X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6badbbf58554a35b03f58509b0b18cf606c38f5e..7bac600c529ba83f8f246a2dcfa9ddd9c0095675:/src/simix/smx_process.cpp

diff --git a/src/simix/smx_process.cpp b/src/simix/smx_process.cpp
index c939390546..46007fbaaa 100644
--- a/src/simix/smx_process.cpp
+++ b/src/simix/smx_process.cpp
@@ -4,6 +4,7 @@
 /* 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 "src/surf/surf_interface.hpp"
 #include "smx_private.h"
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
@@ -12,6 +13,7 @@
 #include "src/mc/mc_replay.h"
 #include "src/mc/mc_client.h"
 #include "src/simix/smx_private.hpp"
+#include "src/msg/msg_private.h"
 
 #ifdef HAVE_SMPI
 #include "src/smpi/private.h"
@@ -57,7 +59,7 @@ void SIMIX_process_cleanup(smx_process_t process)
 
   /* Unregister from the kill timer if any */
   if (process->kill_timer != NULL)
-	  SIMIX_timer_remove(process->kill_timer);
+      SIMIX_timer_remove(process->kill_timer);
 
   xbt_os_mutex_acquire(simix_global->mutex);
 
@@ -101,7 +103,8 @@ void SIMIX_process_cleanup(smx_process_t process)
 
   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);
+  if (process->host)
+    xbt_swag_remove(process, sg_host_simix(process->host)->process_list);
   xbt_swag_insert(process, simix_global->process_to_destroy);
   process->context->iwannadie = 0;
 
@@ -136,25 +139,45 @@ void SIMIX_process_empty_trash(void)
   }
 }
 
-/**
- * \brief Creates and runs the maestro process
- */
-void SIMIX_create_maestro_process()
+namespace simgrid {
+namespace simix {
+
+void create_maestro(std::function<void()> code)
 {
   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->name = (char*) "";
+  maestro->data = nullptr;
   maestro->running_ctx = (xbt_running_ctx_t*) xbt_malloc0(sizeof(xbt_running_ctx_t));
   XBT_RUNNING_CTX_INITIALIZE(maestro->running_ctx);
-  maestro->context = SIMIX_context_new(NULL, 0, NULL, NULL, maestro);
+
+  if (!code) {
+    maestro->context = SIMIX_context_new(NULL, 0, nullptr, NULL, maestro);
+  } else {
+    if (!simix_global)
+      xbt_die("simix is not initialized, please call MSG_init first");
+    maestro->context =
+      simix_global->context_factory->create_maestro(code, maestro);
+  }
+
   maestro->simcall.issuer = maestro;
   simix_global->maestro_process = maestro;
-  return;
 }
+
+}
+}
+
+/**
+ * \brief Creates and runs the maestro process
+ */
+void SIMIX_maestro_create(void (*code)(void*), void* data)
+{
+  simgrid::simix::create_maestro(std::bind(code, data));
+}
+
 /**
  * \brief Stops a process.
  *
@@ -166,7 +189,7 @@ 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 && arg->host->isOff()) {
+  if (arg->auto_restart && arg->host->is_off()) {
     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),
@@ -245,7 +268,7 @@ smx_process_t SIMIX_process_create(
 
   XBT_DEBUG("Start process %s on host '%s'", name, hostname);
 
-  if (host->isOff()) {
+  if (host->is_off()) {
     int i;
     XBT_WARN("Cannot launch process '%s' on failed host '%s'", name,
           hostname);
@@ -319,10 +342,117 @@ smx_process_t SIMIX_process_create(
           sg_host_get_name(process->host), kill_time);
       process->kill_timer = SIMIX_timer_set(kill_time, kill_process, process);
     }
+
+    /* Tracing the process creation */
+    TRACE_msg_process_create(process->name, process->pid, process->host);
   }
   return process;
 }
 
+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;
+}
+
 /**
  * \brief Executes the processes from simix_global->process_to_run.
  *
@@ -370,7 +500,7 @@ void SIMIX_process_kill(smx_process_t process, smx_process_t issuer) {
 
     case SIMIX_SYNC_EXECUTE:
     case SIMIX_SYNC_PARALLEL_EXECUTE:
-      SIMIX_process_execution_destroy(process->waiting_synchro);
+      SIMIX_execution_destroy(process->waiting_synchro);
       break;
 
     case SIMIX_SYNC_COMMUNICATE:
@@ -427,7 +557,7 @@ void SIMIX_process_throw(smx_process_t process, xbt_errcat_t cat, int value, con
 
     case SIMIX_SYNC_EXECUTE:
     case SIMIX_SYNC_PARALLEL_EXECUTE:
-      SIMIX_process_execution_cancel(process->waiting_synchro);
+      SIMIX_execution_cancel(process->waiting_synchro);
       break;
 
