/* Mailboxes in MSG */
-/* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2008-2014. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
msg_task_t MSG_mailbox_get_head(msg_mailbox_t mailbox)
{
- smx_action_t comm = simcall_rdv_get_head(mailbox);
+ smx_synchro_t comm = simcall_rdv_get_head(mailbox);
if (!comm)
return NULL;
MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox,
msg_host_t host)
{
- return simcall_rdv_comm_count_by_host(mailbox,
- host->smx_host);
+ return simcall_rdv_comm_count_by_host(mailbox, host);
}
msg_mailbox_t MSG_mailbox_get_by_alias(const char *alias)
return mailbox;
}
+/** \ingroup msg_mailbox_management
+ * \brief Set the mailbox to receive in asynchronous mode
+ *
+ * All messages sent to this mailbox will be transferred to
+ * the receiver without waiting for the receive call.
+ * The receive call will still be necessary to use the received data.
+ * If there is a need to receive some messages asynchronously, and some not,
+ * two different mailboxes should be used.
+ *
+ * \param alias The name of the mailbox
+ */
+void MSG_mailbox_set_async(const char *alias){
+ msg_mailbox_t mailbox = MSG_mailbox_get_by_alias(alias);
+
+ simcall_rdv_set_receiver(mailbox, SIMIX_process_self());
+ XBT_VERB("%s mailbox set to receive eagerly for process %p\n",alias, SIMIX_process_self());
+
+}
+
+/** \ingroup msg_mailbox_management
+ * \brief Get a task from a mailbox on a given host
+ *
+ * \param mailbox The mailbox where the task was sent
+ * \param task a memory location for storing a #msg_task_t.
+ * \param host a #msg_host_t host from where the task was sent
+ * \param timeout a timeout
+
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
+ */
msg_error_t
-MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, msg_task_t * task,
+MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, msg_task_t *task,
msg_host_t host, double timeout)
+{
+ return MSG_mailbox_get_task_ext_bounded(mailbox, task, host, timeout, -1.0);
+}
+
+/** \ingroup msg_mailbox_management
+ * \brief Get a task from a mailbox on a given host at a given rate
+ *
+ * \param mailbox The mailbox where the task was sent
+ * \param task a memory location for storing a #msg_task_t.
+ * \param host a #msg_host_t host from where the task was sent
+ * \param timeout a timeout
+ * \param rate a rate
+
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
+ */
+msg_error_t
+MSG_mailbox_get_task_ext_bounded(msg_mailbox_t mailbox, msg_task_t * task,
+ msg_host_t host, double timeout, double rate)
{
xbt_ex_t e;
msg_error_t ret = MSG_OK;
if (host)
THROW_UNIMPLEMENTED;
-#ifdef HAVE_TRACING
TRACE_msg_task_get_start();
- volatile double start_time = MSG_get_clock();
-#endif
+ double start_time = MSG_get_clock();
/* Sanity check */
xbt_assert(task, "Null pointer for the task storage");
/* Try to receive it by calling SIMIX network layer */
TRY {
- simcall_comm_recv(mailbox, task, NULL, NULL, NULL, timeout);
+ simcall_comm_recv(mailbox, task, NULL, NULL, NULL, NULL, timeout, rate);
XBT_DEBUG("Got task %s from %p",(*task)->name,mailbox);
- (*task)->simdata->isused=0;
+ if (msg_global->debug_multiple_use && (*task)->simdata->isused!=0)
+ xbt_ex_free(*(xbt_ex_t*)(*task)->simdata->isused);
+ (*task)->simdata->isused = 0;
}
CATCH(e) {
switch (e.category) {
+ case cancel_error:
+ ret = MSG_HOST_FAILURE;
+ break;
case network_error:
ret = MSG_TRANSFER_FAILURE;
break;
case timeout_error:
ret = MSG_TIMEOUT;
break;
+ case host_error:
+ ret = MSG_HOST_FAILURE;
+ break;
default:
RETHROW;
}
xbt_ex_free(e);
}
-#ifdef HAVE_TRACING
if (ret != MSG_HOST_FAILURE &&
ret != MSG_TRANSFER_FAILURE &&
ret != MSG_TIMEOUT) {
TRACE_msg_task_get_end(start_time, *task);
}
-#endif
MSG_RETURN(ret);
}
MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, msg_task_t task,
double timeout)
{
- xbt_ex_t e;
msg_error_t ret = MSG_OK;
simdata_task_t t_simdata = NULL;
msg_process_t process = MSG_process_self();
simdata_process_t p_simdata = SIMIX_process_self_get_data(process);
-#ifdef HAVE_TRACING
int call_end = TRACE_msg_task_put_start(task); //must be after CHECK_HOST()
-#endif
/* Prepare the task to send */
t_simdata = task->simdata;
t_simdata->sender = process;
t_simdata->source = ((simdata_process_t) SIMIX_process_self_get_data(process))->m_host;
- xbt_assert(t_simdata->isused == 0,
- "This task is still being used somewhere else. You cannot send it now. Go fix your code!");
+ if (t_simdata->isused != 0) {
+ if (msg_global->debug_multiple_use){
+ XBT_ERROR("This task is already used in there:");
+ xbt_backtrace_display(t_simdata->isused);
+ XBT_ERROR("And you try to reuse it from here:");
+ xbt_backtrace_display_current();
+ } else {
+ xbt_assert(t_simdata->isused == 0,
+ "This task is still being used somewhere else. You cannot send it now. Go fix your code! (use --cfg=msg/debug_multiple_use:on to get the backtrace of the other process)");
+ }
+ }
- t_simdata->isused=1;
+ if (msg_global->debug_multiple_use)
+ MSG_BT(t_simdata->isused, "Using Backtrace");
+ else
+ t_simdata->isused = (void*)1;
t_simdata->comm = NULL;
msg_global->sent_msg++;
p_simdata->waiting_task = task;
+ xbt_ex_t e;
/* Try to send it by calling SIMIX network layer */
TRY {
- smx_action_t comm = simcall_comm_isend(mailbox, t_simdata->message_size,
+ smx_synchro_t comm = NULL; /* MC needs the comm to be set to NULL during the simix call */
+ comm = simcall_comm_isend(SIMIX_process_self(), mailbox,t_simdata->bytes_amount,
t_simdata->rate, task, sizeof(void *),
- NULL, NULL, task, 0);
-#ifdef HAVE_TRACING
- if (TRACE_is_enabled()) {
+ NULL, NULL, NULL, task, 0);
+ if (TRACE_is_enabled())
simcall_set_category(comm, task->category);
- }
-#endif
t_simdata->comm = comm;
simcall_comm_wait(comm, timeout);
}
CATCH(e) {
switch (e.category) {
+ case cancel_error:
+ ret = MSG_HOST_FAILURE;
+ break;
case network_error:
ret = MSG_TRANSFER_FAILURE;
break;
xbt_ex_free(e);
/* If the send failed, it is not used anymore */
+ if (msg_global->debug_multiple_use && t_simdata->isused!=0)
+ xbt_ex_free(*(xbt_ex_t*)t_simdata->isused);
t_simdata->isused = 0;
}
p_simdata->waiting_task = NULL;
-#ifdef HAVE_TRACING
if (call_end)
TRACE_msg_task_put_end();
-#endif
MSG_RETURN(ret);
}
&& (channel < msg_global->max_channel), "Invalid channel %d",
channel);
- return host->mailboxes[(size_t) channel];
+ return MSG_host_priv(host)->mailboxes[(size_t) channel];
}
#endif
