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9971bc9d95
openmpi/orte/mca/filem/rsh/filem_rsh_module.c
Josh Hursey 9971bc9d95 Merge in the mca_base_select changes per RFC: 
http://www.open-mpi.org/community/lists/devel/2008/04/3779.php

{{{
svn merge -r 18276:18380 https://svn.open-mpi.org/svn/ompi/tmp-public/jjh-mca-play .
}}}

Any components not in the trunk, but in one of the effected frameworks *must* be
updated. Contact the list, look at the RFC, or look at the diff for how to do this.

Sorry for the early commit of this, but I wanted to get it in today (per RFC) and
didn't know if I would have a chance later today.

This commit was SVN r18381.
2008-05-06 18:08:45 +00:00

1332 строки
45 KiB
C
Исходник Ответственный История

/*
* Copyright (c) 2004-2008 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 "orte_config.h"
#include "orte/constants.h"
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/event/event.h"
#include "opal/util/output.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/util/output.h"
#include "opal/util/show_help.h"
#include "opal/util/argv.h"
#include "opal/util/opal_environ.h"
#include "opal/threads/mutex.h"
#include "opal/threads/threads.h"
#include "opal/threads/condition.h"
#include "orte/util/name_fns.h"
#include "orte/util/proc_info.h"
#include "orte/runtime/orte_globals.h"
#include "orte/runtime/orte_wait.h"
#include "orte/mca/filem/filem.h"
#include "orte/mca/filem/base/base.h"
#include "filem_rsh.h"
/**********
* Local Function and Variable Declarations
**********/
static int orte_filem_rsh_start_copy(orte_filem_base_request_t *request);
static int orte_filem_rsh_start_rm(orte_filem_base_request_t *request);
static int orte_filem_rsh_start_command(orte_filem_base_process_set_t *proc_set,
orte_filem_base_file_set_t *file_set,
char * command,
orte_filem_base_request_t *request,
int index);
static int start_child(char * command,
orte_filem_base_request_t *request,
int index);
static int orte_filem_rsh_query_remote_path(char **remote_ref,
orte_process_name_t *proc,
int *flag);
static void filem_rsh_waitpid_cb(pid_t pid, int status, void* cbdata);
/* Permission to send functionality */
static int orte_filem_rsh_permission_listener_init(orte_rml_buffer_callback_fn_t rml_cbfunc);
static int orte_filem_rsh_permission_listener_cancel(void);
static void orte_filem_rsh_permission_callback(int status,
orte_process_name_t* sender,
opal_buffer_t *buffer,
orte_rml_tag_t tag,
void* cbdata);
static int orte_filem_rsh_permission_ask(orte_process_name_t* sender, int num_sends);
static int permission_send_done(orte_process_name_t* sender, int num_avail);
static int permission_send_num_allowed(orte_process_name_t* sender, int num_allowed);
/*************
* Local work pool structure
*************/
int cur_num_incomming = 0;
int cur_num_outgoing = 0;
static bool work_pool_all_done = false;
static opal_mutex_t work_pool_lock;
static opal_condition_t work_pool_cond;
/*
* work_pool_waiting:
* - processes that are waiting for permission to put() to me
*/
opal_list_t work_pool_waiting;
/*
* work_pool_pending:
* - put requests waiting on permission to send to peer
*/
opal_list_t work_pool_pending;
/*
* work_pool_active:
* - put requests currently sending
*/
opal_list_t work_pool_active;
struct orte_filem_rsh_work_pool_item_t {
/** This is an object, so must have a super */
opal_list_item_t super;
/** Command to exec */
char * command;
/** Pointer to FileM Request */
orte_filem_base_request_t *request;
/** Index into the request */
int index;
/** Process Set */
orte_filem_base_process_set_t proc_set;
/** File Set */
orte_filem_base_file_set_t file_set;
/** If this item is active */
bool active;
};
typedef struct orte_filem_rsh_work_pool_item_t orte_filem_rsh_work_pool_item_t;
OBJ_CLASS_DECLARATION(orte_filem_rsh_work_pool_item_t);
void orte_filem_rsh_work_pool_construct(orte_filem_rsh_work_pool_item_t *obj);
void orte_filem_rsh_work_pool_destruct( orte_filem_rsh_work_pool_item_t *obj);
OBJ_CLASS_INSTANCE(orte_filem_rsh_work_pool_item_t,
opal_list_item_t,
orte_filem_rsh_work_pool_construct,
orte_filem_rsh_work_pool_destruct);
