#include "xbt/asserts.h"
#include "mc/modelchecker.h"
#include "mc/mc.h"
+#include "xbt/xbt_os_time.h"
+
XBT_LOG_NEW_DEFAULT_CATEGORY(msg_chord,
"Messages specific for this msg example");
static int periodic_check_predecessor_delay = 120;
static int periodic_lookup_delay = 10;
+extern long int smx_total_comms;
+
/**
* Finger element.
*/
char pred_mailbox[MAILBOX_NAME_SIZE]; // predecessor's mailbox name
int next_finger_to_fix; // index of the next finger to fix in fix_fingers()
msg_comm_t comm_receive; // current communication to receive
- xbt_dynar_t comms; // current communications being sent
double last_change_date; // last time I changed a finger or my predecessor
} s_node_t, *node_t;
static int normalize(int id);
static int is_in_interval(int id, int start, int end);
static void get_mailbox(int host_id, char* mailbox);
-static void task_data_destroy(task_data_t task_data);
+static void task_free(void* task);
static void print_finger_table(node_t node);
static void set_finger(node_t node, int finger_index, int id);
static void set_predecessor(node_t node, int predecessor_id);
pow = pow << 1;
}
nb_keys = pow;
- DEBUG1("Sets nb_keys to %d", nb_keys);
+ XBT_DEBUG("Sets nb_keys to %d", nb_keys);
}
/**
}
/**
- * \brief Frees the memory used by some task data.
- * \param task_data the task data to destroy
+ * \brief Frees the memory used by a task.
+ * \param task the MSG task to destroy
*/
-static void task_data_destroy(task_data_t task_data)
+static void task_free(void* task)
{
- xbt_free(task_data);
+ // TODO add a parameter data_free_function to MSG_task_create?
+ xbt_free(MSG_task_get_data(task));
+ MSG_task_destroy(task);
}
/**
{
if (XBT_LOG_ISENABLED(msg_chord, xbt_log_priority_verbose)) {
int i;
- VERB0("My finger table:");
- VERB0("Start | Succ ");
+ XBT_VERB("My finger table:");
+ XBT_VERB("Start | Succ ");
for (i = 0; i < nb_bits; i++) {
- VERB2(" %3d | %3d ", (node->id + powers2[i]) % nb_keys, node->fingers[i].id);
+ XBT_VERB(" %3d | %3d ", (node->id + powers2[i]) % nb_keys, node->fingers[i].id);
}
- VERB1("Predecessor: %d", node->pred_id);
+ XBT_VERB("Predecessor: %d", node->pred_id);
}
}
node->fingers[finger_index].id = id;
get_mailbox(id, node->fingers[finger_index].mailbox);
node->last_change_date = MSG_get_clock();
- DEBUG2("My new finger #%d is %d", finger_index, id);
+ XBT_DEBUG("My new finger #%d is %d", finger_index, id);
}
}
}
node->last_change_date = MSG_get_clock();
- DEBUG1("My new predecessor is %d", predecessor_id);
+ XBT_DEBUG("My new predecessor is %d", predecessor_id);
}
}
{
/* Reduce the run size for the MC */
if(MC_IS_ENABLED){
- periodic_stabilize_delay = 3;
- periodic_fix_fingers_delay = 3;
- periodic_check_predecessor_delay = 3;
+ periodic_stabilize_delay = 8;
+ periodic_fix_fingers_delay = 8;
+ periodic_check_predecessor_delay = 8;
}
double init_time = MSG_get_clock();
m_task_t task_received = NULL;
- msg_comm_t comm_send = NULL;
int i;
- int index;
int join_success = 0;
double deadline;
double next_stabilize_date = init_time + periodic_stabilize_delay;
node.id = atoi(argv[1]);
get_mailbox(node.id, node.mailbox);
node.next_finger_to_fix = 0;
- node.comms = xbt_dynar_new(sizeof(msg_comm_t), NULL);
node.fingers = xbt_new0(s_finger_t, nb_bits);
node.last_change_date = init_time;
