+++ /dev/null
-/* 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 "smx_private.h"
-#include "xbt/sysdep.h"
-#include "xbt/log.h"
-#include "xbt/dict.h"
-#include "mc/mc.h"
-#include "src/mc/mc_replay.h"
-#include "src/mc/mc_client.h"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_process, simix,
- "Logging specific to SIMIX (process)");
-
-unsigned long simix_process_maxpid = 0;
-
-/**
- * \brief Returns the current agent.
- *
- * This functions returns the currently running SIMIX process.
- *
- * \return The SIMIX process
- */
-XBT_INLINE smx_process_t SIMIX_process_self(void)
-{
- smx_context_t self_context = SIMIX_context_self();
-
- return self_context ? SIMIX_context_get_process(self_context) : NULL;
-}
-
-/**
- * \brief Returns whether a process has pending asynchronous communications.
- * \return true if there are asynchronous communications in this process
- */
-int SIMIX_process_has_pending_comms(smx_process_t process) {
-
- return xbt_fifo_size(process->comms) > 0;
-}
-
-/**
- * \brief Moves a process to the list of processes to destroy.
- */
-void SIMIX_process_cleanup(smx_process_t process)
-{
- XBT_DEBUG("Cleanup process %s (%p), waiting synchro %p",
- process->name, process, process->waiting_synchro);
-
- SIMIX_process_on_exit_runall(process);
-
- /* Unregister from the kill timer if any */
- if (process->kill_timer != NULL)
- SIMIX_timer_remove(process->kill_timer);
-
- xbt_os_mutex_acquire(simix_global->mutex);
-
- /* cancel non-blocking communications */
- smx_synchro_t synchro;
- while ((synchro = xbt_fifo_pop(process->comms))) {
-
- /* make sure no one will finish the comm after this process is destroyed,
- * because src_proc or dst_proc would be an invalid pointer */
- SIMIX_comm_cancel(synchro);
-
- if (synchro->comm.src_proc == process) {
- XBT_DEBUG("Found an unfinished send comm %p (detached = %d), state %d, src = %p, dst = %p",
- synchro, synchro->comm.detached, (int)synchro->state, synchro->comm.src_proc, synchro->comm.dst_proc);
- synchro->comm.src_proc = NULL;
-
- /* I'm not supposed to destroy a detached comm from the sender side, */
- if (!synchro->comm.detached)
- SIMIX_comm_destroy(synchro);
- else
- XBT_DEBUG("Don't destroy it since it's a detached comm");
-
- }
- else if (synchro->comm.dst_proc == process){
- XBT_DEBUG("Found an unfinished recv comm %p, state %d, src = %p, dst = %p",
- synchro, (int)synchro->state, synchro->comm.src_proc, synchro->comm.dst_proc);
- synchro->comm.dst_proc = NULL;
-
- if (synchro->comm.detached && synchro->comm.refcount == 1
- && synchro->comm.src_proc != NULL) {
- /* the comm will be freed right now, remove it from the sender */
- xbt_fifo_remove(synchro->comm.src_proc->comms, synchro);
- }
- SIMIX_comm_destroy(synchro);
- }
- else {
- xbt_die("Communication synchro %p is in my list but I'm not the sender "
- "or the receiver", synchro);
- }
- }
-
- XBT_DEBUG("%p should not be run anymore",process);
- xbt_swag_remove(process, simix_global->process_list);
- xbt_swag_remove(process, sg_host_simix(process->host)->process_list);
- xbt_swag_insert(process, simix_global->process_to_destroy);
- process->context->iwannadie = 0;
-
- xbt_os_mutex_release(simix_global->mutex);
-}
-
-/**
- * Garbage collection
- *
- * Should be called some time to time to free the memory allocated for processes
- * that have finished (or killed).