void orte_filem_rsh_work_pool_construct(orte_filem_rsh_work_pool_item_t *obj) {
obj->command = NULL;
obj->request = NULL;
obj->index = 0;
OBJ_CONSTRUCT(&(obj->proc_set), orte_filem_base_process_set_t);
OBJ_CONSTRUCT(&(obj->file_set), orte_filem_base_file_set_t);
obj->active = false;
}
void orte_filem_rsh_work_pool_destruct( orte_filem_rsh_work_pool_item_t *obj) {
if( NULL != obj->command ) {
free(obj->command);
obj->command = NULL;
}
if( NULL != obj->request ) {
OBJ_RELEASE(obj->request);
obj->request = NULL;
}
obj->index = 0;
OBJ_DESTRUCT(&(obj->proc_set));
OBJ_DESTRUCT(&(obj->file_set));
obj->active = false;
}
/*
* Rsh module
*/
static orte_filem_base_module_t loc_module = {
/** Initialization Function */
orte_filem_rsh_module_init,
/** Finalization Function */
orte_filem_rsh_module_finalize,
orte_filem_rsh_put,
orte_filem_rsh_put_nb,
orte_filem_rsh_get,
orte_filem_rsh_get_nb,
orte_filem_rsh_rm,
orte_filem_rsh_rm_nb,
orte_filem_rsh_wait,
orte_filem_rsh_wait_all
};
/*
* MCA Functions
*/
int orte_filem_rsh_component_query(mca_base_module_t **module, int *priority)
{
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: component_query()"));
*priority = mca_filem_rsh_component.super.priority;
*module = (mca_base_module_t *)&loc_module;
return ORTE_SUCCESS;
}
int orte_filem_rsh_module_init(void)
{
int ret;
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: module_init()"));
/*
* Allocate the work pools
*/
OBJ_CONSTRUCT(&work_pool_waiting, opal_list_t);
OBJ_CONSTRUCT(&work_pool_pending, opal_list_t);
OBJ_CONSTRUCT(&work_pool_active, opal_list_t);
OBJ_CONSTRUCT(&work_pool_lock, opal_mutex_t);
OBJ_CONSTRUCT(&work_pool_cond, opal_condition_t);
work_pool_all_done = false;
/*
* Start the listener for permission
*/
if( ORTE_SUCCESS != (ret = orte_filem_rsh_permission_listener_init(orte_filem_rsh_permission_callback) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh:init Failed to start listener\n");
return ret;
}
/* start the base receive */
if (ORTE_SUCCESS != (ret = orte_filem_base_comm_start())) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh:init Failed to start base receive\n");
return ret;
}
return ORTE_SUCCESS;
}
int orte_filem_rsh_module_finalize(void)
{
opal_list_item_t *item = NULL;
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: module_finalize()"));
/*
* Make sure all active requests are completed
*/
while(0 < opal_list_get_size(&work_pool_active) ) {
; /* JJH TODO... */
}
/*
* Stop the listeners
*/
orte_filem_rsh_permission_listener_cancel();
/*
* Stop the base receive
*/
orte_filem_base_comm_stop();
/*
* Deallocate the work pools
*/
while( NULL != (item = opal_list_remove_first(&work_pool_waiting)) ) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&work_pool_waiting);
while( NULL != (item = opal_list_remove_first(&work_pool_pending)) ) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&work_pool_pending);
while( NULL != (item = opal_list_remove_first(&work_pool_active)) ) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&work_pool_active);
OBJ_DESTRUCT(&work_pool_lock);
OBJ_DESTRUCT(&work_pool_cond);
return ORTE_SUCCESS;
}
/******************
* Local functions
******************/
int orte_filem_rsh_put(orte_filem_base_request_t *request)
{
int ret;
if( ORTE_SUCCESS != (ret = orte_filem_base_prepare_request(request, ORTE_FILEM_MOVE_TYPE_PUT) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: put(): Failed to preare the request structure (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_copy(request) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: put(): Failed to post the request (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_wait(request)) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: put(): Failed to wait on the request (%d)", ret);
return ret;
}
return ORTE_SUCCESS;
}
int orte_filem_rsh_put_nb(orte_filem_base_request_t *request)
{
int ret;
if( ORTE_SUCCESS != (ret = orte_filem_base_prepare_request(request, ORTE_FILEM_MOVE_TYPE_PUT) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: put(): Failed to preare the request structure (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_copy(request) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: put(): Failed to post the request (%d)", ret);
