X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ffe8ce65fd9a8e18a0469f26f067c3ea6d5d60d4..145df5da7bc0323bf1817c9c8602482726aa5a08:/src/simix/smx_global.c diff --git a/src/simix/smx_global.c b/src/simix/smx_global.c index 29474e8500..e1bf5ae9c4 100644 --- a/src/simix/smx_global.c +++ b/src/simix/smx_global.c @@ -1,10 +1,15 @@ -/* 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" @@ -13,18 +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 "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 +#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"); @@ -81,14 +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); } @@ -151,6 +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) { @@ -178,6 +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(); @@ -205,22 +213,25 @@ 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 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 @@ -229,6 +240,7 @@ void SIMIX_global_init(int *argc, char **argv) exit(0); } +int smx_cleaned = 0; /** * \ingroup SIMIX_API * \brief Clean the SIMIX simulation @@ -237,13 +249,19 @@ 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 */ @@ -260,6 +278,9 @@ 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); @@ -423,12 +444,30 @@ 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 */ @@ -445,14 +484,19 @@ 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 */ @@ -460,7 +504,7 @@ 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); } @@ -475,9 +519,7 @@ 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(); @@ -494,7 +536,7 @@ 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); @@ -502,6 +544,16 @@ 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; } /** @@ -596,12 +648,12 @@ 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)); } } }