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fncsbroker.cpp
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fncsbroker.cpp
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/*
* Copyright (c) 2013, <copyright holder> <email>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the <organization> nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY <copyright holder> <email> ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <copyright holder> <email> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
#include "config.h"
#include <algorithm>
#include <cassert>
#include <climits>
#include <csignal>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <map>
#include <numeric>
#include <set>
#include <string>
#include <vector>
#include <zmq.h>
#include "integrator.h"
#include "message.h"
#include "zmqhelper.h"
using namespace std;
using namespace sim_comm;
typedef map<string,unsigned long> ReduceMap;
typedef pair<string,unsigned long> ReducePair;
typedef map<string,unsigned long> AllGatherMap;
struct aggregateType{
uint64_t time;
uint64_t action;
};
struct TimeBool {
unsigned long time;
bool hadMessage;
};
typedef map<string,TimeBool> TimeBoolMap;
typedef pair<string,TimeBool> TimeBoolPair;
typedef map<string,aggregateType> AggregateReduceMap;
map<string,int> obj_to_ID;
vector<map<int,string> > logicalID_to_realID;
vector<ReduceMap> reduce_min_time;
vector<ReduceMap> reduce_min_time_sleep_state;
vector<TimeBoolMap> reduce_min_time_sleep_incoming;
vector<AggregateReduceMap> reduce_min_time_action;
vector<AllGatherMap> all_gather;
vector<ReduceMap> reduce_sent;
vector<ReduceMap> reduce_recv;
vector<unsigned long> reduce_sent_total;
vector<unsigned long> reduce_recv_total;
vector<ReduceMap> reduce_fail_time;
string newNetSimID;
set<string> newConnections;
vector<map<string,string> > reinitMap;
map<string,string> childIniMap;
set<int> newParents;
vector<set<string> > contexts;
vector<set<int> > parent_contexts;
vector<set<string> > finalized;
vector<set<string> > barrier;
vector<set<string> > succed;
vector<set<string> > asleep;
vector<set<string> > finished;
vector<bool> valid_contexts;
vector<bool> sleepingSim;
vector<string> netSimID;
vector<uint64_t> netSimObjCount;
void *zmq_ctx = NULL;
void *broker = NULL;
void *async_broker = NULL;
void *killer = NULL;
int world_size = 0;
vector<int> world_sizes;
vector<bool> child_init_complete;
struct ReduceMinPairLess
{
bool operator()(const ReducePair& left, const ReducePair& right) const
{
return left.second < right.second;
}
};
struct TimeBoolMapAccumulate
{
TimeBoolPair operator()(TimeBoolPair left, TimeBoolPair right)
{
TimeBoolPair result;
result.second.time = ::std::min(left.second.time,right.second.time);
result.second.hadMessage = left.second.hadMessage || right.second.hadMessage;
return result;
}
};
static int add_context();
static bool starts_with(const string &str, const string &prefix);
static void graceful_death(int exit_code);
static void hello_handler(const string &identity, const int &context, const string &control);
static void route_handler(const string &identity, const int &context, const string &control);
static void delay_handler(const string &identity, const int &context, const string &control);
static void reduce_min_time_handler(const string &identity, const int &context, const string &control);
static void reduce_min_time_sleep_handler(const string &identity, const int &context, const string &control);
static void reduce_min_time_action_handler(const string &identity, const int &context, const string &control);
static void reduce_send_recv_handler(const string &identity, const int &context, const string &control);
static void all_gather_handler(const string &identity,const int &context, const string &control);
static void register_handler(const string &identity, const int &context, const string &control);