return ret;
}
return ORTE_SUCCESS;
}
int orte_filem_rsh_get(orte_filem_base_request_t *request)
{
int ret;
if( ORTE_SUCCESS != (ret = orte_filem_base_prepare_request(request, ORTE_FILEM_MOVE_TYPE_GET) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: get(): Failed to preare the request structure (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_copy(request) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: get(): Failed to post the request (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_wait(request)) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: get(): Failed to wait on the request (%d)", ret);
return ret;
}
return ORTE_SUCCESS;
}
int orte_filem_rsh_get_nb(orte_filem_base_request_t *request)
{
int ret;
if( ORTE_SUCCESS != (ret = orte_filem_base_prepare_request(request, ORTE_FILEM_MOVE_TYPE_GET) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: get(): Failed to preare the request structure (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_copy(request) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: get(): Failed to post the request (%d)", ret);
return ret;
}
return ORTE_SUCCESS;
}
int orte_filem_rsh_rm(orte_filem_base_request_t *request)
{
int ret = ORTE_SUCCESS, exit_status = ORTE_SUCCESS;
if( ORTE_SUCCESS != (ret = orte_filem_base_prepare_request(request, ORTE_FILEM_MOVE_TYPE_RM) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: rm(): Failed to prepare on the request (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_rm(request) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: rm(): Failed to start the request (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_wait(request)) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: rm(): Failed to wait on the request (%d)", ret);
return ret;
}
return exit_status;
}
int orte_filem_rsh_rm_nb(orte_filem_base_request_t *request)
{
int ret = ORTE_SUCCESS, exit_status = ORTE_SUCCESS;
if( ORTE_SUCCESS != (ret = orte_filem_base_prepare_request(request, ORTE_FILEM_MOVE_TYPE_RM) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: rm_nb(): Failed to prepare on the request (%d)", ret);
return ret;
}
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_rm(request) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: rm_nb(): Failed to start on the request (%d)", ret);
return ret;
}
return exit_status;
}
int orte_filem_rsh_wait(orte_filem_base_request_t *request)
{
int exit_status = ORTE_SUCCESS;
orte_filem_rsh_work_pool_item_t *wp_item = NULL;
opal_list_item_t *item = NULL;
int i;
int num_finished = 0;
bool found_match = false;
/*
* Stage 0: A pass to see if the request is already done
*/
for(i = 0; i < request->num_mv; ++i) {
if( request->is_done[i] == true &&
request->is_active[i] == true) {
++num_finished;
}
}
while(num_finished < request->num_mv ) {
/*
* Stage 1: Complete all active requests
*/
for(i = 0; i < request->num_mv; ++i) {
/* If the child is still executing (active) then continue
* checking other children
*/
if( request->is_done[i] == false &&
request->is_active[i] == true) {
continue;
}
/* If the child is done executing (!active), but has not been
* collected then do so
*/
else if( request->is_done[i] == true &&
request->is_active[i] == false) {
/*
* Find the reference in the active pool
*/
found_match = false;
for (item = opal_list_get_first( &work_pool_active);
item != opal_list_get_end( &work_pool_active);
item = opal_list_get_next( item) ) {
wp_item = (orte_filem_rsh_work_pool_item_t *)item;
if(request == wp_item->request &&
i == wp_item->index) {
found_match = true;
break;
}
}
/* If no match then assume on the pending list, and continue */
if( !found_match ) {
continue;
}
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: wait(): Transfer complete. Cleanup\n"));
opal_list_remove_item(&work_pool_active, item);
/* Mark as fully done [active = true, done = true]
* It does not make complete sense to call this 'active' when
* it is obviously not, but this is a state [true, true] that
* should only be reached if the transfer has finished
* completely.