- */
-void SIMIX_process_empty_trash(void)
-{
- smx_process_t process = NULL;
-
- while ((process = xbt_swag_extract(simix_global->process_to_destroy))) {
- XBT_DEBUG("Getting rid of %p",process);
-
- SIMIX_context_free(process->context);
-
- /* Free the exception allocated at creation time */
- free(process->running_ctx);
- xbt_dict_free(&process->properties);
-
- xbt_fifo_free(process->comms);
-
- xbt_dynar_free(&process->on_exit);
-
- xbt_free(process->name);
- xbt_free(process);
- }
-}
-
-/**
- * \brief Creates and runs the maestro process
- */
-void SIMIX_create_maestro_process()
-{
- smx_process_t maestro = NULL;
-
- /* Create maestro process and intilialize it */
- maestro = xbt_new0(s_smx_process_t, 1);
- maestro->pid = simix_process_maxpid++;
- maestro->ppid = -1;
- maestro->name = (char *) "";
- maestro->running_ctx = xbt_new(xbt_running_ctx_t, 1);
- XBT_RUNNING_CTX_INITIALIZE(maestro->running_ctx);
- maestro->context = SIMIX_context_new(NULL, 0, NULL, NULL, maestro);
- maestro->simcall.issuer = maestro;
- 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 && !sg_host_get_state(arg->host)) {
- SIMIX_host_add_auto_restart_process(arg->host,arg->name,arg->code, arg->data,
- sg_host_get_name(arg->host),
- SIMIX_timer_get_date(arg->kill_timer),
- arg->argc,arg->argv,arg->properties,
- arg->auto_restart);
- }
- XBT_DEBUG("Process %s (%s) is dead",arg->name,sg_host_get_name(arg->host));
- /* 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) {
-
- smx_process_t process = simix_global->create_process_function(
- args->name,
- args->code,
- args->data,
- args->hostname,
- args->kill_time,
- args->argc,
- args->argv,
- args->properties,
- args->auto_restart,
- NULL);
- xbt_free(args);
- return process;
-}
-
-
-void* simcall_HANDLER_process_create(smx_simcall_t simcall,
- const char *name,
- xbt_main_func_t code,
- void *data,
- const char *hostname,
- double kill_time,
- int argc, char **argv,
- xbt_dict_t properties,
- int auto_restart){
- return (void*)SIMIX_process_create(name, code, data, hostname,
- kill_time, argc, argv, properties, auto_restart,
- simcall->issuer);
-}
-
-static void kill_process(void* process)
-{
- return simix_global->kill_process_function(process);
-}
-
-/**
- * \brief Internal function to create a process.
- *
- * This function actually creates the process.
- * It may be called when a SIMCALL_PROCESS_CREATE simcall occurs,
- * or directly for SIMIX internal purposes. The sure thing is that it's called from maestro context.
- *
- * \return the process created
- */
-smx_process_t SIMIX_process_create(
- const char *name,
- xbt_main_func_t code,
- void *data,
- const char *hostname,
- double kill_time,
- int argc, char **argv,
- xbt_dict_t properties,
- int auto_restart,
- smx_process_t parent_process)
-{
- smx_process_t process = NULL;
- sg_host_t host = sg_host_by_name(hostname);
-
- XBT_DEBUG("Start process %s on host '%s'", name, hostname);
-
- if (!sg_host_get_state(host)) {
- int i;
- XBT_WARN("Cannot launch process '%s' on failed host '%s'", name,
- hostname);
- for (i = 0; i < argc; i++)
- xbt_free(argv[i]);
- xbt_free(argv);
- }
- else {
- 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);
- process->host = host;
- process->data = data;
- process->comms = xbt_fifo_new();
- process->simcall.issuer = process;
-
- if (parent_process) {
- process->ppid = SIMIX_process_get_PID(parent_process);
- } else {
- process->ppid = -1;
- }
-
- /* Process data for auto-restart */
- process->auto_restart = auto_restart;
- process->code = code;
- process->argc = argc;
- process->argv = argv;
-
-
- XBT_VERB("Create context %s", process->name);
- process->context = SIMIX_context_new(code, argc, argv, simix_global->cleanup_process_function, process);
-
- process->running_ctx = xbt_new(xbt_running_ctx_t, 1);
- XBT_RUNNING_CTX_INITIALIZE(process->running_ctx);
-
- if(MC_is_active()){
- MC_ignore_heap(process->running_ctx, sizeof(*process->running_ctx));
- }
-
- /* Add properties */
- process->properties = properties;
-
- /* Add the process to it's host process list */
- xbt_swag_insert(process, sg_host_simix(host)->process_list);
-
- XBT_DEBUG("Start context '%s'", process->name);
-
- /* Now insert it in the global process list and in the process to run list */
- xbt_swag_insert(process, simix_global->process_list);
- XBT_DEBUG("Inserting %s(%s) in the to_run list", process->name, sg_host_get_name(host));
- xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, process);
-
- if (kill_time > SIMIX_get_clock() && simix_global->kill_process_function) {
- XBT_DEBUG("Process %s(%s) will be kill at time %f", process->name,
- sg_host_get_name(process->host), kill_time);
- process->kill_timer = SIMIX_timer_set(kill_time, kill_process, process);
- }
- }
- return process;
-}
-
-/**
- * \brief Executes the processes from simix_global->process_to_run.
