*/
int SIMIX_process_has_pending_comms(smx_actor_t process) {
- return xbt_fifo_size(process->comms) > 0;
+ return process->comms.size() > 0;
}
/**
xbt_os_mutex_acquire(simix_global->mutex);
/* cancel non-blocking communications */
- smx_activity_t synchro = static_cast<smx_activity_t>(xbt_fifo_pop(process->comms));
- while (synchro != nullptr) {
+ smx_activity_t synchro = static_cast<smx_activity_t>(process->comms.front());
+ while (!process->comms.empty()) {
simgrid::kernel::activity::Comm *comm = static_cast<simgrid::kernel::activity::Comm*>(synchro);
/* make sure no one will finish the comm after this process is destroyed,
if (comm->detached && comm->src_proc != nullptr) {
/* the comm will be freed right now, remove it from the sender */
- xbt_fifo_remove(comm->src_proc->comms, comm);
+ comm->src_proc->comms.remove(comm);
}
comm->unref();
} else {
xbt_die("Communication synchro %p is in my list but I'm not the sender nor the receiver", synchro);
}
- synchro = static_cast<smx_activity_t>(xbt_fifo_pop(process->comms));
+ process->comms.pop_front();
+ synchro = static_cast<smx_activity_t>(process->comms.front());
}
XBT_DEBUG("%p should not be run anymore",process);
simix_global->process_list.erase(process->pid);
if (process->host)
- xbt_swag_remove(process, sg_host_simix(process->host)->process_list);
+ xbt_swag_remove(process, process->host->extension<simgrid::simix::Host>()->process_list);
xbt_swag_insert(process, simix_global->process_to_destroy);
process->context->iwannadie = 0;
/**
* Garbage collection
*
- * Should be called some time to time to free the memory allocated for processes
- * that have finished (or killed).
+ * Should be called some time to time to free the memory allocated for processes that have finished (or killed).
*/
void SIMIX_process_empty_trash()
{
- smx_actor_t process = nullptr;
+ smx_actor_t process = static_cast<smx_actor_t>(xbt_swag_extract(simix_global->process_to_destroy));
- while ((process = (smx_actor_t) xbt_swag_extract(simix_global->process_to_destroy))) {
+ while (process) {
XBT_DEBUG("Getting rid of %p",process);
intrusive_ptr_release(process);
+ process = static_cast<smx_actor_t>(xbt_swag_extract(simix_global->process_to_destroy));
}
}
ActorImpl::~ActorImpl()
{
delete this->context;
- if (this->properties)
- xbt_dict_free(&this->properties);
- if (this->comms != nullptr)
- xbt_fifo_free(this->comms);
- if (this->on_exit)
- xbt_dynar_free(&this->on_exit);
+ xbt_dict_free(&this->properties);
+}
+
+static int dying_daemon(void* exit_status, void* data)
+{
+ std::vector<ActorImpl*>* vect = &simix_global->daemons;
+
+ auto it = std::find(vect->begin(), vect->end(), static_cast<ActorImpl*>(data));
+ xbt_assert(it != vect->end(), "The dying daemon is not a daemon after all. Please report that bug.");
+
+ /* Don't move the whole content since we don't really care about the order */
+ std::swap(*it, vect->back());
+ vect->pop_back();
+
+ return 0;
+}
+/** This process will be terminated automatically when the last non-daemon process finishes */
+void ActorImpl::daemonize()
+{
+ if (!daemon) {
+ daemon = true;
+ simix_global->daemons.push_back(this);
+ SIMIX_process_on_exit(this, dying_daemon, this);
+ }
+}
+
+/** Whether this process is daemonized */
+bool ActorImpl::isDaemon()
+{
+ return daemon;
}
void create_maestro(std::function<void()> code)
{
smx_actor_t maestro = nullptr;
- /* Create maestro process and intilialize it */
+ /* Create maestro process and initialize it */
maestro = new simgrid::simix::ActorImpl();
maestro->pid = simix_process_maxpid++;
- maestro->ppid = -1;
maestro->name = "";
maestro->data = nullptr;
std::function<void()> code,
void *data,
sg_host_t host,
- double kill_time,
xbt_dict_t properties,
- int auto_restart,
smx_actor_t parent_process)
{
- smx_actor_t process = nullptr;
XBT_DEBUG("Start process %s on host '%s'", name, host->cname());
XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, host->cname());
return nullptr;
}
- else {
- process = new simgrid::simix::ActorImpl();
-
- xbt_assert(code && host != nullptr, "Invalid parameters");
- /* Process data */
- process->pid = simix_process_maxpid++;
- process->name = simgrid::xbt::string(name);
- process->host = host;
- process->data = data;
- process->comms = xbt_fifo_new();
- process->simcall.issuer = process;
- /* Initiliaze data segment to default value */
- SIMIX_segment_index_set(process, -1);
-
- if (parent_process != nullptr) {
- process->ppid = parent_process->pid;
- /* SMPI process have their own data segment and each other inherit from their father */
+
+ smx_actor_t process = new simgrid::simix::ActorImpl();
+
+ xbt_assert(code && host != nullptr, "Invalid parameters");
+ /* Process data */
