/* 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
#include "msg_mailbox.h"
#include "msg_private.h"
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
"Logging specific to MSG (mailbox)");
return (NULL == simcall_rdv_get_head(mailbox));
}
-m_task_t MSG_mailbox_get_head(msg_mailbox_t mailbox)
+msg_task_t MSG_mailbox_get_head(msg_mailbox_t mailbox)
{
smx_action_t comm = simcall_rdv_get_head(mailbox);
if (!comm)
return NULL;
- return (m_task_t) simcall_comm_get_src_data(comm);
+ return (msg_task_t) simcall_comm_get_src_data(comm);
}
int
MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox,
- m_host_t host)
+ msg_host_t host)
{
- return simcall_rdv_comm_count_by_host(mailbox,
- host->simdata->smx_host);
+ return simcall_rdv_comm_count_by_host(mailbox, host);
}
msg_mailbox_t MSG_mailbox_get_by_alias(const char *alias)
return mailbox;
}
-msg_mailbox_t MSG_mailbox_get_by_channel(m_host_t host,
- m_channel_t channel)
-{
- XBT_WARN("DEPRECATED! Now use MSG_mailbox_get_by_alias");
- xbt_assert((host != NULL), "Invalid host");
- xbt_assert((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+/** \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());
+
+}
- return host->simdata->mailboxes[(size_t) channel];
+/** \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_host_t host, double timeout)
+{
+ return MSG_mailbox_get_task_ext_bounded(mailbox, task, host, timeout, -1.0);
}
-MSG_error_t
-MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, m_task_t * task,
- m_host_t host, double timeout)
+/** \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;
+ msg_error_t ret = MSG_OK;
/* We no longer support getting a task from a specific host */
if (host)
THROW_UNIMPLEMENTED;
- CHECK_HOST();
#ifdef HAVE_TRACING
TRACE_msg_task_get_start();
- volatile double start_time = MSG_get_clock();
+ double start_time = MSG_get_clock();
#endif
/* Sanity check */
/* 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, timeout, rate);
XBT_DEBUG("Got task %s from %p",(*task)->name,mailbox);
(*task)->simdata->isused=0;
}
CATCH(e) {
switch (e.category) {
- case host_error:
+ case cancel_error:
ret = MSG_HOST_FAILURE;
break;
case network_error:
MSG_RETURN(ret);
}
-MSG_error_t
-MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task,
+msg_error_t
+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;
+ msg_error_t ret = MSG_OK;
simdata_task_t t_simdata = NULL;
- m_process_t process = MSG_process_self();
+ msg_process_t process = MSG_process_self();
simdata_process_t p_simdata = SIMIX_process_self_get_data(process);
- CHECK_HOST();
#ifdef HAVE_TRACING
int call_end = TRACE_msg_task_put_start(task); //must be after CHECK_HOST()
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->multiple_backtraces){
+ XBT_ERROR("This task is already used in there:");
+ xbt_backtrace_display(t_simdata->isused);
+ THROWF(unknown_error, 0, "And you try to reuse it from here. You cannot send it now. Go fix your code!");
+ } else {
+ THROWF(unknown_error, 0, "This task is still being used somewhere else. You cannot send it now. Go fix your code! (use --cfg=msg/multiple_backtraces:on to get the backtrace of the other process)");
+ }
+ }
- t_simdata->isused=1;
+ if (msg_global->multiple_backtraces)
+ MSG_BT(t_simdata->isused, "Using Backtrace");
+ else
+ t_simdata->isused = (void*)1;
+ t_simdata->comm = NULL;
msg_global->sent_msg++;
/* Try to send it by calling SIMIX network layer */
TRY {
- smx_action_t comm = simcall_comm_isend(mailbox, t_simdata->message_size,
+ smx_action_t comm = NULL; /* MC needs the comm to be set to NULL during the simix call */
+ comm = simcall_comm_isend(mailbox, t_simdata->message_size,
t_simdata->rate, task, sizeof(void *),
NULL, NULL, task, 0);
#ifdef HAVE_TRACING
CATCH(e) {
switch (e.category) {
- case host_error:
+ case cancel_error:
ret = MSG_HOST_FAILURE;
break;
case network_error:
#endif
MSG_RETURN(ret);
}
+
+#ifdef MSG_USE_DEPRECATED
+msg_mailbox_t MSG_mailbox_get_by_channel(msg_host_t host,
+ m_channel_t channel)
+{
+ XBT_WARN("DEPRECATED! Now use MSG_mailbox_get_by_alias");
+ xbt_assert((host != NULL), "Invalid host");
+ xbt_assert((channel >= 0)
+ && (channel < msg_global->max_channel), "Invalid channel %d",
+ channel);
+
+ return MSG_host_priv(host)->mailboxes[(size_t) channel];
+}
+#endif
