->msg_condition, &msg->msg_lock, abstime);
}
gettimeofday(&tv,NULL);
}
OPAL_THREAD_UNLOCK(&msg->msg_lock);
#else
/* wait for message to complete */
while(msg->msg_complete == false &&
((uint32_t)tv.tv_sec <= secs ||
((uint32_t)tv.tv_sec == secs && (uint32_t)tv.tv_usec < usecs))) {
/* see comment in tcp_msg_wait, above */
opal_progress();
opal_event_loop(OPAL_EVLOOP_NONBLOCK);
gettimeofday(&tv,NULL);
}
#endif
/* return status */
if(NULL != rc) {
*rc = msg->msg_rc;
}
if(msg->msg_rc < 0)
return msg->msg_rc;
return (msg->msg_complete ? ORTE_SUCCESS : ORTE_ERR_TIMEOUT);
}
/*
* Signal that a message has completed.
* @param msg (IN) Message to wait on.
* @param peer (IN) the peer of the message
* @retval ORTE_SUCCESS or error code on failure.
*/
int mca_oob_tcp_msg_complete(mca_oob_tcp_msg_t* msg, orte_process_name_t * peer)
{
OPAL_THREAD_LOCK(&msg->msg_lock);
msg->msg_complete = true;
if(NULL != msg->msg_cbfunc) {
opal_list_item_t* item;
OPAL_THREAD_UNLOCK(&msg->msg_lock);
/* post to a global list of completed messages */
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
opal_list_append(&mca_oob_tcp_component.tcp_msg_completed, (opal_list_item_t*)msg);
if(opal_list_get_size(&mca_oob_tcp_component.tcp_msg_completed) > 1) {
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
return ORTE_SUCCESS;
}
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
/* invoke message callback */
msg->msg_cbfunc(msg->msg_rc, peer, msg->msg_uiov, msg->msg_ucnt, msg->msg_hdr.msg_tag, msg->msg_cbdata);
/* dispatch any completed events */
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
opal_list_remove_item(&mca_oob_tcp_component.tcp_msg_completed, (opal_list_item_t*)msg);
MCA_OOB_TCP_MSG_RETURN(msg);
while(NULL !=
(item = opal_list_remove_first(&mca_oob_tcp_component.tcp_msg_completed))) {
msg = (mca_oob_tcp_msg_t*)item;
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
msg->msg_cbfunc(
msg->msg_rc,
&msg->msg_peer,
msg->msg_uiov,
msg->msg_ucnt,
msg->msg_hdr.msg_tag,
msg->msg_cbdata);
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
MCA_OOB_TCP_MSG_RETURN(msg);
}
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
} else {
opal_condition_broadcast(&msg->msg_condition);
OPAL_THREAD_UNLOCK(&msg->msg_lock);
}
return ORTE_SUCCESS;
}
/*
* The function that actually sends the data!
* @param msg a pointer to the message to send
* @param peer the peer we are sending to
* @retval true if the entire message has been sent
* @retval false if the entire message has not been sent
*/
bool mca_oob_tcp_msg_send_handler(mca_oob_tcp_msg_t* msg, struct mca_oob_tcp_peer_t * peer)
{
int rc;
while(1) {
rc = writev(peer->peer_sd, msg->msg_rwptr, msg->msg_rwnum);
if(rc < 0) {
if(opal_socket_errno == EINTR)
continue;
/* 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 */
else if (opal_socket_errno == EAGAIN || opal_socket_errno == EWOULDBLOCK)
return false;
else {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_msg_send_handler: writev failed: %s (%d)",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)),
strerror(opal_socket_errno),
opal_socket_errno);
mca_oob_tcp_peer_close(peer);
msg->msg_rc = ORTE_ERR_CONNECTION_FAILED;
return true;
}
}
msg->msg_rc += rc;
do {/* while there is still more iovecs to write */
if(rc < (int)msg->msg_rwptr->iov_len) {
msg->msg_rwptr->iov_len -= rc;
msg->msg_rwptr->iov_base = (ompi_iov_base_ptr_t)((char *) msg->msg_rwptr->iov_base + rc);
break;
} else {
rc -= msg->msg_rwptr->iov_len;
(msg->msg_rwnum)--;
(msg->msg_rwptr)++;
if(0 == msg->msg_rwnum) {
return true;
}
}
} while(msg->msg_rwnum);
}
}
/*
* Receives message data.
