* under the terms of the license (GNU LGPL) which comes with this package. */
#include "msg/private.h"
+#include "simix/private.h"
#include "xbt/sysdep.h"
+#include "mc/mc.h"
#include "xbt/log.h"
#include "mailbox.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_gos, msg,
- "Logging specific to MSG (gos)");
+ "Logging specific to MSG (gos)");
/** \ingroup msg_gos_functions
*
*/
MSG_error_t MSG_get_errno(void)
{
- return PROCESS_GET_ERRNO();
+ return PROCESS_GET_ERRNO();
}
/** \ingroup msg_gos_functions
* This function is used for describing the behavior of an agent. It
* takes only one parameter.
* \param task a #m_task_t to execute on the location on which the
- agent is running.
+ agent is running.
* \return #MSG_FATAL if \a task is not properly initialized and
* #MSG_OK otherwise.
*/
MSG_error_t MSG_task_execute(m_task_t task)
{
- simdata_task_t simdata = NULL;
- m_process_t self = MSG_process_self();
- e_surf_action_state_t state = SURF_ACTION_NOT_IN_THE_SYSTEM;
- CHECK_HOST();
+ simdata_task_t simdata = NULL;
+ m_process_t self = MSG_process_self();
+ e_surf_action_state_t state = SURF_ACTION_NOT_IN_THE_SYSTEM;
+ CHECK_HOST();
+
+ simdata = task->simdata;
+
+ xbt_assert0(simdata->host_nb==0, "This is a parallel task. Go to hell.");
+
#ifdef HAVE_TRACING
- TRACE_msg_task_execute_start (task);
+ TRACE_msg_task_execute_start (task);
#endif
- simdata = task->simdata;
-
- xbt_assert1((!simdata->compute) && (task->simdata->refcount == 1),
- "This task is executed somewhere else. Go fix your code! %d", task->simdata->refcount);
+ xbt_assert1((!simdata->compute) && (task->simdata->refcount == 1),
+ "This task is executed somewhere else. Go fix your code! %d", task->simdata->refcount);
- DEBUG1("Computing on %s", MSG_process_self()->simdata->m_host->name);
+ DEBUG1("Computing on %s", MSG_process_self()->simdata->m_host->name);
- if (simdata->computation_amount == 0) {
+ if (simdata->computation_amount == 0) {
#ifdef HAVE_TRACING
- TRACE_msg_task_execute_end (task);
+ TRACE_msg_task_execute_end (task);
#endif
- return MSG_OK;
- }
- simdata->refcount++;
- SIMIX_mutex_lock(simdata->mutex);
- simdata->compute =
- SIMIX_action_execute(SIMIX_host_self(), task->name,
- simdata->computation_amount);
- SIMIX_action_set_priority(simdata->compute, simdata->priority);
-
- /* changed to waiting action since we are always waiting one action (execute, communicate or sleep) */
- self->simdata->waiting_action = simdata->compute;
- SIMIX_register_action_to_condition(simdata->compute, simdata->cond);
- do {
- SIMIX_cond_wait(simdata->cond, simdata->mutex);
- state = SIMIX_action_get_state(simdata->compute);
- } while (state == SURF_ACTION_READY || state == SURF_ACTION_RUNNING);
- SIMIX_unregister_action_to_condition(simdata->compute, simdata->cond);
- self->simdata->waiting_action = NULL;
-
- SIMIX_mutex_unlock(simdata->mutex);
- simdata->refcount--;
-
- if (SIMIX_action_get_state(task->simdata->compute) == SURF_ACTION_DONE) {
- /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
- SIMIX_action_destroy(task->simdata->compute);
- simdata->computation_amount = 0.0;
- simdata->comm = NULL;
- simdata->compute = NULL;
+ return MSG_OK;
+ }
+ simdata->refcount++;
+ SIMIX_mutex_lock(simdata->mutex);
+ simdata->compute =
+ SIMIX_action_execute(SIMIX_host_self(), task->name,
+ simdata->computation_amount);
+ SIMIX_action_set_priority(simdata->compute, simdata->priority);
+
+ /* changed to waiting action since we are always waiting one action (execute, communicate or sleep) */
+ self->simdata->waiting_action = simdata->compute;
+ SIMIX_register_action_to_condition(simdata->compute, simdata->cond);
+ do {
+ SIMIX_cond_wait(simdata->cond, simdata->mutex);
+ state = SIMIX_action_get_state(simdata->compute);
+ } while (state == SURF_ACTION_READY || state == SURF_ACTION_RUNNING);
+ SIMIX_unregister_action_to_condition(simdata->compute, simdata->cond);
+ self->simdata->waiting_action = NULL;
+
+ SIMIX_mutex_unlock(simdata->mutex);
+ simdata->refcount--;
+
+ if (SIMIX_action_get_state(task->simdata->compute) == SURF_ACTION_DONE) {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->computation_amount = 0.0;
+ simdata->comm = NULL;
+ simdata->compute = NULL;
#ifdef HAVE_TRACING
- TRACE_msg_task_execute_end (task);
+ TRACE_msg_task_execute_end (task);
#endif
- MSG_RETURN(MSG_OK);
- } else if (SIMIX_host_get_state(SIMIX_host_self()) == 0) {
- /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
- SIMIX_action_destroy(task->simdata->compute);
- simdata->comm = NULL;
- simdata->compute = NULL;
+ MSG_RETURN(MSG_OK);
+ } else if (SIMIX_host_get_state(SIMIX_host_self()) == 0) {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->comm = NULL;
+ simdata->compute = NULL;
#ifdef HAVE_TRACING
- TRACE_msg_task_execute_end (task);
+ TRACE_msg_task_execute_end (task);
#endif
- MSG_RETURN(MSG_HOST_FAILURE);
- } else {
- /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
- SIMIX_action_destroy(task->simdata->compute);
- simdata->comm = NULL;
- simdata->compute = NULL;
+ MSG_RETURN(MSG_HOST_FAILURE);
+ } else {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->comm = NULL;
+ simdata->compute = NULL;
#ifdef HAVE_TRACING
- TRACE_msg_task_execute_end (task);
+ TRACE_msg_task_execute_end (task);
#endif
- MSG_RETURN(MSG_TASK_CANCELLED);
- }
+ MSG_RETURN(MSG_TASK_CANCELLED);
+ }
}
/** \ingroup m_task_management
* \brief Creates a new #m_task_t (a parallel one....).