- *
- * The processes of simix_global->process_to_run are run (in parallel if
- * possible). On exit, simix_global->process_to_run is empty, and
- * simix_global->process_that_ran contains the list of processes that just ran.
- * The two lists are swapped so, be careful when using them before and after a
- * call to this function.
- */
-void SIMIX_process_runall(void)
-{
- SIMIX_context_runall();
-
- xbt_dynar_t tmp = simix_global->process_that_ran;
- simix_global->process_that_ran = simix_global->process_to_run;
- simix_global->process_to_run = tmp;
- xbt_dynar_reset(simix_global->process_to_run);
-}
-
-void simcall_HANDLER_process_kill(smx_simcall_t simcall, smx_process_t process) {
- SIMIX_process_kill(process, simcall->issuer);
-}
-/**
- * \brief Internal function to kill a SIMIX process.
- *
- * This function may be called when a SIMCALL_PROCESS_KILL simcall occurs,
- * 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, smx_process_t issuer) {
-
- XBT_DEBUG("Killing process %s on %s", process->name, sg_host_get_name(process->host));
-
- process->context->iwannadie = 1;
- process->blocked = 0;
- process->suspended = 0;
- process->doexception = 0;
-
- /* destroy the blocking synchro if any */
- if (process->waiting_synchro) {
-
- switch (process->waiting_synchro->type) {
-
- case SIMIX_SYNC_EXECUTE:
- case SIMIX_SYNC_PARALLEL_EXECUTE:
- SIMIX_process_execution_destroy(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_COMMUNICATE:
- xbt_fifo_remove(process->comms, process->waiting_synchro);
- SIMIX_comm_cancel(process->waiting_synchro);
- xbt_fifo_remove(process->waiting_synchro->simcalls, &process->simcall);
- SIMIX_comm_destroy(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_SLEEP:
- SIMIX_process_sleep_destroy(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_JOIN:
- SIMIX_process_sleep_destroy(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_SYNCHRO:
- SIMIX_synchro_stop_waiting(process, &process->simcall);
- SIMIX_synchro_destroy(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_IO:
- SIMIX_io_destroy(process->waiting_synchro);
- break;
-
- }
-
- process->waiting_synchro = NULL;
- }
- if(!xbt_dynar_member(simix_global->process_to_run, &(process)) && process != issuer) {
- XBT_DEBUG("Inserting %s in the to_run list", process->name);
- xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, process);
- }
-
-}
-
-/** @brief Ask another process to raise the given exception
- *
- * @param cat category of exception
- * @param value value associated to the exception
- * @param msg string information associated to the exception
- */
-void SIMIX_process_throw(smx_process_t process, xbt_errcat_t cat, int value, const char *msg) {
- SMX_EXCEPTION(process, cat, value, msg);
-
- if (process->suspended)
- SIMIX_process_resume(process,SIMIX_process_self());
-
- /* cancel the blocking synchro if any */
- if (process->waiting_synchro) {
-
- switch (process->waiting_synchro->type) {
-
- case SIMIX_SYNC_EXECUTE:
- case SIMIX_SYNC_PARALLEL_EXECUTE:
- SIMIX_process_execution_cancel(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_COMMUNICATE:
- xbt_fifo_remove(process->comms, process->waiting_synchro);
- SIMIX_comm_cancel(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_SLEEP:
- case SIMIX_SYNC_JOIN:
- SIMIX_process_sleep_destroy(process->waiting_synchro);
- if (!xbt_dynar_member(simix_global->process_to_run, &(process)) && process != SIMIX_process_self()) {
- XBT_DEBUG("Inserting %s in the to_run list", process->name);
- xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, process);
- }
- break;
-
- case SIMIX_SYNC_SYNCHRO:
- SIMIX_synchro_stop_waiting(process, &process->simcall);
- break;
-
- case SIMIX_SYNC_IO:
- SIMIX_io_destroy(process->waiting_synchro);
- break;
-
- }
- }
- process->waiting_synchro = NULL;
-
-}
-
-void simcall_HANDLER_process_killall(smx_simcall_t simcall, int reset_pid) {
- SIMIX_process_killall(simcall->issuer, reset_pid);
-}
-/**
- * \brief Kills all running processes.