* @param msg the message to be recieved into
* @param peer the peer to recieve from
* @retval true if the whole message was received
* @retval false if the whole message was not received
*/
bool mca_oob_tcp_msg_recv_handler(mca_oob_tcp_msg_t* msg, struct mca_oob_tcp_peer_t * peer)
{
/* has entire header been received */
if(msg->msg_rwptr == msg->msg_rwiov) {
if(mca_oob_tcp_msg_recv(msg, peer) == false)
return false;
/* allocate a buffer for the receive */
MCA_OOB_TCP_HDR_NTOH(&msg->msg_hdr);
if(msg->msg_hdr.msg_size > 0) {
msg->msg_rwbuf = malloc(msg->msg_hdr.msg_size);
if(NULL == msg->msg_rwbuf) {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_msg_recv_handler: malloc(%d) failed\n",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)),
msg->msg_hdr.msg_size);
mca_oob_tcp_peer_close(peer);
return false;
}
msg->msg_rwiov[1].iov_base = (ompi_iov_base_ptr_t)msg->msg_rwbuf;
msg->msg_rwiov[1].iov_len = msg->msg_hdr.msg_size;
msg->msg_rwnum = 1;
} else {
msg->msg_rwiov[1].iov_base = NULL;
msg->msg_rwiov[1].iov_len = 0;
msg->msg_rwnum = 0;
}
}
/* do the right thing based on the message type */
switch(msg->msg_hdr.msg_type) {
case MCA_OOB_TCP_IDENT:
/* done - there is nothing else to receive */
return true;
case MCA_OOB_TCP_PING:
/* done - there is nothing else to receive */
return true;
case MCA_OOB_TCP_DATA:
/* finish receiving message */
return mca_oob_tcp_msg_recv(msg, peer);
default:
return true;
}
}
/**
* Process the current iovec
*/
static bool mca_oob_tcp_msg_recv(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer)
{
int rc;
while(msg->msg_rwnum) {
rc = readv(peer->peer_sd, msg->msg_rwptr, msg->msg_rwnum);
if(rc < 0) {
if(opal_socket_errno == EINTR)
continue;
/* 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 */
else if (opal_socket_errno == EAGAIN || opal_socket_errno == EWOULDBLOCK)
return false;
else {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_msg_recv: readv failed: %s (%d)",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)),
strerror(opal_socket_errno),
opal_socket_errno);
mca_oob_tcp_peer_close(peer);
mca_oob_call_exception_handlers(&peer->peer_name, MCA_OOB_PEER_DISCONNECTED);
return false;
}
} else if (rc == 0) {
if(mca_oob_tcp_component.tcp_debug >= OOB_TCP_DEBUG_CONNECT_FAIL) {
opal_output(0, "[%lu,%lu,%lu]-[%lu,%lu,%lu] mca_oob_tcp_msg_recv: peer closed connection",
ORTE_NAME_ARGS(orte_process_info.my_name),
ORTE_NAME_ARGS(&(peer->peer_name)));
}
mca_oob_tcp_peer_close(peer);
mca_oob_call_exception_handlers(&peer->peer_name, MCA_OOB_PEER_DISCONNECTED);
return false;
}
do {
if(rc < (int)msg->msg_rwptr->iov_len) {
msg->msg_rwptr->iov_len -= rc;
msg->msg_rwptr->iov_base = (ompi_iov_base_ptr_t)((char *) msg->msg_rwptr->iov_base + rc);
break;
} else {
rc -= msg->msg_rwptr->iov_len;
(msg->msg_rwnum)--;
(msg->msg_rwptr)++;
if(0 == msg->msg_rwnum) {
return true;
}
}
} while(msg->msg_rwnum);
}
return true;
}
/**
* Process a completed message.