*
* A constructor for #m_task_t taking six arguments and returning the
- corresponding object.
+ corresponding object.
* \param name a name for the object. It is for user-level information
- and can be NULL.
+ and can be NULL.
* \param host_nb the number of hosts implied in the parallel task.
* \param host_list an array of \p host_nb m_host_t.
* \param computation_amount an array of \p host_nb
- doubles. computation_amount[i] is the total number of operations
- that have to be performed on host_list[i].
+ doubles. computation_amount[i] is the total number of operations
+ that have to be performed on host_list[i].
* \param communication_amount an array of \p host_nb* \p host_nb doubles.
* \param data a pointer to any data may want to attach to the new
- object. It is for user-level information and can be NULL. It can
- be retrieved with the function \ref MSG_task_get_data.
+ object. It is for user-level information and can be NULL. It can
+ be retrieved with the function \ref MSG_task_get_data.
* \see m_task_t
* \return The new corresponding object.
*/
-m_task_t
+ m_task_t
MSG_parallel_task_create(const char *name, int host_nb,
- const m_host_t * host_list,
- double *computation_amount,
- double *communication_amount, void *data)
+ const m_host_t * host_list,
+ double *computation_amount,
+ double *communication_amount, void *data)
{
- int i;
- simdata_task_t simdata = xbt_new0(s_simdata_task_t, 1);
- m_task_t task = xbt_new0(s_m_task_t, 1);
- task->simdata = simdata;
-
- /* Task structure */
- task->name = xbt_strdup(name);
- task->data = data;
-
- /* Simulator Data */
- simdata->computation_amount = 0;
- simdata->message_size = 0;
- simdata->cond = SIMIX_cond_init();
- simdata->mutex = SIMIX_mutex_init();
- simdata->compute = NULL;
- simdata->comm = NULL;
- simdata->rate = -1.0;
- simdata->refcount = 1;
- simdata->sender = NULL;
- simdata->receiver = NULL;
- simdata->source = NULL;
-
- simdata->host_nb = host_nb;
- simdata->host_list = xbt_new0(smx_host_t, host_nb);
- simdata->comp_amount = computation_amount;
- simdata->comm_amount = communication_amount;
-
- for (i = 0; i < host_nb; i++)
- simdata->host_list[i] = host_list[i]->simdata->smx_host;
-
- return task;
+ int i;
+ simdata_task_t simdata = xbt_new0(s_simdata_task_t, 1);
+ m_task_t task = xbt_new0(s_m_task_t, 1);
+ task->simdata = simdata;
+
+ /* Task structure */
+ task->name = xbt_strdup(name);
+ task->data = data;
+
+ /* Simulator Data */
+ simdata->computation_amount = 0;
+ simdata->message_size = 0;
+ simdata->cond = SIMIX_cond_init();
+ simdata->mutex = SIMIX_mutex_init();
+ simdata->compute = NULL;
+ simdata->comm = NULL;
+ simdata->rate = -1.0;
+ simdata->refcount = 1;
+ simdata->sender = NULL;
+ simdata->receiver = NULL;
+ simdata->source = NULL;
+
+ simdata->host_nb = host_nb;
+ simdata->host_list = xbt_new0(smx_host_t, host_nb);
+ simdata->comp_amount = computation_amount;
+ simdata->comm_amount = communication_amount;
+
+ for (i = 0; i < host_nb; i++)
+ simdata->host_list[i] = host_list[i]->simdata->smx_host;
+
+ return task;
}
MSG_error_t MSG_parallel_task_execute(m_task_t task)
{
- simdata_task_t simdata = NULL;
- m_process_t self = MSG_process_self();
- e_surf_action_state_t state = SURF_ACTION_NOT_IN_THE_SYSTEM;
- CHECK_HOST();
-
- simdata = task->simdata;
-
- xbt_assert0((!simdata->compute)
- && (task->simdata->refcount == 1),
- "This task is executed somewhere else. Go fix your code!");
-
- xbt_assert0(simdata->host_nb, "This is not a parallel task. Go to hell.");
-
- DEBUG1("Computing on %s", MSG_process_self()->simdata->m_host->name);
-
- simdata->refcount++;
-
- SIMIX_mutex_lock(simdata->mutex);
- simdata->compute =
- SIMIX_action_parallel_execute(task->name, simdata->host_nb,
- simdata->host_list, simdata->comp_amount,
- simdata->comm_amount, 1.0, -1.0);
-
- self->simdata->waiting_action = simdata->compute;
- SIMIX_register_action_to_condition(simdata->compute, simdata->cond);
- do {
- SIMIX_cond_wait(simdata->cond, simdata->mutex);
- state = SIMIX_action_get_state(task->simdata->compute);
- } while (state == SURF_ACTION_READY || state == SURF_ACTION_RUNNING);
-
- SIMIX_unregister_action_to_condition(simdata->compute, simdata->cond);
- self->simdata->waiting_action = NULL;
-
-
- SIMIX_mutex_unlock(simdata->mutex);
- simdata->refcount--;
-
- if (SIMIX_action_get_state(task->simdata->compute) == SURF_ACTION_DONE) {
- /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
- SIMIX_action_destroy(task->simdata->compute);
- simdata->computation_amount = 0.0;
- simdata->comm = NULL;
- simdata->compute = NULL;
- MSG_RETURN(MSG_OK);
- } else if (SIMIX_host_get_state(SIMIX_host_self()) == 0) {
- /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
- SIMIX_action_destroy(task->simdata->compute);
- simdata->comm = NULL;
- simdata->compute = NULL;
- MSG_RETURN(MSG_HOST_FAILURE);
- } else {
- /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
- SIMIX_action_destroy(task->simdata->compute);
- simdata->comm = NULL;
- simdata->compute = NULL;
- MSG_RETURN(MSG_TASK_CANCELLED);
- }
+ simdata_task_t simdata = NULL;
+ m_process_t self = MSG_process_self();
+ e_surf_action_state_t state = SURF_ACTION_NOT_IN_THE_SYSTEM;
+ CHECK_HOST();
+
+ simdata = task->simdata;
