-#include "mailbox.h"
-#include "msg/private.h"
+/* Mailboxes in MSG */
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
- "Logging specific to MSG (mailbox)");
-
-static xbt_dict_t msg_mailboxes = NULL;
-
-void MSG_mailbox_mod_init(void)
-{
- msg_mailboxes = xbt_dict_new();
-}
+/* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
-void MSG_mailbox_mod_exit(void)
-{
- xbt_dict_free(&msg_mailboxes);
-}
+/* 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. */
-msg_mailbox_t MSG_mailbox_create(const char *alias)
-{
- msg_mailbox_t mailbox = xbt_new0(s_msg_mailbox_t, 1);
+#include "msg_mailbox.h"
+#include "msg_private.h"
- mailbox->cond = NULL;
- mailbox->alias = alias ? xbt_strdup(alias) : NULL;
- mailbox->rdv = SIMIX_rdv_create(alias);
-
- return mailbox;
-}
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
+ "Logging specific to MSG (mailbox)");
msg_mailbox_t MSG_mailbox_new(const char *alias)
{
- msg_mailbox_t mailbox = MSG_mailbox_create(alias);
-
- /* add the mbox in the dictionary */
- xbt_dict_set(msg_mailboxes, alias, mailbox, MSG_mailbox_free);
-
- return mailbox;
+ return simcall_rdv_create(alias);
}
void MSG_mailbox_free(void *mailbox)
{
- msg_mailbox_t _mailbox = (msg_mailbox_t) mailbox;
-
- free(_mailbox->alias);
- SIMIX_rdv_destroy(_mailbox->rdv);
-
- free(_mailbox);
-}
-
-smx_cond_t MSG_mailbox_get_cond(msg_mailbox_t mailbox)
-{
- return mailbox->cond;
+ simcall_rdv_destroy((msg_mailbox_t)mailbox);
}
int MSG_mailbox_is_empty(msg_mailbox_t mailbox)
{
- return (NULL == SIMIX_rdv_get_head(mailbox->rdv));
+ 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_comm_t comm = SIMIX_rdv_get_head(mailbox->rdv);
-
- if(!comm)
- return NULL;
-
- return (m_task_t)SIMIX_communication_get_data(comm);
-}
+ smx_action_t comm = simcall_rdv_get_head(mailbox);
-int
-MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox, m_host_t host)
-{
- return SIMIX_rdv_get_count_waiting_comm (mailbox->rdv, host->simdata->smx_host);
-}
+ if (!comm)
+ return NULL;
-void MSG_mailbox_set_cond(msg_mailbox_t mailbox, smx_cond_t cond)
-{
- mailbox->cond = cond;
+ return (msg_task_t) simcall_comm_get_src_data(comm);
}
-const char *MSG_mailbox_get_alias(msg_mailbox_t mailbox)
+int
+MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox,
+ msg_host_t host)
{
- return mailbox->alias;
+ return simcall_rdv_comm_count_by_host(mailbox, host);
}
msg_mailbox_t MSG_mailbox_get_by_alias(const char *alias)
{
- msg_mailbox_t mailbox = xbt_dict_get_or_null(msg_mailboxes, 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)
-{
- xbt_assert0((host != NULL), "Invalid host");
- xbt_assert1((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];
}
-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
+ *
+ * \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_ex_t e;
- MSG_error_t ret = MSG_OK;
- smx_comm_t comm;
-
+ msg_error_t ret = MSG_OK;
/* We no longer support getting a task from a specific host */
- if (host) THROW_UNIMPLEMENTED;
-
- CHECK_HOST();
-
- memset(&comm,0,sizeof(comm));
+ if (host)
+ THROW_UNIMPLEMENTED;
- /* 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));
+#ifdef HAVE_TRACING
+ TRACE_msg_task_get_start();
+ double start_time = MSG_get_clock();
+#endif
/* Sanity check */
- xbt_assert0(task, "Null pointer for the task storage");
+ xbt_assert(task, "Null pointer for the task storage");
if (*task)
- CRITICAL0("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_network_recv(mailbox->rdv, timeout, task, NULL, &comm);
- //INFO2("Got task %s from %s",(*task)->name,mailbox->alias);
- (*task)->simdata->refcount--;
+ 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 host_error:
- ret = MSG_HOST_FAILURE;
- break;
- case network_error:
- ret = MSG_TRANSFER_FAILURE;
- break;
- case timeout_error:
- ret = MSG_TIMEOUT_FAILURE;
- break;
- default:
- xbt_die(bprintf("Unhandled SIMIX network exception: %s",e.msg));
+ CATCH(e) {
+ switch (e.category) {
+ case network_error:
+ ret = MSG_TRANSFER_FAILURE;
+ break;
+ case timeout_error:
+ ret = MSG_TIMEOUT;
+ break;
+ default:
+ RETHROW;
}
- xbt_ex_free(e);
+ 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);
}
-
- MSG_RETURN(ret);
+#endif
+ 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();
-
- 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()
+#endif
/* 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_assert0(t_simdata->refcount == 1,
+ 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->refcount++;
+ t_simdata->isused=1;
+ t_simdata->comm = NULL;
msg_global->sent_msg++;
- process->simdata->waiting_task = task;
-
- /* Try to send it by calling SIMIX network layer */
- TRY{
- /* Kept for semantical compatibility with older implementation */
- if(mailbox->cond)
- SIMIX_cond_signal(mailbox->cond);
- SIMIX_network_send(mailbox->rdv, t_simdata->message_size, t_simdata->rate,
- timeout, task, sizeof(void*), &t_simdata->comm, task);
+ p_simdata->waiting_task = task;
+
+ /* Try to send it by calling SIMIX network layer */
+ TRY {
+ smx_action_t comm = simcall_comm_isend(mailbox, t_simdata->message_size,
+ t_simdata->rate, task, sizeof(void *),
+ 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:
- ret = MSG_HOST_FAILURE;
- break;
- case network_error:
- ret = MSG_TRANSFER_FAILURE;
- break;
- case timeout_error:
- ret = MSG_TIMEOUT_FAILURE;
- break;
- default:
- xbt_die(bprintf("Unhandled SIMIX network exception: %s",e.msg));
+ CATCH(e) {
+ switch (e.category) {
+ case network_error:
+ ret = MSG_TRANSFER_FAILURE;
+ break;
+ case timeout_error:
+ ret = MSG_TIMEOUT;
+ break;
+ default:
+ RETHROW;
}
xbt_ex_free(e);
- /* Decrement the refcount only on failure */
- t_simdata->refcount--;
+ /* If the send failed, it is not used anymore */
+ t_simdata->isused = 0;
}
- process->simdata->waiting_task = NULL;
-
- MSG_RETURN(ret);
+
+ p_simdata->waiting_task = NULL;
+#ifdef HAVE_TRACING
+ if (call_end)
+ TRACE_msg_task_put_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
