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/* Copyright (c) 2007-2025. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "simgrid/actor.h"
#include "simgrid/engine.h"
#include "simgrid/host.h"
#include "xbt/log.h"
#include "xbt/sysdep.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(actor_kill, "Messages specific for this example");
static void victim_on_exit(int ignored1, void* ignored2)
{
XBT_INFO("I have been killed!");
}
static void victimA_fun(int argc, char* argv[])
{
sg_actor_on_exit(&victim_on_exit, NULL);
XBT_INFO("Hello!");
XBT_INFO("Suspending myself");
sg_actor_suspend(sg_actor_self()); /* - First suspend itself */
XBT_INFO("OK, OK. Let's work"); /* - Then is resumed and start to execute a task */
sg_actor_execute(1e9);
XBT_INFO("Bye!"); /* - But will never reach the end of it */
}
static void victimB_fun(int argc, char* argv[])
{
XBT_INFO("Terminate before being killed");
}
static void killer_fun(int argc, char* argv[])
{
XBT_INFO("Hello!"); /* - First start a victim actor */
sg_actor_t victimA = sg_actor_create("victim A", sg_host_by_name("Fafard"), &victimA_fun, 0, NULL);
sg_actor_t victimB = sg_actor_create("victim B", sg_host_by_name("Jupiter"), &victimB_fun, 0, NULL);
sg_actor_ref(victimB); // We have to take that ref because victimB will end before we try to kill it
sg_actor_sleep_for(10.0);
XBT_INFO("Resume the victim A"); /* - Resume it from its suspended state */
sg_actor_resume(victimA);
sg_actor_sleep_for(2.0);
XBT_INFO("Kill the victim A"); /* - and then kill it */
sg_actor_kill(victimA);
sg_actor_sleep_for(1.0);
XBT_INFO("Kill victimB, even if it's already dead"); /* that's a no-op, there is no zombies in SimGrid */
sg_actor_kill(victimB); // the actor is automatically garbage-collected after this last reference
sg_actor_unref(victimB); // Release the ref taken on victimB to avoid to leak memory
sg_actor_sleep_for(1.0);
XBT_INFO("Start a new actor, and kill it right away");
sg_actor_t victimC = sg_actor_create("victim C", sg_host_by_name("Jupiter"), &victimA_fun, 0, NULL);
sg_actor_kill(victimC);
sg_actor_sleep_for(1.0);
XBT_INFO("Killing everybody but myself");
sg_actor_kill_all();
XBT_INFO("OK, goodbye now. I commit a suicide.");
sg_actor_exit();
XBT_INFO("This line will never get displayed: I'm already dead since the previous line.");
}
int main(int argc, char* argv[])
{
simgrid_init(&argc, argv);
xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s platform.xml\n", argv[0], argv[0]);
simgrid_load_platform(argv[1]);
/* - Create and deploy killer actor, that will create the victim actor */
sg_actor_create("killer", sg_host_by_name("Tremblay"), &killer_fun, 0, NULL);
simgrid_run();
return 0;
}
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