*/
void mca_oob_tcp_msg_recv_complete(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer)
{
switch(msg->msg_hdr.msg_type) {
case MCA_OOB_TCP_IDENT:
mca_oob_tcp_msg_ident(msg,peer);
break;
case MCA_OOB_TCP_PING:
mca_oob_tcp_msg_ping(msg,peer);
break;
case MCA_OOB_TCP_DATA:
mca_oob_tcp_msg_data(msg,peer);
break;
default:
opal_output(0, "[%lu,%lu,%lu] mca_oob_tcp_msg_recv_complete: invalid message type: %d from peer [%lu,%lu,%lu]\n",
ORTE_NAME_ARGS(orte_process_info.my_name), msg->msg_hdr.msg_type,
(long)(peer->peer_name.cellid),
(long)(peer->peer_name.jobid),
(long)(peer->peer_name.vpid));
MCA_OOB_TCP_MSG_RETURN(msg);
break;
}
}
/**
* Process an ident message. In this case, we insist that the two process names
* exactly match - hence, we use the orte_ns.compare_fields function, which
* checks each field in a literal manner (i.e., no wildcards).
*/
static void mca_oob_tcp_msg_ident(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer)
{
orte_process_name_t src = msg->msg_hdr.msg_src;
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_lock);
if (orte_ns.compare_fields(ORTE_NS_CMP_ALL, &peer->peer_name, &src) != ORTE_EQUAL) {
orte_hash_table_remove_proc(&mca_oob_tcp_component.tcp_peers, &peer->peer_name);
peer->peer_name = src;
orte_hash_table_set_proc(&mca_oob_tcp_component.tcp_peers, &peer->peer_name, peer);
}
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_lock);
}
/**
* Process a ping message.
*/
static void mca_oob_tcp_msg_ping(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer)
{
/* for now - we dont do anything - may want to send back a response at some poing */
}
/*
* Progress a completed recv:
* (1) signal a posted recv as complete
* (2) queue an unexpected message in the recv list
*/
static void mca_oob_tcp_msg_data(mca_oob_tcp_msg_t* msg, mca_oob_tcp_peer_t* peer)
{
/* attempt to match unexpected message to a posted recv */
mca_oob_tcp_msg_t* post;
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_match_lock);
/* match msg against posted receives */
post = mca_oob_tcp_msg_match_post(&peer->peer_name, msg->msg_hdr.msg_tag);
if(NULL != post) {
if(post->msg_flags & MCA_OOB_ALLOC) {
/* set the users iovec struct to point to pre-allocated buffer */
if(NULL == post->msg_uiov || 0 == post->msg_ucnt) {
post->msg_rc = ORTE_ERR_BAD_PARAM;
} else {
/* first iovec of recv message contains the header -
* subsequent contain user data
*/
post->msg_uiov[0].iov_base = (ompi_iov_base_ptr_t)msg->msg_rwbuf;
post->msg_uiov[0].iov_len = msg->msg_hdr.msg_size;
post->msg_rc = msg->msg_hdr.msg_size;
msg->msg_rwbuf = NULL;
}
} else {
/* copy msg data into posted recv */
post->msg_rc = mca_oob_tcp_msg_copy(msg, post->msg_uiov, post->msg_ucnt);
if(post->msg_flags & MCA_OOB_TRUNC) {
int i, size = 0;
for(i=1; i<msg->msg_rwcnt+1; i++)
size += msg->msg_rwiov[i].iov_len;
post->msg_rc = size;
}
}
if(post->msg_flags & MCA_OOB_PEEK) {
/* will need message for actual receive */
opal_list_append(&mca_oob_tcp_component.tcp_msg_recv, &msg->super.super);
} else {
MCA_OOB_TCP_MSG_RETURN(msg);
}
mca_oob_tcp_component.tcp_match_count++;
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
if(post->msg_flags & MCA_OOB_PERSISTENT) {
post->msg_cbfunc(
post->msg_rc,
&peer->peer_name,
post->msg_uiov,
post->msg_ucnt,
post->msg_hdr.msg_tag,
post->msg_cbdata);
} else {
mca_oob_tcp_msg_complete(post, &peer->peer_name);
}
OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_match_lock);
if(--mca_oob_tcp_component.tcp_match_count == 0)
opal_condition_signal(&mca_oob_tcp_component.tcp_match_cond);
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
} else {
opal_list_append(&mca_oob_tcp_component.tcp_msg_recv, (opal_list_item_t*)msg);
OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
}
}
/*
* Called to copy the results of a message into user supplied iovec array.
