Logo AND Algorithmique Numérique Distribuée

Public GIT Repository
cleanups in mailbox module init/fini
[simgrid.git] / src / simix / smx_global.cpp
index ea20087..6e71f22 100644 (file)
@@ -5,45 +5,36 @@
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include <stdlib.h>
-#include "src/portable.h"
-#ifdef HAVE_SYS_PTRACE_H
-# include <sys/types.h>
-# include <sys/ptrace.h>
-#endif
+#include "src/internal_config.h"
 
+#include "src/surf/surf_interface.hpp"
+#include "src/surf/storage_interface.hpp"
+#include "src/surf/xml/platf.hpp"
 #include "smx_private.h"
 #include "smx_private.hpp"
-#include "xbt/heap.h"
-#include "xbt/sysdep.h"
-#include "xbt/log.h"
 #include "xbt/str.h"
 #include "xbt/ex.h"             /* ex_backtrace_display */
 #include "mc/mc.h"
 #include "src/mc/mc_replay.h"
 #include "simgrid/sg_config.h"
 
-#include "src/surf/callbacks.h"
-
-#ifdef HAVE_MC
+#if HAVE_MC
 #include "src/mc/mc_private.h"
 #include "src/mc/mc_protocol.h"
-#include "src/mc/mc_client.h"
-#endif
+#include "src/mc/Client.hpp"
 
-#ifdef HAVE_MC
 #include <stdlib.h>
 #include "src/mc/mc_protocol.h"
 #endif 
 
 #include "src/mc/mc_record.h"
 
-#ifdef HAVE_SMPI
+#if HAVE_SMPI
 #include "src/smpi/private.h"
 #endif
 
 XBT_LOG_NEW_CATEGORY(simix, "All SIMIX categories");
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_kernel, simix,
-                                "Logging specific to SIMIX (kernel)");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_kernel, simix, "Logging specific to SIMIX (kernel)");
 
 smx_global_t simix_global = NULL;
 static xbt_heap_t simix_timers = NULL;
@@ -55,6 +46,8 @@ typedef struct s_smx_timer {
   void* args;
 } s_smx_timer_t;
 
+void (*SMPI_switch_data_segment)(int) = NULL;
+
 static void* SIMIX_synchro_mallocator_new_f(void);
 static void SIMIX_synchro_mallocator_free_f(void* synchro);
 static void SIMIX_synchro_mallocator_reset_f(void* synchro);
@@ -63,7 +56,7 @@ static void SIMIX_synchro_mallocator_reset_f(void* synchro);
 #include <signal.h>
 
 int _sg_do_verbose_exit = 1;
-static void _XBT_CALL inthandler(int ignored)
+static void inthandler(int ignored)
 {
   if ( _sg_do_verbose_exit ) {
      XBT_INFO("CTRL-C pressed. The current status will be displayed before exit (disable that behavior with option 'verbose-exit').");
@@ -75,8 +68,8 @@ static void _XBT_CALL inthandler(int ignored)
   exit(1);
 }
 
-#ifndef WIN32
-static void _XBT_CALL segvhandler(int signum, siginfo_t *siginfo, void *context)
+#ifndef _WIN32
+static void segvhandler(int signum, siginfo_t *siginfo, void *context)
 {
   if (siginfo->si_signo == SIGSEGV && siginfo->si_code == SEGV_ACCERR) {
     fprintf(stderr,
@@ -95,12 +88,17 @@ static void _XBT_CALL segvhandler(int signum, siginfo_t *siginfo, void *context)
     }
   } else  if (siginfo->si_signo == SIGSEGV) {
     fprintf(stderr, "Segmentation fault.\n");
-#ifdef HAVE_SMPI
+#if HAVE_SMPI
     if (smpi_enabled() && !smpi_privatize_global_variables) {
+#if HAVE_PRIVATIZATION
       fprintf(stderr,
         "Try to enable SMPI variable privatization with --cfg=smpi/privatize_global_variables:yes.\n");
+#else
+      fprintf(stderr,
+        "Sadly, your system does not support --cfg=smpi/privatize_global_variables:yes (yet).\n");
+#endif /* HAVE_PRIVATIZATION */
     }
-#endif
+#endif /* HAVE_SMPI */
   }
   raise(signum);
 }
@@ -119,8 +117,7 @@ static void install_segvhandler(void)
   stack.ss_flags = 0;
 