- * \param issuer this one will not be killed
- */
-void SIMIX_process_killall(smx_process_t issuer, int reset_pid)
-{
- smx_process_t p = NULL;
-
- while ((p = xbt_swag_extract(simix_global->process_list))) {
- if (p != issuer) {
- SIMIX_process_kill(p,issuer);
- }
- }
-
- if (reset_pid > 0)
- simix_process_maxpid = reset_pid;
-
- SIMIX_context_runall();
-
- SIMIX_process_empty_trash();
-}
-
-void simcall_HANDLER_process_set_host(smx_simcall_t simcall, smx_process_t process, sg_host_t dest)
-{
- process->new_host = dest;
-}
-void SIMIX_process_change_host(smx_process_t process,
- sg_host_t dest)
-{
- xbt_assert((process != NULL), "Invalid parameters");
- xbt_swag_remove(process, sg_host_simix(process->host)->process_list);
- process->host = dest;
- xbt_swag_insert(process, sg_host_simix(dest)->process_list);
-}
-
-
-void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_process_t process)
-{
- smx_synchro_t sync_suspend =
- SIMIX_process_suspend(process, simcall->issuer);
-
- if (process != simcall->issuer) {
- SIMIX_simcall_answer(simcall);
- } else {
- xbt_fifo_push(sync_suspend->simcalls, simcall);
- process->waiting_synchro = sync_suspend;
- SIMIX_host_execution_suspend(process->waiting_synchro);
- }
- /* If we are suspending ourselves, then just do not finish the simcall now */
-}
-
-smx_synchro_t SIMIX_process_suspend(smx_process_t process, smx_process_t issuer)
-{
- xbt_assert((process != NULL), "Invalid parameters");
-
- if (process->suspended) {
- XBT_DEBUG("Process '%s' is already suspended", process->name);
- return NULL;
- }
-
- process->suspended = 1;
-
- /* If we are suspending another process, and it is waiting on a sync,
- suspend its synchronization. */
- if (process != issuer) {
-
- if (process->waiting_synchro) {
-
- switch (process->waiting_synchro->type) {
-
- case SIMIX_SYNC_EXECUTE:
- case SIMIX_SYNC_PARALLEL_EXECUTE:
- SIMIX_host_execution_suspend(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_COMMUNICATE:
- SIMIX_comm_suspend(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_SLEEP:
- SIMIX_process_sleep_suspend(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_SYNCHRO:
- /* Suspension is delayed to when the process is rescheduled. */
- break;
-
- default:
- xbt_die("Internal error in SIMIX_process_suspend: unexpected synchronization type %d",
- (int)process->waiting_synchro->type);
- }
- return NULL;
- } else {
- /* Suspension is delayed to when the process is rescheduled. */
- return NULL;
- }
- } else {
- /* FIXME: computation size is zero. Is it okay that bound is zero ? */
- return SIMIX_process_execute(process, "suspend", 0.0, 1.0, 0.0, 0);
- }
-}
-
-void simcall_HANDLER_process_resume(smx_simcall_t simcall, smx_process_t process){
- SIMIX_process_resume(process, simcall->issuer);
-}
-
-void SIMIX_process_resume(smx_process_t process, smx_process_t issuer)
-{
- XBT_IN("process = %p, issuer = %p", process, issuer);
-
- if(process->context->iwannadie) {
- XBT_VERB("Ignoring request to suspend a process that is currently dying.");
- return;
- }
-
- if(!process->suspended) return;
- process->suspended = 0;
-
- /* If we are resuming another process, resume the synchronization it was waiting for
- if any. Otherwise add it to the list of process to run in the next round. */
- if (process != issuer) {
-
- if (process->waiting_synchro) {
-
- switch (process->waiting_synchro->type) {
-
- case SIMIX_SYNC_EXECUTE:
- case SIMIX_SYNC_PARALLEL_EXECUTE:
- SIMIX_host_execution_resume(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_COMMUNICATE:
