X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/be24a421768041ffd250dc4dc68a285f0b59b88f..1a39cc6fdc908c33507b5b0f8bae61f7286fd4ca:/src/simix/smx_global.c diff --git a/src/simix/smx_global.c b/src/simix/smx_global.c index 192a816082..c4a79957bd 100644 --- a/src/simix/smx_global.c +++ b/src/simix/smx_global.c @@ -1,7 +1,5 @@ -/* $Id$ */ - -/* Copyright (c) 2007 Arnaud Legrand, Bruno Donassolo. - All rights reserved. */ +/* Copyright (c) 2007, 2008, 2009, 2010. 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. */ @@ -10,95 +8,35 @@ #include "xbt/sysdep.h" #include "xbt/log.h" #include "xbt/str.h" -#include "xbt/ex.h" /* ex_backtrace_display */ +#include "xbt/ex.h" /* ex_backtrace_display */ +XBT_LOG_EXTERNAL_CATEGORY(simix); +XBT_LOG_EXTERNAL_CATEGORY(simix_action); +XBT_LOG_EXTERNAL_CATEGORY(simix_deployment); +XBT_LOG_EXTERNAL_CATEGORY(simix_environment); +XBT_LOG_EXTERNAL_CATEGORY(simix_host); +XBT_LOG_EXTERNAL_CATEGORY(simix_process); +XBT_LOG_EXTERNAL_CATEGORY(simix_synchro); +XBT_LOG_EXTERNAL_CATEGORY(simix_context); XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_kernel, simix, - "Logging specific to SIMIX (kernel)"); + "Logging specific to SIMIX (kernel)"); SIMIX_Global_t simix_global = NULL; -/********************************* SIMIX **************************************/ -static void __simix_config_helper(const char *name, ...) -{ - va_list pa; - va_start(pa, name); - - SIMIX_config(name, pa); - va_end(pa); -} +/* FIXME: Yeah, I'll do it in a portable maner one day [Mt] */ +#include -static void simix_cfg_control_set(const char *control_string) +static void _XBT_CALL inthandler(int ignored) { - /* To split the string in commands, and the cursors */ - xbt_dynar_t set_strings; - char *str; - unsigned int cpt; - - if (!control_string) - return; - DEBUG1("Parse log settings '%s'", control_string); - - /* split the string, and remove empty entries */ - set_strings = xbt_str_split_quoted(control_string); - - if (xbt_dynar_length(set_strings) == 0) { /* vicious user! */ - xbt_dynar_free(&set_strings); - return; - } - /* Parse each entry and either use it right now (if the category was already - created), or store it for further use */ - xbt_dynar_foreach(set_strings, cpt, str) { - char *control_string, *control_string_sav, *name, *value; - - - control_string = control_string_sav = strdup(str); - control_string += strspn(control_string, " "); - name = control_string; - control_string += strcspn(str, ":="); - value = control_string; - *value = 0; - value++; - - xbt_assert1(strlen(name) != 0, "Invalid name for configuration: '%s'", - name); - xbt_assert1(strlen(value) != 0, - "Invalid value for configuration: '%s'", value); - INFO2("setting '%s' to '%s'", name, value); - - __simix_config_helper(name, value); - - free(control_string_sav); - } - xbt_dynar_free(&set_strings); + INFO0("CTRL-C pressed. Displaying status and bailing out"); + SIMIX_display_process_status(); + exit(1); } -static void simix_cfg_init(int *argc, char **argv) -{ - int i, j; - char *opt; - - for (i = 1; i < *argc; i++) { - if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) { - opt = strchr(argv[i], '='); - opt++; - - simix_cfg_control_set(opt); - DEBUG1("Did apply '%s' as config setting", opt); - /*remove this from argv */ - - for (j = i + 1; j < *argc; j++) { - argv[j - 1] = argv[j]; - } - - argv[j - 1] = NULL; - (*argc)--; - i--; /* compensate effect of next loop incrementation */ - } - } -} +/********************************* SIMIX **************************************/ /** - * \brief