/* $Id$ */
-
+
/* Copyright (c) 2002-2007 Arnaud Legrand. */
/* Copyright (c) 2007 Bruno Donassolo. */
/* All rights reserved. */
* \return The new corresponding object.
*/
m_task_t MSG_task_create(const char *name, double compute_duration,
- double message_size, void *data)
+ double message_size, void *data)
{
- m_task_t task = xbt_new(s_m_task_t,1);
- simdata_task_t simdata = xbt_new(s_simdata_task_t,1);
+ m_task_t task = xbt_new(s_m_task_t, 1);
+ simdata_task_t simdata = xbt_new(s_simdata_task_t, 1);
task->simdata = simdata;
/* Task structure */
task->name = xbt_strdup(name);
simdata->message_size = message_size;
simdata->rate = -1.0;
simdata->priority = 1.0;
- simdata->using = 1;
+ simdata->refcount = 1;
simdata->sender = NULL;
simdata->receiver = NULL;
- simdata->cond = SIMIX_cond_init();
- simdata->mutex = SIMIX_mutex_init();
- simdata->compute = NULL;
- simdata->comm = NULL;
+ simdata->cond = SIMIX_cond_init();
+ simdata->mutex = SIMIX_mutex_init();
+ simdata->compute = NULL;
+ simdata->comm = NULL;
- simdata->host_list = NULL;
- simdata->comp_amount = NULL;
- simdata->comm_amount = NULL;
+ simdata->host_list = NULL;
+ simdata->comp_amount = NULL;
+ simdata->comm_amount = NULL;
return task;
}
+/** prevent the task from being destroyed too quickly (but also prevent it from being sent). Mainly useful in bindings */
+void MSG_task_ref(m_task_t t) {
+ t->simdata->refcount++;
+}
+
/** \ingroup m_task_management
* \brief Return the user data of a #m_task_t.
*
- * This functions checks whether \a task is a valid pointer or not and return
+ * This function checks whether \a task is a valid pointer or not and return
the user data associated to \a task if it is possible.
*/
void *MSG_task_get_data(m_task_t task)
return (task->data);
}
+/** \ingroup m_task_management
+ * \brief Sets the user data of a #m_task_t.
+ *
+ * This function allows to associate a new pointer to
+ the user data associated of \a task.
+ */
+void MSG_task_set_data(m_task_t task,void *data)
+{
+ xbt_assert0((task != NULL), "Invalid parameter");
+
+ task->data = data;
+}
+
/** \ingroup m_task_management
* \brief Return the sender of a #m_task_t.
*
*/
m_process_t MSG_task_get_sender(m_task_t task)
{
- xbt_assert0(task, "Invalid parameters");
- return ((simdata_task_t) task->simdata)->sender;
+ xbt_assert0(task, "Invalid parameters");
+ return ((simdata_task_t) task->simdata)->sender;
}
/** \ingroup m_task_management
*/
m_host_t MSG_task_get_source(m_task_t task)
{
- xbt_assert0(task, "Invalid parameters");
- return ((simdata_task_t) task->simdata)->source;
+ xbt_assert0(task, "Invalid parameters");
+ return ((simdata_task_t) task->simdata)->source;
}
/** \ingroup m_task_management
*/
const char *MSG_task_get_name(m_task_t task)
{
- xbt_assert0(task, "Invalid parameters");
- return task->name;
+ xbt_assert0(task, "Invalid parameters");
+ return task->name;
}
smx_action_t action = NULL;
xbt_assert0((task != NULL), "Invalid parameter");
- /* why? if somebody is using, then you can't free! ok... but will return MSG_OK? when this task will be destroyed? isn't the user code wrong? */
- task->simdata->using--;
- if(task->simdata->using>0) return MSG_OK;
+ /* why? if somebody is using, then you can't free! ok... but will return MSG_OK? when this task will be destroyed? isn't the user code wrong? */
+ task->simdata->refcount--;
+ if (task->simdata->refcount > 0)
+ return MSG_OK;
- if(task->name) free(task->name);