*/
request->is_done[i] = true;
request->is_active[i] = true;
/* Tell peer we are finished with a send */
permission_send_done(&(wp_item->proc_set.source), 1);
OBJ_RELEASE(wp_item);
wp_item = NULL;
++num_finished;
}
}
/*
* Wait for a child to complete
*/
if( num_finished < request->num_mv ) {
OPAL_THREAD_LOCK(&work_pool_lock);
opal_condition_wait(&work_pool_cond,
&work_pool_lock);
OPAL_THREAD_UNLOCK(&work_pool_lock);
}
}
/*
* Stage 2: Determine the return value
*/
for(i = 0; i < request->num_mv; ++i) {
if( request->exit_status[i] < 0 ) {
exit_status = request->exit_status[i];
}
}
return exit_status;
}
int orte_filem_rsh_wait_all(opal_list_t * request_list)
{
int ret = ORTE_SUCCESS, exit_status = ORTE_SUCCESS;
opal_list_item_t *item = NULL;
for (item = opal_list_get_first( request_list);
item != opal_list_get_end( request_list);
item = opal_list_get_next( item) ) {
orte_filem_base_request_t *request = (orte_filem_base_request_t *) item;
if( ORTE_SUCCESS != (ret = orte_filem_rsh_wait(request)) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: wait_all(): Wait failed (%d)", ret);
exit_status = ret;
goto cleanup;
}
}
cleanup:
return exit_status;
}
/**************************
* Support functions
**************************/
static int orte_filem_rsh_start_copy(orte_filem_base_request_t *request) {
int ret = ORTE_SUCCESS, exit_status = ORTE_SUCCESS;
opal_list_item_t *f_item = NULL;
opal_list_item_t *p_item = NULL;
char *remote_machine = NULL;
char *remote_file = NULL;
char *command = NULL;
char *dir_arg = NULL;
int cur_index = 0;
/* For each file pair */
for (f_item = opal_list_get_first( &request->file_sets);
f_item != opal_list_get_end( &request->file_sets);
f_item = opal_list_get_next( f_item) ) {
orte_filem_base_file_set_t * f_set = (orte_filem_base_file_set_t*)f_item;
/* For each process set */
for (p_item = opal_list_get_first( &request->process_sets);
p_item != opal_list_get_end( &request->process_sets);
p_item = opal_list_get_next( p_item) ) {
orte_filem_base_process_set_t * p_set = (orte_filem_base_process_set_t*)p_item;
if( request->movement_type == ORTE_FILEM_MOVE_TYPE_PUT ) {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): %s -> %s: Moving file %s to %s\n",
ORTE_NAME_PRINT(&p_set->source),
ORTE_NAME_PRINT(&p_set->sink),
f_set->local_target,
f_set->remote_target));
} else {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): %s -> %s: Moving file %s to %s\n",
ORTE_NAME_PRINT(&p_set->source),
ORTE_NAME_PRINT(&p_set->sink),
f_set->remote_target,
f_set->local_target));
}
/*
* Get the remote machine identifier from the process_name struct
*/
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): %s -> %s: Get node name.\n",
ORTE_NAME_PRINT(&p_set->source),
ORTE_NAME_PRINT(&p_set->sink)));
if( ORTE_SUCCESS != (ret = orte_filem_base_get_proc_node_name(&p_set->source, &remote_machine))) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): Get Node Name failed (%d)", ret);
exit_status = ret;
goto cleanup;
}
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): %s -> %s: Got node name: %s\n",
ORTE_NAME_PRINT(&p_set->source),
ORTE_NAME_PRINT(&p_set->sink),
remote_machine));
/*
* Fix the remote_filename.
* If it is an absolute path, then assume it is valid for the remote server
* ow then we must construct the correct path.
*/
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): %s -> %s: Query remote path (%s).\n",
ORTE_NAME_PRINT(&p_set->source),
ORTE_NAME_PRINT(&p_set->sink),
f_set->remote_target));
remote_file = strdup(f_set->remote_target);
if( ORTE_SUCCESS != (ret = orte_filem_rsh_query_remote_path(&remote_file, &p_set->source, &f_set->target_flag) ) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): Query Remote Path failed (%d)", ret);
exit_status = ret;
goto cleanup;
}
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): %s -> %s: Remote path (%s) is (%s).\n",
ORTE_NAME_PRINT(&p_set->source),
ORTE_NAME_PRINT(&p_set->sink),
f_set->remote_target,
remote_file));
/*
* Transfer the file or directory
*/
if(ORTE_FILEM_TYPE_DIR == f_set->target_flag) {
dir_arg = strdup(" -r ");
}
else if(ORTE_FILEM_TYPE_UNKNOWN == f_set->target_flag) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: copy(): Error: File type unknown");
goto continue_set;
}
else {
dir_arg = strdup("");
}
/*
* If this is the put() routine
*/
if( request->movement_type == ORTE_FILEM_MOVE_TYPE_PUT ) {
asprintf(&command, "%s %s %s %s:%s ",
