XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_gos, msg,
"Logging specific to MSG (gos)");
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Executes a task and waits for its termination.
*
- * This function is used for describing the behavior of an agent. It
+ * This function is used for describing the behavior of a process. It
* takes only one parameter.
- * \param task a #m_task_t to execute on the location on which the
- agent is running.
+ * \param task a #m_task_t to execute on the location on which the process is running.
* \return #MSG_OK if the task was successfully completed, #MSG_TASK_CANCELED
* or #MSG_HOST_FAILURE otherwise
*/
MSG_error_t MSG_task_execute(m_task_t task)
{
+ xbt_ex_t e;
simdata_task_t simdata = NULL;
simdata_process_t p_simdata;
e_smx_state_t comp_state;
- CHECK_HOST();
simdata = task->simdata;
p_simdata = SIMIX_process_self_get_data(self);
simdata->isused=1;
simdata->compute =
- simcall_host_execute(task->name, p_simdata->m_host->simdata->smx_host,
+ simcall_host_execute(task->name, p_simdata->m_host->smx_host,
simdata->computation_amount,
simdata->priority);
#ifdef HAVE_TRACING
simcall_set_category(simdata->compute, task->category);
#endif
-
+
p_simdata->waiting_action = simdata->compute;
- comp_state = simcall_host_execution_wait(simdata->compute);
- p_simdata->waiting_action = NULL;
+ TRY {
+ comp_state = simcall_host_execution_wait(simdata->compute);
+ p_simdata->waiting_action = NULL;
- simdata->isused=0;
+ simdata->isused=0;
+
+ XBT_DEBUG("Execution task '%s' finished in state %d", task->name, (int)comp_state);
- XBT_DEBUG("Execution task '%s' finished in state %d", task->name, (int)comp_state);
- if (comp_state == SIMIX_DONE) {
/* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
simdata->computation_amount = 0.0;
simdata->comm = NULL;
TRACE_msg_task_execute_end(task);
#endif
MSG_RETURN(MSG_OK);
- } else if (simcall_host_get_state(SIMIX_host_self()) == 0) {
- /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
- simdata->comm = NULL;
- simdata->compute = NULL;
-#ifdef HAVE_TRACING
- 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 */
- simdata->comm = NULL;
- simdata->compute = NULL;
-#ifdef HAVE_TRACING
- TRACE_msg_task_execute_end(task);
-#endif
- MSG_RETURN(MSG_TASK_CANCELED);
+ }
+ CATCH(e) {
+ switch (e.category) {
+ case host_error:
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ simdata->comm = NULL;
+ simdata->compute = NULL;
+ #ifdef HAVE_TRACING
+ TRACE_msg_task_execute_end(task);
+ #endif
+ MSG_RETURN(MSG_HOST_FAILURE);
+ break;
+ case cancel_error:
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ simdata->comm = NULL;
+ simdata->compute = NULL;
+ #ifdef HAVE_TRACING
+ TRACE_msg_task_execute_end(task);
+ #endif
+ MSG_RETURN(MSG_TASK_CANCELED);
+ break;
+ }
}
}
simdata->comm_amount = communication_amount;
for (i = 0; i < host_nb; i++)
- simdata->host_list[i] = host_list[i]->simdata->smx_host;
+ simdata->host_list[i] = host_list[i]->smx_host;
return task;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Executes a parallel task and waits for its termination.
*
- * \param task a #m_task_t to execute on the location on which the agent is running.
+ * \param task a #m_task_t to execute on the location on which the process is running.
*
* \return #MSG_OK if the task was successfully completed, #MSG_TASK_CANCELED
* or #MSG_HOST_FAILURE otherwise
simdata_task_t simdata = NULL;
e_smx_state_t comp_state;
simdata_process_t p_simdata;
- CHECK_HOST();
simdata = task->simdata;
p_simdata = SIMIX_process_self_get_data(SIMIX_process_self());
xbt_assert(simdata->host_nb,
"This is not a parallel task. Go to hell.");
- XBT_DEBUG("Parallel computing on %s", p_simdata->m_host->name);
+ XBT_DEBUG("Parallel computing on %s", SIMIX_host_get_name(p_simdata->m_host->smx_host));
simdata->isused=1;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Sleep for the specified number of seconds
*
* Makes the current process sleep until \a time seconds have elapsed.
}
}
-/** \ingroup msg_gos_functions
- * \brief Starts listening for receiving a task from an specific host communication.
+/** \ingroup msg_task_usage
+ * \brief Deprecated function that used to receive a task from a mailbox from a specific host.