+ if (task->name)
+ free(task->name);
- SIMIX_cond_destroy(task->simdata->cond);
- SIMIX_mutex_destroy(task->simdata->mutex);
+ SIMIX_cond_destroy(task->simdata->cond);
+ SIMIX_mutex_destroy(task->simdata->mutex);
action = task->simdata->compute;
- if(action) SIMIX_action_destroy(action);
- action = task->simdata->comm;
- if(action) SIMIX_action_destroy(action);
- /* parallel tasks only */
- if(task->simdata->host_list) xbt_free(task->simdata->host_list);
-
- /* free main structures */
- xbt_free(task->simdata);
- xbt_free(task);
+ if (action)
+ SIMIX_action_destroy(action);
+
+ /* parallel tasks only */
+ if (task->simdata->host_list)
+ xbt_free(task->simdata->host_list);
+
+ /* free main structures */
+ xbt_free(task->simdata);
+ xbt_free(task);
return MSG_OK;
}
{
xbt_assert0((task != NULL), "Invalid parameter");
- if(task->simdata->compute) {
- SIMIX_action_cancel(task->simdata->compute);
+ if (task->simdata->compute) {
+ SIMIX_action_cancel(task->simdata->compute);
return MSG_OK;
}
- if(task->simdata->comm) {
- SIMIX_action_cancel(task->simdata->comm);
+ if (task->simdata->comm) {
+ SIMIX_communication_cancel(task->simdata->comm);
return MSG_OK;
}
-
- return MSG_FATAL;
+ THROW_IMPOSSIBLE;
}
/** \ingroup m_task_management
* \brief Returns the computation amount needed to process a task #m_task_t.
* Once a task has been processed, this amount is thus set to 0...
*/
-double MSG_task_get_compute_duration(m_task_t task)
+double MSG_task_get_compute_duration(m_task_t task)
{
- xbt_assert0((task != NULL) && (task->simdata != NULL), "Invalid parameter");
+ xbt_assert0((task != NULL)
+ && (task->simdata != NULL), "Invalid parameter");
return task->simdata->computation_amount;
}
*/
double MSG_task_get_remaining_computation(m_task_t task)
{
- xbt_assert0((task != NULL) && (task->simdata != NULL), "Invalid parameter");
+ xbt_assert0((task != NULL)
+ && (task->simdata != NULL), "Invalid parameter");
- if(task->simdata->compute) {
+ if (task->simdata->compute) {
return SIMIX_action_get_remains(task->simdata->compute);
} else {
return task->simdata->computation_amount;
}
}
+
+
+/** \ingroup m_task_management
+ * \brief Returns the total amount received by a task #m_task_t.
+ *
+ */
+double MSG_task_get_remaining_communication(m_task_t task)
+{
+ xbt_assert0((task != NULL)
+ && (task->simdata != NULL), "Invalid parameter");
+
+ return SIMIX_communication_get_remains(task->simdata->comm);
+}
+
/** \ingroup m_task_management
* \brief Returns the size of the data attached to a task #m_task_t.
*
*/
-double MSG_task_get_data_size(m_task_t task)
+double MSG_task_get_data_size(m_task_t task)
{
- xbt_assert0((task != NULL) && (task->simdata != NULL), "Invalid parameter");
+ xbt_assert0((task != NULL)
+ && (task->simdata != NULL), "Invalid parameter");
return task->simdata->message_size;
}
* cpu power than the other ones.
*
*/
-void MSG_task_set_priority(m_task_t task, double priority)
+void MSG_task_set_priority(m_task_t task, double priority)
{
- xbt_assert0((task != NULL) && (task->simdata != NULL), "Invalid parameter");
+ xbt_assert0((task != NULL)
+ && (task->simdata != NULL), "Invalid parameter");
- task->simdata->priority = 1/priority;
- if(task->simdata->compute)
- SIMIX_action_set_priority(task->simdata->compute, task->simdata->priority);
+ task->simdata->priority = 1 / priority;
+ if (task->simdata->compute)
+ SIMIX_action_set_priority(task->simdata->compute,
+ task->simdata->priority);
}
-