static void finalize_handler(const string &identity, const int &context, const string &control);
static void barrier_handler(const string &identity, const int &context, const string &control);
static void succeed_handler(const string &identity, const int &context, const string &control);
static void sleep_handler(const string &identity, const int &context, const string &control);
static void child_failed_handler(const string &identity, const int &context, const string &control);
static void reduce_fail_time_handler(const string &identity, const int &context, const string &control);
static bool finished_handler(const string &identity, const int &context, const string &control);
static void barrier_checker(const int &context);
static void reduce_min_time_checker(const int &context);
static void reduce_min_time_action_checker(const int &context);
static void reduce_send_recv_checker(const int &context);
static void all_gather_checker(const int &context);
static void reduce_fail_time_checker(const int &context);
static void succeed_checker(const int &context);
static bool isValid(int context);
static void parent_reinit_handler(const string &identity, const int &context, const string &control);
static void parent_reinit_checker(const int &context);
static void child_init_handler(const string &identity, const int &context, const string &control);
static void child_init_checker(const int &parent_context);
static void graceful_death_handler(void *arg)
{
assert(NULL == arg);
graceful_death(EXIT_FAILURE);
}
int main(int argc, char **argv)
{
int retval;
const int ONE = 1;
#if DEBUG
# if DEBUG_TO_FILE
Debug::setEcho("broker");
# endif
#endif
if (1 >= argc) {
cerr << "missing world_size argument" << endl;
exit(EXIT_FAILURE);
}
else if (3 <= argc) {
cerr << "too many arguments" << endl;
exit(EXIT_FAILURE);
}
world_size = atoi(argv[1]);
if (world_size <= 1) {
cerr << "world size must be > 1" << endl;
exit(EXIT_FAILURE);
}
zmq_ctx = zmq_ctx_new();
if (NULL == zmq_ctx) {
perror("zmq_ctx_new");
graceful_death(EXIT_FAILURE);
}
/* create socket for receiving barrier/sync messages from simulations */
broker = zmq_socket(zmq_ctx, ZMQ_ROUTER);
if (NULL == broker) {
perror("zmq_socket(zmq_ctx, ZMQ_ROUTER)");
graceful_death(EXIT_FAILURE);
}
/* broker should not silently drop packets that can't be sent out */
retval = zmq_setsockopt(broker, ZMQ_ROUTER_MANDATORY, &ONE, sizeof(int));
if (-1 == retval) {
perror("zmq_setsockopt(broker, ZMQ_ROUTER_MANDATORY, &ONE, sizeof(int))");
graceful_death(EXIT_FAILURE);
}
/* bind broker to physical address */
retval = zmq_bind(broker, "tcp://*:5555");
if (-1 == retval) {
perror("zmq_bind(broker, \"tcp://*:5555\")");
graceful_death(EXIT_FAILURE);
}
/* create socket for receiving sim messages from simulations */
async_broker = zmq_socket(zmq_ctx, ZMQ_ROUTER);
if (NULL == async_broker) {
perror("zmq_socket(zmq_ctx, ZMQ_ROUTER)");
graceful_death(EXIT_FAILURE);
}
/* async_broker should not silently drop packets that can't be sent out */
retval = zmq_setsockopt(async_broker, ZMQ_ROUTER_MANDATORY, &ONE, sizeof(int));
if (-1 == retval) {
perror("zmq_setsockopt(async_broker, ZMQ_ROUTER_MANDATORY, &ONE, sizeof(int))");
graceful_death(EXIT_FAILURE);
}
/* bind async_broker to physical address */
retval = zmq_bind(async_broker, "tcp://*:5556");
if (-1 == retval) {
perror("zmq_bind(async_broker, \"tcp://*:5556\")");
graceful_death(EXIT_FAILURE);
}
/* create socket for sending kill message to simulations */
killer = zmq_socket(zmq_ctx, ZMQ_PUB);
if (NULL == killer) {
perror("zmq_socket(zmq_ctx, ZMQ_PUB)");
graceful_death(EXIT_FAILURE);
}
/* bind killer to physical address */
retval = zmq_bind(killer, "tcp://*:5557");
if (-1 == retval) {
perror("zmq_bind(killer, \"tcp://*:5557\")");
graceful_death(EXIT_FAILURE);
}
zmqx_register_handler(graceful_death_handler, 0, NULL);
zmqx_catch_signals();
while (1) {
string identity; // simulation identifier
int context; // which group of sims?