+ process->pid = simix_process_maxpid++;
+ process->name = simgrid::xbt::string(name);
+ process->host = host;
+ process->data = data;
+ process->simcall.issuer = process;
+
+ if (parent_process != nullptr) {
+ process->ppid = parent_process->pid;
+/* SMPI process have their own data segment and each other inherit from their father */
#if HAVE_SMPI
- if( smpi_privatize_global_variables) {
- if (parent_process->pid != 0) {
- SIMIX_segment_index_set(process, parent_process->segment_index);
- } else {
- SIMIX_segment_index_set(process, process->pid - 1);
- }
- }
+ if (smpi_privatize_global_variables) {
+ if (parent_process->pid != 0) {
+ SIMIX_segment_index_set(process, parent_process->segment_index);
+ } else {
+ SIMIX_segment_index_set(process, process->pid - 1);
+ }
+ }
#endif
- } else {
- process->ppid = -1;
- }
+ }
- /* Process data for auto-restart */
- process->auto_restart = auto_restart;
- process->code = code;
+ process->code = code;
- XBT_VERB("Create context %s", process->name.c_str());
- process->context = SIMIX_context_new(
- std::move(code),
- simix_global->cleanup_process_function, process);
+ XBT_VERB("Create context %s", process->name.c_str());
+ process->context = SIMIX_context_new(std::move(code), simix_global->cleanup_process_function, process);
- /* Add properties */
- process->properties = properties;
+ /* Add properties */
+ process->properties = properties;
- /* Add the process to it's host process list */
- xbt_swag_insert(process, sg_host_simix(host)->process_list);
+ /* Add the process to it's host process list */
+ xbt_swag_insert(process, host->extension<simgrid::simix::Host>()->process_list);
- XBT_DEBUG("Start context '%s'", process->name.c_str());
+ XBT_DEBUG("Start context '%s'", process->name.c_str());
- /* Now insert it in the global process list and in the process to run list */
- simix_global->process_list[process->pid] = process;
- XBT_DEBUG("Inserting %s(%s) in the to_run list", process->cname(), host->cname());
- xbt_dynar_push_as(simix_global->process_to_run, smx_actor_t, process);
+ /* Now insert it in the global process list and in the process to run list */
+ simix_global->process_list[process->pid] = process;
+ XBT_DEBUG("Inserting %s(%s) in the to_run list", process->cname(), host->cname());
+ xbt_dynar_push_as(simix_global->process_to_run, smx_actor_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->cname(), process->host->cname(), kill_time);
- process->kill_timer = SIMIX_timer_set(kill_time, [=]() {
- simix_global->kill_process_function(process);
- });
- }
+ /* Tracing the process creation */
+ TRACE_msg_process_create(process->cname(), process->pid, process->host);
- /* Tracing the process creation */
- TRACE_msg_process_create(process->cname(), process->pid, process->host);
- }
return process;
}
-smx_actor_t SIMIX_process_attach(
- const char* name,
- void *data,
- const char* hostname,
- xbt_dict_t properties,
- smx_actor_t parent_process)
+smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname, xbt_dict_t properties,
+ smx_actor_t parent_process)
{
// This is mostly a copy/paste from SIMIX_process_new(),
// it'd be nice to share some code between those two functions.
process->name = std::string(name);
process->host = host;
process->data = data;
- process->comms = xbt_fifo_new();
process->simcall.issuer = process;
- process->ppid = -1;
- /* Initiliaze data segment to default value */
- SIMIX_segment_index_set(process, -1);
+
if (parent_process != nullptr) {
process->ppid = parent_process->pid;
/* SMPI process have their own data segment and each other inherit from their father */
}
/* Process data for auto-restart */
- process->auto_restart = false;
process->code = nullptr;
XBT_VERB("Create context %s", process->name.c_str());
process->properties = properties;
/* Add the process to it's host process list */
- xbt_swag_insert(process, sg_host_simix(host)->process_list);
+ xbt_swag_insert(process, host->extension<simgrid::simix::Host>()->process_list);
/* Now insert it in the global process list and in the process to run list */
simix_global->process_list[process->pid] = process;
exec->unref();
} else if (comm != nullptr) {
- xbt_fifo_remove(process->comms, process->waiting_synchro);
+ process->comms.remove(process->waiting_synchro);
comm->cancel();
// Remove first occurrence of &process->simcall:
simgrid::kernel::activity::Comm *comm = dynamic_cast<simgrid::kernel::activity::Comm*>(process->waiting_synchro);
if (comm != nullptr) {
- xbt_fifo_remove(process->comms, comm);
+ process->comms.remove(comm);
comm->cancel();
}
{
process->new_host = dest;
}
+
void SIMIX_process_change_host(smx_actor_t process, sg_host_t dest)
{