   if (sigaltstack(&stack, &old_stack) == -1) {
-    XBT_WARN("Failed to register alternate signal stack: %s",
-             strerror(errno));
+    XBT_WARN("Failed to register alternate signal stack: %s", strerror(errno));
     return;
   }
   if (!(old_stack.ss_flags & SS_DISABLE)) {
@@ -135,8 +132,7 @@ static void install_segvhandler(void)
   sigemptyset(&action.sa_mask);
 
   if (sigaction(SIGSEGV, &action, &old_action) == -1) {
-    XBT_WARN("Failed to register signal handler for SIGSEGV: %s",
-             strerror(errno));
+    XBT_WARN("Failed to register signal handler for SIGSEGV: %s", strerror(errno));
     return;
   }
   if ((old_action.sa_flags & SA_SIGINFO) || old_action.sa_handler != SIG_DFL) {
@@ -147,7 +143,7 @@ static void install_segvhandler(void)
   }
 }
 
-#endif
+#endif /* _WIN32 */
 /********************************* SIMIX **************************************/
 
 double SIMIX_timer_next(void)
@@ -166,6 +162,24 @@ static void SIMIX_storage_create_(smx_storage_t storage)
   SIMIX_storage_create(key, storage, NULL);
 }
 
+static std::function<void()> maestro_code;
+
+namespace simgrid {
+namespace simix {
+
+XBT_PUBLIC(void) set_maestro(std::function<void()> code)
+{
+  maestro_code = std::move(code);
+}
+
+}
+}
+
+void SIMIX_set_maestro(void (*code)(void*), void* data)
+{
+  maestro_code = std::bind(code, data);
+}
+
 /**
  * \ingroup SIMIX_API
  * \brief Initialize SIMIX internal data.
@@ -175,7 +189,7 @@ static void SIMIX_storage_create_(smx_storage_t storage)
  */
 void SIMIX_global_init(int *argc, char **argv)
 {
-#ifdef HAVE_MC
+#if HAVE_MC
   _sg_do_model_check = getenv(MC_ENV_VARIABLE) != NULL;
 #endif
 
@@ -191,10 +205,8 @@ void SIMIX_global_init(int *argc, char **argv)
 #endif
     simix_global->process_to_run = xbt_dynar_new(sizeof(smx_process_t), NULL);
     simix_global->process_that_ran = xbt_dynar_new(sizeof(smx_process_t), NULL);
-    simix_global->process_list =
-        xbt_swag_new(xbt_swag_offset(proc, process_hookup));
-    simix_global->process_to_destroy =
-        xbt_swag_new(xbt_swag_offset(proc, destroy_hookup));
+    simix_global->process_list = xbt_swag_new(xbt_swag_offset(proc, process_hookup));
+    simix_global->process_to_destroy = xbt_swag_new(xbt_swag_offset(proc, destroy_hookup));
 
     simix_global->maestro_process = NULL;
     simix_global->registered_functions = xbt_dict_new_homogeneous(NULL);
@@ -205,46 +217,54 @@ void SIMIX_global_init(int *argc, char **argv)
     simix_global->synchro_mallocator = xbt_mallocator_new(65536,
         SIMIX_synchro_mallocator_new_f, SIMIX_synchro_mallocator_free_f,
         SIMIX_synchro_mallocator_reset_f);
-    simix_global->autorestart = SIMIX_host_restart_processes;
     simix_global->mutex = xbt_os_mutex_init();
 
     surf_init(argc, argv);      /* Initialize SURF structures */
     SIMIX_context_mod_init();
-    SIMIX_create_maestro_process();
+
+    // Either create a new context with maestro or create
+    // a context object with the current context mestro):
+    simgrid::simix::create_maestro(maestro_code);
 
