void orte_iof_hnp_stdin_cb(int fd, short event, void *cbdata)
{
bool should_process = orte_iof_hnp_stdin_check(0);
if (should_process) {
mca_iof_hnp_component.stdinev->active = true;
opal_event_add(&(mca_iof_hnp_component.stdinev->ev), 0);
} else {
opal_event_del(&(mca_iof_hnp_component.stdinev->ev));
mca_iof_hnp_component.stdinev->active = false;
}
}
/* Setup to read local data. If the tag is other than STDIN,
* then this is output being pushed from one of my child processes
* and I'll write the data out myself. If the tag is STDIN,
* then I need to setup to read from my stdin, and send anything
* I get to the specified dst_name. The dst_name in this case tells
* us which procs are to get stdin - only two options are supported:
*
* (a) a specific name, usually vpid=0; or
*
* (b) all procs, specified by vpid=ORTE_VPID_WILDCARD
*
* The orte_plm_base_launch_apps function calls iof.push after
* the procs are launched and tells us how to distribute stdin. This
* ensures that the procs are started -before- we begin reading stdin
* and attempting to send it to remote procs
*/
static int hnp_push(const orte_process_name_t* dst_name, orte_iof_tag_t src_tag, int fd)
{
orte_job_t *jdata;
orte_proc_t *proc;
orte_iof_sink_t *sink;
orte_iof_proc_t *proct;
opal_list_item_t *item;
int flags;
char *outfile;
int fdout;
orte_odls_job_t *jobdat=NULL;
int np, numdigs;
int rc;
orte_ns_cmp_bitmask_t mask;
/* don't do this if the dst vpid is invalid or the fd is negative! */
if (ORTE_VPID_INVALID == dst_name->vpid || fd < 0) {
return ORTE_SUCCESS;
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s iof:hnp pushing fd %d for process %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
fd, ORTE_NAME_PRINT(dst_name)));
if (!(src_tag & ORTE_IOF_STDIN)) {
/* set the file descriptor to non-blocking - do this before we setup
* and activate the read event in case it fires right away
*/
if((flags = fcntl(fd, F_GETFL, 0)) < 0) {
opal_output(orte_iof_base.iof_output, "[%s:%d]: fcntl(F_GETFL) failed with errno=%d\n",
__FILE__, __LINE__, errno);
} else {
flags |= O_NONBLOCK;
fcntl(fd, F_SETFL, flags);
}
/* do we already have this process in our list? */
for (item = opal_list_get_first(&mca_iof_hnp_component.procs);
item != opal_list_get_end(&mca_iof_hnp_component.procs);
item = opal_list_get_next(item)) {
proct = (orte_iof_proc_t*)item;
mask = ORTE_NS_CMP_ALL;
if (OPAL_EQUAL == orte_util_compare_name_fields(mask, &proct->name, dst_name)) {
/* found it */
goto SETUP;
}
}
/* if we get here, then we don't yet have this proc in our list */
proct = OBJ_NEW(orte_iof_proc_t);
proct->name.jobid = dst_name->jobid;
proct->name.vpid = dst_name->vpid;
ORTE_EPOCH_SET(proct->name.epoch,dst_name->epoch);
opal_list_append(&mca_iof_hnp_component.procs, &proct->super);
/* see if we are to output to a file */
if (NULL != orte_output_filename) {
/* get the local jobdata for this proc */
for (item = opal_list_get_first(&orte_local_jobdata);
item != opal_list_get_end(&orte_local_jobdata);
item = opal_list_get_next(item)) {
jobdat = (orte_odls_job_t*)item;
if (jobdat->jobid == proct->name.jobid) {
break;
}
}
if (NULL == jobdat) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
np = jobdat->num_procs / 10;
/* determine the number of digits required for max vpid */