mca_filem_rsh_component.cp_command,
dir_arg,
f_set->local_target,
remote_machine,
remote_file);
OPAL_OUTPUT_VERBOSE((17, mca_filem_rsh_component.super.output_handle,
"filem:rsh:put about to execute [%s]", command));
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_command(p_set,
f_set,
command,
request,
cur_index)) ) {
exit_status = ret;
goto cleanup;
}
}
/*
* ow it is the get() routine
*/
else {
asprintf(&command, "%s %s %s:%s %s ",
mca_filem_rsh_component.cp_command,
dir_arg,
remote_machine,
remote_file,
f_set->local_target);
OPAL_OUTPUT_VERBOSE((17, mca_filem_rsh_component.super.output_handle,
"filem:rsh:get about to execute [%s]", command));
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_command(p_set,
f_set,
command,
request,
cur_index)) ) {
exit_status = ret;
goto cleanup;
}
}
continue_set:
/* A small bit of cleanup */
if( NULL != dir_arg) {
free(dir_arg);
dir_arg = NULL;
}
if( NULL != remote_file) {
free(remote_file);
remote_file = NULL;
}
if(NULL != remote_machine) {
free(remote_machine);
remote_machine = NULL;
}
++cur_index;
} /* For each process set */
} /* For each file pair */
cleanup:
if( NULL != command )
free(command);
if( NULL != remote_machine)
free(remote_machine);
if( NULL != dir_arg)
free(dir_arg);
if( NULL != remote_file)
free(remote_file);
return exit_status;
}
static int orte_filem_rsh_start_rm(orte_filem_base_request_t *request)
{
int ret = ORTE_SUCCESS, exit_status = ORTE_SUCCESS;
opal_list_item_t *f_item = NULL;
opal_list_item_t *p_item = NULL;
char *command = NULL;
char *remote_machine = NULL;
char *remote_targets = NULL;
char *remote_file = NULL;
char *dir_arg = NULL;
char **remote_file_set = NULL;
int argc = 0;
int cur_index = 0;
/* For each process set */
for (p_item = opal_list_get_first( &request->process_sets);
p_item != opal_list_get_end( &request->process_sets);
p_item = opal_list_get_next( p_item) ) {
orte_filem_base_process_set_t * p_set = (orte_filem_base_process_set_t*)p_item;
/*
* Get the remote machine identifier from the process_name struct
*/
if( ORTE_SUCCESS != (ret = orte_filem_base_get_proc_node_name(&p_set->source, &remote_machine))) {
exit_status = ret;
goto cleanup;
}
/* For each file pair */
for (f_item = opal_list_get_first( &request->file_sets);
f_item != opal_list_get_end( &request->file_sets);
f_item = opal_list_get_next( f_item) ) {
orte_filem_base_file_set_t * f_set = (orte_filem_base_file_set_t*)f_item;
/*
* Fix the remote_filename.
* If it is an absolute path, then assume it is valid for the remote server
* ow then we must construct the correct path.
*/
remote_file = strdup(f_set->remote_target);
if( ORTE_SUCCESS != (ret = orte_filem_rsh_query_remote_path(&remote_file, &p_set->source, &f_set->target_flag) ) ) {
exit_status = ret;
goto cleanup;
}
if(ORTE_FILEM_TYPE_UNKNOWN == f_set->target_flag) {
continue;
}
opal_argv_append(&argc, &remote_file_set, remote_file);
/*
* If we are removing a directory in the mix, then we
* need the recursive argument.
*/
if(NULL == dir_arg) {
if(ORTE_FILEM_TYPE_DIR == f_set->target_flag) {
dir_arg = strdup(" -rf ");
}
}
} /* All File Pairs */
if(NULL == dir_arg) {
dir_arg = strdup(" -f ");
}
remote_targets = opal_argv_join(remote_file_set, ' ');
asprintf(&command, "%s %s rm %s %s ",
mca_filem_rsh_component.remote_sh_command,
remote_machine,
dir_arg,
remote_targets);
OPAL_OUTPUT_VERBOSE((15, mca_filem_rsh_component.super.output_handle,
"filem:rsh:rm about to execute [%s]", command));
if( ORTE_SUCCESS != (ret = orte_filem_rsh_start_command(p_set,
NULL,
command,
request,
cur_index)) ) {
exit_status = ret;
goto cleanup;
}
/* A small bit of cleanup */
if( NULL != dir_arg) {
free(dir_arg);
dir_arg = NULL;
}
if( NULL != remote_targets) {
free(remote_targets);
remote_targets = NULL;
}
if( NULL != remote_file_set) {
opal_argv_free(remote_file_set);
remote_file_set = NULL;
}
if(NULL != remote_machine) {
free(remote_machine);
remote_machine = NULL;
}
++cur_index;
} /* Process set */
cleanup:
if( NULL != command )
free(command);
if( NULL != remote_machine)
free(remote_machine);
if( NULL != dir_arg)
free(dir_arg);
if( NULL != remote_targets)
free(remote_targets);
if( NULL != remote_file_set)
opal_argv_free(remote_file_set);
return exit_status;
}
/******************
* Local Functions
******************/
/******************************
* Work Pool functions
******************************/
static int orte_filem_rsh_start_command(orte_filem_base_process_set_t *proc_set,
