From: thiery <thiery@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Wed, 2 Feb 2011 16:50:16 +0000 (+0000)
Subject: Use a mallocator for SIMIX actions
X-Git-Tag: v3.6_beta2~362
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/e99350b90a8c0e400db2f43e3093b70afdbd2aac

Use a mallocator for SIMIX actions

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@9567 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/include/xbt/fifo.h b/include/xbt/fifo.h
index 81762b5a5a..5455d697d9 100644
--- a/include/xbt/fifo.h
+++ b/include/xbt/fifo.h
@@ -31,6 +31,7 @@ typedef struct xbt_fifo *xbt_fifo_t;
 
 XBT_PUBLIC(xbt_fifo_t) xbt_fifo_new(void);
 XBT_PUBLIC(void) xbt_fifo_free(xbt_fifo_t);
+XBT_PUBLIC(void) xbt_fifo_reset(xbt_fifo_t);
 /** @} */
 
 /** @defgroup XBT_fifo_perl Fifo perl-like functions
diff --git a/src/simix/private.h b/src/simix/private.h
index 5aadc796a3..d63145dbf6 100644
--- a/src/simix/private.h
+++ b/src/simix/private.h
@@ -12,6 +12,7 @@
 #include "xbt/fifo.h"
 #include "xbt/swag.h"
 #include "xbt/dict.h"
+#include "xbt/mallocator.h"
 #include "xbt/config.h"
 #include "xbt/function_types.h"
 #include "xbt/ex_interface.h"
@@ -37,6 +38,7 @@ typedef struct s_smx_global {
   smx_creation_func_t create_process_function;
   void_f_pvoid_t kill_process_function;
   void_pfn_smxprocess_t cleanup_process_function;
+  xbt_mallocator_t action_mallocator;
 } s_smx_global_t, *smx_global_t;
 
 extern smx_global_t simix_global;
diff --git a/src/simix/smx_global.c b/src/simix/smx_global.c
index 059130d929..f640d4b426 100644
--- a/src/simix/smx_global.c
+++ b/src/simix/smx_global.c
@@ -26,6 +26,10 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_kernel, simix,
 smx_global_t simix_global = NULL;
 static xbt_heap_t simix_timers = NULL;
 
+static void* SIMIX_action_mallocator_new_f(void);
+static void SIMIX_action_mallocator_free_f(void* action);
+static void SIMIX_action_mallocator_reset_f(void* action);
+
 /* FIXME: Yeah, I'll do it in a portable maner one day [Mt] */
 #include <signal.h>
 
@@ -79,6 +83,9 @@ void SIMIX_global_init(int *argc, char **argv)
     simix_global->create_process_function = NULL;
     simix_global->kill_process_function = NULL;
     simix_global->cleanup_process_function = SIMIX_process_cleanup;
+    simix_global->action_mallocator = xbt_mallocator_new(65536,
+        SIMIX_action_mallocator_new_f, SIMIX_action_mallocator_free_f,
+        SIMIX_action_mallocator_reset_f);
 
     surf_init(argc, argv);      /* Initialize SURF structures */
     SIMIX_context_mod_init();
@@ -333,3 +340,23 @@ void SIMIX_display_process_status(void)
     }
   }
 }
+
+static void* SIMIX_action_mallocator_new_f(void) {
+  smx_action_t action = xbt_new(s_smx_action_t, 1);
+  action->request_list = xbt_fifo_new();
+  return action;
+}
+
+static void SIMIX_action_mallocator_free_f(void* action) {
+  xbt_fifo_free(((smx_action_t) action)->request_list);
+  xbt_free(action);
+}
+
+static void SIMIX_action_mallocator_reset_f(void* action) {
+
+  // we also recycle the request list
+  xbt_fifo_t fifo = ((smx_action_t) action)->request_list;
+  xbt_fifo_reset(fifo);
+  memset(action, 0, sizeof(s_smx_action_t));
+  ((smx_action_t) action)->request_list = fifo;
+}
diff --git a/src/simix/smx_host.c b/src/simix/smx_host.c
index de979ccc90..630400d4c2 100644
--- a/src/simix/smx_host.c
+++ b/src/simix/smx_host.c
@@ -182,10 +182,9 @@ smx_action_t SIMIX_host_execute(const char *name, smx_host_t host,
                                 double priority)
 {
   /* alloc structures and initialize */
-  smx_action_t action = xbt_new0(s_smx_action_t, 1);
+  smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
   action->type = SIMIX_ACTION_EXECUTE;
   action->name = xbt_strdup(name);
-  action->request_list = xbt_fifo_new();
   action->state = SIMIX_RUNNING;
   action->execution.host = host;
 