/*
// sleep before starting
- DEBUG1("Let's sleep during %f", sleep_time);
+ XBT_DEBUG("Let's sleep during %f", sleep_time);
MSG_process_sleep(sleep_time);
*/
- DEBUG0("Hey! Let's join the system.");
+ XBT_DEBUG("Hey! Let's join the system.");
join_success = join(&node, known_id);
}
}
else {
// nothing to do: sleep for a while
- MSG_process_sleep(3);
+ MSG_process_sleep(5);
}
}
else {
MSG_error_t status = MSG_comm_get_status(node.comm_receive);
if (status != MSG_OK) {
- DEBUG0("Failed to receive a task. Nevermind.");
+ XBT_DEBUG("Failed to receive a task. Nevermind.");
node.comm_receive = NULL;
}
else {
}
// see if some communications are finished
+ /*
while ((index = MSG_comm_testany(node.comms)) != -1) {
comm_send = xbt_dynar_get_as(node.comms, index, msg_comm_t);
MSG_error_t status = MSG_comm_get_status(comm_send);
xbt_dynar_remove_at(node.comms, index, &comm_send);
- DEBUG3("Communication %p is finished with status %d, dynar size is now %lu",
+ XBT_DEBUG("Communication %p is finished with status %d, dynar size is now %lu",
comm_send, status, xbt_dynar_length(node.comms));
m_task_t task = MSG_comm_get_task(comm_send);
MSG_comm_destroy(comm_send);
MSG_task_destroy(task);
}
}
+ */
}
// clean unfinished comms sent
}
// stop the simulation
- xbt_dynar_free(&node.comms);
xbt_free(node.fingers);
+ XBT_INFO("Messages created: %lu", smx_total_comms);
return 0;
}
*/
static void handle_task(node_t node, m_task_t task) {
- DEBUG1("Handling task %p", task);
- msg_comm_t comm = NULL;
+ XBT_DEBUG("Handling task %p", task);
char mailbox[MAILBOX_NAME_SIZE];
task_data_t task_data = (task_data_t) MSG_task_get_data(task);
e_task_type_t type = task_data->type;
switch (type) {
case TASK_FIND_SUCCESSOR:
- DEBUG2("Receiving a 'Find Successor' request from %s for id %d",
+ XBT_DEBUG("Receiving a 'Find Successor' request from %s for id %d",
task_data->issuer_host_name, task_data->request_id);
// is my successor the successor?
if (is_in_interval(task_data->request_id, node->id + 1, node->fingers[0].id)) {
task_data->type = TASK_FIND_SUCCESSOR_ANSWER;
task_data->answer_id = node->fingers[0].id;
- DEBUG4("Sending back a 'Find Successor Answer' to %s (mailbox %s): the successor of %d is %d",
+ XBT_DEBUG("Sending back a 'Find Successor Answer' to %s (mailbox %s): the successor of %d is %d",
task_data->issuer_host_name,
task_data->answer_to,
task_data->request_id, task_data->answer_id);
- comm = MSG_task_isend(task, task_data->answer_to);
- xbt_dynar_push(node->comms, &comm);
+ MSG_task_dsend(task, task_data->answer_to, task_free);
}
else {
// otherwise, forward the request to the closest preceding finger in my table
int closest = closest_preceding_node(node, task_data->request_id);
- DEBUG2("Forwarding the 'Find Successor' request for id %d to my closest preceding finger %d",
+ XBT_DEBUG("Forwarding the 'Find Successor' request for id %d to my closest preceding finger %d",
task_data->request_id, closest);
get_mailbox(closest, mailbox);
- comm = MSG_task_isend(task, mailbox);
- xbt_dynar_push(node->comms, &comm);
+ MSG_task_dsend(task, mailbox, task_free);
}
break;
case TASK_GET_PREDECESSOR:
- DEBUG1("Receiving a 'Get Predecessor' request from %s", task_data->issuer_host_name);
