X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/03d36345c4247a907709b86c189a53f5f85bea88..20c4a4134847860ac7093fa36623e47b35888558:/src/simix/smx_global.c diff --git a/src/simix/smx_global.c b/src/simix/smx_global.c index 6d52482a29..0404d17deb 100644 --- a/src/simix/smx_global.c +++ b/src/simix/smx_global.c @@ -1,9 +1,16 @@ -/* 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 +#include "src/portable.h" +#ifdef HAVE_SYS_PTRACE_H +# include +# include +#endif + #include "smx_private.h" #include "xbt/heap.h" #include "xbt/sysdep.h" @@ -11,15 +18,24 @@ #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 "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 +#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"); @@ -76,14 +92,6 @@ static void _XBT_CALL segvhandler(int signum, siginfo_t *siginfo, void *context) } #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); } @@ -146,6 +154,10 @@ XBT_INLINE double SIMIX_timer_next(void) */ 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) { @@ -173,6 +185,7 @@ void SIMIX_global_init(int *argc, char **argv) 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(); @@ -200,16 +213,22 @@ void SIMIX_global_init(int *argc, char **argv) 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 initialization is done ASAP. + // We need to communicate initialization of the different layers to the model-checker. + MC_client_init(); +#endif + if (_sg_cfg_exit_asap) exit(0); } +int smx_cleaned = 0; /** * \ingroup SIMIX_API * \brief Clean the SIMIX simulation @@ -218,13 +237,19 @@ void SIMIX_global_init(int *argc, char **argv) */ 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 */ @@ -241,6 +266,9 @@ void SIMIX_clean(void) 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); @@ -281,7 +309,7 @@ void SIMIX_clean(void) */ XBT_INLINE double SIMIX_get_clock(void) { - if(MC_is_active()){ + if(MC_is_active() || MC_record_replay_is_active()){ return MC_process_clock_get(SIMIX_process_self()); }else{ return surf_get_clock(); @@ -308,6 +336,7 @@ static int process_syscall_color(void *p) void SIMIX_run(void) { if(MC_record_path) { + MC_record_replay_init(); MC_record_replay_from_string(MC_record_path); return; } @@ -340,7 +369,7 @@ void SIMIX_run(void) 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 */ @@ -403,12 +432,30 @@ void SIMIX_run(void) 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 */ @@ -425,14 +472,19 @@ void SIMIX_run(void) /* 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 */ @@ -440,7 +492,7 @@ void SIMIX_run(void) 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); } @@ -455,9 +507,7 @@ void SIMIX_run(void) 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(); @@ -474,7 +524,7 @@ void SIMIX_run(void) * \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); @@ -482,6 +532,16 @@ XBT_INLINE void SIMIX_timer_set(double date, void *function, void *arg) 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; } /** @@ -576,12 +636,12 @@ void SIMIX_display_process_status(void) 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_get_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_get_name(process->host)); } } }