+ *
+ * Sorry, this function is not supported anymore. That wouldn't be
+ * impossible to reimplement it, but we are lacking the time to do so ourselves.
+ * If you need this functionality, you can either:
+ *
+ * - implement the buffering mechanism on the user-level by queuing all messages
+ * received in the mailbox that do not match your expectation
+ * - change your application logic to leverage the mailboxes features. For example,
+ * if you have A receiving messages from B and C, you could have A waiting on
+ * mailbox "A" most of the time, but on "A#B" when it's waiting for specific
+ * messages from B and "A#C" when waiting for messages from C. You could even get A
+ * sometime waiting on all these mailboxes using @ref MSG_comm_waitany. You can find
+ * an example of use of this function in the @ref MSG_examples section.
+ * - Provide a proper patch to implement this functionality back in MSG. That wouldn't be
+ * very difficult actually. Check the function @ref MSG_mailbox_get_task_ext. During its call to
+ * simcall_comm_recv(), the 5th argument, match_fun, is NULL. Create a function that filters
+ * messages according to the host (that you will pass as sixth argument to simcall_comm_recv()
+ * and that your filtering function will receive as first parameter, and then, the filter could
+ * simply compare the host names, for example. After sufficient testing, provide an example that
+ * we could add to the distribution, and your first contribution to SimGrid is ready. Thanks in advance.
*
* \param task a memory location for storing a #m_task_t.
- * \param alias name of the mailbox to receive the task to
- * \param host a #m_host_t host from where task were send
- * \return return status #MSG_error_t
+ * \param alias name of the mailbox to receive the task from
+ * \param host a #m_host_t host from where the task was sent
+ *
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
*/
MSG_error_t
MSG_task_receive_from_host(m_task_t * task, const char *alias,
return MSG_task_receive_ext(task, alias, -1, host);
}
-/** \ingroup msg_gos_functions
- * \brief Starts listening for receiving a task from a communication.
+/** \ingroup msg_task_usage
+ * \brief Receives a task from a mailbox.
+ *
+ * This is a blocking function, the execution flow will be blocked
+ * until the task is received. See #MSG_task_irecv
+ * for receiving tasks asynchronously.
*
* \param task a memory location for storing a #m_task_t.
- * \param alias name of the mailbox to receive the task to
- * \return return status #MSG_error_t
+ * \param alias name of the mailbox to receive the task from
+ *
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
*/
MSG_error_t MSG_task_receive(m_task_t * task, const char *alias)
{
return MSG_task_receive_with_timeout(task, alias, -1);
}
-/** \ingroup msg_gos_functions
- * \brief Starts listening for receiving a task from a communication.
+/** \ingroup msg_task_usage
+ * \brief Receives a task from a mailbox with a given timeout.
+ *
+ * This is a blocking function with a timeout, the execution flow will be blocked
+ * until the task is received or the timeout is achieved. See #MSG_task_irecv
+ * for receiving tasks asynchronously. You can provide a -1 timeout
+ * to obtain an infinite timeout.
*
* \param task a memory location for storing a #m_task_t.
- * \param alias name of the mailbox to receive the task to
- * \param timeout is the maximum wait time for completion
- * \return return status #MSG_error_t
+ * \param alias name of the mailbox to receive the task from
+ * \param timeout is the maximum wait time for completion (if -1, this call is the same as #MSG_task_receive)
+ *
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE, or #MSG_TIMEOUT otherwise.
*/
MSG_error_t
MSG_task_receive_with_timeout(m_task_t * task, const char *alias,
return MSG_task_receive_ext(task, alias, timeout, NULL);
}
-/** \ingroup msg_gos_functions
- * \brief Starts listening for receiving a task from an specific host communication
- * with a timeout.
+/** \ingroup msg_task_usage
+ * \brief Receives a task from a mailbox from a specific host with a given timeout.
+ *
+ * This is a blocking function with a timeout, the execution flow will be blocked
+ * until the task is received or the timeout is achieved. See #MSG_task_irecv
+ * for receiving tasks asynchronously. You can provide a -1 timeout
+ * to obtain an infinite timeout.
*
* \param task a memory location for storing a #m_task_t.
- * \param alias name of the mailbox to receive the task to
- * \param timeout Maximum time for receiving task
- * \param host a #m_host_t host from where task were send
- * \return return status #MSG_error_t
+ * \param alias name of the mailbox to receive the task from
+ * \param timeout is the maximum wait time for completion (provide -1 for no timeout)
+ * \param host a #m_host_t host from where the task was sent
+ *
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+* #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE, or #MSG_TIMEOUT otherwise.