string control; // control field
zmq_pollitem_t items[] = {
{ broker, 0, ZMQ_POLLIN, 0 },
{ async_broker, 0, ZMQ_POLLIN, 0 },
};
zmqx_interrupt_check();
int rc = zmq_poll(items, 2, -1);
zmqx_interrupt_check();
if (items[0].revents & ZMQ_POLLIN) {
(void) zmqx_recv(broker, identity);
(void) zmqx_recv(broker, context);
(void) zmqx_recv(broker, control);
#if DEBUG
CERR << "broker recv - identity '" << identity
<< "' context '" << context
<< "' control '" << control
<< "'" << endl;
#endif
if (context < 0
|| (context >= contexts.size() && !contexts.empty())) {
cerr << "broker received invalid context" << endl;
graceful_death(EXIT_FAILURE);
}
else if ("HELLO" == control || "HELLO_NETSIM" == control) {
hello_handler(identity, context, control);
}
else if ("REDUCE_MIN_TIME" == control) {
reduce_min_time_handler(identity, context, control);
}
else if ("REDUCE_MIN_TIME_SLEEP" == control) {
reduce_min_time_sleep_handler(identity, context, control);
}
else if ("REDUCE_MIN_TIME_ACTION" ==control){
reduce_min_time_action_handler(identity,context,control);
}
else if ("REDUCE_FAIL_TIME" == control) {
reduce_fail_time_handler(identity, context, control);
}
else if ("REDUCE_SEND_RECV" == control) {
reduce_send_recv_handler(identity, context, control);
}
else if("ALL_GATHER_NEXT_TIME" == control){
all_gather_handler(identity, context, control);
}
else if ("REGISTER_OBJECT" == control) {
register_handler(identity, context, control);
}
else if ("FINALIZE_REGISTRATIONS" == control) {
finalize_handler(identity, context, control);
}
else if ("BARRIER" == control) {
barrier_handler(identity, context, control);
}
else if ("SLEEP" == control) {
sleep_handler(identity, context, control);
}
else if ("CHILD_FAILED" == control) {
child_failed_handler(identity, context, control);
}
else if ("DIE" == control) {
/* a simulation wants to terminate abrubtly */
graceful_death(EXIT_FAILURE);
}
else if ("FINISHED" == control) {
if (finished_handler(identity, context, control)) {
break;
}
}
else if ("CHILD_SUCCESS" == control) {
succeed_handler(identity,context,control);
}
else if ("PARENT_REINIT" == control){
parent_reinit_handler(identity,context,control);
}
else if ("CHILD_INIT" == control || "CHILD_INIT_NETSIM" == control){
child_init_handler(identity,context,control);
}
else {
cerr << "unrecognized control header '"
<< control << "'" << endl;
graceful_death(EXIT_FAILURE);
}
}
if (items[1].revents & ZMQ_POLLIN) {
(void) zmqx_recv(async_broker, identity);
(void) zmqx_recv(async_broker, context);
(void) zmqx_recv(async_broker, control);
#if DEBUG
CERR << "async_broker recv - identity '" << identity
<< "' context '" << context
<< "' control '" << control
<< "'" << endl;
#endif
if (context < 0
|| (context >= contexts.size() && !contexts.empty())) {
#if DEBUG
CERR << "async_broker received invalid context" << endl;
#endif
graceful_death(EXIT_FAILURE);
}
if ("IGNORE" == control){
}
else if ("ROUTE" == control) {
route_handler(identity, context, control);
}
else if ("DELAY" == control) {
delay_handler(identity, context, control);
}
else {
#if DEBUG
CERR << "unrecognized control header '"
<< control << "'" << endl;
#endif
graceful_death(EXIT_FAILURE);
}
}
}
graceful_death(EXIT_SUCCESS);
}
/**
* A child is trying to reconnect.
* The child blocks, until all childern connect.
*
*/
void child_init_handler(const string& identity, const int& context, const string& control)
{
#ifdef DEBUG
CERR << "Got child re-init " << identity << endl;
#endif
if(childIniMap.size() > world_size){
cerr << "Child inits greater than world size!" << endl;
graceful_death(0);
}
int parent;
(void) zmqx_recv(broker,parent);
newParents.insert(parent);
string oldId;
(void) zmqx_recv(broker,oldId);
if(control == "CHILD_INIT_NETSIM")
newNetSimID = identity;
if(childIniMap.count(oldId) > 0){
cerr << "This pair is already in reinit map:" << oldId << " " << identity << endl;
graceful_death(0);
}
#ifdef DEBUG
CERR << "New child pair parentId " << oldId << " newId " << identity << ", parent context " << parent << endl;
#endif
childIniMap.insert(pair<string,string>(oldId,identity));
child_init_checker(parent);
}
/**
* Child init checker, if all childern is connected we create new context and add
* object from the current conext to the new one.
