-/* Copyright (c) 2007-2014. The SimGrid Team.
+/* Copyright (c) 2007-2015. 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 <stdlib.h>
+#include <sys/ptrace.h>
#include "smx_private.h"
#include "xbt/heap.h"
#include "xbt/str.h"
#include "xbt/ex.h" /* ex_backtrace_display */
#include "mc/mc.h"
+#include "src/mc/mc_replay.h"
#include "simgrid/sg_config.h"
#ifdef HAVE_MC
-#include "mc/mc_private.h"
-#include "mc/mc_model_checker.h"
-#include "mc/mc_protocol.h"
-#include "mc/mc_client.h"
+#include "src/mc/mc_private.h"
+#include "src/mc/mc_protocol.h"
+#include "src/mc/mc_client.h"
#endif
-#include "mc/mc_record.h"
+
+#ifdef HAVE_MC
+#include <stdlib.h>
+#include "src/mc/mc_protocol.h"
+#endif
+
+#include "src/mc/mc_record.h"
#ifdef HAVE_SMPI
-#include "smpi/private.h"
+#include "src/smpi/private.h"
#endif
XBT_LOG_NEW_CATEGORY(simix, "All SIMIX categories");
}
#endif
}
-#ifdef HAVE_MC
- if (MC_is_active()) {
- if (mc_stack) {
- MC_dump_stack_safety(mc_stack);
- }
- MC_print_statistics(mc_stats);
- }
-#endif
raise(signum);
}
*/
void SIMIX_global_init(int *argc, char **argv)
{
+#ifdef HAVE_MC
+ _sg_do_model_check = getenv(MC_ENV_VARIABLE) != NULL;
+#endif
+
s_smx_process_t proc;
if (!simix_global) {
SIMIX_synchro_mallocator_new_f, SIMIX_synchro_mallocator_free_f,
SIMIX_synchro_mallocator_reset_f);
simix_global->autorestart = SIMIX_host_restart_processes;
+ simix_global->mutex = xbt_os_mutex_init();
surf_init(argc, argv); /* Initialize SURF structures */
SIMIX_context_mod_init();
simix_timers = xbt_heap_new(8, &free);
}
- SIMIX_HOST_LEVEL = xbt_lib_add_level(host_lib,SIMIX_host_destroy);
SIMIX_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, SIMIX_storage_destroy);
if (sg_cfg_get_boolean("clean_atexit"))
atexit(SIMIX_clean);
#ifdef HAVE_MC
- // The communication initialisation is done ASAP.
- // We need to commuicate initialisation of the different layers to the model-checker.
+ // The communication initialization is done ASAP.
+ // We need to communicate initialization of the different layers to the model-checker.
if (mc_mode == MC_MODE_NONE) {
if (getenv(MC_ENV_SOCKET_FD)) {
+
mc_mode = MC_MODE_CLIENT;
MC_client_init();
- MC_client_hello();
- } else {
- mc_mode = MC_MODE_STANDALONE;
+
+ // Waiting for the model-checker:
+ if (ptrace(PTRACE_TRACEME, 0, NULL, NULL) == -1 || raise(SIGSTOP) != 0)
+ xbt_die("Could not wait for the model-checker");
+
+ MC_client_handle_messages();
}
}
#endif
exit(0);
}
+int smx_cleaned = 0;
/**
* \ingroup SIMIX_API
* \brief Clean the SIMIX simulation
*/
void SIMIX_clean(void)
{
- static int cleaned = 0;
#ifdef TIME_BENCH_PER_SR
smx_ctx_raw_new_sr();
#endif
- if (cleaned) return; // to avoid double cleaning by java and C
- cleaned = 1;
- /* Kill everyone (except maestro) */
+ if (smx_cleaned) return; // to avoid double cleaning by java and C
+ smx_cleaned = 1;
+ XBT_DEBUG("SIMIX_clean called. Simulation's over.");
+ if (!xbt_dynar_is_empty(simix_global->process_to_run) && SIMIX_get_clock() == 0.0) {
+ XBT_CRITICAL(" ");
+ XBT_CRITICAL("The time is still 0, and you still have processes ready to run.");
+ XBT_CRITICAL("It seems that you forgot to run the simulation that you setup.");
+ xbt_die("Bailing out to avoid that stop-before-start madness. Please fix your code.");
+ }
+ /* Kill all processes (but maestro) */
SIMIX_process_killall(simix_global->maestro_process, 1);
/* Exit the SIMIX network module */
simix_global->process_to_destroy = NULL;
xbt_dict_free(&(simix_global->registered_functions));
+ xbt_os_mutex_destroy(simix_global->mutex);
+ simix_global->mutex = NULL;
+
/* Let's free maestro now */
SIMIX_context_free(simix_global->maestro_process->context);
xbt_free(simix_global->maestro_process->running_ctx);
xbt_os_cputimer_resume(simix_global->timer_seq);
#endif
- /* Move all killing processes to the end of the list, because killing a process that have an ongoing simcall is a bad idea */
+ /* Move all killer processes to the end of the list, because killing a process that have an ongoing simcall is a bad idea */
