X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6a9d0cb70ec8497d66b6e7f95f2a08b5a2cf8da9..cfcc26205c43c7ee01341db3d2910f5efbd2fa6b:/src/simix/smx_process.c diff --git a/src/simix/smx_process.c b/src/simix/smx_process.c index aa1378ae3a..a25b215d55 100644 --- a/src/simix/smx_process.c +++ b/src/simix/smx_process.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team. +/* Copyright (c) 2007-2012. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -118,6 +118,8 @@ void SIMIX_process_empty_trash(void) xbt_fifo_free(process->comms); + xbt_dynar_free(&process->on_exit); + free(process->name); free(process); } @@ -142,9 +144,34 @@ void SIMIX_create_maestro_process() simix_global->maestro_process = maestro; return; } +/** + * \brief Stops a process. + * + * Stops the process, execute all the registered on_exit functions, + * register it to the list of the process to restart if needed + * and stops its context. + */ +void SIMIX_process_stop(smx_process_t arg) { + /* execute the on_exit functions */ + SIMIX_process_on_exit_runall(arg); + /* Add the process to the list of process to restart, only if + * the host is down + */ + if (arg->auto_restart && !SIMIX_host_get_state(arg->smx_host)) { + SIMIX_host_add_auto_restart_process(arg->smx_host,arg->name,arg->code, arg->data, + arg->smx_host->name, + arg->kill_time, + arg->argc,arg->argv,arg->properties, + arg->auto_restart); + } + XBT_DEBUG("Process %s (%s) is dead",arg->name,arg->smx_host->name); + /* stop the context */ + SIMIX_context_stop(arg->context); +} /** * \brief Same as SIMIX_process_create() but with only one argument (used by timers). + * This function frees the argument. * \return the process created */ smx_process_t SIMIX_process_create_from_wrapper(smx_process_arg_t args) { @@ -159,8 +186,9 @@ smx_process_t SIMIX_process_create_from_wrapper(smx_process_arg_t args) { args->kill_time, args->argc, args->argv, - args->properties); - + args->properties, + args->auto_restart); + xbt_free(args); return process; } @@ -180,7 +208,8 @@ void SIMIX_process_create(smx_process_t *process, const char *hostname, double kill_time, int argc, char **argv, - xbt_dict_t properties) { + xbt_dict_t properties, + int auto_restart) { *process = NULL; smx_host_t host = SIMIX_host_get_by_name(hostname); @@ -195,7 +224,6 @@ void SIMIX_process_create(smx_process_t *process, *process = xbt_new0(s_smx_process_t, 1); xbt_assert(((code != NULL) && (host != NULL)), "Invalid parameters"); - /* Process data */ (*process)->pid = simix_process_maxpid++; (*process)->name = xbt_strdup(name); @@ -203,10 +231,17 @@ void SIMIX_process_create(smx_process_t *process, (*process)->data = data; (*process)->comms = xbt_fifo_new(); (*process)->simcall.issuer = *process; + /* Process data for auto-restart */ + (*process)->auto_restart = auto_restart; + (*process)->code = code; + (*process)->argc = argc; + (*process)->argv = argv; + (*process)->kill_time = kill_time; + XBT_VERB("Create context %s", (*process)->name); (*process)->context = SIMIX_context_new(code, argc, argv, - simix_global->cleanup_process_function, *process); + simix_global->cleanup_process_function, *process); (*process)->running_ctx = xbt_new(xbt_running_ctx_t, 1); XBT_RUNNING_CTX_INITIALIZE((*process)->running_ctx); @@ -260,8 +295,9 @@ void SIMIX_process_runall(void) * or directly for SIMIX internal purposes. * * \param process poor victim + * \param issuer the process which has sent the PROCESS_KILL. Important to not schedule twice the same process. */ -void SIMIX_process_kill(smx_process_t process) { +void SIMIX_process_kill(smx_process_t process, smx_process_t issuer) { XBT_DEBUG("Killing process %s on %s", process->name, process->smx_host->name); @@ -285,22 +321,32 @@ void SIMIX_process_kill(smx_process_t process) { SIMIX_comm_destroy(process->waiting_action); break; - case SIMIX_ACTION_SLEEP: - SIMIX_process_sleep_destroy(process->waiting_action); - break; + case SIMIX_ACTION_SLEEP: + SIMIX_process_sleep_destroy(process->waiting_action); + break; - case SIMIX_ACTION_SYNCHRO: - SIMIX_synchro_stop_waiting(process, &process->simcall); - SIMIX_synchro_destroy(process->waiting_action); - break; + case SIMIX_ACTION_SYNCHRO: + SIMIX_synchro_stop_waiting(process, &process->simcall); + SIMIX_synchro_destroy(process->waiting_action); + break; + + case SIMIX_ACTION_IO: + SIMIX_io_destroy(process->waiting_action); + break; + + /* **************************************/ + /* TUTORIAL: New API */ + case SIMIX_ACTION_NEW_API: + SIMIX_new_api_destroy(process->waiting_action); + break; + /* **************************************/ - case SIMIX_ACTION_IO: - SIMIX_io_destroy(process->waiting_action); - break; } } - if(!xbt_dynar_member(simix_global->process_to_run, &(process))) + if(!xbt_dynar_member(simix_global->process_to_run, &(process)) && process != issuer) { xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, process); + } + } /** @@ -313,7 +359,7 @@ void SIMIX_process_killall(smx_process_t