- SIMIX_comm_resume(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_SLEEP:
- SIMIX_process_sleep_resume(process->waiting_synchro);
- break;
-
- case SIMIX_SYNC_SYNCHRO:
- /* I cannot resume it now. This is delayed to when the process is rescheduled at
- * the end of the synchro. */
- break;
-
- default:
- xbt_die("Internal error in SIMIX_process_resume: unexpected synchronization type %d",
- (int)process->waiting_synchro->type);
- }
- }
- } else XBT_WARN("Strange. Process %p is trying to resume himself.", issuer);
-
- XBT_OUT();
-}
-
-int SIMIX_process_get_maxpid(void) {
- return simix_process_maxpid;
-}
-
-int SIMIX_process_count(void)
-{
- return xbt_swag_size(simix_global->process_list);
-}
-
-int SIMIX_process_get_PID(smx_process_t self){
- if (self == NULL)
- return 0;
- else
- return self->pid;
-}
-
-int SIMIX_process_get_PPID(smx_process_t self){
- if (self == NULL)
- return 0;
- else
- return self->ppid;
-}
-
-void* SIMIX_process_self_get_data(smx_process_t self)
-{
- xbt_assert(self == SIMIX_process_self(), "This is not the current process");
-
- if (!self) {
- return NULL;
- }
- return SIMIX_process_get_data(self);
-}
-
-void SIMIX_process_self_set_data(smx_process_t self, void *data)
-{
- xbt_assert(self == SIMIX_process_self(), "This is not the current process");
-
- SIMIX_process_set_data(self, data);
-}
-
-void* SIMIX_process_get_data(smx_process_t process)
-{
- return process->data;
-}
-
-void SIMIX_process_set_data(smx_process_t process, void *data)
-{
- process->data = data;
-}
-
-sg_host_t SIMIX_process_get_host(smx_process_t process)
-{
- return process->host;
-}
-
-/* needs to be public and without simcall because it is called
- by exceptions and logging events */
-const char* SIMIX_process_self_get_name(void) {
-
- smx_process_t process = SIMIX_process_self();
- if (process == NULL || process == simix_global->maestro_process)
- return "";
-
- return SIMIX_process_get_name(process);
-}
-
-const char* SIMIX_process_get_name(smx_process_t process)
-{
- return process->name;
-}
-
-smx_process_t SIMIX_process_get_by_name(const char* name)
-{
- smx_process_t proc;
-
- xbt_swag_foreach(proc, simix_global->process_list)
- {
- if(!strcmp(name, proc->name))
- return proc;
- }
- return NULL;
-}
-
-int SIMIX_process_is_suspended(smx_process_t process)
-{
- return process->suspended;
-}
-
-xbt_dict_t SIMIX_process_get_properties(smx_process_t process)
-{
- return process->properties;
-}
-
-void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_process_t process, double timeout)
-{
- smx_synchro_t sync = SIMIX_process_join(simcall->issuer, process, timeout);
- xbt_fifo_push(sync->simcalls, simcall);
- simcall->issuer->waiting_synchro = sync;
-}
-
-static int SIMIX_process_join_finish(smx_process_exit_status_t status, smx_synchro_t sync){
- if (sync->sleep.surf_sleep) {
- surf_action_cancel(sync->sleep.surf_sleep);
-
- smx_simcall_t simcall;
- while ((simcall = xbt_fifo_shift(sync->simcalls))) {
- simcall_process_sleep__set__result(simcall, SIMIX_DONE);
- simcall->issuer->waiting_synchro = NULL;
- if (simcall->issuer->suspended) {
- XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
- simcall->issuer->suspended = 0;
- simcall_HANDLER_process_suspend(simcall, simcall->issuer);
- } else {
- SIMIX_simcall_answer(simcall);
- }
- }
- surf_action_unref(sync->sleep.surf_sleep);
- sync->sleep.surf_sleep = NULL;
- }
- xbt_mallocator_release(simix_global->synchro_mallocator, sync);
- return 0;
-}
-