*/
static void child_init_checker(const int &parent_context){
if(childIniMap.size() !=world_size) //not all parents started
return;
#ifdef DEBUG
CERR << "All childern have connected, starting context addition!" << endl;
#endif
//safety checks
assert(valid_contexts[parent_context]); //parent context should be valid, otherwise we are a parent!
assert(newConnections.size()==0); //the new connections set is only used in hello.
assert(newParents.size()==1); //we should have only one parent!
assert(!newNetSimID.empty()); //we should have a netsimid, netsim shoud have send a child_init_netsim
//add context.
int newContext=add_context();
//add to contexts!
map<string,string>::iterator it=childIniMap.begin();
for(;it!=childIniMap.end();it++){
contexts[newContext].insert(it->second);
}
logicalID_to_realID[newContext]=logicalID_to_realID[parent_context];
for(int i=0;i<logicalID_to_realID[newContext].size();i++){
map<string,string>::iterator it=childIniMap.find(logicalID_to_realID[newContext][i]);
if(it==childIniMap.end()){
cerr << "Cannot find parent id in logical id map" << endl;
graceful_death(EXIT_FAILURE);
}
logicalID_to_realID[newContext][i]=it->second;
}
set<string>::iterator it3=contexts[newContext].begin();
for(;it3!=contexts[newContext].end();++it3){
#ifdef DEBUG
CERR << "Sending new context to " << *it3 << endl;
#endif
(void) zmqx_sendmore(broker, *it3);
(void) zmqx_send(broker, newContext);
}
childIniMap.clear();
newConnections.clear();
newParents.clear();
newNetSimID.clear();
#ifdef DEBUG
CERR << "Child context initialized!" << endl;
#endif
child_init_complete[parent_context]=true;
parent_reinit_checker(parent_context);
}
/**
* A parent is trying to re_connect. We check if parent context is valid. if so we check
* if parent's child context is valid. The child might have died while the parent is
* trying to reconnect.
*/
static void parent_reinit_handler(const string& identity, const int& context, const string& control)
{
#ifdef DEBUG
CERR << "Got parent re-init " << identity << endl;
#endif
if(reinitMap[context].size() > world_size){
cerr << "Re-inits exceeded world_size!" << endl;
graceful_death(0);
}
string oldId;
(void) zmqx_recv(broker,oldId);
if(reinitMap[context].count(oldId) > 0){
cerr << "This pair is already in reinit map:" << oldId << " " << identity << endl;
graceful_death(0);
}
reinitMap[context].insert(pair<string,string>(oldId,identity));
parent_reinit_checker(context);
}
void parent_reinit_checker(const int& context)
{
if(!child_init_complete[context] || reinitMap[context].size() !=world_size) //not all parents started
return;
#ifdef DEBUG
CERR << "in context " << context << " all parents sent the re-init message " << child_init_complete[context] << " " << reinitMap[context].size()<< endl;
#endif
map<string,string>::iterator it=reinitMap[context].begin();
//before we do anything, check if context is valid!