issuer) while ((p = xbt_swag_extract(simix_global->process_list))) { if (p != issuer) { - SIMIX_process_kill(p); + SIMIX_process_kill(p,issuer); } } @@ -323,7 +369,7 @@ void SIMIX_process_killall(smx_process_t issuer) } void SIMIX_process_change_host(smx_process_t process, - smx_host_t dest) + smx_host_t dest) { xbt_assert((process != NULL), "Invalid parameters"); xbt_swag_remove(process, process->smx_host->process_list); @@ -582,7 +628,8 @@ void SIMIX_post_process_sleep(smx_action_t action) switch(surf_workstation_model->action_state_get(action->sleep.surf_sleep)){ case SURF_ACTION_FAILED: - state = SIMIX_SRC_HOST_FAILURE; + simcall->issuer->context->iwannadie = 1; + //SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed"); break; case SURF_ACTION_DONE: @@ -593,9 +640,14 @@ void SIMIX_post_process_sleep(smx_action_t action) THROW_IMPOSSIBLE; break; } + if (surf_workstation_model->extension. + workstation.get_state(simcall->issuer->smx_host->host) != SURF_RESOURCE_ON) { + simcall->issuer->context->iwannadie = 1; + } simcall->process_sleep.result = state; simcall->issuer->waiting_action = NULL; SIMIX_simcall_answer(simcall); + } SIMIX_process_sleep_destroy(action); } @@ -636,9 +688,14 @@ void SIMIX_process_yield(smx_process_t self) /* Ok, maestro returned control to us */ XBT_DEBUG("Control returned to me: '%s'", self->name); + if (self->new_host) { + SIMIX_process_change_host(self, self->new_host); + self->new_host = NULL; + } + if (self->context->iwannadie){ XBT_DEBUG("I wanna die!"); - SIMIX_context_stop(self->context); + SIMIX_process_stop(self); } if(self->suspended) { @@ -652,11 +709,6 @@ void SIMIX_process_yield(smx_process_t self) self->doexception = 0; SMX_THROW(); } - - if (self->new_host) { - SIMIX_process_change_host(self, self->new_host); - self->new_host = NULL; - } } /* callback: context fetching */ @@ -669,7 +721,7 @@ xbt_running_ctx_t *SIMIX_process_get_running_context(void) void SIMIX_process_exception_terminate(xbt_ex_t * e) { xbt_ex_display(e); - abort(); + xbt_abort(); } smx_context_t SIMIX_process_get_context(smx_process_t p) { @@ -693,13 +745,13 @@ xbt_dynar_t SIMIX_process_get_runnable(void) */ smx_process_t SIMIX_process_from_PID(int PID) { - smx_process_t proc; - xbt_swag_foreach(proc, simix_global->process_list) - { - if(proc->pid == PID) - return proc; - } - return NULL; + smx_process_t proc; + xbt_swag_foreach(proc, simix_global->process_list) + { + if(proc->pid == PID) + return proc; + } + return NULL; } /** @brief returns a dynar containg all currently existing processes */ @@ -711,3 +763,83 @@ xbt_dynar_t SIMIX_processes_as_dynar(void) { } return res; } +void SIMIX_process_on_exit_runall(smx_process_t process) { + s_smx_process_exit_fun_t exit_fun; + + while (!xbt_dynar_is_empty(process->on_exit)) { + exit_fun = xbt_dynar_pop_as(process->on_exit,s_smx_process_exit_fun_t); + (exit_fun.fun)(exit_fun.arg); + } +} +void SIMIX_process_on_exit(smx_process_t process, int_f_pvoid_t fun, void *data) { + xbt_assert(process, "current process not found: are you in maestro context ?"); + + if (!process->on_exit) { + process->on_exit = xbt_dynar_new(sizeof(s_smx_process_exit_fun_t), NULL); + } + + s_smx_process_exit_fun_t exit_fun = {fun, data}; + + xbt_dynar_push_as(process->on_exit,s_smx_process_exit_fun_t,exit_fun); +} +/** + * \brief Sets the auto-restart status of the process. + * If set to 1, the process will be automatically restarted when its host + * comes back. + */ +void SIMIX_process_auto_restart_set(smx_process_t process, int auto_restart) { + process->auto_restart = auto_restart; +} +/** + * \brief Restart a process. + * Restart a process, starting it again from the beginning. + */ +smx_process_t SIMIX_process_restart(smx_process_t process, smx_process_t issuer) { + XBT_DEBUG("Restarting process %s on %s", process->name, process->smx_host->name); + //retrieve the arguments of the old process + //FIXME: Factorise this with SIMIX_host_add_auto_restart_process ? + s_smx_process_arg_t arg; + arg.code = process->code; + arg.hostname = process->smx_host->name; + arg.kill_time = process->kill_time; + arg.argc = process->argc; + arg.data = process->data; + int i; + arg.argv = xbt_new(char*,process->argc + 1); + for (i = 0; i < arg.argc; i++) { + arg.argv[i] = xbt_strdup(process->argv[i]); + } + arg.argv[process->argc] = NULL; + arg.properties = NULL; + arg.auto_restart = process->auto_restart; + //kill the old process + SIMIX_process_kill(process,issuer); + //start the new process + smx_process_t new_process; + if (simix_global->create_process_function) { + simix_global->create_process_function(&new_process, + arg.argv[0], + arg.code, + arg.data, + arg.hostname, + arg.kill_time, + arg.argc, + arg.argv, + arg.properties, + arg.auto_restart); + } + else { + simcall_process_create(&new_process, + arg.argv[0], + arg.code, + arg.data, + arg.hostname, + arg.kill_time, + arg.argc, + arg.argv, + arg.properties, + arg.auto_restart); + + } + return new_process; +}