/** Sender function */
int sender(int argc, char *argv[])
{
long number_of_tasks = atol(argv[1]);
double task_comp_size = atof(argv[2]);
double task_comm_size = atof(argv[3]);
long receivers_count = atol(argv[4]);
double sleep_start_time = atof(argv[5]);
double sleep_test_time = atof(argv[6]);
XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time,
sleep_test_time);
msg_comm_t comm = NULL;
int i;
m_task_t task = NULL;
MSG_process_sleep(sleep_start_time);
for (i = 0; i < number_of_tasks; i++) {
char mailbox[256];
char sprintf_buffer[256];
sprintf(mailbox, "receiver-%ld", i % receivers_count);
sprintf(sprintf_buffer, "Task_%d", i);
task =
MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size,
NULL);
comm = MSG_task_isend(task, mailbox);
XBT_INFO("Send to receiver-%ld Task_%d", i % receivers_count, i);
if (sleep_test_time == 0) {
MSG_comm_wait(comm, -1);
} else {
while (MSG_comm_test(comm) == 0) {
MSG_process_sleep(sleep_test_time);
};
MSG_comm_destroy(comm);
}
}
for (i = 0; i < receivers_count; i++) {
char mailbox[80];
sprintf(mailbox, "receiver-%ld", i % receivers_count);
task = MSG_task_create("finalize", 0, 0, 0);
comm = MSG_task_isend(task, mailbox);
XBT_INFO("Send to receiver-%ld finalize", i % receivers_count);
if (sleep_test_time == 0) {
MSG_comm_wait(comm, -1);
} else {
while (MSG_comm_test(comm) == 0) {
MSG_process_sleep(sleep_test_time);
};
MSG_comm_destroy(comm);
}
}
XBT_INFO("Goodbye now!");
return 0;
} /* end_of_sender */
/* Sender process expects 6 arguments: */
static int sender(int argc, char *argv[])
{
long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s"); /* - number of tasks */
double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s"); /* - computational cost */
double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s"); /* - communication cost */
long receivers_count = xbt_str_parse_int(argv[4], "Invalid amount of receivers: %s"); /* - number of receivers */
double sleep_start_time = xbt_str_parse_double(argv[5], "Invalid sleep start time: %s"); /* - start time */
double sleep_test_time = xbt_str_parse_double(argv[6], "Invalid test time: %s"); /* - test time */
XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time, sleep_test_time);
int i;
msg_task_t task = NULL;
msg_comm_t comm = NULL;
MSG_process_sleep(sleep_start_time);
for (i = 0; i < number_of_tasks; i++) {
char mailbox[256];
char snprintf_buffer[256];
snprintf(mailbox,255, "receiver-%ld", i % receivers_count);
snprintf(snprintf_buffer,255, "Task_%d", i);
/* This process first creates a task and send it asynchronously with @ref MSG_task_isend. Then, if: */
task = MSG_task_create(snprintf_buffer, task_comp_size, task_comm_size, NULL);
comm = MSG_task_isend(task, mailbox);
XBT_INFO("Send to receiver-%ld Task_%d", i % receivers_count, i);
if (sleep_test_time > 0) { /* - "test_time" is set to 0, wait on @ref MSG_comm_wait */
while (MSG_comm_test(comm) == 0) { /* - Call @ref MSG_comm_test every "test_time" otherwise */
MSG_process_sleep(sleep_test_time);
};
} else {
MSG_comm_wait(comm, -1);
}
MSG_comm_destroy(comm);
}
for (i = 0; i < receivers_count; i++) {
char mailbox[80];
snprintf(mailbox,79, "receiver-%ld", i % receivers_count);
task = MSG_task_create("finalize", 0, 0, 0);
comm = MSG_task_isend(task, mailbox);
XBT_INFO("Send to receiver-%ld finalize", i % receivers_count);
if (sleep_test_time > 0) {
while (MSG_comm_test(comm) == 0) {
MSG_process_sleep(sleep_test_time);
}
} else {
MSG_comm_wait(comm, -1);
}
MSG_comm_destroy(comm);
}
XBT_INFO("Goodbye now!");
return 0;
}
JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Comm_test(JNIEnv *env, jobject jcomm) {
msg_comm_t comm;
comm = (msg_comm_t) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_bind);
jboolean finished = env->GetBooleanField(jcomm, jcomm_field_Comm_finished);
if (finished == JNI_TRUE) {
return JNI_TRUE;
}
if (not comm) {
jxbt_throw_null(env, "comm is null");
return JNI_FALSE;
}
if (MSG_comm_test(comm)) {