orte_filem_base_file_set_t *file_set,
char * command,
orte_filem_base_request_t *request,
int index)
{
orte_filem_rsh_work_pool_item_t *wp_item = NULL;
int ret;
/* Construct a work pool item */
wp_item = OBJ_NEW(orte_filem_rsh_work_pool_item_t);
/* Copy the Process Set */
if( NULL != proc_set ) {
wp_item->proc_set.source.jobid = proc_set->source.jobid;
wp_item->proc_set.source.vpid = proc_set->source.vpid;
wp_item->proc_set.sink.jobid = proc_set->sink.jobid;
wp_item->proc_set.sink.vpid = proc_set->sink.vpid;
}
/* Copy the File Set */
if( NULL != file_set ) {
wp_item->file_set.local_target = strdup(file_set->local_target);
wp_item->file_set.remote_target = strdup(file_set->remote_target);
wp_item->file_set.target_flag = file_set->target_flag;
}
OBJ_RETAIN(request);
wp_item->command = strdup(command);
wp_item->request = request;
wp_item->index = index;
/*
* - put the request on the pending list
* - wait for the peer to tell us that it can receive
*/
opal_list_append(&work_pool_pending, &(wp_item->super));
/*
* Ask for permission to send this file so we do not overwhelm the peer
*/
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: start_command(): Ask permission to send from proc %s",
ORTE_NAME_PRINT(&(proc_set->source))));
if( ORTE_SUCCESS != (ret = orte_filem_rsh_permission_ask(&(proc_set->source), 1)) ) {
return ret;
}
return ORTE_SUCCESS;
}
/******************************
* Child process start and wait functions
******************************/
static int start_child(char * command,
orte_filem_base_request_t *request,
int index)
{
char **argv = NULL;
int status, ret;
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: start_child(): Starting the command [%s]",
command));
/* fork() -> done = false, active = true */
request->is_done[index] = false;
request->is_active[index] = true;
request->exit_status[index] = fork();
if( request->exit_status[index] == 0 ) { /* Child */
/* Redirect stdout to /dev/null */
freopen( "/dev/null", "w", stdout);
argv = opal_argv_split(command, ' ');
status = execvp(argv[0], argv);
opal_output(0, "filem:rsh:start_child Failed to exec child [%s] status = %d\n", command, status);
exit(ORTE_ERROR);
}
else if( request->exit_status[index] > 0 ) {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: start_child(): Started Child %d Running command [%s]",
request->exit_status[index], command));
/*
* Register a callback for when this process exits
*/
if( ORTE_SUCCESS != (ret = orte_wait_cb(request->exit_status[index], filem_rsh_waitpid_cb, NULL) ) ) {
opal_output(0, "filem:rsh: start_child(): Failed to register a waitpid callback for child [%d] executing the command [%s]\n",
request->exit_status[index], command);
return ret;
}
}
else {
return ORTE_ERROR;
}
return ORTE_SUCCESS;
}
static void filem_rsh_waitpid_cb(pid_t pid, int status, void* cbdata)
{
orte_filem_rsh_work_pool_item_t *wp_item = NULL;
orte_filem_base_request_t *request;
opal_list_item_t *item = NULL;
int index;
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: waitpid_cb(): Pid %d finished with status [%d].\n",
pid, status));
/*
* Find this pid in the active queue
*/
OPAL_THREAD_LOCK(&work_pool_lock);
for (item = opal_list_get_first( &work_pool_active);
item != opal_list_get_end( &work_pool_active);
item = opal_list_get_next( item) ) {
wp_item = (orte_filem_rsh_work_pool_item_t *)item;
request = wp_item->request;
index = wp_item->index;
if( request->is_done[index] == false &&
request->exit_status[index] == pid ) {
request->exit_status[index] = status;
/* waitpid() -> done = true, active = false */
request->is_done[index] = true;
request->is_active[index] = false;
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: waitpid_cb(): Marked pid %d as complete [status = %d].\n",
pid, status));
break;
}
}
/*
* Signal in case anyone is waiting for a child to finish.
*/
opal_condition_signal(&work_pool_cond);
OPAL_THREAD_UNLOCK(&work_pool_lock);
}
/******************************
* Path resolution functions
******************************/
/*
* This function is paired with the filem_base_process_get_remote_path_cmd() function on the remote machine
*/
static int orte_filem_rsh_query_remote_path(char **remote_ref, orte_process_name_t *peer, int *flag) {
int ret;
#if 0
/* An optimization if we are guarenteed that this remote files exists.
* Then the 'scp -r' option will work with both files and directories.
* JJH: For general correctness disable this piece of code.
