X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c2bf63103e5914cb2245c77d45adc47e9a302889..16edf70b872e2d607cbb9122f6168a85e27f3721:/src/simix/smx_host.c

diff --git a/src/simix/smx_host.c b/src/simix/smx_host.c
index d700fef4b2..699c67e2df 100644
--- a/src/simix/smx_host.c
+++ b/src/simix/smx_host.c
@@ -9,125 +9,115 @@
 #include "private.h"
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
+#include "xbt/dict.h"
 
-/** \defgroup m_host_management Management functions of Hosts
- *  \brief This section describes the host structure of MSG
- * 
- *     \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Hosts" --> \endhtmlonly
- * (#m_host_t) and the functions for managing it.
- *  
- *  A <em>location</em> (or <em>host</em>) is any possible place where
- *  a process may run. Thus it may be represented as a
- *  <em>physical resource with computing capabilities</em>, some
- *  <em>mailboxes</em> to enable running process to communicate with
- *  remote ones, and some <em>private data</em> that can be only
- *  accessed by local process.
- *  \see m_host_t
- */
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_host, simix,
+                                "Logging specific to SIMIX (hosts)");
 
 /********************************* Host **************************************/
 smx_host_t __SIMIX_host_create(const char *name,
-			 void *workstation,
-			 void *data)
+                               void *workstation, void *data)
 {
-  simdata_host_t simdata = xbt_new0(s_simdata_host_t,1);
-  smx_host_t host = xbt_new0(s_smx_host_t,1);
+  smx_host_t smx_host = xbt_new0(s_smx_host_t, 1);
   s_smx_process_t proc;
 
   /* Host structure */
-  host->name = xbt_strdup(name);
-  host->simdata = simdata;
-  host->data = data;
-
-  simdata->host = workstation;
+  smx_host->name = xbt_strdup(name);
+  smx_host->data = data;
+  smx_host->host = workstation;
+  smx_host->process_list = xbt_swag_new(xbt_swag_offset(proc, host_proc_hookup));
 
-  simdata->process_list = xbt_swag_new(xbt_swag_offset(proc, host_proc_hookup));
   /* Update global variables */
+  xbt_dict_set(simix_global->host, smx_host->name, smx_host, &__SIMIX_host_destroy);
 
-  xbt_fifo_unshift(simix_global->host, host);
-
-  return host;
+  return smx_host;
 }
 
-/** \ingroup m_host_management
+/**
+ * \brief Set the user data of a #smx_host_t.
  *
- * \brief Set the user data of a #m_host_t.
+ * This functions checks whether some data has already been associated to \a host or not and attach \a data to \a host if it is possible.
+ *	\param host SIMIX host
+ *	\param data User data
  *
- * This functions checks whether some data has already been associated to \a host 
-   or not and attach \a data to \a host if it is possible.
  */
-void SIMIX_host_set_data(smx_host_t host, void *data)
+XBT_INLINE void SIMIX_host_set_data(smx_host_t host, void *data)
 {
-  xbt_assert0((host!=NULL), "Invalid parameters");
+  xbt_assert0((host != NULL), "Invalid parameters");
   xbt_assert0((host->data == NULL), "Data already set");
 
   /* Assign data */
   host->data = data;
 
-  return ;
+  return;
 }
 
-/** \ingroup m_host_management
+/**
+ * \brief Return the user data of a #smx_host_t.
  *
- * \brief Return the user data of a #m_host_t.
- *
- * This functions checks whether \a host is a valid pointer or not and return
-   the user data associated to \a host if it is possible.
+ * This functions checks whether \a host is a valid pointer or not and return the user data associated to \a host if it is possible.
+ * \param host SIMIX host
  */
-void *SIMIX_host_get_data(smx_host_t host)
+XBT_INLINE void *SIMIX_host_get_data(smx_host_t host)
 {
-
   xbt_assert0((host != NULL), "Invalid parameters");
 
   /* Return data */
-  return (host->data);
+  return host->data;
 }
 
-/** \ingroup m_host_management
- *
- * \brief Return the name of the #m_host_t.
+/**
+ * \brief Return the name of the #smx_host_t.
  *
- * This functions checks whether \a host is a valid pointer or not and return
-   its name.
+ * This functions checks whether \a host is a valid pointer or not and return its name.
+ * \param host SIMIX host
  */
-const char *SIMIX_host_get_name(smx_host_t host)
+XBT_INLINE const char *SIMIX_host_get_name(smx_host_t host)
 {
 
-  xbt_assert0((host != NULL) && (host->simdata != NULL), "Invalid parameters");
+  xbt_assert0((host != NULL), "Invalid parameters");
 
   /* Return data */
-  return (host->name);
+  return host->name;
 }
 
-/** \ingroup m_host_management
- *
+/**
  * \brief Return the location on which the current process is executed.
+ *
+ * Return the host,  more details in #SIMIX_process_get_host
+ * \return SIMIX host
  */
-smx_host_t SIMIX_host_self(void)
+XBT_INLINE smx_host_t SIMIX_host_self(void)
 {
   return SIMIX_process_get_host(SIMIX_process_self());
 }
 
 /*
  * Real function for destroy a host.
- * MSG_host_destroy is just  a front_end that also removes it from 
+ * MSG_host_destroy is just  a front_end that also removes it from
  * msg_global->host
  */
-void __SIMIX_host_destroy(smx_host_t host)
+void __SIMIX_host_destroy(void *h)
 {
-  simdata_host_t simdata = NULL;
+  smx_host_t host = (smx_host_t) h;
 
   xbt_assert0((host != NULL), "Invalid parameters");
 