+
+ xbt_assert0((!simdata->compute)
+ && (task->simdata->refcount == 1),
+ "This task is executed somewhere else. Go fix your code!");
+
+ xbt_assert0(simdata->host_nb, "This is not a parallel task. Go to hell.");
+
+ DEBUG1("Computing on %s", MSG_process_self()->simdata->m_host->name);
+
+ simdata->refcount++;
+
+ SIMIX_mutex_lock(simdata->mutex);
+ simdata->compute =
+ SIMIX_action_parallel_execute(task->name, simdata->host_nb,
+ simdata->host_list, simdata->comp_amount,
+ simdata->comm_amount, 1.0, -1.0);
+
+ self->simdata->waiting_action = simdata->compute;
+ SIMIX_register_action_to_condition(simdata->compute, simdata->cond);
+ do {
+ SIMIX_cond_wait(simdata->cond, simdata->mutex);
+ state = SIMIX_action_get_state(task->simdata->compute);
+ } while (state == SURF_ACTION_READY || state == SURF_ACTION_RUNNING);
+
+ SIMIX_unregister_action_to_condition(simdata->compute, simdata->cond);
+ self->simdata->waiting_action = NULL;
+
+
+ SIMIX_mutex_unlock(simdata->mutex);
+ simdata->refcount--;
+
+ if (SIMIX_action_get_state(task->simdata->compute) == SURF_ACTION_DONE) {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->computation_amount = 0.0;
+ simdata->comm = NULL;
+ simdata->compute = NULL;
+ MSG_RETURN(MSG_OK);
+ } else if (SIMIX_host_get_state(SIMIX_host_self()) == 0) {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->comm = NULL;
+ simdata->compute = NULL;
+ MSG_RETURN(MSG_HOST_FAILURE);
+ } else {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->comm = NULL;
+ simdata->compute = NULL;
+ MSG_RETURN(MSG_TASK_CANCELLED);
+ }
}
*/
MSG_error_t MSG_process_sleep(double nb_sec)
{
- smx_action_t act_sleep;
- m_process_t proc = MSG_process_self();
- e_surf_action_state_t state = SURF_ACTION_NOT_IN_THE_SYSTEM;
- smx_mutex_t mutex;
- smx_cond_t cond;
+ smx_action_t act_sleep;
+ m_process_t proc = MSG_process_self();
+ e_surf_action_state_t state = SURF_ACTION_NOT_IN_THE_SYSTEM;
+ smx_mutex_t mutex;
+ smx_cond_t cond;
#ifdef HAVE_TRACING
- TRACE_msg_process_sleep_in (MSG_process_self());
+ TRACE_msg_process_sleep_in (MSG_process_self());
#endif
- /* create action to sleep */
- act_sleep =
- SIMIX_action_sleep(SIMIX_process_get_host(proc->simdata->s_process),
- nb_sec);
-
- mutex = SIMIX_mutex_init();
- SIMIX_mutex_lock(mutex);
-
- /* create conditional and register action to it */
- cond = SIMIX_cond_init();
-
- proc->simdata->waiting_action = act_sleep;
- SIMIX_register_action_to_condition(act_sleep, cond);
- do {
- SIMIX_cond_wait(cond, mutex);
- state = SIMIX_action_get_state(act_sleep);
- } while (state == SURF_ACTION_READY || state == SURF_ACTION_RUNNING);
- proc->simdata->waiting_action = NULL;
- SIMIX_unregister_action_to_condition(act_sleep, cond);
- SIMIX_mutex_unlock(mutex);
-
- /* remove variables */
- SIMIX_cond_destroy(cond);
- SIMIX_mutex_destroy(mutex);
-
- if (SIMIX_action_get_state(act_sleep) == SURF_ACTION_DONE) {
- if (SIMIX_host_get_state(SIMIX_host_self()) == SURF_RESOURCE_OFF) {
- SIMIX_action_destroy(act_sleep);
+ /* create action to sleep */
+ act_sleep =
+ SIMIX_action_sleep(SIMIX_process_get_host(proc->simdata->s_process),
+ nb_sec);
+
+ mutex = SIMIX_mutex_init();
+ SIMIX_mutex_lock(mutex);
+
+ /* create conditional and register action to it */
+ cond = SIMIX_cond_init();
+
+ proc->simdata->waiting_action = act_sleep;
+ SIMIX_register_action_to_condition(act_sleep, cond);
+ do {
+ SIMIX_cond_wait(cond, mutex);
+ state = SIMIX_action_get_state(act_sleep);
+ } while (state == SURF_ACTION_READY || state == SURF_ACTION_RUNNING);
+ proc->simdata->waiting_action = NULL;
+ SIMIX_unregister_action_to_condition(act_sleep, cond);
+ SIMIX_mutex_unlock(mutex);
+
+ /* remove variables */
+ SIMIX_cond_destroy(cond);
+ SIMIX_mutex_destroy(mutex);
+
+ if (SIMIX_action_get_state(act_sleep) == SURF_ACTION_DONE) {
+ if (SIMIX_host_get_state(SIMIX_host_self()) == SURF_RESOURCE_OFF) {
+ SIMIX_action_destroy(act_sleep);
#ifdef HAVE_TRACING
- TRACE_msg_process_sleep_out (MSG_process_self());
+ TRACE_msg_process_sleep_out (MSG_process_self());
#endif
- MSG_RETURN(MSG_HOST_FAILURE);
- }
- } else {
- SIMIX_action_destroy(act_sleep);
+ MSG_RETURN(MSG_HOST_FAILURE);
+ }
+ } else {
+ SIMIX_action_destroy(act_sleep);
#ifdef HAVE_TRACING
- TRACE_msg_process_sleep_out (MSG_process_self());
+ TRACE_msg_process_sleep_out (MSG_process_self());
#endif
- MSG_RETURN(MSG_HOST_FAILURE);
- }
+ MSG_RETURN(MSG_HOST_FAILURE);
+ }
- SIMIX_action_destroy(act_sleep);
+ SIMIX_action_destroy(act_sleep);
#ifdef HAVE_TRACING
- TRACE_msg_process_sleep_out (MSG_process_self());
+ TRACE_msg_process_sleep_out (MSG_process_self());
#endif
- MSG_RETURN(MSG_OK);
+ MSG_RETURN(MSG_OK);
}
/** \ingroup msg_gos_functions
*
* It takes three parameters.
* \param task a memory location for storing a #m_task_t. It will
- hold a task when this function will return. Thus \a task should not
- be equal to \c NULL and \a *task should be equal to \c NULL. If one of
- those two condition does not hold, there will be a warning message.
+ hold a task when this function will return. Thus \a task should not
+ be equal to \c NULL and \a *task should be equal to \c NULL. If one of
+ those two condition does not hold, there will be a warning message.