Initialize some SIMIX internal data. + * \brief Initialize SIMIX internal data. * * \param argc Argc * \param argv Argv @@ -108,22 +46,45 @@ void SIMIX_global_init(int *argc, char **argv) s_smx_process_t proc; if (!simix_global) { - surf_init(argc, argv); /* Initialize some common structures. Warning, it sets simix_global=NULL */ - simix_cfg_init(argc, argv); + /* Connect our log channels: that must be done manually under windows */ + XBT_LOG_CONNECT(simix_action, simix); + XBT_LOG_CONNECT(simix_deployment, simix); + XBT_LOG_CONNECT(simix_environment, simix); + XBT_LOG_CONNECT(simix_host, simix); + XBT_LOG_CONNECT(simix_kernel, simix); + XBT_LOG_CONNECT(simix_process, simix); + XBT_LOG_CONNECT(simix_synchro, simix); + XBT_LOG_CONNECT(simix_context, simix); simix_global = xbt_new0(s_SIMIX_Global_t, 1); - simix_global->host = xbt_fifo_new(); + simix_global->host = xbt_dict_new(); simix_global->process_to_run = - xbt_swag_new(xbt_swag_offset(proc, synchro_hookup)); + xbt_swag_new(xbt_swag_offset(proc, synchro_hookup)); simix_global->process_list = - xbt_swag_new(xbt_swag_offset(proc, process_hookup)); + xbt_swag_new(xbt_swag_offset(proc, process_hookup)); + simix_global->process_to_destroy = + xbt_swag_new(xbt_swag_offset(proc, destroy_hookup)); + simix_global->current_process = NULL; + simix_global->maestro_process = NULL; simix_global->registered_functions = xbt_dict_new(); simix_global->create_process_function = NULL; simix_global->kill_process_function = NULL; simix_global->cleanup_process_function = SIMIX_process_cleanup; + + SIMIX_context_mod_init(); + SIMIX_create_maestro_process(); + + /* context exception handlers */ + __xbt_ex_ctx = SIMIX_process_get_exception; + __xbt_ex_terminate = SIMIX_process_exception_terminate; + + + /* Prepare to display some more info when dying on Ctrl-C pressing */ + signal(SIGINT, inthandler); + surf_init(argc, argv); /* Initialize SURF structures */ } } @@ -136,43 +97,70 @@ void SIMIX_display_process_status(void) int nbprocess = xbt_swag_size(simix_global->process_list); INFO1("%d processes are still running, waiting for something.", - nbprocess); + nbprocess); /* List the process and their state */ INFO0 ("Legend of the following listing: \" on : .\""); xbt_swag_foreach(process, simix_global->process_list) { - smx_simdata_process_t p_simdata = - (smx_simdata_process_t) process->simdata; - // simdata_host_t h_simdata=(simdata_host_t)p_simdata->host->simdata; char *who, *who2; - asprintf(&who, "%s on %s: %s", - process->name, - p_simdata->smx_host->name, - (process->simdata->blocked) ? "[BLOCKED] " - : ((process->simdata->suspended) ? "[SUSPENDED] " : "")); + who = bprintf("%s on %s: %s", + process->name, + process->smx_host->name, + (process->blocked) ? "[BLOCKED] " + : ((process->suspended) ? "[SUSPENDED] " : "")); - if (p_simdata->mutex) { - who2 = bprintf("%s Blocked on mutex %p", who, p_simdata->mutex); + if (process->mutex) { + who2 = + bprintf("%s Blocked on mutex %p", who, + (XBT_LOG_ISENABLED + (simix_kernel, + xbt_log_priority_verbose)) ? process->mutex : (void *) + 0xdead); free(who); who = who2; - } else if (p_simdata->cond) { + } else if (process->cond) { + who2 = + bprintf + ("%s Blocked on condition %p; Waiting for the following actions:", + who, + (XBT_LOG_ISENABLED(simix_kernel, xbt_log_priority_verbose)) ? + process->cond : (void *) 0xdead); + free(who); + who = who2; + xbt_fifo_foreach(process->cond->actions, item, act, smx_action_t) { + who2 = + bprintf("%s '%s'(%p)", who, act->name, + (XBT_LOG_ISENABLED + (simix_kernel, xbt_log_priority_verbose)) + ? act : (void *) 0xdead); + free(who); + who = who2; + } + } else if (process->sem) { who2 = - bprintf - ("%s Blocked on condition %p; Waiting for the following actions:", - who, p_simdata->cond); + bprintf + ("%s Blocked on semaphore %p; Waiting for the following actions:", + who, + (XBT_LOG_ISENABLED(simix_kernel, xbt_log_priority_verbose)) ? + process->sem : (void *) 0xdead); free(who); who = who2; - xbt_fifo_foreach(p_simdata->cond->actions, item, act, smx_action_t) { - who2 = bprintf("%s '%s'(%p)", who, act->name,act); - free(who); - who = who2; + xbt_fifo_foreach(process->sem->actions, item, act, smx_action_t) { + who2 = + bprintf("%s '%s'(%p)", who, act->name, + (XBT_LOG_ISENABLED + (simix_kernel, xbt_log_priority_verbose)) + ? act : (void *) 0xdead); + free(who); + who = who2; } + } else { who2 = - bprintf - ("%s Blocked in an unknown status (please report this bug)", - who); + bprintf + ("%s Blocked in an unknown status (please report this bug)", + who); free(who); who = who2; } @@ -181,15 +169,6 @@ void SIMIX_display_process_status(void) } } -/* FIXME: Yeah, I'll do it in a portable maner one day [Mt] */ -#include - -static void _XBT_CALL inthandler(int ignored) -{ - INFO0("CTRL-C pressed. Displaying status and bailing out"); - SIMIX_display_process_status(); - exit(1); -} /** * \brief Launch the SIMIX simulation, debug purpose @@ -202,9 +181,6 @@ void __SIMIX_main(void) xbt_fifo_t actions_done = xbt_fifo_new(); xbt_fifo_t actions_failed = xbt_fifo_new(); - /* Prepare to display some more info when dying on Ctrl-C pressing */ - signal(SIGINT, inthandler); - /* Clean IO before the run */ fflush(stdout); fflush(stderr); @@ -220,13 +196,13 @@ void __SIMIX_main(void) DEBUG1("** %s failed **", smx_action->name); xbt_fifo_foreach(smx_action->cond_list, _cursor, cond, smx_cond_t) { - xbt_swag_foreach(process, cond->sleeping) { - DEBUG2("\t preparing to wake up %s on %s", - process->name, process->simdata->smx_host->name); - } - SIMIX_cond_broadcast(cond); - /* remove conditional from action */ - SIMIX_unregister_action_to_condition(smx_action, cond); + xbt_swag_foreach(process, cond->sleeping) { + DEBUG2("\t preparing to wake up %s on %s", + process->name, process->smx_host->name); + } + SIMIX_cond_broadcast(cond); + /* remove conditional from action */ + SIMIX_unregister_action_to_condition(smx_action, cond); } } @@ -235,13 +211,13 @@ void __SIMIX_main(void) DEBUG1("** %s done **", smx_action->name); xbt_fifo_foreach(smx_action->cond_list, _cursor, cond, smx_cond_t) { - xbt_swag_foreach(process, cond->sleeping) { - DEBUG2("\t preparing to wake up %s on %s", - process->name, process->simdata->smx_host->name); - } - SIMIX_cond_broadcast(cond); - /* remove conditional from action */ - SIMIX_unregister_action_to_condition(smx_action, cond); + xbt_swag_foreach(process, cond->sleeping) { + DEBUG2("\t preparing to wake up %s on %s", + process->name, process->smx_host->name); + } + SIMIX_cond_broadcast(cond); + /* remove conditional from action */ + SIMIX_unregister_action_to_condition(smx_action, cond); } } } @@ -250,54 +226,60 @@ void __SIMIX_main(void) /** * \brief Kill all running process - * + * Only maestro can kill everyone :) */ void SIMIX_process_killall() { smx_process_t p = NULL; - smx_process_t self = SIMIX_process_self(); - - while ((p = xbt_swag_extract(simix_global->process_list))) { - if (p != self) - SIMIX_process_kill(p); - } + xbt_assert0((simix_global->current_process == + simix_global->maestro_process), + "You are not supposed to run this function