@@ -220,10 +219,9 @@ smx_action_t SIMIX_host_parallel_execute( const char *name,
   int i;
 
   /* alloc structures and initialize */
-  smx_action_t action = xbt_new0(s_smx_action_t, 1);
+  smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
   action->type = SIMIX_ACTION_PARALLEL_EXECUTE;
   action->name = xbt_strdup(name);
-  action->request_list = xbt_fifo_new();
   action->state = SIMIX_RUNNING;
   action->execution.host = NULL; /* FIXME: do we need the list of hosts? */
 
@@ -254,10 +252,7 @@ void SIMIX_host_execution_destroy(smx_action_t action)
 {
   DEBUG1("Destroy action %p", action);
 
-  if (action->name)
-    xbt_free(action->name);
-
-  xbt_fifo_free(action->request_list);
+  xbt_free(action->name);
 
   if (action->execution.surf_exec) {
     surf_workstation_model->action_unref(action->execution.surf_exec);
@@ -267,7 +262,7 @@ void SIMIX_host_execution_destroy(smx_action_t action)
 #ifdef HAVE_TRACING
   TRACE_smx_action_destroy(action);
 #endif
-  xbt_free(action);
+  xbt_mallocator_release(simix_global->action_mallocator, action);
 }
 
 void SIMIX_host_execution_cancel(smx_action_t action)
diff --git a/src/simix/smx_network.c b/src/simix/smx_network.c
index 8956b25c74..0fe6778674 100644
--- a/src/simix/smx_network.c
+++ b/src/simix/smx_network.c
@@ -164,10 +164,9 @@ smx_action_t SIMIX_comm_new(e_smx_comm_type_t type)
   smx_action_t act;
 
   /* alloc structures */
-  act = xbt_new0(s_smx_action_t, 1);
+  act = xbt_mallocator_get(simix_global->action_mallocator);
   act->type = SIMIX_ACTION_COMMUNICATE;
   act->state = SIMIX_WAITING;
-  act->request_list = xbt_fifo_new();
 
   /* set communication */
   act->comm.type = type;
@@ -212,11 +211,7 @@ void SIMIX_comm_destroy(smx_action_t action)
   TRACE_smx_action_destroy(action);
 #endif
 
-  if (action->name)
-    xbt_free(action->name);
-
-  xbt_fifo_free(action->request_list);
-
+  xbt_free(action->name);
   SIMIX_comm_destroy_internal_actions(action);
 
   if (action->comm.detached && action->state != SIMIX_DONE) {
@@ -225,7 +220,7 @@ void SIMIX_comm_destroy(smx_action_t action)
     ((void_f_pvoid_t) action->comm.src_data)(action->comm.src_buff);
   }
 
-  xbt_free(action);
+  xbt_mallocator_release(simix_global->action_mallocator, action);
 }
 
 void SIMIX_comm_destroy_internal_actions(smx_action_t action)
diff --git a/src/simix/smx_process.c b/src/simix/smx_process.c
index c24f92204f..01df49c494 100644
--- a/src/simix/smx_process.c
+++ b/src/simix/smx_process.c
@@ -434,9 +434,8 @@ smx_action_t SIMIX_process_sleep(smx_process_t process, double duration)
            host->name);
   }
 
-  action = xbt_new0(s_smx_action_t, 1);
+  action = xbt_mallocator_get(simix_global->action_mallocator);
   action->type = SIMIX_ACTION_SLEEP;
-  action->request_list = xbt_fifo_new();
   action->name = xbt_strdup("sleep");
 #ifdef HAVE_TRACING
   action->category = NULL;
@@ -482,15 +481,13 @@ void SIMIX_post_process_sleep(smx_action_t action)
 void SIMIX_process_sleep_destroy(smx_action_t action)
 {
   DEBUG1("Destroy action %p", action);
-  if (action->name)
-    xbt_free(action->name);
+  xbt_free(action->name);
   if (action->sleep.surf_sleep)
     action->sleep.surf_sleep->model_type->action_unref(action->sleep.surf_sleep);
 #ifdef HAVE_TRACING
   TRACE_smx_action_destroy(action);
 #endif
-  xbt_fifo_free(action->request_list);
-  xbt_free(action);
+  xbt_mallocator_release(simix_global->action_mallocator, action);
 }
 
