2 #include "msg/private.h"
4 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
5 "Logging specific to MSG (mailbox)");
7 static xbt_dict_t msg_mailboxes = NULL;
9 void MSG_mailbox_mod_init(void)
11 msg_mailboxes = xbt_dict_new();
14 void MSG_mailbox_mod_exit(void)
16 xbt_dict_free(&msg_mailboxes);
19 msg_mailbox_t MSG_mailbox_create(const char *alias)
21 msg_mailbox_t mailbox = xbt_new0(s_msg_mailbox_t, 1);
24 mailbox->alias = alias ? xbt_strdup(alias) : NULL;
25 mailbox->rdv = SIMIX_rdv_create(alias);
30 msg_mailbox_t MSG_mailbox_new(const char *alias)
32 msg_mailbox_t mailbox = MSG_mailbox_create(alias);
34 /* add the mbox in the dictionary */
35 xbt_dict_set(msg_mailboxes, alias, mailbox, MSG_mailbox_free);
40 void MSG_mailbox_free(void *mailbox)
42 msg_mailbox_t _mailbox = (msg_mailbox_t) mailbox;
44 free(_mailbox->alias);
45 SIMIX_rdv_destroy(_mailbox->rdv);
50 smx_cond_t MSG_mailbox_get_cond(msg_mailbox_t mailbox)
55 int MSG_mailbox_is_empty(msg_mailbox_t mailbox)
57 return (NULL == SIMIX_rdv_get_head(mailbox->rdv));
60 m_task_t MSG_mailbox_get_head(msg_mailbox_t mailbox)
62 smx_comm_t comm = SIMIX_rdv_get_head(mailbox->rdv);
67 return (m_task_t)SIMIX_communication_get_data(comm);
71 MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox, m_host_t host)
73 return SIMIX_rdv_get_count_waiting_comm (mailbox->rdv, host->simdata->smx_host);
76 void MSG_mailbox_set_cond(msg_mailbox_t mailbox, smx_cond_t cond)
81 const char *MSG_mailbox_get_alias(msg_mailbox_t mailbox)
83 return mailbox->alias;
86 msg_mailbox_t MSG_mailbox_get_by_alias(const char *alias)
89 msg_mailbox_t mailbox = xbt_dict_get_or_null(msg_mailboxes, alias);
92 mailbox = MSG_mailbox_new(alias);
97 msg_mailbox_t MSG_mailbox_get_by_channel(m_host_t host, m_channel_t channel)
99 xbt_assert0((host != NULL), "Invalid host");
100 xbt_assert1((channel >= 0)
101 && (channel < msg_global->max_channel), "Invalid channel %d",
104 return host->simdata->mailboxes[(size_t) channel];
108 MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, m_task_t *task, m_host_t host,
112 MSG_error_t ret = MSG_OK;
115 /* We no longer support getting a task from a specific host */
116 if (host) THROW_UNIMPLEMENTED;
120 memset(&comm,0,sizeof(comm));
122 /* Kept for compatibility with older implementation */
123 xbt_assert1(!MSG_mailbox_get_cond(mailbox),
124 "A process is already blocked on this channel %s",
125 MSG_mailbox_get_alias(mailbox));
128 xbt_assert0(task, "Null pointer for the task storage");
131 CRITICAL0("MSG_task_get() was asked to write in a non empty task struct.");
133 /* Try to receive it by calling SIMIX network layer */
135 SIMIX_network_recv(mailbox->rdv, timeout, task, NULL, &comm);
136 //INFO2("Got task %s from %s",(*task)->name,mailbox->alias);
137 (*task)->simdata->refcount--;
142 ret = MSG_HOST_FAILURE;
145 ret = MSG_TRANSFER_FAILURE;
148 ret = MSG_TIMEOUT_FAILURE;
151 xbt_die(bprintf("Unhandled SIMIX network exception: %s",e.msg));
160 MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task,
164 MSG_error_t ret = MSG_OK;
165 simdata_task_t t_simdata = NULL;
166 m_process_t process = MSG_process_self();
170 /* Prepare the task to send */
171 t_simdata = task->simdata;
172 t_simdata->sender = process;
173 t_simdata->source = MSG_host_self();
175 xbt_assert0(t_simdata->refcount == 1,
176 "This task is still being used somewhere else. You cannot send it now. Go fix your code!");
178 t_simdata->refcount++;
179 msg_global->sent_msg++;
181 process->simdata->waiting_task = task;
183 /* Try to send it by calling SIMIX network layer */
185 /* Kept for semantical compatibility with older implementation */
187 SIMIX_cond_signal(mailbox->cond);
189 SIMIX_network_send(mailbox->rdv, t_simdata->message_size, t_simdata->rate,
190 timeout, task, sizeof(void*), &t_simdata->comm, task);
196 ret = MSG_HOST_FAILURE;
199 ret = MSG_TRANSFER_FAILURE;
202 ret = MSG_TIMEOUT_FAILURE;
205 xbt_die(bprintf("Unhandled SIMIX network exception: %s",e.msg));
209 /* Decrement the refcount only on failure */
210 t_simdata->refcount--;
213 process->simdata->waiting_task = NULL;