if(!valid_contexts[context]){
#ifdef DEBUG
CERR << "context " << context << "is not valid" << endl;
#endif
for(;it!=reinitMap[context].end();++it){
(void) zmqx_sendmore(broker,it->second);
(void) zmqx_send(broker,"NOT_VALID");
}
child_init_complete[context]=false;
reinitMap[context].clear();
return;
}
#ifdef DEBUG
CERR << "context " << context << "is valid, entering context replace." << endl;
#endif
//first we need to replace the old conexts ids with the new context ids
contexts[context].clear();
for(;it!=reinitMap[context].end();++it){
contexts[context].insert(string(it->second));
}
string oldNetSimId=netSimID[context];
map<string,string>::iterator netSim=reinitMap[context].find(oldNetSimId);
if(netSim==reinitMap[context].end()){
cerr << "No netsim id in re-init map?" << endl;
graceful_death(0);
return;
}
//start replace operation
#ifdef DEBUG
CERR << "context " << context << ": starting replace operation." << endl;
#endif
netSimID[context]=netSim->second;
//we copy obj_to_ID so childern can use it in future
for(int i=0;i<logicalID_to_realID[context].size();i++){
map<string,string>::iterator it=reinitMap[context].find(logicalID_to_realID[context][i]);
if(it==reinitMap[context].end()){
cerr << "Cannot find old parent id in logical id map" << endl;
graceful_death(EXIT_FAILURE);
}
logicalID_to_realID[context][i]=it->second;
}
#ifdef DEBUG
CERR << "re-init complete" << endl;
#endif
it=reinitMap[context].begin();
for(;it!=reinitMap[context].end();++it){
#if DEBUG
CERR << "Sending vald to " << it->second << endl;
#endif
(void) zmqx_sendmore(broker,it->second);
(void) zmqx_send(broker,"VALID");
}
reinitMap[context].clear();
child_init_complete[context]=false;
}
static int add_context()
{
size_t size;
netSimID.push_back(newNetSimID);
netSimObjCount.push_back(0);
contexts.push_back(newConnections);
parent_contexts.push_back(newParents);
world_sizes.push_back(world_size);
valid_contexts.push_back(true);
child_init_complete.push_back(false);
size = contexts.size();
int contextID = int(size-1);
reduce_min_time.resize(size);
reduce_min_time_sleep_state.resize(size);
reduce_min_time_sleep_incoming.resize(size);
reduce_min_time_action.resize(size);
reduce_sent.resize(size);
reduce_recv.resize(size);
reduce_sent_total.resize(size);
reduce_recv_total.resize(size);
reduce_fail_time.resize(size);
all_gather.resize(size);
finalized.resize(size);
barrier.resize(size);
succed.resize(size);
asleep.resize(size);
finished.resize(size);
reinitMap.resize(size);
logicalID_to_realID.resize(size);
sleepingSim.resize(size);
//initially none of the simulators are sleeping
sleepingSim[contextID]=false;
/* initial reduce_min_time_sleep_state should be 0 for all sims */
for (set<string>::iterator it=contexts[contextID].begin();
it != contexts[contextID].end(); ++it) {
reduce_min_time_sleep_state[contextID][*it] = 0;
}
reduce_sent_total[contextID] = 0;
reduce_recv_total[contextID] = 0;
return contextID;
}
static bool starts_with(const string &str, const string &prefix)
{
return str.substr(0, prefix.size()) == prefix;
}
static void graceful_death(int exit_code)
{
int retval;
/* send term message to all sims */
if (killer) {
(void) zmqx_send(killer, "DIE");
}
/* clean up killer */
if (killer) {
retval = zmq_close(killer);
if (-1 == retval) {
perror("zmq_close(killer)");
exit_code = EXIT_FAILURE;
}
}
/* clean up async_broker */
if (async_broker) {
retval = zmq_close(async_broker);
if (-1 == retval) {
perror("zmq_close(async_broker)");
exit_code = EXIT_FAILURE;
}
}
/* clean up broker */
if (broker) {
retval = zmq_close(broker);
if (-1 == retval) {
perror("zmq_close(broker)");
exit_code = EXIT_FAILURE;
}
}
/* clean up context */
if (zmq_ctx) {
retval = zmq_ctx_destroy(zmq_ctx);
if (-1 == retval) {
perror("zmq_ctx_destroy");
exit_code = EXIT_FAILURE;
}
}
#if DEBUG && DEBUG_TO_FILE
Debug::closeEcho();
#endif
exit(exit_code);
}
/**
* a sim is notifying it wants to connect
* we wait until all sims connect before replying
*/
static void hello_handler(
const string &identity,
const int &context,
const string &control)
{
int parent;
(void) zmqx_recv(broker, parent);
newConnections.insert(identity);
newParents.insert(parent);
#if DEBUG
CERR << "hello handler identity '" << identity
<< "' parent '" << parent
<< "'" << endl;
#endif
if ("HELLO_NETSIM" == control) {
if (newNetSimID.empty()) {
newNetSimID = identity;
}
else {
cerr << "a net sim is already connected" << endl;
graceful_death(EXIT_FAILURE);
}
}
if (newConnections.size() > world_size) {
graceful_death(EXIT_FAILURE);
}
else if (newConnections.size() == world_size) {
int contextID = add_context();
for (set<string>::iterator it=newConnections.begin();
it != newConnections.end(); ++it) {
(void) zmqx_sendmore(broker, *it);
(void) zmqx_send(broker, contextID);
}
/* sanity check -- all children should have same parent context ID */
assert(newParents.size() == 1);
set<int>::iterator it=newParents.begin();
if(*it==-1){ //initial registration, we build the logicalID_to_realID map.
