+smx_process_t SIMIX_process_attach(
+ const char* name,
+ void *data,
+ const char* hostname,
+ xbt_dict_t properties,
+ smx_process_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.
+
+ sg_host_t host = sg_host_by_name(hostname);
+ XBT_DEBUG("Attach process %s on host '%s'", name, hostname);
+
+ if (host->is_off()) {
+ XBT_WARN("Cannot launch process '%s' on failed host '%s'",
+ name, hostname);
+ return nullptr;
+ }
+
+ smx_process_t process = xbt_new0(s_smx_process_t, 1);
+ /* 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;
+ process->ppid = -1;
+ /* Initiliaze data segment to default value */
+ SIMIX_segment_index_set(process, -1);
+ if (parent_process != NULL) {
+ process->ppid = SIMIX_process_get_PID(parent_process);
+ /* SMPI process have their own data segment and
+ each other inherit from their father */
+ #ifdef 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);
+ }
+ }
+ #endif
+ }
+
+ /* Process data for auto-restart */
+ process->auto_restart = false;
+ process->code = nullptr;
+ process->argc = 0;
+ process->argv = nullptr;
+
+ XBT_VERB("Create context %s", process->name);
+ if (!simix_global)
+ xbt_die("simix is not initialized, please call MSG_init first");
+ process->context = simix_global->context_factory->attach(
+ simix_global->cleanup_process_function, process);
+
+ process->running_ctx = (xbt_running_ctx_t*) xbt_malloc0(sizeof(xbt_running_ctx_t));
+ 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);
+
+ /* 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);
+
+ /* Tracing the process creation */
+ TRACE_msg_process_create(process->name, process->pid, process->host);
+
+ auto context = dynamic_cast<simgrid::simix::AttachContext*>(process->context);
+ if (!context)
+ xbt_die("Not a suitable context");
+
+ context->attach_start();
+ return process;
+}
+
+void SIMIX_process_detach(void)
+{
+ auto context = dynamic_cast<simgrid::simix::AttachContext*>(SIMIX_context_self());
+ if (!context)
+ xbt_die("Not a suitable context");
+
+ simix_global->cleanup_process_function(context->process());
+
+ // Let maestro ignore we are still alive:
+ // xbt_swag_remove(context->process(), simix_global->process_list);
+
+ // TODDO, Remove from proces list:
+ // xbt_swag_remove(process, sg_host_simix(host)->process_list);
+
+ context->attach_stop();
+ // delete context;
+}
+