 void SIMIX_process_sleep_suspend(smx_action_t action)
diff --git a/src/simix/smx_synchro.c b/src/simix/smx_synchro.c
index 16ceb04ab4..d29225573a 100644
--- a/src/simix/smx_synchro.c
+++ b/src/simix/smx_synchro.c
@@ -24,9 +24,8 @@ static void SIMIX_sem_block_onto(smx_sem_t sem);
 static smx_action_t SIMIX_synchro_wait(smx_host_t smx_host, double timeout)
 {
   smx_action_t action;
-  action = xbt_new0(s_smx_action_t, 1);
+  action = xbt_mallocator_get(simix_global->action_mallocator);
   action->type = SIMIX_ACTION_SYNCHRO;
-  action->request_list = xbt_fifo_new();
   action->name = xbt_strdup("synchro");
   action->synchro.sleep = 
     surf_workstation_model->extension.workstation.sleep(smx_host->host, timeout);
@@ -68,9 +67,8 @@ void SIMIX_synchro_destroy(smx_action_t action)
 {
   DEBUG1("Destroying synchro %p", action);
   action->synchro.sleep->model_type->action_unref(action->synchro.sleep);
-  xbt_fifo_free(action->request_list);
   xbt_free(action->name);
-  xbt_free(action);
+  xbt_mallocator_release(simix_global->action_mallocator, action);
 }
 
 void SIMIX_post_synchro(smx_action_t action)
diff --git a/src/surf/surf_action.c b/src/surf/surf_action.c
index 175fe69c7f..fc5b8d9363 100644
--- a/src/surf/surf_action.c
+++ b/src/surf/surf_action.c
@@ -26,9 +26,9 @@ const char *surf_action_state_names[6] = {
 /* Surf actions mallocator */
 static xbt_mallocator_t action_mallocator = NULL;
 static int action_mallocator_allocated_size = 0;
-static void* action_mallocator_new_f(void);
-static void action_mallocator_free_f(void* action);
-static void action_mallocator_reset_f(void* action);
+static void* surf_action_mallocator_new_f(void);
+static void surf_action_mallocator_free_f(void* action);
+static void surf_action_mallocator_reset_f(void* action);
 
 /**
  * \brief Initializes the action module of Surf.
@@ -39,8 +39,8 @@ void surf_action_init(void) {
    * so this size should be set to the maximum size of the surf action structures
    */
   action_mallocator_allocated_size = sizeof(s_surf_action_network_CM02_t);
-  action_mallocator = xbt_mallocator_new(128, action_mallocator_new_f,
-      action_mallocator_free_f, action_mallocator_reset_f);
+  action_mallocator = xbt_mallocator_new(65536, surf_action_mallocator_new_f,
+      surf_action_mallocator_free_f, surf_action_mallocator_reset_f);
 }
 
 /**
@@ -51,15 +51,15 @@ void surf_action_exit(void) {
   xbt_mallocator_free(action_mallocator);
 }
 
-static void* action_mallocator_new_f(void) {
-  return xbt_malloc0(action_mallocator_allocated_size);
+static void* surf_action_mallocator_new_f(void) {
+  return xbt_malloc(action_mallocator_allocated_size);
 }
 
-static void action_mallocator_free_f(void* action) {
+static void surf_action_mallocator_free_f(void* action) {
   xbt_free(action);
 }
 
-static void action_mallocator_reset_f(void* action) {
+static void surf_action_mallocator_reset_f(void* action) {
   memset(action, 0, action_mallocator_allocated_size);
 }
 
diff --git a/src/xbt/fifo.c b/src/xbt/fifo.c
index c3d4ffb905..de5e0b7433 100644
--- a/src/xbt/fifo.c
+++ b/src/xbt/fifo.c
@@ -36,13 +36,24 @@ xbt_fifo_t xbt_fifo_new(void)
  * Free the fifo structure. None of the objects that was in the fifo is however modified.
  */
 void xbt_fifo_free(xbt_fifo_t l)
+{
+  xbt_fifo_reset(l);
+  xbt_free(l);
+}
+
+/**
+ * \brief Makes a fifo empty.
+ * \param l a fifo
+ *
+ * None of the objects that was in the fifo is however modified.
+ */
+void xbt_fifo_reset(xbt_fifo_t l)
 {
   xbt_fifo_item_t b, tmp;
 
   for (b = xbt_fifo_get_first_item(l); b;
        tmp = b, b = b->next, xbt_fifo_free_item(tmp));
-  xbt_free(l);
-  return;
+  l->head = l->tail = NULL;
 }
 
 /** Push