* \param channel the channel on which the agent should be
- listening. This value has to be >=0 and < than the maximal
- number of channels fixed with MSG_set_channel_number().
+ listening. This value has to be >=0 and < than the maximal
+ number of channels fixed with MSG_set_channel_number().
* \param host the host that is to be watched.
* \return #MSG_FATAL if \a task is equal to \c NULL, #MSG_WARNING
- if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
+ if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
*/
-MSG_error_t
+ MSG_error_t
MSG_task_get_from_host(m_task_t * task, m_channel_t channel, m_host_t host)
{
- return MSG_task_get_ext(task, channel, -1, host);
+ return MSG_task_get_ext(task, channel, -1, host);
}
/** \ingroup msg_gos_functions
*
* It takes two parameters.
* \param task a memory location for storing a #m_task_t. It will
- hold a task when this function will return. Thus \a task should not
- be equal to \c NULL and \a *task should be equal to \c NULL. If one of
- those two condition does not hold, there will be a warning message.
+ hold a task when this function will return. Thus \a task should not
+ be equal to \c NULL and \a *task should be equal to \c NULL. If one of
+ those two condition does not hold, there will be a warning message.
* \param channel the channel on which the agent should be
- listening. This value has to be >=0 and < than the maximal
- number of channels fixed with MSG_set_channel_number().
+ listening. This value has to be >=0 and < than the maximal
+ number of channels fixed with MSG_set_channel_number().
* \return #MSG_FATAL if \a task is equal to \c NULL, #MSG_WARNING
* if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
*/
MSG_error_t MSG_task_get(m_task_t * task, m_channel_t channel)
{
- return MSG_task_get_with_timeout(task, channel, -1);
+ return MSG_task_get_with_timeout(task, channel, -1);
}
/** \ingroup msg_gos_functions
*
* It takes three parameters.
* \param task a memory location for storing a #m_task_t. It will
- hold a task when this function will return. Thus \a task should not
- be equal to \c NULL and \a *task should be equal to \c NULL. If one of
- those two condition does not hold, there will be a warning message.
+ hold a task when this function will return. Thus \a task should not
+ be equal to \c NULL and \a *task should be equal to \c NULL. If one of
+ those two condition does not hold, there will be a warning message.
* \param channel the channel on which the agent should be
- listening. This value has to be >=0 and < than the maximal
- number of channels fixed with MSG_set_channel_number().
+ listening. This value has to be >=0 and < than the maximal
+ number of channels fixed with MSG_set_channel_number().
* \param max_duration the maximum time to wait for a task before giving
- up. In such a case, #MSG_TRANSFER_FAILURE will be returned, \a task
- will not be modified and will still be
- equal to \c NULL when returning.
+ up. In such a case, #MSG_TRANSFER_FAILURE will be returned, \a task
+ will not be modified and will still be
+ equal to \c NULL when returning.
* \return #MSG_FATAL if \a task is equal to \c NULL, #MSG_WARNING
- if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
+ if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
*/
-MSG_error_t
+ MSG_error_t
MSG_task_get_with_timeout(m_task_t * task, m_channel_t channel,
- double max_duration)
+ double max_duration)
{
- return MSG_task_get_ext(task, channel, max_duration, NULL);
+ return MSG_task_get_ext(task, channel, max_duration, NULL);
}
/** \defgroup msg_gos_functions MSG Operating System Functions
* by an agent for handling some task.
*/
-MSG_error_t
+ MSG_error_t
MSG_task_get_ext(m_task_t * task, m_channel_t channel, double timeout,
- m_host_t host)
+ m_host_t host)
{
- xbt_assert1((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+ xbt_assert1((channel >= 0)
+ && (channel < msg_global->max_channel), "Invalid channel %d",
+ channel);
- return
- MSG_mailbox_get_task_ext(MSG_mailbox_get_by_channel
- (MSG_host_self(), channel), task, host, timeout);
+ return
+ MSG_mailbox_get_task_ext(MSG_mailbox_get_by_channel
+ (MSG_host_self(), channel), task, host, timeout);
}
-MSG_error_t
+ MSG_error_t
MSG_task_receive_from_host(m_task_t * task, const char *alias, m_host_t host)
{
- return MSG_task_receive_ext(task, alias, -1, host);
+ return MSG_task_receive_ext(task, alias, -1, host);
}
MSG_error_t MSG_task_receive(m_task_t * task, const char *alias)
{
- return MSG_task_receive_with_timeout(task, alias, -1);
+ return MSG_task_receive_with_timeout(task, alias, -1);
}
-MSG_error_t
+ MSG_error_t
MSG_task_receive_with_timeout(m_task_t * task, const char *alias,
- double timeout)
+ double timeout)
{
- return MSG_task_receive_ext(task, alias, timeout, NULL);
+ return MSG_task_receive_ext(task, alias, timeout, NULL);
}
-MSG_error_t
+ MSG_error_t
MSG_task_receive_ext(m_task_t * task, const char *alias, double timeout,
- m_host_t host)
+ m_host_t host)
{
- return MSG_mailbox_get_task_ext(MSG_mailbox_get_by_alias(alias), task, host,
- timeout);
+ return MSG_mailbox_get_task_ext(MSG_mailbox_get_by_alias(alias), task, host,
+ timeout);
}
msg_comm_t MSG_task_isend(m_task_t task, const char *alias) {
- simdata_task_t t_simdata = NULL;
- m_process_t process = MSG_process_self();
- msg_mailbox_t mailbox = MSG_mailbox_get_by_alias(alias);
-
- CHECK_HOST();
+ simdata_task_t t_simdata = NULL;
+ m_process_t process = MSG_process_self();
+ msg_mailbox_t mailbox = MSG_mailbox_get_by_alias(alias);
- /* FIXME: these functions are not tracable */
+ CHECK_HOST();
- /* Prepare the task to send */
- t_simdata = task->simdata;
- t_simdata->sender = process;
- t_simdata->source = MSG_host_self();
+ /* FIXME: these functions are not tracable */