* @param msg (IN) Message send that is in progress.
* @param iov (IN) Iovec array of user supplied buffers.
* @retval count Number of elements in iovec array.
*/
int mca_oob_tcp_msg_copy(mca_oob_tcp_msg_t* msg, struct iovec* iov, int count)
{
int i;
unsigned char* src_ptr = (unsigned char*)msg->msg_rwbuf;
size_t src_len = msg->msg_hdr.msg_size;
struct iovec *dst = iov;
int rc = 0;
for(i=0; i<count; i++) {
unsigned char* dst_ptr = (unsigned char*)dst->iov_base;
size_t dst_len = dst->iov_len;
while(dst_len > 0) {
size_t len = (dst_len <= src_len) ? dst_len : src_len;
memcpy(dst_ptr, src_ptr, len);
rc += len;
dst_ptr += len;
dst_len -= len;
src_ptr += len;
src_len -= len;
if(src_len == 0) {
return rc;
}
}
dst++;
}
return rc;
}
/*
* Match name to a message that has been received asynchronously (unexpected).
*
* @param name (IN) Name associated with peer or wildcard to match first posted recv.
* @return msg Matched message or NULL.
*
* Note - this routine requires the caller to be holding the module lock.
*/
mca_oob_tcp_msg_t* mca_oob_tcp_msg_match_recv(orte_process_name_t* name, int tag)
{
mca_oob_tcp_msg_t* msg;
for(msg = (mca_oob_tcp_msg_t*) opal_list_get_first(&mca_oob_tcp_component.tcp_msg_recv);
msg != (mca_oob_tcp_msg_t*) opal_list_get_end(&mca_oob_tcp_component.tcp_msg_recv);
msg = (mca_oob_tcp_msg_t*) opal_list_get_next(msg)) {
if(ORTE_EQUAL == orte_dss.compare(name, &msg->msg_peer, ORTE_NAME)) {
if (tag == msg->msg_hdr.msg_tag) {
return msg;
}
}
}
return NULL;
}
/*
* Match name to a posted recv request.
*
* @param name (IN) Name associated with peer or wildcard to match first posted recv.
* @return msg Matched message or NULL.
*
* Note - this routine requires the caller to be holding the module lock.
*/
mca_oob_tcp_msg_t* mca_oob_tcp_msg_match_post(orte_process_name_t* name, int tag)
{
mca_oob_tcp_msg_t* msg;
for(msg = (mca_oob_tcp_msg_t*) opal_list_get_first(&mca_oob_tcp_component.tcp_msg_post);
msg != (mca_oob_tcp_msg_t*) opal_list_get_end(&mca_oob_tcp_component.tcp_msg_post);
msg = (mca_oob_tcp_msg_t*) opal_list_get_next(msg)) {
if(ORTE_EQUAL == orte_dss.compare(name, &msg->msg_peer, ORTE_NAME)) {
if (msg->msg_hdr.msg_tag == tag) {
if((msg->msg_flags & MCA_OOB_PERSISTENT) == 0) {
opal_list_remove_item(&mca_oob_tcp_component.tcp_msg_post, &msg->super.super);
}
return msg;
}
}
}
return NULL;
}
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