numdigs = 1;
while (np > 0) {
numdigs++;
np = np / 10;
}
/* construct the filename */
asprintf(&outfile, "%s.%d.%0*lu", orte_output_filename,
(int)ORTE_LOCAL_JOBID(proct->name.jobid),
numdigs, (unsigned long)proct->name.vpid);
/* create the file */
fdout = open(outfile, O_CREAT|O_RDWR|O_TRUNC, 0644);
free(outfile);
if (fdout < 0) {
/* couldn't be opened */
ORTE_ERROR_LOG(ORTE_ERR_FILE_OPEN_FAILURE);
return ORTE_ERR_FILE_OPEN_FAILURE;
}
/* define a sink to that file descriptor */
ORTE_IOF_SINK_DEFINE(&sink, dst_name, fdout, ORTE_IOF_STDOUTALL,
orte_iof_base_write_handler,
&mca_iof_hnp_component.sinks);
}
SETUP:
/* define a read event and activate it */
if (src_tag & ORTE_IOF_STDOUT) {
ORTE_IOF_READ_EVENT(&proct->revstdout, dst_name, fd, ORTE_IOF_STDOUT,
orte_iof_hnp_read_local_handler, false);
} else if (src_tag & ORTE_IOF_STDERR) {
ORTE_IOF_READ_EVENT(&proct->revstderr, dst_name, fd, ORTE_IOF_STDERR,
orte_iof_hnp_read_local_handler, false);
} else if (src_tag & ORTE_IOF_STDDIAG) {
ORTE_IOF_READ_EVENT(&proct->revstddiag, dst_name, fd, ORTE_IOF_STDDIAG,
orte_iof_hnp_read_local_handler, false);
}
/* if -all- of the readevents for this proc have been defined, then
* activate them. Otherwise, we can think that the proc is complete
* because one of the readevents fires -prior- to all of them having
* been defined!
*/
if (NULL != proct->revstdout && NULL != proct->revstderr && NULL != proct->revstddiag) {
proct->revstdout->active = true;
opal_event_add(&(proct->revstdout->ev), 0);
proct->revstderr->active = true;
opal_event_add(&(proct->revstderr->ev), 0);
proct->revstddiag->active = true;
opal_event_add(&(proct->revstddiag->ev), 0);
}
return ORTE_SUCCESS;
}
/* if we are pushing stdin, this is happening only during launch - setup
* a target for this destination if it is going somewhere other than me
*/
if (ORTE_VPID_WILDCARD == dst_name->vpid) {
/* if wildcard, define a sink with that info so it gets sent out */
ORTE_IOF_SINK_DEFINE(&sink, dst_name, -1, ORTE_IOF_STDIN,
stdin_write_handler,
&mca_iof_hnp_component.sinks);
} else {
/* no - lookup the proc's daemon and set that into sink */
if (NULL == (jdata = orte_get_job_data_object(dst_name->jobid))) {
ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
return ORTE_ERR_BAD_PARAM;
}
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(jdata->procs, dst_name->vpid))) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
/* if it is me, then don't set this up - we'll get it on the pull */
if (ORTE_PROC_MY_NAME->vpid != proc->node->daemon->name.vpid) {
ORTE_IOF_SINK_DEFINE(&sink, dst_name, -1, ORTE_IOF_STDIN,
stdin_write_handler,
&mca_iof_hnp_component.sinks);
sink->daemon.jobid = ORTE_PROC_MY_NAME->jobid;
sink->daemon.vpid = proc->node->daemon->name.vpid;
ORTE_EPOCH_SET(sink->daemon.epoch,orte_ess.proc_get_epoch(&sink->daemon));
}
}
/* now setup the read - but check to only do this once */
if (NULL == mca_iof_hnp_component.stdinev) {
/* Since we are the HNP, we don't want to set nonblocking on our
* stdio stream. If we do so, we set the file descriptor to
* non-blocking for everyone that has that file descriptor, which
* includes everyone else in our shell pipeline chain. (See
* http://lists.freebsd.org/pipermail/freebsd-hackers/2005-January/009742.html).