- xbt_assert0(t_simdata->refcount == 1,
- "This task is still being used somewhere else. You cannot send it now. Go fix your code!");
+ /* Prepare the task to send */
+ t_simdata = task->simdata;
+ t_simdata->sender = process;
+ t_simdata->source = MSG_host_self();
- t_simdata->refcount++;
- msg_global->sent_msg++;
+ xbt_assert0(t_simdata->refcount == 1,
+ "This task is still being used somewhere else. You cannot send it now. Go fix your code!");
- process->simdata->waiting_task = task;
+ t_simdata->refcount++;
+ msg_global->sent_msg++;
+ process->simdata->waiting_task = task;
- /* Send it by calling SIMIX network layer */
+ /* Send it by calling SIMIX network layer */
- /* Kept for semantical compatibility with older implementation */
- if(mailbox->cond)
- SIMIX_cond_signal(mailbox->cond);
+ /* Kept for semantical compatibility with older implementation */
+ if(mailbox->cond)
+ SIMIX_cond_signal(mailbox->cond);
- return SIMIX_network_isend(mailbox->rdv, t_simdata->message_size, t_simdata->rate,
- task, sizeof(void*), &t_simdata->comm);
+ return SIMIX_network_isend(mailbox->rdv, t_simdata->message_size, t_simdata->rate,
+ task, sizeof(void*), &t_simdata->comm);
}
msg_comm_t MSG_task_irecv(m_task_t * task, const char *alias) {
- smx_comm_t comm;
- smx_rdv_t rdv = MSG_mailbox_get_by_alias(alias)->rdv;
- msg_mailbox_t mailbox=MSG_mailbox_get_by_alias(alias);
- size_t size = sizeof(void*);
+ smx_comm_t comm;
+ smx_rdv_t rdv = MSG_mailbox_get_by_alias(alias)->rdv;
+ msg_mailbox_t mailbox=MSG_mailbox_get_by_alias(alias);
+ size_t size = sizeof(void*);
- CHECK_HOST();
+ CHECK_HOST();
- /* FIXME: these functions are not tracable */
+ /* FIXME: these functions are not tracable */
- memset(&comm,0,sizeof(comm));
+ memset(&comm,0,sizeof(comm));
- /* Kept for compatibility with older implementation */
- xbt_assert1(!MSG_mailbox_get_cond(mailbox),
- "A process is already blocked on this channel %s",
- MSG_mailbox_get_alias(mailbox));
+ /* Kept for compatibility with older implementation */
+ xbt_assert1(!MSG_mailbox_get_cond(mailbox),
+ "A process is already blocked on this channel %s",
+ MSG_mailbox_get_alias(mailbox));
- /* Sanity check */
- xbt_assert0(task, "Null pointer for the task storage");
+ /* Sanity check */
+ xbt_assert0(task, "Null pointer for the task storage");
- if (*task)
- CRITICAL0("MSG_task_get() was asked to write in a non empty task struct.");
+ if (*task)
+ CRITICAL0("MSG_task_get() was asked to write in a non empty task struct.");
- /* Try to receive it by calling SIMIX network layer */
- return SIMIX_network_irecv(rdv, task, &size);
+ /* Try to receive it by calling SIMIX network layer */
+ return SIMIX_network_irecv(rdv, task, &size);
}
+
int MSG_comm_test(msg_comm_t comm) {
- return SIMIX_network_test(comm);
-}
-MSG_error_t MSG_comm_wait(msg_comm_t comm,double timeout) {
- xbt_ex_t e;
- MSG_error_t res = MSG_OK;
- TRY {
- SIMIX_network_wait(comm,timeout);
- // (*task)->simdata->refcount--;
-
- /* FIXME: these functions are not tracable */
- } CATCH(e){
- switch(e.category){
- case host_error:
- res = MSG_HOST_FAILURE;
- break;
- case network_error:
- res = MSG_TRANSFER_FAILURE;
- break;
- case timeout_error:
- res = MSG_TIMEOUT;
- break;
- default:
- xbt_die(bprintf("Unhandled SIMIX network exception: %s",e.msg));
- }
- xbt_ex_free(e);
- }
- return res;
+ return SIMIX_network_test(comm);
+}
+
+/* After received TRUE to MSG_comm_test() function we have to destroy the communication */
+void MSG_comm_destroy(msg_comm_t comm) {
+ if(!(comm->src_proc == SIMIX_process_self()))
+ {
+ m_task_t task;
+ task = (m_task_t) SIMIX_communication_get_src_buf(comm);
+ task->simdata->refcount--;
+ }
+ SIMIX_communication_destroy(comm);
+}
+
+MSG_error_t MSG_comm_wait(msg_comm_t comm, double timeout) {
+ xbt_ex_t e;
+ MSG_error_t res = MSG_OK;
+ TRY {
+ SIMIX_network_wait(comm,timeout);
+
+ if(!(comm->src_proc == SIMIX_process_self()))
+ {
+ m_task_t task;
+ task = (m_task_t) SIMIX_communication_get_src_buf(comm);
+ task->simdata->refcount--;
+ }
+
+ /* FIXME: these functions are not tracable */
+ } CATCH(e){
+ switch(e.category){
+ case host_error:
+ res = MSG_HOST_FAILURE;
+ break;
+ case network_error:
+ res = MSG_TRANSFER_FAILURE;
+ break;
+ case timeout_error:
+ res = MSG_TIMEOUT;
+ break;
+ default:
+ xbt_die(bprintf("Unhandled SIMIX network exception: %s",e.msg));
+ }
+ xbt_ex_free(e);
+ }
+ return res;
+}
+
+
+/* This function is called by a sender and permit to wait for each communication
+ *
+ * Param:
+ * - msg_comm_t *comm a vector of communication
+ * - int nb_elem is th esize of the comm vector
+ * - timeout for each call of MSG_comm_wait
+ */
+
+void MSG_comm_waitall(msg_comm_t *comm,int nb_elem, double timeout) {
+ int i=0;
+ for(i=0; i<nb_elem; i++)
+ {
+ MSG_comm_wait(comm[i],timeout);
+ }
+}
+
+int MSG_comm_waitany(xbt_dynar_t comms) {
+ return SIMIX_network_waitany(comms);
+}
+
+m_task_t MSG_comm_get_task(msg_comm_t comm) {
+ xbt_assert0(comm, "Invalid parameters");
+ return (m_task_t) SIMIX_communication_get_src_buf(comm);
}
/** \ingroup msg_gos_functions
* This function is used for describing the behavior of an agent. It
* takes three parameter.
* \param task a #m_task_t to send on another location. This task
- will not be usable anymore when the function will return. There is
- no automatic task duplication and you have to save your parameters
- before calling this function. Tasks are unique and once it has been
- sent to another location, you should not access it anymore. You do
- not need to call MSG_task_destroy() but to avoid using, as an
- effect of inattention, this task anymore, you definitely should
- renitialize it with #MSG_TASK_UNINITIALIZED. Note that this task
- can be transfered iff it has been correctly created with
- MSG_task_create().