*/
MSG_error_t
MSG_task_receive_ext(m_task_t * task, const char *alias, double timeout,
host, timeout);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Sends a task on a mailbox.
*
* This is a non blocking function: use MSG_comm_wait() or MSG_comm_test()
return MSG_task_isend_with_matching(task,alias,NULL,NULL);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Sends a task on a mailbox, with support for matching requests
*
* This is a non blocking function: use MSG_comm_wait() or MSG_comm_test()
*
* \param task a #m_task_t to send on another location.
* \param alias name of the mailbox to sent the task to
- * \param match_fun boolean function taking the match_data provided by sender (here), and the one of the receiver (if any) and returning whether they match
+ * \param match_fun boolean function which parameters are:
+ * - match_data_provided_here
+ * - match_data_provided_by_other_side_if_any
+ * - the_smx_action_describing_the_other_side
* \param match_data user provided data passed to match_fun
* \return the msg_comm_t communication created
*/
XBT_INLINE msg_comm_t MSG_task_isend_with_matching(m_task_t task, const char *alias,
- int (*match_fun)(void*,void*),
+ int (*match_fun)(void*,void*, smx_action_t),
void *match_data)
{
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();
-
/* FIXME: these functions are not traceable */
/* Prepare the task to send */
return comm;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Sends a task on a mailbox.
*
* This is a non blocking detached send function.
m_process_t process = MSG_process_self();
msg_mailbox_t mailbox = MSG_mailbox_get_by_alias(alias);
- CHECK_HOST();
-
/* FIXME: these functions are not traceable */
/* Prepare the task to send */
t_simdata->comm = comm;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Starts listening for receiving a task from an asynchronous communication.
*
* This is a non blocking function: use MSG_comm_wait() or MSG_comm_test()
* to end the communication.
- *
- * \param task a memory location for storing a #m_task_t.
+ *
+ * \param task a memory location for storing a #m_task_t. has to be valid until the end of the communication.
* \param name of the mailbox to receive the task on
* \return the msg_comm_t communication created
*/
{
smx_rdv_t rdv = MSG_mailbox_get_by_alias(name);
- CHECK_HOST();
-
/* FIXME: these functions are not traceable */
/* Sanity check */
return comm;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Checks whether a communication is done, and if yes, finalizes it.
* \param comm the communication to test
* \return TRUE if the communication is finished
return finished;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief This function checks if a communication is finished.
* \param comms a vector of communications
* \return the position of the finished communication if any
return finished_index;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Destroys a communication.
* \param comm the communication to destroy.
*/
xbt_free(comm);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Wait for the completion of a communication.
*
* It takes two parameters.
* \param comm the communication to wait.
- * \param timeout Wait until the communication terminates or the timeout occurs
+ * \param timeout Wait until the communication terminates or the timeout
+ * occurs. You can provide a -1 timeout to obtain an infinite timeout.
* \return MSG_error_t
*/
MSG_error_t MSG_comm_wait(msg_comm_t comm, double timeout)
return comm->status;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief This function is called by a sender and permit to wait for each communication
*
* \param comm a vector of communication
}
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief This function waits for the first communication finished in a list.
* \param comms a vector of communications
* \return the position of the first finished communication
}
/**
- * \ingroup msg_gos_functions
+ * \ingroup msg_task_usage
* \brief Returns the error (if any) that occured during a finished communication.
* \param comm a finished communication
- * \return the status of the communication, or MSG_OK if no error occured
+ * \return the status of the communication, or #MSG_OK if no error occured
* during the communication
*/
MSG_error_t MSG_comm_get_status(msg_comm_t comm) {
return comm->status;
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Get a task (#m_task_t) from a communication
*
* \param comm the communication where to get the task
}
}
-/** \ingroup msg_gos_functions
- * \brief Send a task into a mailbox
+/** \ingroup msg_task_usage
+ * \brief Sends a task to a mailbox
+ *
+ * This is a blocking function, the execution flow will be blocked
+ * until the task is sent (and received in the other side if #MSG_task_receive is used).
+ * See #MSG_task_isend for sending tasks asynchronously.