* This causes things like "mpirun -np 1 big_app | cat" to lose
* output, because cat's stdout is then ALSO non-blocking and cat
* isn't built to deal with that case (same with almost all other
* unix text utils).
*/
if (0 != fd) {
if((flags = fcntl(fd, F_GETFL, 0)) < 0) {
opal_output(orte_iof_base.iof_output, "[%s:%d]: fcntl(F_GETFL) failed with errno=%d\n",
__FILE__, __LINE__, errno);
} else {
flags |= O_NONBLOCK;
fcntl(fd, F_SETFL, flags);
}
}
if (isatty(fd)) {
/* We should avoid trying to read from stdin if we
* have a terminal, but are backgrounded. Catch the
* signals that are commonly used when we switch
* between being backgrounded and not. If the
* filedescriptor is not a tty, don't worry about it
* and always stay connected.
*/
opal_event_signal_set(opal_event_base, &mca_iof_hnp_component.stdinsig,
SIGCONT, orte_iof_hnp_stdin_cb,
NULL);
/* setup a read event to read stdin, but don't activate it yet. The
* dst_name indicates who should receive the stdin. If that recipient
* doesn't do a corresponding pull, however, then the stdin will
* be dropped upon receipt at the local daemon
*/
ORTE_IOF_READ_EVENT(&mca_iof_hnp_component.stdinev,
dst_name, fd, ORTE_IOF_STDIN,
orte_iof_hnp_read_local_handler, false);
/* check to see if we want the stdin read event to be
* active - we will always at least define the event,
* but may delay its activation
*/
if (!(src_tag & ORTE_IOF_STDIN) || orte_iof_hnp_stdin_check(fd)) {
mca_iof_hnp_component.stdinev->active = true;
if (OPAL_SUCCESS != (rc = opal_event_add(&(mca_iof_hnp_component.stdinev->ev), 0))) {
ORTE_ERROR_LOG(rc);
}
}
} else {
/* if we are not looking at a tty, just setup a read event
* and activate it
*/
ORTE_IOF_READ_EVENT(&mca_iof_hnp_component.stdinev,
dst_name, fd, ORTE_IOF_STDIN,
orte_iof_hnp_read_local_handler, true);
}
}
return ORTE_SUCCESS;
}
/* this is the read handler for my own child procs. In this case,
* the data is going nowhere - I just output it myself
*/
void orte_iof_hnp_read_local_handler(int fd, short event, void *cbdata)
{
orte_iof_read_event_t *rev = (orte_iof_read_event_t*)cbdata;
unsigned char data[ORTE_IOF_BASE_MSG_MAX];
int32_t numbytes;
opal_list_item_t *item;
orte_iof_proc_t *proct;
int rc;
OPAL_THREAD_LOCK(&mca_iof_hnp_component.lock);
/* read up to the fragment size */
#if !defined(__WINDOWS__)
numbytes = read(fd, data, sizeof(data));
#else
{
DWORD readed;
HANDLE handle = (HANDLE)_get_osfhandle(fd);
ReadFile(handle, data, sizeof(data), &readed, NULL);
numbytes = (int)readed;
}
#endif /* !defined(__WINDOWS__) */
if (numbytes < 0) {
/* either we have a connection error or it was a non-blocking read */
/* non-blocking, retry */
if (EAGAIN == errno || EINTR == errno) {
opal_event_add(&rev->ev, 0);
OPAL_THREAD_UNLOCK(&mca_iof_hnp_component.lock);
return;
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s iof:hnp:read handler %s Error on connection:%d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&rev->name), fd));
/* Un-recoverable error. Allow the code to flow as usual in order to
* to send the zero bytes message up the stream, and then close the
* file descriptor and delete the event.