xbt_assert((process != nullptr), "Invalid parameters");
- xbt_swag_remove(process, sg_host_simix(process->host)->process_list);
+ xbt_swag_remove(process, process->host->extension<simgrid::simix::Host>()->process_list);
process->host = dest;
- xbt_swag_insert(process, sg_host_simix(dest)->process_list);
+ xbt_swag_insert(process, dest->extension<simgrid::simix::Host>()->process_list);
}
{
XBT_IN("process = %p", process);
- if(process->context->iwannadie) {
+ if (process->context->iwannadie) {
XBT_VERB("Ignoring request to suspend a process that is currently dying.");
return;
}
- if(!process->suspended) return;
+ if (!process->suspended)
+ return;
process->suspended = 0;
/* resume the synchronization that was blocking the resumed process. */
if (!self) {
return nullptr;
}
- return SIMIX_process_get_data(self);
+ return self->data;
}
void SIMIX_process_self_set_data(void *data)
SIMIX_process_set_data(self, data);
}
-void* SIMIX_process_get_data(smx_actor_t process)
-{
- return process->data;
-}
-
void SIMIX_process_set_data(smx_actor_t process, void *data)
{
process->data = data;
sleep->surf_sleep = nullptr;
}
sleep->unref();
+ // intrusive_ptr_release(process); // FIXME: We are leaking here. See comment in SIMIX_process_join()
return 0;
}
{
smx_activity_t res = SIMIX_process_sleep(issuer, timeout);
static_cast<simgrid::kernel::activity::ActivityImpl*>(res)->ref();
+ /* We are leaking the process here, but if we don't take the ref, we get a "use after free".
+ * The correct solution would be to derivate the type SynchroSleep into a SynchroProcessJoin,
+ * but the code is not clean enough for now for this.
+ * The C API should first be properly replaced with the C++ one, which is a fair amount of work.
+ */
+ intrusive_ptr_add_ref(process);
SIMIX_process_on_exit(process, (int_f_pvoid_pvoid_t)SIMIX_process_join_finish, res);
return res;
}
*/
void SIMIX_process_yield(smx_actor_t self)
{
- XBT_DEBUG("Yield process '%s'", self->name.c_str());
+ XBT_DEBUG("Yield actor '%s'", self->cname());
/* Go into sleep and return control to maestro */
self->context->suspend();
void SIMIX_process_on_exit_runall(smx_actor_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);
+ while (!process->on_exit.empty()) {
+ exit_fun = process->on_exit.back();
(exit_fun.fun)((void*)exit_status, exit_fun.arg);
+ process->on_exit.pop_back();
}
}
void SIMIX_process_on_exit(smx_actor_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), nullptr);
- }
-
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);
+ process->on_exit.push_back(exit_fun);
}
/**
SIMIX_process_kill(process, issuer);
//start the new process
- return simix_global->create_process_function(arg.name.c_str(), std::move(arg.code), arg.data, arg.host,
- arg.kill_time, arg.properties, arg.auto_restart, nullptr);
+ smx_actor_t actor = simix_global->create_process_function(arg.name.c_str(), std::move(arg.code), arg.data, arg.host,
+ arg.properties, nullptr);
+ if (arg.kill_time >= 0)
+ simcall_process_set_kill_time(actor, arg.kill_time);
+ if (arg.auto_restart)
+ simcall_process_auto_restart_set(actor, arg.auto_restart);
+
+ return actor;
}
void SIMIX_segment_index_set(smx_actor_t proc, int index){
* \param properties the properties of the process
* \param auto_restart either it is autorestarting or not.
*/
-smx_actor_t simcall_process_create(const char *name,
- xbt_main_func_t code,
- void *data,
- sg_host_t host,
- double kill_time,
- int argc, char **argv,
- xbt_dict_t properties,
- int auto_restart)
+smx_actor_t simcall_process_create(const char* name, xbt_main_func_t code, void* data, sg_host_t host, int argc,
+ char** argv, xbt_dict_t properties)
{
if (name == nullptr)
name = "";
for (int i = 0; i != argc; ++i)
xbt_free(argv[i]);
xbt_free(argv);
- smx_actor_t res = simcall_process_create(name,
- std::move(wrapped_code),
- data, host, kill_time, properties, auto_restart);
+ smx_actor_t res = simcall_process_create(name, std::move(wrapped_code), data, host, properties);
return res;
}
-smx_actor_t simcall_process_create(
- const char *name, std::function<void()> code, void *data,
- sg_host_t host, double kill_time,
- xbt_dict_t properties, int auto_restart)
+smx_actor_t simcall_process_create(const char* name, std::function<void()> code, void* data, sg_host_t host,
+ xbt_dict_t properties)
{
if (name == nullptr)
name = "";
smx_actor_t self = SIMIX_process_self();
- return simgrid::simix::kernelImmediate([&] {
- return SIMIX_process_create(name, std::move(code), data, host, kill_time, properties, auto_restart, self);
+ return simgrid::simix::kernelImmediate([name, code, data, host, properties, self] {
+ return SIMIX_process_create(name, std::move(code), data, host, properties, self);
});
}