-smx_synchro_t SIMIX_process_join(smx_process_t issuer, smx_process_t process, double timeout)
-{
- smx_synchro_t res = SIMIX_process_sleep(issuer, timeout);
- res->type = SIMIX_SYNC_JOIN;
- SIMIX_process_on_exit(process, (int_f_pvoid_pvoid_t)SIMIX_process_join_finish, res);
- return res;
-}
-
-void simcall_HANDLER_process_sleep(smx_simcall_t simcall, double duration)
-{
- if (MC_is_active() || MC_record_replay_is_active()) {
- MC_process_clock_add(simcall->issuer, duration);
- simcall_process_sleep__set__result(simcall, SIMIX_DONE);
- SIMIX_simcall_answer(simcall);
- return;
- }
- smx_synchro_t sync = SIMIX_process_sleep(simcall->issuer, duration);
- xbt_fifo_push(sync->simcalls, simcall);
- simcall->issuer->waiting_synchro = sync;
-}
-
-smx_synchro_t SIMIX_process_sleep(smx_process_t process, double duration)
-{
- smx_synchro_t synchro;
- sg_host_t host = process->host;
-
- /* check if the host is active */
- if (surf_host_get_state(surf_host_resource_priv(host)) != SURF_RESOURCE_ON) {
- THROWF(host_error, 0, "Host %s failed, you cannot call this function",
- sg_host_get_name(host));
- }
-
- synchro = xbt_mallocator_get(simix_global->synchro_mallocator);
- synchro->type = SIMIX_SYNC_SLEEP;
- synchro->name = NULL;
- synchro->category = NULL;
-
- synchro->sleep.host = host;
- synchro->sleep.surf_sleep = surf_host_sleep(host, duration);
-
- surf_action_set_data(synchro->sleep.surf_sleep, synchro);
- XBT_DEBUG("Create sleep synchronization %p", synchro);
-
- return synchro;
-}
-
-void SIMIX_post_process_sleep(smx_synchro_t synchro)
-{
- smx_simcall_t simcall;
- e_smx_state_t state;
- xbt_assert(synchro->type == SIMIX_SYNC_SLEEP || synchro->type == SIMIX_SYNC_JOIN);
-
- while ((simcall = xbt_fifo_shift(synchro->simcalls))) {
-
- switch(surf_action_get_state(synchro->sleep.surf_sleep)){
- case SURF_ACTION_FAILED:
- simcall->issuer->context->iwannadie = 1;
- //SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
- state = SIMIX_SRC_HOST_FAILURE;
- break;
-
- case SURF_ACTION_DONE:
- state = SIMIX_DONE;
- break;
-
- default:
- THROW_IMPOSSIBLE;
- break;
- }
- if (surf_host_get_state(surf_host_resource_priv(simcall->issuer->host)) != SURF_RESOURCE_ON) {
- simcall->issuer->context->iwannadie = 1;
- }
- simcall_process_sleep__set__result(simcall, state);
- simcall->issuer->waiting_synchro = NULL;
- if (simcall->issuer->suspended) {
- XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
- simcall->issuer->suspended = 0;
- simcall_HANDLER_process_suspend(simcall, simcall->issuer);
- } else {
- SIMIX_simcall_answer(simcall);
- }
- }
-
- SIMIX_process_sleep_destroy(synchro);
-}
-
-void SIMIX_process_sleep_destroy(smx_synchro_t synchro)
-{
- XBT_DEBUG("Destroy synchro %p", synchro);
- xbt_assert(synchro->type == SIMIX_SYNC_SLEEP || synchro->type == SIMIX_SYNC_JOIN);
-
- if (synchro->sleep.surf_sleep) {
- surf_action_unref(synchro->sleep.surf_sleep);
- synchro->sleep.surf_sleep = NULL;
- }
- if (synchro->type == SIMIX_SYNC_SLEEP)
- xbt_mallocator_release(simix_global->synchro_mallocator, synchro);
-}
-
-void SIMIX_process_sleep_suspend(smx_synchro_t synchro)
-{
- xbt_assert(synchro->type == SIMIX_SYNC_SLEEP);
- surf_action_suspend(synchro->sleep.surf_sleep);
-}
-
-void SIMIX_process_sleep_resume(smx_synchro_t synchro)
-{
- XBT_DEBUG("Synchro state is %d on process_sleep_resume.", synchro->state);
- xbt_assert(synchro->type == SIMIX_SYNC_SLEEP);
- surf_action_resume(synchro->sleep.surf_sleep);
-}
-
-/**
- * \brief Calling this function makes the process to yield.