*/
numbytes = 0;
}
/* is this read from our stdin? */
if (ORTE_IOF_STDIN & rev->tag) {
/* if job termination has been ordered, just ignore the
* data and delete the read event
*/
if (orte_job_term_ordered) {
OBJ_RELEASE(mca_iof_hnp_component.stdinev);
OPAL_THREAD_UNLOCK(&mca_iof_hnp_component.lock);
return;
}
/* cycle through our list of sinks */
for (item = opal_list_get_first(&mca_iof_hnp_component.sinks);
item != opal_list_get_end(&mca_iof_hnp_component.sinks);
item = opal_list_get_next(item)) {
orte_iof_sink_t* sink = (orte_iof_sink_t*)item;
/* only look at stdin sinks */
if (!(ORTE_IOF_STDIN & sink->tag)) {
continue;
}
/* if the daemon is me, then this is a local sink */
if (ORTE_PROC_MY_NAME->jobid == sink->daemon.jobid &&
ORTE_PROC_MY_NAME->vpid == sink->daemon.vpid) {
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s read %d bytes from stdin - writing to %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), numbytes,
ORTE_NAME_PRINT(&rev->name)));
/* send the bytes down the pipe - we even send 0 byte events
* down the pipe so it forces out any preceding data before
* closing the output stream
*/
if (NULL != sink->wev) {
if (ORTE_IOF_MAX_INPUT_BUFFERS < orte_iof_base_write_output(&rev->name, rev->tag, data, numbytes, sink->wev)) {
/* getting too backed up - stop the read event for now if it is still active */
if (mca_iof_hnp_component.stdinev->active) {
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"buffer backed up - holding"));
mca_iof_hnp_component.stdinev->active = false;
}
OPAL_THREAD_UNLOCK(&mca_iof_hnp_component.lock);
return;
}
}
} else {
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s sending %d bytes from stdin to daemon %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), numbytes,
ORTE_NAME_PRINT(&sink->daemon)));
/* send the data to the daemon so it can
* write it to the proc's fd - in this case,
* we pass sink->name to indicate who is to
* receive the data. If the connection closed,
* numbytes will be zero so zero bytes will be
* sent - this will tell the daemon to close
* the fd for stdin to that proc
*/
orte_iof_hnp_send_data_to_endpoint(&sink->daemon, &sink->name, ORTE_IOF_STDIN, data, numbytes);
}
}
/* if num_bytes was zero, then we need to terminate the event */
if (0 == numbytes) {
/* this will also close our stdin file descriptor */
OBJ_RELEASE(mca_iof_hnp_component.stdinev);
} else {
/* if we are looking at a tty, then we just go ahead and restart the
* read event assuming we are not backgrounded
*/
if (orte_iof_hnp_stdin_check(fd)) {
restart_stdin(fd, 0, NULL);
} else {
/* delay for awhile and then restart */
ORTE_TIMER_EVENT(0, 10000, restart_stdin);
}
}
/* nothing more to do */
OPAL_THREAD_UNLOCK(&mca_iof_hnp_component.lock);
return;
}
/* this must be output from one of my local procs - see
* if anyone else has requested a copy of this info
*/
for (item = opal_list_get_first(&mca_iof_hnp_component.sinks);
item != opal_list_get_end(&mca_iof_hnp_component.sinks);
item = opal_list_get_next(item)) {
orte_iof_sink_t *sink = (orte_iof_sink_t*)item;
/* if the target isn't set, then this sink is for another purpose - ignore it */
if (ORTE_JOBID_INVALID == sink->daemon.jobid) {
continue;
}
if ((sink->tag & rev->tag) &&
sink->name.jobid == rev->name.jobid &&
(ORTE_VPID_WILDCARD == sink->name.vpid || sink->name.vpid == rev->name.vpid)) {
/* need to send the data to the remote endpoint - if
* the connection closed, numbytes will be zero, so
* the remote endpoint will know to close its local fd.
* In this case, we pass rev->name to indicate who the
* data came from.