here!"); - xbt_context_empty_trash(); + while ((p = xbt_swag_extract(simix_global->process_list))) + SIMIX_process_kill(p); - if (self) { - xbt_context_yield(); - } + SIMIX_process_empty_trash(); return; } -/** +/** * \brief Clean the SIMIX simulation * - * This functions remove all memories needed to the SIMIX execution + * This functions remove the memory used by SIMIX */ void SIMIX_clean(void) { - xbt_fifo_item_t i = NULL; - smx_host_t h = NULL; - smx_process_t p = NULL; - - while ((p = xbt_swag_extract(simix_global->process_list))) { - SIMIX_process_kill(p); - } + /* Kill everyone (except maestro) */ + SIMIX_process_killall(); - xbt_fifo_foreach(simix_global->host, i, h, smx_host_t) { - __SIMIX_host_destroy(h); - } - xbt_fifo_free(simix_global->host); + /* Free the remaining data structures */ xbt_swag_free(simix_global->process_to_run); + xbt_swag_free(simix_global->process_to_destroy); xbt_swag_free(simix_global->process_list); + simix_global->process_list = NULL; + simix_global->process_to_destroy = NULL; xbt_dict_free(&(simix_global->registered_functions)); - simix_config_finalize(); - free(simix_global); - simix_global = NULL; + xbt_dict_free(&(simix_global->host)); + + /* Let's free maestro now */ + SIMIX_context_free(simix_global->maestro_process->context); + xbt_free(simix_global->maestro_process->exception); + xbt_free(simix_global->maestro_process); + simix_global->maestro_process = NULL; + + /* Restore the default exception setup */ + __xbt_ex_ctx = &__xbt_ex_ctx_default; + __xbt_ex_terminate = &__xbt_ex_terminate_default; + + /* Finish context module and SURF */ + SIMIX_context_mod_exit(); + surf_exit(); + xbt_free(simix_global); + simix_global = NULL; + return; } @@ -307,15 +289,25 @@ void SIMIX_clean(void) * * \return Return the clock. */ -double SIMIX_get_clock(void) +XBT_INLINE double SIMIX_get_clock(void) { return surf_get_clock(); } +/** + * \brief Finish the simulation initialization + * + * Must be called before the first call to SIMIX_solve() + */ +XBT_INLINE void SIMIX_init(void) +{ + surf_presolve(); +} + /** * \brief Does a turn of the simulation * - * Executes a step in the surf simulation, adding to the two lists all the actions that finished on this turn. Schedules all processus in the process_to_run list. + * Executes a step in the surf simulation, adding to the two lists all the actions that finished on this turn. Schedules all processus in the process_to_run list. * \param actions_done List of actions done * \param actions_failed List of actions failed * \return The time spent to execute the simulation or -1 if the simulation ended @@ -327,23 +319,17 @@ double SIMIX_solve(xbt_fifo_t actions_done, xbt_fifo_t actions_failed) unsigned int iter; double elapsed_time = 0.0; static int state_modifications = 1; - static int first = 1; + int actions_on_system = 0; - xbt_context_empty_trash(); - if (xbt_swag_size(simix_global->process_to_run) && (elapsed_time > 0)) { + SIMIX_process_empty_trash(); + if (XBT_LOG_ISENABLED(simix_kernel, xbt_log_priority_debug) && + xbt_swag_size(simix_global->process_to_run) && (elapsed_time > 0)) { DEBUG0("**************************************************"); } - if (first) { - surf_solve(); /* Takes traces into account. Returns 0.0 */ - first = 0; - } + while ((process = xbt_swag_extract(simix_global->process_to_run))) { - DEBUG2("Scheduling %s on %s", - process->name, process->simdata->smx_host->name); - simix_global->current_process = process; - xbt_context_schedule(process->simdata->context); - /* fflush(NULL); */ - simix_global->current_process = NULL; + DEBUG2("Scheduling %s on %s", process->name, process->smx_host->name); + SIMIX_process_schedule(process); } { @@ -355,65 +341,113 @@ double SIMIX_solve(xbt_fifo_t actions_done, xbt_fifo_t actions_failed) void *arg = NULL; xbt_dynar_foreach(model_list, iter, model) { - if (xbt_swag_size(model->common_public->states.failed_action_set) - || xbt_swag_size(model->common_public->states. - done_action_set)) { - state_modifications = 1; - break; + if (xbt_swag_size(model->states.failed_action_set) + || xbt_swag_size(model->states.done_action_set)) { + state_modifications = 1; + break; + } + if (xbt_swag_size(model->states.running_action_set) + || xbt_swag_size(model->states.ready_action_set)) { + actions_on_system = 1; } } - - if (!state_modifications) { + /* only calls surf_solve if there are actions to run */ + if (!state_modifications && actions_on_system) { DEBUG1("%f : Calling surf_solve", SIMIX_get_clock()); elapsed_time = surf_solve(); DEBUG1("Elapsed_time %f", elapsed_time); } - while (surf_timer_model->extension_public->get(&fun, (void *) &arg)) { + actions_on_system = 0; + while (surf_timer_model->extension.timer.get(&fun, (void *) &arg)) { + /* change in process, don't quit */ + actions_on_system = 1; DEBUG2("got %p %p", fun, arg); if (fun == SIMIX_process_create) { - smx_process_arg_t args = arg; - DEBUG2("Launching %s on %s", args->name, args->hostname); - process = SIMIX_process_create(args->name, args->code, - args->data, args->hostname, - args->argc, args->argv, args->properties); - if (args->kill_time > SIMIX_get_clock()) { - surf_timer_model->extension_public->set(args->kill_time, - (void *) - &SIMIX_process_kill, - (void *) process); - } - xbt_free(args); - } - if (fun == SIMIX_process_kill) { - process = arg; - DEBUG2("Killing %s on %s", process->name, - process->simdata->smx_host->name); - SIMIX_process_kill(process); + smx_process_arg_t args = arg; + DEBUG2("Launching %s on %s", args->name, args->hostname); + process = SIMIX_process_create(args->name, args->code, + args->data, args->hostname, + args->argc, args->argv, + args->properties); + /* verify if process has been created */ + if (!process) { + xbt_free(args); + continue; + } + + if (args->kill_time > SIMIX_get_clock()) { + surf_timer_model->extension.timer.set(args->kill_time, (void *) + &SIMIX_process_kill, + (void *) process); + } + xbt_free(args); + } else if (fun == simix_global->create_process_function) { + smx_process_arg_t args = arg; + DEBUG2("Launching %s on %s", args->name, args->hostname); + process = + (*simix_global->create_process_function) (args->name, + args->code, + args->data, + args->hostname, + args->argc, + args->argv, + args->properties); + /* verify if process has been created */ + if (!process) { + xbt_free(args); + continue; + } + if (args->kill_time > SIMIX_get_clock()) { + if (simix_global->kill_process_function) + surf_timer_model->extension.timer.set(args->kill_time, (void *) + simix_global-> + kill_process_function, + process); + else + surf_timer_model->extension.timer.set(args->kill_time, (void *) + &SIMIX_process_kill, + (void *) process); + } + xbt_free(args); + } else if (fun == SIMIX_process_kill) { + process = arg; + DEBUG2("Killing %s on %s", process->name, process->smx_host->name); + SIMIX_process_kill(process); + } else if (fun == simix_global->kill_process_function) { + process = arg; + (*simix_global->kill_process_function) (process); + } else { + THROW_IMPOSSIBLE; } } /* Wake up all process waiting for the action finish */ xbt_dynar_foreach(model_list, iter, model) { - while ((action = - xbt_swag_extract(model->common_public->states. - failed_action_set))) { - smx_action = action->data; - if (smx_action) { - xbt_fifo_unshift(actions_failed, smx_action); - } + /* stop simulation case there are no actions to run */ + if ((xbt_swag_size(model->states.running_action_set)) || + (xbt_swag_size(model->states.ready_action_set)) || + (xbt_swag_size(model->states.done_action_set)) || + (xbt_swag_size(model->states.failed_action_set))) + actions_on_system = 1; + + while ((action = xbt_swag_extract(model->states.failed_action_set))) { + smx_action = action->data; + if (smx_action) { + SIMIX_action_signal_all(smx_action); + } } - while ((action = - xbt_swag_extract(model->common_public->states. - done_action_set))) { - smx_action = action->data; - if (smx_action) { - xbt_fifo_unshift(actions_done, smx_action); - } + while ((action = xbt_swag_extract(model->states.done_action_set))) { + smx_action = action->data; + if (smx_action) { + SIMIX_action_signal_all(smx_action); + } } } } state_modifications = 0; + if (!actions_on_system) + elapsed_time = -1; if (elapsed_time == -1) { if (xbt_swag_size(simix_global->process_list) == 0) { @@ -422,9 +456,9 @@ double SIMIX_solve(xbt_fifo_t actions_done, xbt_fifo_t actions_failed) INFO0("Oops ! Deadlock or code not perfectly clean."); SIMIX_display_process_status(); if (XBT_LOG_ISENABLED(simix, xbt_log_priority_debug) || - XBT_LOG_ISENABLED(simix_kernel, xbt_log_priority_debug)) { - DEBUG0("Aborting!"); - xbt_abort(); + XBT_LOG_ISENABLED(simix_kernel, xbt_log_priority_debug)) { + DEBUG0("Aborting!"); + xbt_abort(); } INFO0("Return a Warning."); } @@ -441,14 +475,14 @@ double SIMIX_solve(xbt_fifo_t actions_done, xbt_fifo_t actions_failed) * \param arg Parameters of the function * */ -void SIMIX_timer_set(double date, void *function, void *arg) +XBT_INLINE void SIMIX_timer_set(double date, void *function, void *arg) { - surf_timer_model->extension_public->set(date, function, arg); + surf_timer_model->extension.timer.set(date, function, arg); } -int SIMIX_timer_get(void **function, void **arg) +XBT_INLINE int SIMIX_timer_get(void **function, void **arg) { - return surf_timer_model->extension_public->get(function, arg); + return surf_timer_model->extension.timer.get(function, arg); } /** @@ -458,10 +492,11 @@ int SIMIX_timer_get(void **function, void **arg) * \param function Create process function * */ -void SIMIX_function_register_process_create(smx_creation_func_t function) +XBT_INLINE void SIMIX_function_register_process_create(smx_creation_func_t + function) { xbt_assert0((simix_global->create_process_function == NULL), - "Data already set"); + "Data already set"); simix_global->create_process_function = function; } @@ -473,10 +508,11 @@ void SIMIX_function_register_process_create(smx_creation_func_t function) * \param function Kill process function * */ -void SIMIX_function_register_process_kill(void_f_pvoid_t function) +XBT_INLINE void SIMIX_function_register_process_kill(void_f_pvoid_t + function) { xbt_assert0((simix_global->kill_process_function == NULL), - "Data already set"); + "Data already set"); simix_global->kill_process_function = function; } @@ -488,7 +524,8 @@ void SIMIX_function_register_process_kill(void_f_pvoid_t function) * \param function cleanup process function * */ -void SIMIX_function_register_process_cleanup(void_f_pvoid_t function) +XBT_INLINE void SIMIX_function_register_process_cleanup(void_f_pvoid_t + function) { simix_global->cleanup_process_function = function; }