+ XBT_DEBUG("Receiving a 'Get Predecessor' request from %s", task_data->issuer_host_name);
task_data->type = TASK_GET_PREDECESSOR_ANSWER;
task_data->answer_id = node->pred_id;
- DEBUG3("Sending back a 'Get Predecessor Answer' to %s via mailbox '%s': my predecessor is %d",
+ XBT_DEBUG("Sending back a 'Get Predecessor Answer' to %s via mailbox '%s': my predecessor is %d",
task_data->issuer_host_name,
task_data->answer_to, task_data->answer_id);
- comm = MSG_task_isend(task, task_data->answer_to);
- xbt_dynar_push(node->comms, &comm);
+ MSG_task_dsend(task, task_data->answer_to, task_free);
break;
case TASK_NOTIFY:
// someone is telling me that he may be my new predecessor
- DEBUG1("Receiving a 'Notify' request from %s", task_data->issuer_host_name);
+ XBT_DEBUG("Receiving a 'Notify' request from %s", task_data->issuer_host_name);
notify(node, task_data->request_id);
- task_data_destroy(task_data);
- MSG_task_destroy(task);
+ task_free(task);
break;
case TASK_PREDECESSOR_LEAVING:
// my predecessor is about to quit
- DEBUG1("Receiving a 'Predecessor Leaving' message from %s", task_data->issuer_host_name);
+ XBT_DEBUG("Receiving a 'Predecessor Leaving' message from %s", task_data->issuer_host_name);
// modify my predecessor
set_predecessor(node, task_data->request_id);
- task_data_destroy(task_data);
- MSG_task_destroy(task);
+ task_free(task);
/*TODO :
>> notify my new predecessor
>> send a notify_predecessors !!
case TASK_SUCCESSOR_LEAVING:
// my successor is about to quit
- DEBUG1("Receiving a 'Successor Leaving' message from %s", task_data->issuer_host_name);
+ XBT_DEBUG("Receiving a 'Successor Leaving' message from %s", task_data->issuer_host_name);
// modify my successor FIXME : this should be implicit ?
set_finger(node, 0, task_data->request_id);
- task_data_destroy(task_data);
- MSG_task_destroy(task);
+ task_free(task);
/* TODO
>> notify my new successor
>> update my table & predecessors table */
case TASK_FIND_SUCCESSOR_ANSWER:
case TASK_GET_PREDECESSOR_ANSWER:
- DEBUG2("Ignoring unexpected task of type %d (%p)", type, task);
- task_data_destroy(task_data);
- MSG_task_destroy(task);
+ XBT_DEBUG("Ignoring unexpected task of type %d (%p)", type, task);
+ task_free(task);
break;
}
}
*/
static void create(node_t node)
{
- DEBUG0("Create a new Chord ring...");
+ XBT_DEBUG("Create a new Chord ring...");
set_predecessor(node, -1); // -1 means that I have no predecessor
print_finger_table(node);
}
*/
static int join(node_t node, int known_id)
{
- INFO2("Joining the ring with id %d, knowing node %d", node->id, known_id);
+ XBT_INFO("Joining the ring with id %d, knowing node %d", node->id, known_id);
set_predecessor(node, -1); // no predecessor (yet)
+ /*
+ int i;
+ for (i = 0; i < nb_bits; i++) {
+ set_finger(node, i, known_id);
+ }
+ */
+
int successor_id = remote_find_successor(node, known_id, node->id);
if (successor_id == -1) {
- INFO0("Cannot join the ring.");
+ XBT_INFO("Cannot join the ring.");
}
else {
set_finger(node, 0, successor_id);
*/
static void leave(node_t node)
{
- DEBUG0("Well Guys! I Think it's time for me to quit ;)");
+ XBT_DEBUG("Well Guys! I Think it's time for me to quit ;)");
quit_notify(node, 1); // notify to my successor ( >>> 1 );
quit_notify(node, -1); // notify my predecessor ( >>> -1);
// TODO ...
