examples/c/actor-join/actor-join.c

   1 /* Copyright (c) 2010-2020. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "simgrid/actor.h"
   8 #include "simgrid/engine.h"
   9 #include "simgrid/host.h"
  10
  11 #include "xbt/log.h"
  12 #include "xbt/sysdep.h"
  13
  14 XBT_LOG_NEW_DEFAULT_CATEGORY(actor_join, "Messages specific for this example");
  15
  16 static void sleeper(XBT_ATTRIB_UNUSED int argc, XBT_ATTRIB_UNUSED char* argv[])
  17 {
  18   XBT_INFO("Sleeper started");
  19   sg_actor_sleep_for(3);
  20   XBT_INFO("I'm done. See you!");
  21 }
  22
  23 static void master(XBT_ATTRIB_UNUSED int argc, XBT_ATTRIB_UNUSED char* argv[])
  24 {
  25   sg_actor_t actor;
  26
  27   XBT_INFO("Start sleeper");
  28   actor = sg_actor_init("sleeper from master", sg_host_self());
  29   sg_actor_start(actor, sleeper, 0, NULL);
  30   XBT_INFO("Join the sleeper (timeout 2)");
  31   sg_actor_join(actor, 2);
  32
  33   XBT_INFO("Start sleeper");
  34   actor = sg_actor_init("sleeper from master", sg_host_self());
  35   sg_actor_start(actor, sleeper, 0, NULL);
  36   XBT_INFO("Join the sleeper (timeout 4)");
  37   sg_actor_join(actor, 4);
  38
  39   XBT_INFO("Start sleeper");
  40   actor = sg_actor_init("sleeper from master", sg_host_self());
  41   sg_actor_start(actor, sleeper, 0, NULL);
  42   XBT_INFO("Join the sleeper (timeout 2)");
  43   sg_actor_join(actor, 2);
  44
  45   XBT_INFO("Start sleeper");
  46   actor = sg_actor_init("sleeper from master", sg_host_self());
  47   sg_actor_start(actor, sleeper, 0, NULL);
  48   sg_actor_ref(actor); // We have to take that ref because the actor will stop before we join it
  49   XBT_INFO("Waiting 4");
  50   sg_actor_sleep_for(4);
  51   XBT_INFO("Join the sleeper after its end (timeout 1)");
  52   sg_actor_join(actor, 1);
  53   sg_actor_unref(actor); // Avoid to leak memory
  54
  55   XBT_INFO("Goodbye now!");
  56
  57   sg_actor_sleep_for(1);
  58
  59   XBT_INFO("Goodbye now!");
  60 }
  61
  62 int main(int argc, char* argv[])
  63 {
  64   simgrid_init(&argc, argv);
  65   xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
  66
  67   simgrid_load_platform(argv[1]);
  68
  69   sg_actor_t actor = sg_actor_init("master", sg_host_by_name("Tremblay"));
  70   sg_actor_start(actor, master, 0, NULL);
  71
  72   simgrid_run();
  73
  74   XBT_INFO("Simulation time %g", simgrid_get_clock());
  75
  76   return 0;
  77 }