- *
- * Only the current process can call this function, giving back the control to
- * maestro.
- *
- * \param self the current process
- */
-void SIMIX_process_yield(smx_process_t self)
-{
- XBT_DEBUG("Yield process '%s'", self->name);
-
- /* Go into sleep and return control to maestro */
- SIMIX_context_suspend(self->context);
-
- /* 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_process_stop(self);
- }
-
- if (self->suspended) {
- XBT_DEBUG("Hey! I'm suspended.");
- xbt_assert(!self->doexception, "Gasp! This exception may be lost by subsequent calls.");
- self->suspended = 0;
- SIMIX_process_suspend(self, self);
- }
-
- if (self->doexception) {
- XBT_DEBUG("Wait, maestro left me an exception");
- self->doexception = 0;
- SMX_THROW();
- }
-
-}
-
-/* callback: context fetching */
-xbt_running_ctx_t *SIMIX_process_get_running_context(void)
-{
- return SIMIX_process_self()->running_ctx;
-}
-
-/* callback: termination */
-void SIMIX_process_exception_terminate(xbt_ex_t * e)
-{
- xbt_ex_display(e);
- xbt_abort();
-}
-
-smx_context_t SIMIX_process_get_context(smx_process_t p) {
- return p->context;
-}
-
-void SIMIX_process_set_context(smx_process_t p,smx_context_t c) {
- p->context = c;
-}
-
-/**
- * \brief Returns the list of processes to run.
- */
-xbt_dynar_t SIMIX_process_get_runnable(void)
-{
- return simix_global->process_to_run;
-}
-
-/**
- * \brief Returns the process from PID.
- */
-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;
-}
-
-/** @brief returns a dynar containg all currently existing processes */
-xbt_dynar_t SIMIX_processes_as_dynar(void) {
- smx_process_t proc;
- xbt_dynar_t res = xbt_dynar_new(sizeof(smx_process_t),NULL);
- xbt_swag_foreach(proc, simix_global->process_list) {
- xbt_dynar_push(res,&proc);
- }
- return res;
-}
-
-
-void SIMIX_process_on_exit_runall(smx_process_t process) {
- s_smx_process_exit_fun_t exit_fun;
- smx_process_exit_status_t exit_status = (process->context->iwannadie) ?
- SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
- 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)((void*)exit_status, exit_fun.arg);
- }
-}
-
-void SIMIX_process_on_exit(smx_process_t process, int_f_pvoid_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;
-}
-
-smx_process_t simcall_HANDLER_process_restart(smx_simcall_t simcall, smx_process_t process) {
- return SIMIX_process_restart(process, simcall->issuer);
-}
-/** @brief 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, sg_host_get_name(process->host));
- //retrieve the arguments of the old process
- //FIXME: Factorize this with SIMIX_host_add_auto_restart_process ?
- s_smx_process_arg_t arg;
- arg.code = process->code;
- arg.hostname = sg_host_get_name(process->host);
- arg.kill_time = SIMIX_timer_get_date(process->kill_timer);
- 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) {
- new_process = simix_global->create_process_function(
- arg.argv[0],
- arg.code,
- arg.data,
- arg.hostname,
- arg.kill_time,
- arg.argc,
- arg.argv,
- arg.properties,
- arg.auto_restart,
- NULL);
- } else {
- new_process = simcall_process_create(
- arg.argv[0],
- arg.code,
- arg.data,
- arg.hostname,
- arg.kill_time,
- arg.argc,
- arg.argv,
- arg.properties,
- arg.auto_restart);
-
- }
- return new_process;
-}