const char* to_mailbox = NULL;
if (to == 1) { // notify my successor
to_mailbox = node->fingers[0].mailbox;
- INFO2("Telling my Successor %d about my departure via mailbox %s",
+ XBT_INFO("Telling my Successor %d about my departure via mailbox %s",
node->fingers[0].id, to_mailbox);
req_data->type = TASK_PREDECESSOR_LEAVING;
}
}
to_mailbox = node->pred_mailbox;
- INFO2("Telling my Predecessor %d about my departure via mailbox %s",
+ XBT_INFO("Telling my Predecessor %d about my departure via mailbox %s",
node->pred_id, to_mailbox);
req_data->type = TASK_SUCCESSOR_LEAVING;
}
// send a "Find Successor" request to ask_to_id
m_task_t task_sent = MSG_task_create(NULL, COMP_SIZE, COMM_SIZE, req_data);
- DEBUG3("Sending a 'Find Successor' request (task %p) to %d for id %d", task_sent, ask_to, id);
+ XBT_DEBUG("Sending a 'Find Successor' request (task %p) to %d for id %d", task_sent, ask_to, id);
MSG_error_t res = MSG_task_send_with_timeout(task_sent, mailbox, timeout);
if (res != MSG_OK) {
- DEBUG3("Failed to send the 'Find Successor' request (task %p) to %d for id %d",
+ XBT_DEBUG("Failed to send the 'Find Successor' request (task %p) to %d for id %d",
task_sent, ask_to, id);
- MSG_task_destroy(task_sent);
- task_data_destroy(req_data);
+ task_free(task_sent);
}
else {
// receive the answer
- DEBUG3("Sent a 'Find Successor' request (task %p) to %d for key %d, waiting for the answer",
+ XBT_DEBUG("Sent a 'Find Successor' request (task %p) to %d for key %d, waiting for the answer",
task_sent, ask_to, id);
do {
res = MSG_comm_wait(node->comm_receive, timeout);
if (res != MSG_OK) {
- DEBUG2("Failed to receive the answer to my 'Find Successor' request (task %p): %d",
+ XBT_DEBUG("Failed to receive the answer to my 'Find Successor' request (task %p): %d",
task_sent, res);
stop = 1;
MSG_comm_destroy(node->comm_receive);
}
else {
m_task_t task_received = MSG_comm_get_task(node->comm_receive);
- DEBUG1("Received a task (%p)", task_received);
+ XBT_DEBUG("Received a task (%p)", task_received);
task_data_t ans_data = MSG_task_get_data(task_received);
if (MC_IS_ENABLED) {
}
else {
// this is our answer
- DEBUG4("Received the answer to my 'Find Successor' request for id %d (task %p): the successor of key %d is %d",
+ XBT_DEBUG("Received the answer to my 'Find Successor' request for id %d (task %p): the successor of key %d is %d",
ans_data->request_id, task_received, id, ans_data->answer_id);
successor = ans_data->answer_id;
stop = 1;
MSG_comm_destroy(node->comm_receive);
node->comm_receive = NULL;
- MSG_task_destroy(task_received);
- task_data_destroy(req_data);
+ task_free(task_received);
}
}
} while (!stop);
req_data->issuer_host_name = MSG_host_get_name(MSG_host_self());
// send a "Get Predecessor" request to ask_to_id
- DEBUG1("Sending a 'Get Predecessor' request to %d", ask_to);
+ XBT_DEBUG("Sending a 'Get Predecessor' request to %d", ask_to);
m_task_t task_sent = MSG_task_create(NULL, COMP_SIZE, COMM_SIZE, req_data);
MSG_error_t res = MSG_task_send_with_timeout(task_sent, mailbox, timeout);
if (res != MSG_OK) {
- DEBUG2("Failed to send the 'Get Predecessor' request (task %p) to %d",
+ XBT_DEBUG("Failed to send the 'Get Predecessor' request (task %p) to %d",
task_sent, ask_to);
- MSG_task_destroy(task_sent);
- task_data_destroy(req_data);
+ task_free(task_sent);
}
else {
// receive the answer
- DEBUG3("Sent 'Get Predecessor' request (task %p) to %d, waiting for the answer on my mailbox '%s'",
+ XBT_DEBUG("Sent 'Get Predecessor' request (task %p) to %d, waiting for the answer on my mailbox '%s'",