+ *
+ * \param task the task to be sent
+ * \param alias the mailbox name to where the task is sent
*
- * \param task the task to send
- * \param alias the mailbox name where the task is send
- * \return a return code (#MSG_error_t)
+ * \return Returns #MSG_OK if the task was successfully sent,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
*/
MSG_error_t MSG_task_send(m_task_t task, const char *alias)
{
return MSG_task_send_with_timeout(task, alias, -1);
}
-/** \ingroup msg_gos_functions
- * \brief Send a task into a mailbox with a maximum rate
+/** \ingroup msg_task_usage
+ * \brief Sends a task to a mailbox with a maximum rate
*
- * \param task the task to send
- * \param alias the mailbox name where the task is send
- * \param maxrate the maximum rate for communication
- * \return a return code (#MSG_error_t)
+ * This is a blocking function, the execution flow will be blocked
+ * until the task is sent. The maxrate parameter allows the application
+ * to limit the bandwidth utilization of network links when sending the task.
+ *
+ * \param task the task to be sent
+ * \param alias the mailbox name to where the task is sent
+ * \param maxrate the maximum communication rate for sending this task
+ *
+ * \return Returns #MSG_OK if the task was successfully sent,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
*/
MSG_error_t
MSG_task_send_bounded(m_task_t task, const char *alias, double maxrate)
return MSG_task_send(task, alias);
}
-/** \ingroup msg_gos_functions
- * \brief Send a task into a mailbox with a timeout
+/** \ingroup msg_task_usage
+ * \brief Sends a task to a mailbox with a timeout
+ *
+ * This is a blocking function, the execution flow will be blocked
+ * until the task is sent or the timeout is achieved.
*
- * \param task the task to send
- * \param alias the mailbox name where the task is send
- * \param timeout the time for the timeout
- * \return a return code (#MSG_error_t)
+ * \param task the task to be sent
+ * \param alias the mailbox name to where the task is sent
+ * \param timeout is the maximum wait time for completion (if -1, this call is the same as #MSG_task_send)
+ *
+ * \return Returns #MSG_OK if the task was successfully sent,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE, or #MSG_TIMEOUT otherwise.
*/
MSG_error_t
MSG_task_send_with_timeout(m_task_t task, const char *alias,
task, timeout);
}
-/** \ingroup msg_gos_functions
- * \brief Look if there is a communication on a mailbox
+/** \ingroup msg_task_usage
+ * \brief Check if there is a communication going on in a mailbox.
+ *
+ * \param alias the name of the mailbox to be considered
*
- * \param alias the mailbox to listen
- * \return return 1 if there is a communication or 0
+ * \return Returns 1 if there is a communication, 0 otherwise
*/
int MSG_task_listen(const char *alias)
{
- CHECK_HOST();
-
return !MSG_mailbox_is_empty(MSG_mailbox_get_by_alias(alias));
}
-/** \ingroup msg_gos_functions
- * \brief Look if there is a communication on a mailbox from
- * a given host
+/** \ingroup msg_task_usage
+ * \brief Check the number of communication actions of a given host pending in a mailbox.
*
- * \param alias the mailbox to listen
+ * \param alias the name of the mailbox to be considered
* \param host the host to check for communication
- * \return return 1 if there is a communication or 0
+ *
+ * \return Returns the number of pending communication actions of the host in the
+ * given mailbox, 0 if there is no pending communication actions.
+ *
*/
int MSG_task_listen_from_host(const char *alias, m_host_t host)
{
- CHECK_HOST();
-
return
MSG_mailbox_get_count_host_waiting_tasks(MSG_mailbox_get_by_alias
(alias), host);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_task_usage
* \brief Look if there is a communication on a mailbox and return the
- * PID from sender process
+ * PID of the sender process.
+ *
+ * \param alias the name of the mailbox to be considered
*
- * \param alias the mailbox to listen
- * \return return the PID of process(or 0 in case of problem)
+ * \return Returns the PID of sender process,
+ * -1 if there is no communication in the mailbox.
*/
int MSG_task_listen_from(const char *alias)
{
m_task_t task;
- CHECK_HOST();
-
if (NULL ==
(task = MSG_mailbox_get_head(MSG_mailbox_get_by_alias(alias))))
return -1;
return MSG_process_get_PID(task->simdata->sender);
}
+/** \ingroup msg_task_usage
+ * \brief Sets the tracing category of a task.
+ *
+ * This function should be called after the creation of
+ * a MSG task, to define the category of that task. The
+ * first parameter task must contain a task that was
+ * created with the function #MSG_task_create. The second
+ * parameter category must contain a category that was
+ * previously declared with the function #TRACE_category
+ * (or with #TRACE_category_with_color).
+ *
+ * See \ref tracing_tracing for details on how to trace
+ * the (categorized) resource utilization.