+ will not be usable anymore when the function will return. There is
+ no automatic task duplication and you have to save your parameters
+ before calling this function. Tasks are unique and once it has been
+ sent to another location, you should not access it anymore. You do
+ not need to call MSG_task_destroy() but to avoid using, as an
+ effect of inattention, this task anymore, you definitely should
+ renitialize it with #MSG_TASK_UNINITIALIZED. Note that this task
+ can be transfered iff it has been correctly created with
+ MSG_task_create().
* \param dest the destination of the message
* \param channel the channel on which the agent should put this
- task. This value has to be >=0 and < than the maximal number of
- channels fixed with MSG_set_channel_number().
+ task. This value has to be >=0 and < than the maximal number of
+ channels fixed with MSG_set_channel_number().
* \return #MSG_FATAL if \a task is not properly initialized and
* #MSG_OK otherwise. Returns #MSG_HOST_FAILURE if the host on which
* this function was called was shut down. Returns
*/
MSG_error_t MSG_task_put(m_task_t task, m_host_t dest, m_channel_t channel)
{
- return MSG_task_put_with_timeout(task, dest, channel, -1.0);
+ return MSG_task_put_with_timeout(task, dest, channel, -1.0);
}
/** \ingroup msg_gos_functions
*
* \sa MSG_task_put
*/
-MSG_error_t
+ MSG_error_t
MSG_task_put_bounded(m_task_t task, m_host_t dest, m_channel_t channel,
- double maxrate)
+ double maxrate)
{
- task->simdata->rate = maxrate;
- return MSG_task_put(task, dest, channel);
+ task->simdata->rate = maxrate;
+ return MSG_task_put(task, dest, channel);
}
/** \ingroup msg_gos_functions \brief Put a task on a channel of an
* This function is used for describing the behavior of an agent. It
* takes four parameter.
* \param task a #m_task_t to send on another location. This task
- will not be usable anymore when the function will return. There is
- no automatic task duplication and you have to save your parameters
- before calling this function. Tasks are unique and once it has been
- sent to another location, you should not access it anymore. You do
- not need to call MSG_task_destroy() but to avoid using, as an
- effect of inattention, this task anymore, you definitely should
- renitialize it with #MSG_TASK_UNINITIALIZED. Note that this task
- can be transfered iff it has been correctly created with
- MSG_task_create().
+ will not be usable anymore when the function will return. There is
+ no automatic task duplication and you have to save your parameters
+ before calling this function. Tasks are unique and once it has been
+ sent to another location, you should not access it anymore. You do
+ not need to call MSG_task_destroy() but to avoid using, as an
+ effect of inattention, this task anymore, you definitely should
+ renitialize it with #MSG_TASK_UNINITIALIZED. Note that this task
+ can be transfered iff it has been correctly created with
+ MSG_task_create().
* \param dest the destination of the message
* \param channel the channel on which the agent should put this
- task. This value has to be >=0 and < than the maximal number of
- channels fixed with MSG_set_channel_number().
+ task. This value has to be >=0 and < than the maximal number of
+ channels fixed with MSG_set_channel_number().
* \param timeout the maximum time to wait for a task before giving
- up. In such a case, #MSG_TRANSFER_FAILURE will be returned, \a task
- will not be modified
+ up. In such a case, #MSG_TRANSFER_FAILURE will be returned, \a task
+ will not be modified
* \return #MSG_FATAL if \a task is not properly initialized and
- #MSG_OK otherwise. Returns #MSG_HOST_FAILURE if the host on which
- this function was called was shut down. Returns
- #MSG_TRANSFER_FAILURE if the transfer could not be properly done
- (network failure, dest failure, timeout...)
+#MSG_OK otherwise. Returns #MSG_HOST_FAILURE if the host on which
+this function was called was shut down. Returns
+#MSG_TRANSFER_FAILURE if the transfer could not be properly done
+(network failure, dest failure, timeout...)
*/
-MSG_error_t
+ MSG_error_t
MSG_task_put_with_timeout(m_task_t task, m_host_t dest, m_channel_t channel,
- double timeout)
+ double timeout)
{
- xbt_assert1((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+ xbt_assert1((channel >= 0)
+ && (channel < msg_global->max_channel), "Invalid channel %d",
+ channel);
- return
- MSG_mailbox_put_with_timeout(MSG_mailbox_get_by_channel(dest, channel),
- task, timeout);
+ return
+ MSG_mailbox_put_with_timeout(MSG_mailbox_get_by_channel(dest, channel),
+ task, timeout);
}
MSG_error_t MSG_task_send(m_task_t task, const char *alias)
{
- return MSG_task_send_with_timeout(task, alias, -1);
+ return MSG_task_send_with_timeout(task, alias, -1);
}
-MSG_error_t
+ MSG_error_t
MSG_task_send_bounded(m_task_t task, const char *alias, double maxrate)
{
- task->simdata->rate = maxrate;
- return MSG_task_send(task, alias);
+ task->simdata->rate = maxrate;
+ return MSG_task_send(task, alias);
}
-MSG_error_t
+ MSG_error_t
MSG_task_send_with_timeout(m_task_t task, const char *alias, double timeout)
{
- return MSG_mailbox_put_with_timeout(MSG_mailbox_get_by_alias(alias), task,
- timeout);
+ return MSG_mailbox_put_with_timeout(MSG_mailbox_get_by_alias(alias), task,
+ timeout);
}
int MSG_task_listen(const char *alias)
{
- CHECK_HOST();
+ CHECK_HOST();
- return !MSG_mailbox_is_empty(MSG_mailbox_get_by_alias(alias));
+ return !MSG_mailbox_is_empty(MSG_mailbox_get_by_alias(alias));
}
/** \ingroup msg_gos_functions
*
* It takes one parameter.
* \param channel the channel on which the agent should be
- listening. This value has to be >=0 and < than the maximal
- number of channels fixed with MSG_set_channel_number().
+ listening. This value has to be >=0 and < than the maximal
+ number of channels fixed with MSG_set_channel_number().