int count=0;
for (set<string>::iterator it2=newConnections.begin();
it2 != newConnections.end(); ++it2) {
string temp=*it2;
logicalID_to_realID[context].insert(pair<int,string>(count++,temp));
}
}
/* prep for next group of connections */
newConnections.clear();
newParents.clear();
newNetSimID.clear();
}
}
/**
* net sim finished routing message;
* needs to route payload to dest sim
*/
static void route_handler(
const string &identity,
const int &context,
const string &control)
{
uint8_t *envelope;
uint32_t envelopeSize;
uint8_t *data;
uint32_t dataSize;
Message *message;
envelopeSize = zmqx_recv(async_broker, envelope, 256);
message = new Message(envelope, envelopeSize);
dataSize = message->getSize();
if (dataSize > 0) {
data = new uint8_t[dataSize];
(void) zmqx_recv(async_broker, data, dataSize);
message->setData(data, dataSize);
}
if (0 == obj_to_ID.count(message->getTo())) {
cerr << "object '" << message->getTo()
<< "' not registered" << endl;
graceful_death(EXIT_FAILURE);
}
int logical_object_owner = obj_to_ID[message->getTo()];
map<int,string>::iterator it=logicalID_to_realID[context].find(logical_object_owner);
if(it == logicalID_to_realID[context].end()){
cerr << "cannot locate realid of object" <<endl;
graceful_death(EXIT_FAILURE);
}
string object_owner=it->second;
(void) zmqx_sendmore(async_broker, object_owner);
(void) zmqx_sendmore(async_broker, "ROUTE");
if (dataSize > 0) {
(void) zmqx_sendmore(async_broker, envelope, envelopeSize);
(void) zmqx_send (async_broker, data, dataSize);
}
else {
(void) zmqx_send (async_broker, envelope, envelopeSize);
}
delete message;
delete [] envelope;
if (dataSize > 0) {
delete [] data;
}
}
/** a sim needs to route message through net sim */
static void delay_handler(
const string &identity,
const int &context,
const string &control)
{
uint8_t *envelope;
uint32_t envelopeSize;
uint8_t *data;
uint32_t dataSize;
Message *message;
envelopeSize = zmqx_recv(async_broker, envelope, 256);
#if DEBUG
CERR << "envelopeSize=" << envelopeSize << endl;
#endif
message = new Message(envelope, envelopeSize);
#if DEBUG
CERR << "async_broker - recv message: " << *message << endl;
#endif
dataSize = message->getSize();
if (dataSize > 0) {
dataSize = zmqx_recv(async_broker, data, dataSize);
message->setData(data, dataSize);
}
(void) zmqx_sendmore(async_broker, netSimID[context]);
(void) zmqx_sendmore(async_broker, "DELAY");
if (dataSize > 0) {
(void) zmqx_sendmore(async_broker, envelope, envelopeSize);
(void) zmqx_send (async_broker, data, dataSize);
}
else {
(void) zmqx_send (async_broker, envelope, envelopeSize);
}
delete message;
delete [] envelope;
if (dataSize > 0) {
delete [] data;
}
}
static bool isValid(int context){
if(valid_contexts.size()>0 && !valid_contexts[context]){
#if DEBUG
CERR << "broker received a message form an invalid context " << context << endl;
#endif
return false;
}
return true;
}
static void reduce_min_time_action_handler( const string &identity,
const int &context,
const string &control)
{
if (1 == reduce_min_time_action[context].count(identity)) {
cerr << "sim with ID '" << identity
<< "' duplicate REDUCE_MIN_TIME_ACTION" << endl;
graceful_death(EXIT_FAILURE);
}
unsigned long time,action;
(void) zmqx_recv(broker, time);
(void) zmqx_recv(broker, action);
if(!isValid(context))
return;
reduce_min_time_action[context][identity].action=action;
reduce_min_time_action[context][identity].time=time;
reduce_min_time_action_checker(context);
}
static void reduce_min_time_action_checker(const int &context){
if (reduce_min_time_action[context].size() > world_sizes[context]) {
cerr << "reduce_min_time_action_handler size > world size" << endl;
graceful_death(EXIT_FAILURE);
}