xbt_dynar_three_way_partition(simix_global->process_that_ran, process_syscall_color);
/* answer sequentially and in a fixed arbitrary order all the simcalls that were issued during that sub-round */
SIMIX_simcall_handle(&process->simcall, 0);
}
}
+ /* Wake up all processes waiting for a Surf action to finish */
+ xbt_dynar_foreach(model_list, iter, model) {
+ XBT_DEBUG("Handling process whose action failed");
+ while ((action = surf_model_extract_failed_action_set(model))) {
+ XBT_DEBUG(" Handling Action %p",action);
+ SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
+ }
+ XBT_DEBUG("Handling process whose action terminated normally");
+ while ((action = surf_model_extract_done_action_set(model))) {
+ XBT_DEBUG(" Handling Action %p",action);
+ if (surf_action_get_data(action) == NULL)
+ XBT_DEBUG("probably vcpu's action %p, skip", action);
+ else
+ SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
+ }
+ }
}
time = SIMIX_timer_next();
- if (time != -1.0 || xbt_swag_size(simix_global->process_list) != 0)
+ if (time != -1.0 || xbt_swag_size(simix_global->process_list) != 0) {
+ XBT_DEBUG("Calling surf_solve");
time = surf_solve(time);
-
+ XBT_DEBUG("Moving time ahead : %g", time);
+ }
/* Notify all the hosts that have failed */
/* FIXME: iterate through the list of failed host and mark each of them */
/* as failed. On each host, signal all the running processes with host_fail */
/* Wake up all processes waiting for a Surf action to finish */
xbt_dynar_foreach(model_list, iter, model) {
- while ((action = surf_model_extract_failed_action_set(model)))
+ XBT_DEBUG("Handling process whose action failed");
+ while ((action = surf_model_extract_failed_action_set(model))) {
+ XBT_DEBUG(" Handling Action %p",action);
SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
-
- while ((action = surf_model_extract_done_action_set(model)))
+ }
+ XBT_DEBUG("Handling process whose action terminated normally");
+ while ((action = surf_model_extract_done_action_set(model))) {
+ XBT_DEBUG(" Handling Action %p",action);
if (surf_action_get_data(action) == NULL)
XBT_DEBUG("probably vcpu's action %p, skip", action);
else
SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
+ }
}
/* Autorestart all process */
char *hostname = NULL;
xbt_dynar_foreach(host_that_restart,iter,hostname) {
XBT_INFO("Restart processes on host: %s",hostname);
- SIMIX_host_autorestart(SIMIX_host_get_by_name(hostname));
+ SIMIX_host_autorestart(sg_host_by_name(hostname));
}
xbt_dynar_reset(host_that_restart);
}
if (xbt_swag_size(simix_global->process_list) != 0) {
-#ifdef HAVE_TRACING
- TRACE_end();
-#endif
+ TRACE_end();
XBT_CRITICAL("Oops ! Deadlock or code not perfectly clean.");
SIMIX_display_process_status();
* \param arg Parameters of the function
*
*/
-XBT_INLINE void SIMIX_timer_set(double date, void *function, void *arg)
+XBT_INLINE smx_timer_t SIMIX_timer_set(double date, void *function, void *arg)
{
smx_timer_t timer = xbt_new0(s_smx_timer_t, 1);
timer->func = function;
timer->args = arg;
xbt_heap_push(simix_timers, timer, date);
+ return timer;
+}
+/** @brief cancels a timer that was added earlier */
+XBT_INLINE void SIMIX_timer_remove(smx_timer_t timer) {
+ xbt_heap_rm_elm(simix_timers, timer, timer->date);
+}
+
+/** @brief Returns the date at which the timer will trigger (or 0 if NULL timer) */
+XBT_INLINE double SIMIX_timer_get_date(smx_timer_t timer) {
+ return timer?timer->date:0;
}
/**
break;
}
XBT_INFO("Process %lu (%s@%s): waiting for %s synchro %p (%s) in state %d to finish",
- process->pid, process->name, sg_host_name(process->smx_host),
+ process->pid, process->name, sg_host_name(process->host),
synchro_description, process->waiting_synchro,
process->waiting_synchro->name, (int)process->waiting_synchro->state);
}
else {
- XBT_INFO("Process %lu (%s@%s)", process->pid, process->name, sg_host_name(process->smx_host));
+ XBT_INFO("Process %lu (%s@%s)", process->pid, process->name, sg_host_name(process->host));
}
}
}