     case SIMIX_SYNC_COMMUNICATE:
@@ -507,7 +637,7 @@ void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_process_t proces
   } else {
     xbt_fifo_push(sync_suspend->simcalls, simcall);
     process->waiting_synchro = sync_suspend;
-    SIMIX_host_execution_suspend(process->waiting_synchro);
+    SIMIX_execution_suspend(process->waiting_synchro);
   }
   /* If we are suspending ourselves, then just do not finish the simcall now */
 }
@@ -533,7 +663,7 @@ smx_synchro_t SIMIX_process_suspend(smx_process_t process, smx_process_t issuer)
 
         case SIMIX_SYNC_EXECUTE:
         case SIMIX_SYNC_PARALLEL_EXECUTE:
-          SIMIX_host_execution_suspend(process->waiting_synchro);
+          SIMIX_execution_suspend(process->waiting_synchro);
           break;
 
         case SIMIX_SYNC_COMMUNICATE:
@@ -559,7 +689,7 @@ smx_synchro_t SIMIX_process_suspend(smx_process_t process, smx_process_t issuer)
     }
   } 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);
+    return SIMIX_execution_start(process, "suspend", 0.0, 1.0, 0.0, 0);
   }
 }
 
@@ -589,7 +719,7 @@ void SIMIX_process_resume(smx_process_t process, smx_process_t issuer)
 
         case SIMIX_SYNC_EXECUTE:
         case SIMIX_SYNC_PARALLEL_EXECUTE:
-          SIMIX_host_execution_resume(process->waiting_synchro);
+          SIMIX_execution_resume(process->waiting_synchro);
           break;
 
         case SIMIX_SYNC_COMMUNICATE:
@@ -680,7 +810,7 @@ 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 "maestro";
 
   return SIMIX_process_get_name(process);
 }
@@ -721,7 +851,7 @@ void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_process_t process,
 
 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);
+    sync->sleep.surf_sleep->cancel();
 
     smx_simcall_t simcall;
     while ((simcall = (smx_simcall_t) xbt_fifo_shift(sync->simcalls))) {
@@ -735,7 +865,7 @@ static int SIMIX_process_join_finish(smx_process_exit_status_t status, smx_synch
         SIMIX_simcall_answer(simcall);
       }
     }
-    surf_action_unref(sync->sleep.surf_sleep);
+    sync->sleep.surf_sleep->unref();
     sync->sleep.surf_sleep = NULL;
   }
   xbt_mallocator_release(simix_global->synchro_mallocator, sync);
@@ -768,7 +898,7 @@ smx_synchro_t SIMIX_process_sleep(smx_process_t process, double duration)
   sg_host_t host = process->host;
 
   /* check if the host is active */
-  if (host->isOff()) {
+  if (host->is_off()) {
     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
            sg_host_get_name(host));
   }
@@ -781,7 +911,7 @@ smx_synchro_t SIMIX_process_sleep(smx_process_t process, double duration)
   synchro->sleep.host = host;
   synchro->sleep.surf_sleep = surf_host_sleep(host, duration);
 
-  surf_action_set_data(synchro->sleep.surf_sleep, synchro);
+  synchro->sleep.surf_sleep->setData(synchro);
   XBT_DEBUG("Create sleep synchronization %p", synchro);
 
   return synchro;
@@ -795,7 +925,7 @@ void SIMIX_post_process_sleep(smx_synchro_t synchro)
 
   while ((simcall = (smx_simcall_t) xbt_fifo_shift(synchro->simcalls))) {
 
-    switch(surf_action_get_state(synchro->sleep.surf_sleep)){
+    switch (synchro->sleep.surf_sleep->getState()){
       case SURF_ACTION_FAILED:
         simcall->issuer->context->iwannadie = 1;
         //SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
@@ -810,7 +940,7 @@ void SIMIX_post_process_sleep(smx_synchro_t synchro)
         THROW_IMPOSSIBLE;
         break;
     }
-    if (simcall->issuer->host->isOff()) {
+    if (simcall->issuer->host->is_off()) {
       simcall->issuer->context->iwannadie = 1;
     }
     simcall_process_sleep__set__result(simcall, state);
@@ -833,7 +963,7 @@ void SIMIX_process_sleep_destroy(smx_synchro_t 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->unref();
     synchro->sleep.surf_sleep = NULL;
   }
   if (synchro->type == SIMIX_SYNC_SLEEP)
@@ -843,14 +973,14 @@ void SIMIX_process_sleep_destroy(smx_synchro_t synchro)
 void SIMIX_process_sleep_suspend(smx_synchro_t synchro)
 {
   xbt_assert(synchro->type == SIMIX_SYNC_SLEEP);
-  surf_action_suspend(synchro->sleep.surf_sleep);
+  synchro->sleep.surf_sleep->suspend();
 }
 
 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);
+  synchro->sleep.surf_sleep->resume();
 }
 
 /**
@@ -902,7 +1032,11 @@ void SIMIX_process_yield(smx_process_t self)
 /* callback: context fetching */
 xbt_running_ctx_t *SIMIX_process_get_running_context(void)
 {
-  return SIMIX_process_self()->running_ctx;
+  smx_process_t process = SIMIX_process_self();
+  if (process)
+    return process->running_ctx;
+  else
+    return nullptr;
 }
 
 /* callback: termination */