*/
if( *remote_ref[0] == '/' ) {
*flag = ORTE_FILEM_TYPE_DIR;
return ORTE_SUCCESS;
}
#endif
/* Call the base function */
if( ORTE_SUCCESS != (ret = orte_filem_base_get_remote_path(remote_ref, peer, flag) ) ) {
return ret;
}
return ORTE_SUCCESS;
}
/******************************
* Permission functions
******************************/
static int orte_filem_rsh_permission_listener_init(orte_rml_buffer_callback_fn_t rml_cbfunc)
{
int ret;
if( ORTE_SUCCESS != (ret = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_FILEM_RSH,
ORTE_RML_PERSISTENT,
rml_cbfunc,
NULL)) ) {
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: listener_init: Failed to register the receive callback (%d)",
ret);
return ret;
}
return ORTE_SUCCESS;
}
static int orte_filem_rsh_permission_listener_cancel(void)
{
int ret;
if( ORTE_SUCCESS != (ret = orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_FILEM_RSH) ) ) {
#if 0
opal_output(mca_filem_rsh_component.super.output_handle,
"filem:rsh: listener_cancel: Failed to deregister the receive callback (%d)",
ret);
#endif
return ret;
}
return ORTE_SUCCESS;
}
static void orte_filem_rsh_permission_callback(int status,
orte_process_name_t* sender,
opal_buffer_t *buffer,
orte_rml_tag_t tag,
void* cbdata)
{
orte_filem_rsh_work_pool_item_t *wp_item = NULL;
opal_list_item_t *item = NULL;
int ret;
orte_std_cntr_t n;
int num_req, num_allowed = 0;
int perm_flag, i;
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(? ?): Peer %s ...",
ORTE_NAME_PRINT(sender)));
/*
* Receive the flag indicating if this is:
* - Asking for permission (ORTE_FILEM_RSH_ASK)
* - Allowing us to send (ORTE_FILEM_RSH_ALLOW)
*/
n = 1;
if (ORTE_SUCCESS != (ret = opal_dss.unpack(buffer, &perm_flag, &n, OPAL_INT))) {
goto cleanup;
}
/* Asking for permission to send */
if( ORTE_FILEM_RSH_ASK == perm_flag ) {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(ASK): Peer %s Asking permission to send [Used %d of %d]",
ORTE_NAME_PRINT(sender),
cur_num_incomming,
orte_filem_rsh_max_incomming));
/*
* Receive the requested amount
*/
n = 1;
if (ORTE_SUCCESS != (ret = opal_dss.unpack(buffer, &num_req, &n, OPAL_INT))) {
goto cleanup;
}
/*
* Determine how many we can allow
* if none then put a request on the waiting list
* ow tell the peer to start sending now.
* Send back number allowed to be started
*/
if( orte_filem_rsh_max_incomming < cur_num_incomming + 1) {
/* Add to the waiting list */
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(ASK): Add Peer %s request to waiting list",
ORTE_NAME_PRINT(sender)));
wp_item = OBJ_NEW(orte_filem_rsh_work_pool_item_t);
wp_item->proc_set.source.jobid = sender->jobid;
wp_item->proc_set.source.vpid = sender->vpid;
opal_list_append(&work_pool_waiting, &(wp_item->super));
}
/* Start the transfer immediately */
else {
num_allowed = 1;
cur_num_incomming += 1;
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(ASK): Respond to Peer %s with %d",
ORTE_NAME_PRINT(sender), num_allowed));
permission_send_num_allowed(sender, num_allowed);
}
}
/* Allowing us to start some number of sends */
else if( ORTE_FILEM_RSH_ALLOW == perm_flag ) {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(ALLOW): Peer %s Allowing me to send",
ORTE_NAME_PRINT(sender)));
/*
* Receive the allowed transmit amount
*/
n = 1;
if (ORTE_SUCCESS != (ret = opal_dss.unpack(buffer, &num_req, &n, OPAL_INT))) {
goto cleanup;
}
/*
* For each alloacted spot for transmit
* - Get a pending request directed at this peer
* - Start the pending request
*/
for(i = 0; i < num_req; ++i ) {
if( 0 >= opal_list_get_size(&work_pool_pending) ) {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(ALLOW): No more pending sends to peer %s...",
ORTE_NAME_PRINT(sender)));
break;
}
for (item = opal_list_get_first( &work_pool_pending);