     /* context exception handlers */
     __xbt_running_ctx_fetch = SIMIX_process_get_running_context;
     __xbt_ex_terminate = SIMIX_process_exception_terminate;
 
-    SIMIX_network_init();
-
     /* Prepare to display some more info when dying on Ctrl-C pressing */
     signal(SIGINT, inthandler);
 
-#ifndef WIN32
-    /* Install SEGV handler */
+#ifndef _WIN32
     install_segvhandler();
 #endif
     /* register a function to be called by SURF after the environment creation */
     sg_platf_init();
-    sg_platf_postparse_add_cb(SIMIX_post_create_environment);
-    surf_on_host_created(SIMIX_host_create);
-    surf_on_storage_created(SIMIX_storage_create_);
-
+    simgrid::surf::on_postparse.connect(SIMIX_post_create_environment);
+    simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
+      SIMIX_host_create(&host);
+    });
+    SIMIX_HOST_LEVEL = simgrid::s4u::Host::extension_create(SIMIX_host_destroy);
+
+    simgrid::surf::storageCreatedCallbacks.connect([](simgrid::surf::Storage* storage) {
+      const char* id = storage->getName();
+        // TODO, create sg_storage_by_name
+        sg_storage_t s = xbt_lib_get_elm_or_null(storage_lib, id);
+        xbt_assert(s != NULL, "Storage not found for name %s", id);
+        SIMIX_storage_create_(s);
+      });
+
+    SIMIX_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, SIMIX_storage_destroy);
   }
   if (!simix_timers) {
     simix_timers = xbt_heap_new(8, &free);
   }
 
-  SIMIX_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, SIMIX_storage_destroy);
-
-  if (sg_cfg_get_boolean("clean_atexit"))
+  if (xbt_cfg_get_boolean("clean_atexit"))
     atexit(SIMIX_clean);
 
-#ifdef HAVE_MC
+#if HAVE_MC
   // The communication initialization is done ASAP.
   // We need to communicate  initialization of the different layers to the model-checker.
-  MC_client_init();
+  simgrid::mc::Client::initialize();
 #endif
 
   if (_sg_cfg_exit_asap)
@@ -267,16 +287,16 @@ void SIMIX_clean(void)
   smx_cleaned = 1;
   XBT_DEBUG("SIMIX_clean called. Simulation's over.");
   if (!xbt_dynar_is_empty(simix_global->process_to_run) && SIMIX_get_clock() == 0.0) {
-         XBT_CRITICAL("   ");
-         XBT_CRITICAL("The time is still 0, and you still have processes ready to run.");
-         XBT_CRITICAL("It seems that you forgot to run the simulation that you setup.");
-         xbt_die("Bailing out to avoid that stop-before-start madness. Please fix your code.");
+    XBT_CRITICAL("   ");
+    XBT_CRITICAL("The time is still 0, and you still have processes ready to run.");
+    XBT_CRITICAL("It seems that you forgot to run the simulation that you setup.");
+    xbt_die("Bailing out to avoid that stop-before-start madness. Please fix your code.");
   }
   /* Kill all processes (but maestro) */
   SIMIX_process_killall(simix_global->maestro_process, 1);
 
   /* Exit the SIMIX network module */
-  SIMIX_network_exit();
+  SIMIX_mailbox_exit();
 
   xbt_heap_free(simix_timers);
   simix_timers = NULL;
@@ -358,9 +378,8 @@ static int process_syscall_color(void *p)
  */
 void SIMIX_run(void)
 {
-  if(MC_record_path) {
-    MC_record_replay_init();
-    MC_record_replay_from_string(MC_record_path);
+  if (MC_record_path) {
+    simgrid::mc::replay(MC_record_path);
     return;
   }
 