- 
   /* Clean Simulator data */
-  simdata = host->simdata;
+  if (xbt_swag_size(host->process_list) != 0) {
+    char *msg = bprintf("Shutting down host %s, but it's not empty:", host->name);
+    char *tmp;
+    smx_process_t process = NULL;
 
-  xbt_assert0((xbt_swag_size(simdata->process_list)==0),
-	      "Some process are still running on this host");
-  xbt_swag_free(simdata->process_list);
+    xbt_swag_foreach(process, host->process_list) {
+      tmp = bprintf("%s\n\t%s", msg, process->name);
+      free(msg);
+      msg = tmp;
+    }
+    THROW1(arg_error, 0, "%s", msg);
+  }
 
-  free(simdata);
+  xbt_swag_free(host->process_list);
 
   /* Clean host structure */
   free(host->name);
@@ -136,50 +126,115 @@ void __SIMIX_host_destroy(smx_host_t host)
   return;
 }
 
-/** \ingroup m_host_management
- * \brief Return the current number of #m_host_t.
+/**
+ * \brief Return the current number of #smx_host_t.
+ *
+ * \return Number of hosts
  */
-int SIMIX_get_host_number(void)
+XBT_INLINE int SIMIX_host_get_number(void)
 {
-  return (xbt_fifo_size(simix_global->host));
+  return (xbt_dict_size(simix_global->host));
 }
 
-/** \ingroup m_host_management
- * \brief Return a array of all the #m_host_t.
+
+/**
+ * \brief Return an array of all the #smx_host_t.
+ *
+ * \return List of all hosts (in a newly allocated table)
  */
-smx_host_t *SIMIX_get_host_table(void)
+smx_host_t *SIMIX_host_get_table(void)
 {
-  return ((smx_host_t *)xbt_fifo_to_array(simix_global->host));
+  smx_host_t *res = xbt_new(smx_host_t, xbt_dict_size(simix_global->host));
+  smx_host_t h;
+  xbt_dict_cursor_t c;
+  char *name;
+  int i = 0;
+
+  xbt_dict_foreach(simix_global->host, c, name, h)
+    res[i++] = h;
+
+  return res;
 }
 
+/**
+ * \brief Return a dict of all the #smx_host_t.
+ *
+ * \return List of all hosts (as a #xbt_dict_t)
+ */
+XBT_INLINE xbt_dict_t SIMIX_host_get_dict(void)
+{
+  return simix_global->host;
+}
 
-/** \ingroup m_host_management
- * \brief Return the speed of the processor (in Mflop/s), regardless of 
-    the current load on the machine.
+/**
+ * \brief Return the speed of the processor.
+ *
+ * Return the speed (in Mflop/s), regardless of the current load on the machine.
+ * \param host SIMIX host
+ * \return Speed
+ */
+XBT_INLINE double SIMIX_host_get_speed(smx_host_t host)
+{
+  xbt_assert0((host != NULL), "Invalid parameters");
+
+  return (surf_workstation_model->extension.workstation.
+          get_speed(host->host, 1.0));
+}
+
+/**
+ * \brief Return the available speed of the processor.
+ *
+ * Return the available speed (in Mflop/s).
+ * \return Speed
+ */
+XBT_INLINE double SIMIX_host_get_available_speed(smx_host_t host)
+{
+  xbt_assert0((host != NULL), "Invalid parameters");
+
+  return (surf_workstation_model->extension.workstation.
+          get_available_speed(host->host));
+}
+
+/**
+ * \brief Return the host by its name
+ *
+ * Finds a smx_host_t using its name.
+ * \param name The name of an host.
+ * \return The corresponding host
  */
-double SIMIX_get_host_speed(smx_host_t h)
+XBT_INLINE smx_host_t SIMIX_host_get_by_name(const char *name)
 {
-  xbt_assert0((h!= NULL), "Invalid parameters");
+  xbt_assert0(((simix_global != NULL)
+               && (simix_global->host != NULL)), "Environment not set yet");
 
-  return(surf_workstation_resource->
-	 extension_public->get_speed(h->simdata->host,1.0));
+  return xbt_dict_get_or_null(simix_global->host, name);
 }
 
-/** \ingroup msg_gos_functions
- * \brief Determine if a host is available.
+/**
+ * \brief Returns a xbt_dynar_t consisting of the list of properties assigned to this host
  *
- * \param h host to test
+ * \param host a host
+ * \return the dynamic array consisting of property names
  */
-int SIMIX_host_is_avail (smx_host_t h)
+XBT_INLINE xbt_dict_t SIMIX_host_get_properties(smx_host_t host)
 {
-  e_surf_cpu_state_t cpustate;
-  xbt_assert0((h!= NULL), "Invalid parameters");
+  xbt_assert0((host != NULL), "Invalid parameters (simix host is NULL)");
+
+  return surf_workstation_model->extension.workstation.get_properties(host->host);
+}
 
-  cpustate =
-    surf_workstation_resource->extension_public->get_state(h->simdata->host);
 
-  xbt_assert0((cpustate == SURF_CPU_ON || cpustate == SURF_CPU_OFF),
-	      "Invalid cpu state");
+/**
+ * \brief Return the state of a workstation
+ *
+ * Return the state of a workstation. Two states are possible, 1 if the host is active or 0 if it has crashed.
+ * \param host The SIMIX host
+ * \return 1 if host is available or 0 if not.
+ */
+XBT_INLINE int SIMIX_host_get_state(smx_host_t host)
+{
+  xbt_assert0((host != NULL), "Invalid parameters (simix host is NULL)");
 
-  return (cpustate==SURF_CPU_ON);
+  return (surf_workstation_model->extension.workstation.
+          get_state(host->host));
 }