*/
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s sending data to tool %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&sink->daemon)));
orte_iof_hnp_send_data_to_endpoint(&sink->daemon, &rev->name, rev->tag, data, numbytes);
}
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s read %d bytes from %s of %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), numbytes,
(ORTE_IOF_STDOUT & rev->tag) ? "stdout" : ((ORTE_IOF_STDERR & rev->tag) ? "stderr" : "stddiag"),
ORTE_NAME_PRINT(&rev->name)));
if (0 == numbytes) {
/* if we read 0 bytes from the stdout/err/diag, there is
* nothing to output - find this proc on our list and
* release the appropriate event. This will delete the
* read event and close the file descriptor
*/
for (item = opal_list_get_first(&mca_iof_hnp_component.procs);
item != opal_list_get_end(&mca_iof_hnp_component.procs);
item = opal_list_get_next(item)) {
proct = (orte_iof_proc_t*)item;
if (proct->name.jobid == rev->name.jobid &&
proct->name.vpid == rev->name.vpid) {
/* found it - release corresponding event. This deletes
* the read event and closes the file descriptor
*/
if (rev->tag & ORTE_IOF_STDOUT) {
OBJ_RELEASE(proct->revstdout);
} else if (rev->tag & ORTE_IOF_STDERR) {
OBJ_RELEASE(proct->revstderr);
} else if (rev->tag & ORTE_IOF_STDDIAG) {
OBJ_RELEASE(proct->revstddiag);
}
/* check to see if they are all done */
if (NULL == proct->revstdout &&
NULL == proct->revstderr &&
NULL == proct->revstddiag) {
opal_buffer_t cmdbuf;
orte_daemon_cmd_flag_t command;
/* this proc's iof is complete */
opal_list_remove_item(&mca_iof_hnp_component.procs, item);
/* setup a cmd to notify that the iof is complete */
OBJ_CONSTRUCT(&cmdbuf, opal_buffer_t);
command = ORTE_DAEMON_IOF_COMPLETE;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&cmdbuf, &command, 1, ORTE_DAEMON_CMD))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&cmdbuf, &proct->name, 1, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
ORTE_MESSAGE_EVENT(ORTE_PROC_MY_NAME, &cmdbuf, ORTE_RML_TAG_DAEMON, orte_daemon_cmd_processor);
CLEANUP:
OBJ_DESTRUCT(&cmdbuf);
OBJ_RELEASE(proct);
}
break;
}
}
OPAL_THREAD_UNLOCK(&mca_iof_hnp_component.lock);
return;
}
/* see if the user wanted the output directed to files */
if (NULL != orte_output_filename) {
/* find the sink for this rank */
for (item = opal_list_get_first(&mca_iof_hnp_component.sinks);
item != opal_list_get_end(&mca_iof_hnp_component.sinks);
item = opal_list_get_next(item)) {
orte_iof_sink_t *sink = (orte_iof_sink_t*)item;
/* if the target is set, then this sink is for another purpose - ignore it */
if (ORTE_JOBID_INVALID != sink->daemon.jobid) {
continue;
}
/* if this sink isn't for output, ignore it */
if (ORTE_IOF_STDIN & sink->tag) {
continue;
}
/* is this the desired proc? */
if (sink->name.jobid == rev->name.jobid &&
sink->name.vpid == rev->name.vpid) {
/* output to the corresponding file */
orte_iof_base_write_output(&rev->name, rev->tag, data, numbytes, sink->wev);
/* done */
break;
}
}
} else {
/* output this to our local output */
if (ORTE_IOF_STDOUT & rev->tag || orte_xml_output) {
orte_iof_base_write_output(&rev->name, rev->tag, data, numbytes, orte_iof_base.iof_write_stdout->wev);
} else {
orte_iof_base_write_output(&rev->name, rev->tag, data, numbytes, orte_iof_base.iof_write_stderr->wev);
}
}
/* re-add the event */
opal_event_add(&rev->ev, 0);
OPAL_THREAD_UNLOCK(&mca_iof_hnp_component.lock);
return;
}
