/* Mailboxes in MSG */
-/* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2008-2013. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "mailbox.h"
-#include "msg/private.h"
+#include "msg_mailbox.h"
+#include "msg_private.h"
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
"Logging specific to MSG (mailbox)");
msg_mailbox_t MSG_mailbox_new(const char *alias)
{
- return SIMIX_req_rdv_create(alias);
+ return simcall_rdv_create(alias);
}
void MSG_mailbox_free(void *mailbox)
{
- SIMIX_req_rdv_destroy((msg_mailbox_t)mailbox);
+ simcall_rdv_destroy((msg_mailbox_t)mailbox);
}
int MSG_mailbox_is_empty(msg_mailbox_t mailbox)
{
- return (NULL == SIMIX_req_rdv_get_head(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 = SIMIX_req_rdv_get_head(mailbox);
+ smx_action_t comm = simcall_rdv_get_head(mailbox);
if (!comm)
return NULL;
- return (m_task_t) SIMIX_req_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 SIMIX_req_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)
{
- msg_mailbox_t mailbox = SIMIX_req_rdv_get_by_name(alias);
+ msg_mailbox_t mailbox = simcall_rdv_get_by_name(alias);
if (!mailbox)
mailbox = MSG_mailbox_new(alias);
return mailbox;
}
-msg_mailbox_t MSG_mailbox_get_by_channel(m_host_t host,
- m_channel_t 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());
+
+}
+
+/** \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)
{
- xbt_assert((host != NULL), "Invalid host");
- xbt_assert((channel >= 0)
- && (channel < msg_global->max_channel), "Invalid channel %d",
- channel);
+ xbt_ex_t e;
+ msg_error_t ret = MSG_OK;
+ /* We no longer support getting a task from a specific host */
+ if (host)
+ THROW_UNIMPLEMENTED;
+
+#ifdef HAVE_TRACING
+ TRACE_msg_task_get_start();
+ double start_time = MSG_get_clock();
+#endif
- return host->simdata->mailboxes[(size_t) channel];
+ /* Sanity check */
+ xbt_assert(task, "Null pointer for the task storage");
+
+ if (*task)
+ XBT_WARN
+ ("Asked to write the received task in a non empty struct -- proceeding.");
+
+ /* Try to receive it by calling SIMIX network layer */
+ TRY {
+ simcall_comm_recv(mailbox, task, NULL, NULL, NULL, timeout);
+ XBT_DEBUG("Got task %s from %p",(*task)->name,mailbox);
+ (*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;
+ 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_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();
double start_time = MSG_get_clock();
xbt_assert(task, "Null pointer for the task storage");
if (*task)
- XBT_CRITICAL
- ("MSG_task_get() was asked to write in a non empty task struct.");
+ XBT_WARN
+ ("Asked to write the received task in a non empty struct -- proceeding.");
/* Try to receive it by calling SIMIX network layer */
TRY {
- SIMIX_req_comm_recv(mailbox, task, NULL, NULL, NULL, timeout);
+ simcall_comm_recv_bounded(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();
- simdata_process_t p_simdata = SIMIX_process_self_get_data();
- CHECK_HOST();
+ 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()
/* Prepare the task to send */
t_simdata = task->simdata;
t_simdata->sender = process;
- t_simdata->source = MSG_host_self();
+ 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!");
t_simdata->isused=1;
+ t_simdata->comm = NULL;
msg_global->sent_msg++;
/* Try to send it by calling SIMIX network layer */
TRY {
-#ifdef HAVE_TRACING
- if (TRACE_is_enabled()) {
- smx_action_t comm = SIMIX_req_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, 0);
- SIMIX_req_set_category(comm, task->category);
- SIMIX_req_comm_wait(comm, timeout);
- } else {
-#endif
- SIMIX_req_comm_send(mailbox, t_simdata->message_size,
- t_simdata->rate, task, sizeof(void*),
- NULL, NULL, timeout);
+ NULL, NULL, task, 0);
#ifdef HAVE_TRACING
+ 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 host_error:
+ case cancel_error:
ret = MSG_HOST_FAILURE;
break;
case network_error:
t_simdata->isused = 0;
}
+
p_simdata->waiting_task = NULL;
#ifdef HAVE_TRACING
if (call_end)
#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 host->mailboxes[(size_t) channel];
+}
+#endif