msg_error_t status = MSG_comm_get_status(comm);
if (status == MSG_OK) {
jcomm_bind_task(env,jcomm);
return JNI_TRUE;
} else {
//send the correct exception
jmsg_throw_status(env,status);
}
}
return JNI_FALSE;
}
/** Receiver function */
int receiver(int argc, char *argv[])
{
m_task_t task = NULL;
MSG_error_t res;
int id = -1;
char mailbox[80];
msg_comm_t res_irecv;
double sleep_start_time = atof(argv[2]);
double sleep_test_time = atof(argv[3]);
XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time,
sleep_test_time);
int read;
read = sscanf(argv[1], "%d", &id);
xbt_assert(read,
"Invalid argument %s\n", argv[1]);
MSG_process_sleep(sleep_start_time);
sprintf(mailbox, "receiver-%d", id);
while (1) {
res_irecv = MSG_task_irecv(&(task), mailbox);
XBT_INFO("Wait to receive a task");
if (sleep_test_time == 0) {
res = MSG_comm_wait(res_irecv, -1);
xbt_assert(res == MSG_OK, "MSG_task_get failed");
} else {
while (MSG_comm_test(res_irecv) == 0) {
MSG_process_sleep(sleep_test_time);
};
MSG_comm_destroy(res_irecv);
}
XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
if (!strcmp(MSG_task_get_name(task), "finalize")) {
MSG_task_destroy(task);
break;
}
XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
MSG_task_execute(task);
XBT_INFO("\"%s\" done", MSG_task_get_name(task));
MSG_task_destroy(task);
task = NULL;
}
XBT_INFO("I'm done. See you!");
return 0;
} /* end_of_receiver */
int process_pending_connections(xbt_dynar_t q)
{
unsigned int iter;
int status;
int empty = 0;
msg_comm_t comm;
xbt_dynar_foreach(q, iter, comm) {
empty = 1;
if (MSG_comm_test(comm)) {
MSG_comm_destroy(comm);
status = MSG_comm_get_status(comm);
xbt_assert(status == MSG_OK, "process_pending_connections() failed");
xbt_dynar_cursor_rm(q, &iter);
empty = 0;
}
}
/* Receiver process expects 3 arguments: */
static int receiver(int argc, char *argv[])
{
msg_task_t task = NULL;
XBT_ATTRIB_UNUSED msg_error_t res;
char mailbox[80];
msg_comm_t res_irecv;
int id = xbt_str_parse_int(argv[1], "Invalid id: %s"); /* - unique id */
double sleep_start_time = xbt_str_parse_double(argv[2], "Invalid sleep start parameter: %s"); /* - start time */
double sleep_test_time = xbt_str_parse_double(argv[3], "Invalid sleep test parameter: %s"); /* - test time */
XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time, sleep_test_time);
MSG_process_sleep(sleep_start_time); /* This process first sleeps for "start time" seconds. */
snprintf(mailbox,79, "receiver-%d", id);
while (1) {
res_irecv = MSG_task_irecv(&(task), mailbox); /* Then it posts asynchronous receives (@ref MSG_task_irecv) and*/
XBT_INFO("Wait to receive a task");
if (sleep_test_time > 0) { /* - if "test_time" is set to 0, wait on @ref MSG_comm_wait */
while (MSG_comm_test(res_irecv) == 0) { /* - Call @ref MSG_comm_test every "test_time" otherwise */
MSG_process_sleep(sleep_test_time);
}
} else {
res = MSG_comm_wait(res_irecv, -1);
xbt_assert(res == MSG_OK, "MSG_task_get failed");
}
MSG_comm_destroy(res_irecv);
XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
if (strcmp(MSG_task_get_name(task), "finalize") == 0) { /* If the received task is "finalize", the process ends */
MSG_task_destroy(task);
break;
}
XBT_INFO("Processing \"%s\"", MSG_task_get_name(task)); /* Otherwise, the task is processed */
MSG_task_execute(task);
XBT_INFO("\"%s\" done", MSG_task_get_name(task));
MSG_task_destroy(task);
task = NULL;
}
XBT_INFO("I'm done. See you!");
return 0;
}
/**
* @brief Returns whether a communication is finished.
*
* Unlike wait(), This function always returns immediately.
*
* - Argument 1 (comm): a comm (previously created by isend or irecv)
* - Return values (task/boolean or nil + string): if the communication is not
* finished, return false. If the communication is finished and was successful,
* returns the task received if you are the receiver or true if you are the
* sender. If the communication is finished and has failed, returns nil
* plus an error string.