* \return 1 if there is a pending communication and 0 otherwise
*/
int MSG_task_Iprobe(m_channel_t channel)
{
- xbt_assert1((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+ xbt_assert1((channel >= 0)
+ && (channel < msg_global->max_channel), "Invalid channel %d",
+ channel);
- CHECK_HOST();
+ CHECK_HOST();
- return
- !MSG_mailbox_is_empty(MSG_mailbox_get_by_channel
- (MSG_host_self(), channel));
+ return
+ !MSG_mailbox_is_empty(MSG_mailbox_get_by_channel
+ (MSG_host_self(), channel));
}
/** \ingroup msg_gos_functions
* \brief Return the number of tasks waiting to be received on a \a
- channel and sent by \a host.
+ channel and sent by \a host.
*
* It takes two parameters.
* \param channel the channel on which the agent should be
- listening. This value has to be >=0 and < than the maximal
- number of channels fixed with MSG_set_channel_number().
+ listening. This value has to be >=0 and < than the maximal
+ number of channels fixed with MSG_set_channel_number().
* \param host the host that is to be watched.
* \return the number of tasks waiting to be received on \a channel
- and sent by \a host.
+ and sent by \a host.
*/
int MSG_task_probe_from_host(int channel, m_host_t host)
{
- xbt_assert1((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+ xbt_assert1((channel >= 0)
+ && (channel < msg_global->max_channel), "Invalid channel %d",
+ channel);
- CHECK_HOST();
+ CHECK_HOST();
- return
- MSG_mailbox_get_count_host_waiting_tasks(MSG_mailbox_get_by_channel
- (MSG_host_self(), channel),
- host);
+ return
+ MSG_mailbox_get_count_host_waiting_tasks(MSG_mailbox_get_by_channel
+ (MSG_host_self(), channel),
+ host);
}
int MSG_task_listen_from_host(const char *alias, m_host_t host)
{
- CHECK_HOST();
+ CHECK_HOST();
- return
- MSG_mailbox_get_count_host_waiting_tasks(MSG_mailbox_get_by_alias(alias),
- host);
+ return
+ MSG_mailbox_get_count_host_waiting_tasks(MSG_mailbox_get_by_alias(alias),
+ host);
}
/** \ingroup msg_gos_functions
*
* It takes one parameter.
* \param channel the channel on which the agent should be
- listening. This value has to be >=0 and < than the maximal
- number of channels fixed with MSG_set_channel_number().
+ listening. This value has to be >=0 and < than the maximal
+ number of channels fixed with MSG_set_channel_number().
* \return -1 if there is no pending communication and the PID of the process who sent it otherwise
*/
int MSG_task_probe_from(m_channel_t channel)
{
- m_task_t task;
+ m_task_t task;
- CHECK_HOST();
+ CHECK_HOST();
- xbt_assert1((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+ xbt_assert1((channel >= 0)
+ && (channel < msg_global->max_channel), "Invalid channel %d",
+ channel);
- if (NULL ==
- (task =
- MSG_mailbox_get_head(MSG_mailbox_get_by_channel
- (MSG_host_self(), channel))))
- return -1;
+ if (NULL ==
+ (task =
+ MSG_mailbox_get_head(MSG_mailbox_get_by_channel
+ (MSG_host_self(), channel))))
+ return -1;
- return MSG_process_get_PID(task->simdata->sender);
+ return MSG_process_get_PID(task->simdata->sender);
}
int MSG_task_listen_from(const char *alias)
{
- m_task_t task;
+ m_task_t task;
- CHECK_HOST();
+ CHECK_HOST();
- if (NULL == (task = MSG_mailbox_get_head(MSG_mailbox_get_by_alias(alias))))
- return -1;
+ if (NULL == (task = MSG_mailbox_get_head(MSG_mailbox_get_by_alias(alias))))
+ return -1;
- return MSG_process_get_PID(task->simdata->sender);
+ return MSG_process_get_PID(task->simdata->sender);
}
/** \ingroup msg_gos_functions
* \brief Wait for at most \a max_duration second for a task reception
- on \a channel.
+ on \a channel.
* \a PID is updated with the PID of the first process that triggered this event if any.
*
* It takes three parameters:
* \param channel the channel on which the agent should be
- listening. This value has to be >=0 and < than the maximal.
- number of channels fixed with MSG_set_channel_number().
+ listening. This value has to be >=0 and < than the maximal.
+ number of channels fixed with MSG_set_channel_number().
* \param PID a memory location for storing an int.
* \param timeout the maximum time to wait for a task before
- giving up. In the case of a reception, *\a PID will be updated
- with the PID of the first process to send a task.
+ giving up. In the case of a reception, *\a PID will be updated
+ with the PID of the first process to send a task.
* \return #MSG_HOST_FAILURE if the host is shut down in the meantime
- and #MSG_OK otherwise.
+ and #MSG_OK otherwise.