item != opal_list_get_end( &work_pool_pending);
item = opal_list_get_next( item) ) {
wp_item = (orte_filem_rsh_work_pool_item_t *)item;
if(sender->jobid == wp_item->proc_set.source.jobid &&
sender->vpid == wp_item->proc_set.source.vpid ) {
opal_list_remove_item( &work_pool_pending, item);
break;
}
}
if( item == opal_list_get_end(&work_pool_pending) ) {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(ALLOW): Unable to find message on the pending list\n"));
}
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(ALLOW): Starting to send to peer %s... (# pending = %d)",
ORTE_NAME_PRINT(sender), (int)opal_list_get_size(&work_pool_pending)));
wp_item->active = true;
opal_list_append(&work_pool_active, &(wp_item->super));
if( ORTE_SUCCESS != (ret = start_child(wp_item->command,
wp_item->request,
wp_item->index)) ) {
goto cleanup;
}
}
}
/* Peer said they are done sending one or more files */
else if( ORTE_FILEM_RSH_DONE == perm_flag ) {
OPAL_OUTPUT_VERBOSE((10, mca_filem_rsh_component.super.output_handle,
"filem:rsh: permission_callback(DONE): Peer %s is done sending to me",
ORTE_NAME_PRINT(sender)));
/*
* Receive the number of open slots
*/
n = 1;
if (ORTE_SUCCESS != (ret = opal_dss.unpack(buffer, &num_req, &n, OPAL_INT))) {
goto cleanup;
}
cur_num_incomming -= num_req;
/*
* For each open slot, notify a waiting peer that it may send
*/
for(i = 0; i < num_req; ++i ) {
item = opal_list_get_first( &work_pool_waiting);
if( item != opal_list_get_end( &work_pool_waiting) ) {
wp_item = (orte_filem_rsh_work_pool_item_t *)item;
num_allowed = 1;
cur_num_incomming += 1;
opal_list_remove_item(&work_pool_waiting, item);
permission_send_num_allowed(&(wp_item->proc_set.source), num_allowed);
OBJ_RELEASE(wp_item);
}
}
}
cleanup:
return;
}
static int orte_filem_rsh_permission_ask(orte_process_name_t* source,
int num_sends)
{
int ret, exit_status = ORTE_SUCCESS;
opal_buffer_t loc_buffer;
int perm_flag = ORTE_FILEM_RSH_ASK;
OBJ_CONSTRUCT(&loc_buffer, opal_buffer_t);
if (ORTE_SUCCESS != (ret = opal_dss.pack(&loc_buffer, &perm_flag, 1, OPAL_INT))) {
exit_status = ret;
goto cleanup;
}
if (ORTE_SUCCESS != (ret = opal_dss.pack(&loc_buffer, &num_sends, 1, OPAL_INT))) {
exit_status = ret;
goto cleanup;
}
if (0 > (ret = orte_rml.send_buffer(source, &loc_buffer, ORTE_RML_TAG_FILEM_RSH, 0))) {
exit_status = ret;
goto cleanup;
}
cleanup:
OBJ_DESTRUCT(&loc_buffer);
return exit_status;
}
static int permission_send_done(orte_process_name_t* peer, int num_avail) {
int ret, exit_status = ORTE_SUCCESS;
opal_buffer_t loc_buffer;
int perm_flag = ORTE_FILEM_RSH_DONE;
OBJ_CONSTRUCT(&loc_buffer, opal_buffer_t);
if (ORTE_SUCCESS != (ret = opal_dss.pack(&loc_buffer, &perm_flag, 1, OPAL_INT))) {
exit_status = ret;
goto cleanup;
}
if (ORTE_SUCCESS != (ret = opal_dss.pack(&loc_buffer, &num_avail, 1, OPAL_INT))) {
exit_status = ret;
goto cleanup;
}
if (0 > (ret = orte_rml.send_buffer(peer, &loc_buffer, ORTE_RML_TAG_FILEM_RSH, 0))) {
exit_status = ret;
goto cleanup;
}
cleanup:
OBJ_DESTRUCT(&loc_buffer);
return exit_status;
}
static int permission_send_num_allowed(orte_process_name_t* peer, int num_allowed)
{
int ret, exit_status = ORTE_SUCCESS;
opal_buffer_t loc_buffer;
int perm_flag = ORTE_FILEM_RSH_ALLOW;
OBJ_CONSTRUCT(&loc_buffer, opal_buffer_t);
if (ORTE_SUCCESS != (ret = opal_dss.pack(&loc_buffer, &perm_flag, 1, OPAL_INT))) {
exit_status = ret;
goto cleanup;
}
if (ORTE_SUCCESS != (ret = opal_dss.pack(&loc_buffer, &num_allowed, 1, OPAL_INT))) {
exit_status = ret;
goto cleanup;
}
if (0 > (ret = orte_rml.send_buffer(peer, &loc_buffer, ORTE_RML_TAG_FILEM_RSH, 0))) {
exit_status = ret;
goto cleanup;
}
cleanup:
OBJ_DESTRUCT(&loc_buffer);
return exit_status;
}
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