+ *
+ * \param task the task that is going to be categorized
+ * \param category the name of the category to be associated to the task
+ *
+ * \see MSG_task_get_category, TRACE_category, TRACE_category_with_color
+ */
+void MSG_task_set_category (m_task_t task, const char *category)
+{
+#ifdef HAVE_TRACING
+ TRACE_msg_set_task_category (task, category);
+#endif
+}
+
+/** \ingroup msg_task_usage
+ *
+ * \brief Gets the current tracing category of a task.
+ *
+ * \param task the task to be considered
+ *
+ * \see MSG_task_set_category
+ *
+ * \return Returns the name of the tracing category of the given task, NULL otherwise
+ */
+const char *MSG_task_get_category (m_task_t task)
+{
+#ifdef HAVE_TRACING
+ return task->category;
+#else
+ return NULL;
+#endif
+}
+
#ifdef MSG_USE_DEPRECATED
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
*
* \brief Return the last value returned by a MSG function (except
* MSG_get_errno...).
return PROCESS_GET_ERRNO();
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Put a task on a channel of an host and waits for the end of the
* transmission.
*
- * This function is used for describing the behavior of an agent. It
+ * This function is used for describing the behavior of a process. 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
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
+ * \param channel the channel on which the process should put this
task. This value has to be >=0 and < than the maximal number of
channels fixed with MSG_set_channel_number().
* \return #MSG_HOST_FAILURE if the host on which
return MSG_task_put_with_timeout(task, dest, channel, -1.0);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Does exactly the same as MSG_task_put but with a bounded transmition
* rate.
*
return MSG_task_put(task, dest, channel);
}
-/** \ingroup msg_gos_functions \brief Put a task on a channel of an
+/** \ingroup msg_deprecated_functions
+ *
+ * \brief Put a task on a channel of an
* host (with a timeout on the waiting of the destination host) and
* waits for the end of the transmission.
*
- * This function is used for describing the behavior of an agent. It
+ * This function is used for describing the behavior of a process. 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
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
+ * \param channel the channel on which the process should put this
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
&& (channel < msg_global->max_channel), "Invalid channel %d",
channel);
- XBT_DEBUG("MSG_task_put_with_timout: Trying to send a task to '%s'", dest->name);
+ XBT_DEBUG("MSG_task_put_with_timout: Trying to send a task to '%s'", SIMIX_host_get_name(dest->smx_host));
return
MSG_mailbox_put_with_timeout(MSG_mailbox_get_by_channel
(dest, channel), task, timeout);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Test whether there is a pending communication on a channel, and who sent it.
*
* It takes one parameter.
- * \param channel the channel on which the agent should be
+ * \param channel the channel on which the process should be
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
XBT_WARN("DEPRECATED! Now use MSG_task_listen_from");
m_task_t task;
- CHECK_HOST();
-
xbt_assert((channel >= 0)
&& (channel < msg_global->max_channel), "Invalid channel %d",
channel);
return MSG_process_get_PID(task->simdata->sender);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Test whether there is a pending communication on a channel.
*
* It takes one parameter.
- * \param channel the channel on which the agent should be
+ * \param channel the channel on which the process should be
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
&& (channel < msg_global->max_channel), "Invalid channel %d",
channel);
- CHECK_HOST();
-
return
!MSG_mailbox_is_empty(MSG_mailbox_get_by_channel
(MSG_host_self(), channel));
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Return the number of tasks waiting to be received on a \a
channel and sent by \a host.
*
* It takes two parameters.
- * \param channel the channel on which the agent should be
+ * \param channel the channel on which the process should be
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.
&& (channel < msg_global->max_channel), "Invalid channel %d",
channel);
- CHECK_HOST();
-
return
MSG_mailbox_get_count_host_waiting_tasks(MSG_mailbox_get_by_channel
(MSG_host_self(), channel),
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Listen on \a channel and waits for receiving a task from \a host.
*
* It takes three parameters.
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
+ * \param channel the channel on which the process should be
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_task_get_ext(task, channel, -1, host);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Listen on a channel and wait for receiving a task.
*
* It takes two parameters.
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
+ * \param channel the channel on which the process should be
listening. This value has to be >=0 and < than the maximal
number of channels fixed with MSG_set_channel_number().
* \return a #MSG_error_t indicating whether the operation was successful (#MSG_OK), or why it failed otherwise.
return MSG_task_get_with_timeout(task, channel, -1);
}
-/** \ingroup msg_gos_functions
+/** \ingroup msg_deprecated_functions
* \brief Listen on a channel and wait for receiving a task with a timeout.
*
* It takes three parameters.
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
+ * \param channel the channel on which the process should be
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