*/
-MSG_error_t
+ MSG_error_t
MSG_channel_select_from(m_channel_t channel, double timeout, int *PID)
{
- m_host_t h = NULL;
- simdata_host_t h_simdata = NULL;
- m_task_t t;
- int first_time = 1;
- smx_cond_t cond;
- msg_mailbox_t mailbox;
+ m_host_t h = NULL;
+ simdata_host_t h_simdata = NULL;
+ m_task_t t;
+ int first_time = 1;
+ smx_cond_t cond;
+ msg_mailbox_t mailbox;
- xbt_assert1((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+ xbt_assert1((channel >= 0)
+ && (channel < msg_global->max_channel), "Invalid channel %d",
+ channel);
- if (PID) {
- *PID = -1;
- }
+ if (PID) {
+ *PID = -1;
+ }
- if (timeout == 0.0) {
- *PID = MSG_task_probe_from(channel);
- MSG_RETURN(MSG_OK);
- } else {
- CHECK_HOST();
- h = MSG_host_self();
- h_simdata = h->simdata;
+ if (timeout == 0.0) {
+ *PID = MSG_task_probe_from(channel);
+ MSG_RETURN(MSG_OK);
+ } else {
+ CHECK_HOST();
+ h = MSG_host_self();
+ h_simdata = h->simdata;
- mailbox = MSG_mailbox_get_by_channel(MSG_host_self(), channel);
+ mailbox = MSG_mailbox_get_by_channel(MSG_host_self(), channel);
- while (MSG_mailbox_is_empty(mailbox)) {
- if (timeout > 0) {
- if (!first_time) {
- MSG_RETURN(MSG_OK);
- }
- }
+ while (MSG_mailbox_is_empty(mailbox)) {
+ if (timeout > 0) {
+ if (!first_time) {
+ MSG_RETURN(MSG_OK);
+ }
+ }
- SIMIX_mutex_lock(h_simdata->mutex);
+ SIMIX_mutex_lock(h_simdata->mutex);
- xbt_assert1(!MSG_mailbox_get_cond(mailbox),
- "A process is already blocked on this channel %d", channel);
+ xbt_assert1(!MSG_mailbox_get_cond(mailbox),
+ "A process is already blocked on this channel %d", channel);
- cond = SIMIX_cond_init();
+ cond = SIMIX_cond_init();
- MSG_mailbox_set_cond(mailbox, cond);
+ MSG_mailbox_set_cond(mailbox, cond);
- if (timeout > 0) {
- SIMIX_cond_wait_timeout(cond, h_simdata->mutex, timeout);
- } else {
- SIMIX_cond_wait(cond, h_simdata->mutex);
- }
+ if (timeout > 0) {
+ SIMIX_cond_wait_timeout(cond, h_simdata->mutex, timeout);
+ } else {
+ SIMIX_cond_wait(cond, h_simdata->mutex);
+ }
- SIMIX_cond_destroy(cond);
- SIMIX_mutex_unlock(h_simdata->mutex);
+ SIMIX_cond_destroy(cond);
+ SIMIX_mutex_unlock(h_simdata->mutex);
- if (SIMIX_host_get_state(h_simdata->smx_host) == 0) {
- MSG_RETURN(MSG_HOST_FAILURE);
- }
+ if (SIMIX_host_get_state(h_simdata->smx_host) == 0) {
+ MSG_RETURN(MSG_HOST_FAILURE);
+ }
- MSG_mailbox_set_cond(mailbox, NULL);
- first_time = 0;
- }
+ MSG_mailbox_set_cond(mailbox, NULL);
+ first_time = 0;
+ }
- if (NULL == (t = MSG_mailbox_get_head(mailbox)))
- MSG_RETURN(MSG_OK);
+ if (NULL == (t = MSG_mailbox_get_head(mailbox)))
+ MSG_RETURN(MSG_OK);
- if (PID) {
- *PID = MSG_process_get_PID(t->simdata->sender);
- }
+ if (PID) {
+ *PID = MSG_process_get_PID(t->simdata->sender);
+ }
- MSG_RETURN(MSG_OK);
- }
+ MSG_RETURN(MSG_OK);
+ }
}
MSG_error_t MSG_alias_select_from(const char *alias, double timeout, int *PID)
{
- m_host_t h = NULL;
- simdata_host_t h_simdata = NULL;
- m_task_t t;
- int first_time = 1;
- smx_cond_t cond;
- msg_mailbox_t mailbox;
+ m_host_t h = NULL;
+ simdata_host_t h_simdata = NULL;
+ m_task_t t;
+ int first_time = 1;
+ smx_cond_t cond;
+ msg_mailbox_t mailbox;
- if (PID) {
- *PID = -1;
- }
+ if (PID) {
+ *PID = -1;
+ }
- if (timeout == 0.0) {
- *PID = MSG_task_listen_from(alias);
- MSG_RETURN(MSG_OK);
- } else {
- CHECK_HOST();
- h = MSG_host_self();
- h_simdata = h->simdata;
+ if (timeout == 0.0) {
+ *PID = MSG_task_listen_from(alias);
+ MSG_RETURN(MSG_OK);
+ } else {
+ CHECK_HOST();
+ h = MSG_host_self();
+ h_simdata = h->simdata;
- DEBUG2("Probing on alias %s (%s)", alias, h->name);
+ DEBUG2("Probing on alias %s (%s)", alias, h->name);
- mailbox = MSG_mailbox_get_by_alias(alias);
+ mailbox = MSG_mailbox_get_by_alias(alias);
- while (MSG_mailbox_is_empty(mailbox)) {
- if (timeout > 0) {
- if (!first_time) {
- MSG_RETURN(MSG_OK);
- }
- }
+ while (MSG_mailbox_is_empty(mailbox)) {
+ if (timeout > 0) {
+ if (!first_time) {
+ MSG_RETURN(MSG_OK);
+ }
+ }
- SIMIX_mutex_lock(h_simdata->mutex);
+ SIMIX_mutex_lock(h_simdata->mutex);
- xbt_assert1(!MSG_mailbox_get_cond(mailbox),
- "A process is already blocked on this alias %s", alias);
+ xbt_assert1(!MSG_mailbox_get_cond(mailbox),
+ "A process is already blocked on this alias %s", alias);
- cond = SIMIX_cond_init();
+ cond = SIMIX_cond_init();
- MSG_mailbox_set_cond(mailbox, cond);
+ MSG_mailbox_set_cond(mailbox, cond);
- if (timeout > 0) {
- SIMIX_cond_wait_timeout(cond, h_simdata->mutex, timeout);
- } else {
- SIMIX_cond_wait(cond, h_simdata->mutex);
- }
+ if (timeout > 0) {
+ SIMIX_cond_wait_timeout(cond, h_simdata->mutex, timeout);
+ } else {
+ SIMIX_cond_wait(cond, h_simdata->mutex);
+ }
- SIMIX_cond_destroy(cond);
- SIMIX_mutex_unlock(h_simdata->mutex);
+ SIMIX_cond_destroy(cond);
+ SIMIX_mutex_unlock(h_simdata->mutex);
- if (SIMIX_host_get_state(h_simdata->smx_host) == 0) {
- MSG_RETURN(MSG_HOST_FAILURE);
- }
+ if (SIMIX_host_get_state(h_simdata->smx_host) == 0) {
+ MSG_RETURN(MSG_HOST_FAILURE);
+ }
- MSG_mailbox_set_cond(mailbox, NULL);
- first_time = 0;
- }
+ MSG_mailbox_set_cond(mailbox, NULL);
+ first_time = 0;
+ }
- if (NULL == (t = MSG_mailbox_get_head(mailbox)))
- MSG_RETURN(MSG_OK);
+ if (NULL == (t = MSG_mailbox_get_head(mailbox)))
+ MSG_RETURN(MSG_OK);
- if (PID) {
- *PID = MSG_process_get_PID(t->simdata->sender);
- }
+ if (PID) {
+ *PID = MSG_process_get_PID(t->simdata->sender);
+ }
- MSG_RETURN(MSG_OK);
- }
+ MSG_RETURN(MSG_OK);
+ }
}