task_sent, ask_to, req_data->answer_to);
do {
res = MSG_comm_wait(node->comm_receive, timeout);
if (res != MSG_OK) {
- DEBUG2("Failed to receive the answer to my 'Get Predecessor' request (task %p): %d",
+ XBT_DEBUG("Failed to receive the answer to my 'Get Predecessor' request (task %p): %d",
task_sent, res);
stop = 1;
MSG_comm_destroy(node->comm_receive);
handle_task(node, task_received);
}
else {
- DEBUG3("Received the answer to my 'Get Predecessor' request (task %p): the predecessor of node %d is %d",
+ XBT_DEBUG("Received the answer to my 'Get Predecessor' request (task %p): the predecessor of node %d is %d",
task_received, ask_to, ans_data->answer_id);
predecessor_id = ans_data->answer_id;
stop = 1;
MSG_comm_destroy(node->comm_receive);
node->comm_receive = NULL;
- MSG_task_destroy(task_received);
- task_data_destroy(req_data);
+ task_free(task_received);
}
}
} while (!stop);
*/
static void stabilize(node_t node)
{
- DEBUG0("Stabilizing node");
+ XBT_DEBUG("Stabilizing node");
// get the predecessor of my immediate successor
int candidate_id;
print_finger_table(node);
}
else {
- DEBUG1("I don't have to change my predecessor to %d", predecessor_candidate_id);
+ XBT_DEBUG("I don't have to change my predecessor to %d", predecessor_candidate_id);
}
}
// send a "Notify" request to notify_id
m_task_t task = MSG_task_create(NULL, COMP_SIZE, COMM_SIZE, req_data);
- DEBUG2("Sending a 'Notify' request (task %p) to %d", task, notify_id);
+ XBT_DEBUG("Sending a 'Notify' request (task %p) to %d", task, notify_id);
char mailbox[MAILBOX_NAME_SIZE];
get_mailbox(notify_id, mailbox);
- msg_comm_t comm = MSG_task_isend(task, mailbox);
- xbt_dynar_push(node->comms, &comm);
+ MSG_task_dsend(task, mailbox, task_free);
}
/**
*/
static void fix_fingers(node_t node) {
- DEBUG0("Fixing fingers");
+ XBT_DEBUG("Fixing fingers");
int i = node->next_finger_to_fix;
int id = find_successor(node, node->id + powers2[i]);
if (id != -1) {
*/
static void check_predecessor(node_t node)
{
- DEBUG0("Checking whether my predecessor is alive");
+ XBT_DEBUG("Checking whether my predecessor is alive");
// TODO
}
static void random_lookup(node_t node)
{
int id = 1337; // TODO pick a pseudorandom id
- DEBUG1("Making a lookup request for id %d", id);
+ XBT_DEBUG("Making a lookup request for id %d", id);
find_successor(node, id);
}
*/
int main(int argc, char *argv[])
{
+ xbt_os_timer_t timer = xbt_os_timer_new();
+
if (argc < 3) {
printf("Usage: %s [-nb_bits=n] [-timeout=t] platform_file deployment_file\n", argv[0]);
printf("example: %s ../msg_platform.xml chord.xml\n", argv[0]);
int length = strlen("-nb_bits=");
if (!strncmp(options[0], "-nb_bits=", length) && strlen(options[0]) > length) {
nb_bits = atoi(options[0] + length);
- DEBUG1("Set nb_bits to %d", nb_bits);
+ XBT_DEBUG("Set nb_bits to %d", nb_bits);
}
else {
length = strlen("-timeout=");
if (!strncmp(options[0], "-timeout=", length) && strlen(options[0]) > length) {
timeout = atoi(options[0] + length);
- DEBUG1("Set timeout to %d", timeout);
+ XBT_DEBUG("Set timeout to %d", timeout);
}
else {
- xbt_assert1(0, "Invalid chord option '%s'", options[0]);
+ xbt_die("Invalid chord option '%s'", options[0]);
}
}
options++;
MSG_function_register("node", node);
MSG_launch_application(application_file);
+ xbt_os_timer_start(timer);
MSG_error_t res = MSG_main();
- INFO1("Simulation time: %g", MSG_get_clock());
+ xbt_os_timer_stop(timer);
+ XBT_CRITICAL("Simulation time %lf", xbt_os_timer_elapsed(timer));
+ XBT_INFO("Simulated time: %g", MSG_get_clock());
MSG_clean();