@@ -460,15 +479,15 @@ void SIMIX_run(void)
         XBT_DEBUG("Handling process whose action failed");
         while ((action = surf_model_extract_failed_action_set(model))) {
           XBT_DEBUG("   Handling Action %p",action);
-          SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
+          SIMIX_simcall_exit((smx_synchro_t) action->getData());
         }
         XBT_DEBUG("Handling process whose action terminated normally");
         while ((action = surf_model_extract_done_action_set(model))) {
           XBT_DEBUG("   Handling Action %p",action);
-          if (surf_action_get_data(action) == NULL)
+          if (action->getData() == NULL)
             XBT_DEBUG("probably vcpu's action %p, skip", action);
           else
-            SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
+            SIMIX_simcall_exit((smx_synchro_t) action->getData());
         }
       }
     }
@@ -498,27 +517,25 @@ void SIMIX_run(void)
       XBT_DEBUG("Handling process whose action failed");
       while ((action = surf_model_extract_failed_action_set(model))) {
         XBT_DEBUG("   Handling Action %p",action);
-        SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
+        SIMIX_simcall_exit((smx_synchro_t) action->getData());
       }
       XBT_DEBUG("Handling process whose action terminated normally");
       while ((action = surf_model_extract_done_action_set(model))) {
         XBT_DEBUG("   Handling Action %p",action);
-        if (surf_action_get_data(action) == NULL)
+        if (action->getData() == NULL)
           XBT_DEBUG("probably vcpu's action %p, skip", action);
         else
-          SIMIX_simcall_exit((smx_synchro_t) surf_action_get_data(action));
+          SIMIX_simcall_exit((smx_synchro_t) action->getData());
       }
     }
 
     /* Autorestart all process */
-    if(host_that_restart) {
-      char *hostname = NULL;
-      xbt_dynar_foreach(host_that_restart,iter,hostname) {
-        XBT_INFO("Restart processes on host: %s",hostname);
-        SIMIX_host_autorestart(sg_host_by_name(hostname));
-      }
-      xbt_dynar_reset(host_that_restart);
+    char *hostname = NULL;
+    xbt_dynar_foreach(host_that_restart,iter,hostname) {
+      XBT_INFO("Restart processes on host: %s",hostname);
+      SIMIX_host_autorestart(sg_host_by_name(hostname));
     }
+    xbt_dynar_reset(host_that_restart);
 
     /* Clean processes to destroy */
     SIMIX_process_empty_trash();
@@ -530,7 +547,7 @@ void SIMIX_run(void)
 
   if (xbt_swag_size(simix_global->process_list) != 0) {
 
-       TRACE_end();
+  TRACE_end();
 
     XBT_CRITICAL("Oops ! Deadlock or code not perfectly clean.");
     SIMIX_display_process_status();
@@ -559,12 +576,12 @@ smx_timer_t SIMIX_timer_set(double date, void (*function)(void*), void *arg)
 }
 /** @brief cancels a timer that was added earlier */
 void SIMIX_timer_remove(smx_timer_t timer) {
-       xbt_heap_rm_elm(simix_timers, timer, timer->date);
+  xbt_heap_rm_elm(simix_timers, timer, timer->date);
 }
 
 /** @brief Returns the date at which the timer will trigger (or 0 if NULL timer) */
 double SIMIX_timer_get_date(smx_timer_t timer) {
-       return timer?timer->date:0;
+  return timer?timer->date:0;
 }
 
 /**
@@ -696,3 +713,8 @@ xbt_dict_t SIMIX_asr_get_properties(const char *name)
 {
   return (xbt_dict_t) xbt_lib_get_or_null(as_router_lib, name, ROUTING_PROP_ASR_LEVEL);
 }
+
+int SIMIX_is_maestro()
+{
+  return simix_global==NULL /*SimDag*/|| SIMIX_process_self() == simix_global->maestro_process;
+}