*/
static int l_comm_test(lua_State* L) {
msg_comm_t comm = sglua_check_comm(L, 1);
/* comm ... */
if (!MSG_comm_test(comm)) {
/* not finished yet */
lua_pushboolean(L, 0);
/* comm ... false */
return 1;
}
else {
/* finished but may have failed */
msg_error_t res = MSG_comm_get_status(comm);
if (res == MSG_OK) {
msg_task_t task = MSG_comm_get_task(comm);
if (MSG_task_get_sender(task) == MSG_process_self()) {
/* I'm the sender */
lua_pushboolean(L, 1);
/* comm ... true */
return 1;
}
else {
/* I'm the receiver: find the Lua task from the C task*/
sglua_task_unregister(L, task);
/* comm ... task */
return 1;
}
}
else {
/* the communication has failed */
lua_pushnil(L);
/* comm ... nil */
lua_pushstring(L, sglua_get_msg_error(res));
/* comm ... nil error */
return 2;
}
}
}
/**
* \brief Node Function
* Arguments:
* - my id
* - the id of a guy I know in the system (except for the first node)
* - the time to sleep before I join (except for the first node)
* - the deadline time
*/
static int node(int argc, char *argv[])
{
double init_time = MSG_get_clock();
msg_task_t task_received = NULL;
int join_success = 0;
double deadline;
xbt_assert(argc == 3 || argc == 5, "Wrong number of arguments for this node");
s_node_t node = {0};
node.id = xbt_str_parse_int(argv[1], "Invalid ID: %s");
node.known_id = -1;
node.ready = -1;
node.pending_tasks = xbt_fifo_new();
get_mailbox(node.id, node.mailbox);
XBT_DEBUG("New node with id %s (%08x)", node.mailbox, node.id);
int i,j,d;
for (i=0; i<LEVELS_COUNT; i++){
d = domain(node.id, i);
for (j=0; j<LEVEL_SIZE; j++)
node.routing_table[i][j] = (d==j) ? node.id : -1;
}
for (i=0; i<NEIGHBORHOOD_SIZE; i++)
node.neighborhood_set[i] = -1;
for (i=0; i<NAMESPACE_SIZE; i++)
node.namespace_set[i] = -1;
if (argc == 3) { // first ring
XBT_DEBUG("Hey! Let's create the system.");
deadline = xbt_str_parse_double(argv[2], "Invalid deadline: %s");
create(&node);
join_success = 1;
}
else {
node.known_id = xbt_str_parse_int(argv[2], "Invalid known ID: %s");
double sleep_time = xbt_str_parse_double(argv[3], "Invalid sleep time: %s");
deadline = xbt_str_parse_double(argv[4], "Invalid deadline: %s");
// sleep before starting
XBT_DEBUG("Let's sleep during %f", sleep_time);
MSG_process_sleep(sleep_time);
XBT_DEBUG("Hey! Let's join the system.");
join_success = join(&node);
}
if (join_success) {
XBT_DEBUG("Waiting ….");
while (MSG_get_clock() < init_time + deadline
// && MSG_get_clock() < node.last_change_date + 1000
&& MSG_get_clock() < max_simulation_time) {
if (node.comm_receive == NULL) {
task_received = NULL;
node.comm_receive = MSG_task_irecv(&task_received, node.mailbox);
// FIXME: do not make MSG_task_irecv() calls from several functions
}
if (!MSG_comm_test(node.comm_receive)) {
MSG_process_sleep(5);
} else {
// a transfer has occurred
msg_error_t status = MSG_comm_get_status(node.comm_receive);
if (status != MSG_OK) {
XBT_DEBUG("Failed to receive a task. Nevermind.");
MSG_comm_destroy(node.comm_receive);
node.comm_receive = NULL;
}
else {
// the task was successfully received
MSG_comm_destroy(node.comm_receive);
node.comm_receive = NULL;
handle_task(&node, task_received);
}
}
}
print_node(&node);
}
return 1;
}
/** Receiver function */
int receiver(int argc, char *argv[])
{
msg_task_t task = NULL;
_XBT_GNUC_UNUSED msg_error_t res;
int id = -1;
char mailbox[80];
msg_comm_t res_irecv;
double sleep_start_time = atof(argv[2]);
double sleep_test_time = atof(argv[3]);
long senders_count = atol(argv[4]);
XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time,
sleep_test_time);
int timeout = -1;
int timeflag = 1; // set to 1 for no timeout
_XBT_GNUC_UNUSED int read;
read = sscanf(argv[1], "%d", &id);
xbt_assert(read,
"Invalid argument %s\n", argv[1]);
MSG_process_sleep(sleep_start_time);
sprintf(mailbox, "receiver-%d", id);
while (1) {
res_irecv = MSG_task_irecv(&(task), mailbox);
XBT_INFO("Wait to receive a task - sleep_test = %f", sleep_test_time);
if (sleep_test_time == 0) {
if (MSG_get_clock() >= 3.9 && timeflag == 0) {
timeflag = 1;
timeout = 0.05;
}
res = MSG_comm_wait(res_irecv, timeout);
//xbt_assert(res == MSG_OK, "MSG_task_get failed");
if (res != MSG_OK) {
XBT_INFO("Timeout !!");
timeout = -1;
MSG_comm_destroy(res_irecv);
continue;
}
} else {
while (MSG_comm_test(res_irecv) == 0) {
XBT_INFO("Attente ...");
MSG_process_sleep(sleep_test_time);
};
XBT_INFO("comm destroy");
MSG_comm_destroy(res_irecv);
}
XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
if (!strcmp(MSG_task_get_name(task), "finalize")) {
//MSG_task_destroy(task);
//task = NULL;
senders_count--;
if (senders_count == 0) {
break;
}
} else {
XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
MSG_task_execute(task);
XBT_INFO("\"%s\" done", MSG_task_get_name(task));
//MSG_task_destroy(task);
//task = NULL;
}
MSG_task_destroy(task);
task = NULL;
}
XBT_INFO("I'm done. See you!");
return 0;
} /* end_of_receiver */