else if (reduce_min_time_action[context].size() == world_sizes[context]) {
aggregateType mins;
mins.action=Infinity;
mins.time=Infinity;
for(AggregateReduceMap::iterator it=reduce_min_time_action[context].begin();
it!=reduce_min_time_action[context].end();
++it){
if(mins.action>it->second.action){
mins.action=it->second.action;
}
if(mins.time>it->second.time){
mins.time=it->second.time;
}
}
/* send result to all sims */
for (set<string>::iterator it=contexts[context].begin();
it != contexts[context].end(); ++it) {
(void) zmqx_sendmore(broker, *it);
(void) zmqx_sendmore(broker, mins.time);
(void) zmqx_send(broker, mins.action);
}
/* clear the map in preparation for next round */
reduce_min_time_action[context].clear();
}
}
static void reduce_min_time_handler(
const string &identity,
const int &context,
const string &control)
{
unsigned long time;
if (1 == reduce_min_time[context].count(identity)) {
cerr << "sim with ID '" << identity
<< "' duplicate REDUCE_MIN_TIME" << endl;
graceful_death(EXIT_FAILURE);
}
(void) zmqx_recv(broker, time);
//check if context is valid
if(!isValid(context))
return;
reduce_min_time[context][identity] = time;
reduce_min_time_checker(context);
}
static void reduce_min_time_checker(
const int &context)
{
if (reduce_min_time[context].size() > world_sizes[context]) {
cerr << "reduce_min_time size > world size" << endl;
graceful_death(EXIT_FAILURE);
}
else if (reduce_min_time[context].size() == world_sizes[context]) {
ReducePair min = *min_element(reduce_min_time[context].begin(),
reduce_min_time[context].end(), ReduceMinPairLess());
/* send result to all sims */
for (ReduceMap::const_iterator it=reduce_min_time[context].begin();
it != reduce_min_time[context].end(); ++it) {
(void) zmqx_sendmore(broker, it->first);
(void) zmqx_send(broker, min.second);
}
/* clear the map in preparation for next round */
reduce_min_time[context].clear();
}
}
static void reduce_min_time_sleep_handler(
const string &identity,
const int &context,
const string &control)
{
unsigned long time;
bool hadMessage;
if (1 == reduce_min_time_sleep_incoming[context].count(identity)) {
cerr << "sim with ID '" << identity
<< "' duplicate REDUCE_MIN_TIME_SLEEP" << endl;
graceful_death(EXIT_FAILURE);
}
(void) zmqx_recv(broker, time);
(void) zmqx_recv(broker, hadMessage);
//check if context is valid
if(!isValid(context))
return;
reduce_min_time_sleep_incoming[context][identity].time = time;
reduce_min_time_sleep_incoming[context][identity].hadMessage = hadMessage;
if (reduce_min_time_sleep_incoming[context].size() > world_sizes[context]) {
cerr << "reduce_min_time_sleep size > world size" << endl;
graceful_death(EXIT_FAILURE);
}
else if (reduce_min_time_sleep_incoming[context].size() == world_sizes[context]) {
/* add in any missing (sleeping) contexts into the incoming message state */
for (ReduceMap::iterator it=reduce_min_time_sleep_state[context].begin();
it!=reduce_min_time_sleep_state[context].end(); ++it) {
if (0 == reduce_min_time_sleep_incoming[context].count(it->first)) {
TimeBool tb;
tb.time = it->second;
tb.hadMessage = false;
reduce_min_time_sleep_incoming[context].insert(
make_pair(it->first, tb));
}
}
/* local reduction of incoming TimeBool values */
TimeBoolPair initial_timebool = *reduce_min_time_sleep_incoming[context].begin();
TimeBoolPair timebool_min = ::std::accumulate(
reduce_min_time_sleep_incoming[context].begin(),
reduce_min_time_sleep_incoming[context].end(),
initial_timebool, TimeBoolMapAccumulate());
if (timebool_min.second.hadMessage && sleepingSim[context]) {
/* send prev result to all sims (wake all sims up) */
ReducePair time_min = *min_element(
reduce_min_time_sleep_state[context].begin(),
reduce_min_time_sleep_state[context].end(),