xbt_assert0(!(h_simdata->sleeping[channel]),
"A process is already blocked on this channel");
h_simdata->sleeping[channel] = process; /* I'm waiting. Wake me up when you're ready */
- MSG_process_suspend(process);
+ __MSG_process_block();
if(surf_workstation_resource->extension_public->get_state(h_simdata->host)
== SURF_CPU_OFF)
MSG_RETURN(MSG_HOST_FAILURE);
h->simdata->host, t_simdata->message_size);
surf_workstation_resource->common_public->action_set_data(t_simdata->comm,t);
- if(MSG_process_isSuspended(t_simdata->sender))
- MSG_process_resume(t_simdata->sender);
+ if(__MSG_process_isBlocked(t_simdata->sender))
+ __MSG_process_unblock(t_simdata->sender);
do {
__MSG_task_wait_event(process, t);
mbox[channel], task);
if(remote_host->simdata->sleeping[channel])
- MSG_process_resume(remote_host->simdata->sleeping[channel]);
+ __MSG_process_unblock(remote_host->simdata->sleeping[channel]);
else {
process->simdata->put_host = dest;
process->simdata->put_channel = channel;
while(!(task_simdata->comm))
- MSG_process_suspend(process);
+ __MSG_process_block();
process->simdata->put_host = NULL;
process->simdata->put_channel = -1;
}
== SURF_CPU_OFF)
MSG_RETURN(MSG_HOST_FAILURE);
- if(MSG_process_isSuspended(process)) {
- MSG_process_suspend(MSG_process_self());
+ if(__MSG_process_isBlocked(process)) {
+ __MSG_process_unblock(MSG_process_self());
}
if(surf_workstation_resource->extension_public->
get_state(MSG_process_get_host(process)->simdata->host)
xbt_assert0(((simdata_task->compute)||(simdata_task->comm))&&
!((simdata_task->comm)&&(simdata_task->comm)),
"Got a problem in deciding which action to choose !");
+ simdata->suspended = 1;
if(simdata_task->compute)
surf_workstation_resource->extension_public->suspend(simdata_task->compute);
else
m_task_t dummy = MSG_TASK_UNINITIALIZED;
dummy = MSG_task_create("suspended", 0.0, 0, NULL);
+ simdata->suspended = 1;
__MSG_task_execute(process,dummy);
surf_workstation_resource->extension_public->suspend(dummy->simdata->compute);
__MSG_wait_for_computation(process,dummy);
+ simdata->suspended = 0;
MSG_task_destroy(dummy);
}
CHECK_HOST();
simdata = process->simdata;
+
+ if(simdata->blocked) {
+ simdata->suspended = 0; /* He'll wake up by itself */
+ MSG_RETURN(MSG_OK);
+ }
+
if(!(simdata->waiting_task)) {
xbt_assert0(0,"Process not waiting for anything else. Weird !");
return MSG_WARNING;
}
simdata_task = simdata->waiting_task->simdata;
+
if(simdata_task->compute)
surf_workstation_resource->extension_public->resume(simdata_task->compute);
else
* task on which it was waiting for the completion.
*/
int MSG_process_isSuspended(m_process_t process)
+{
+ xbt_assert0(((process != NULL) && (process->simdata)), "Invalid parameters");
+
+ return (process->simdata->suspended);
+}
+
+
+
+
+
+MSG_error_t __MSG_process_block()
+{
+ m_process_t process = MSG_process_self();
+
+ m_task_t dummy = MSG_TASK_UNINITIALIZED;
+ dummy = MSG_task_create("blocked", 0.0, 0, NULL);
+
+ process->simdata->blocked=1;
+ __MSG_task_execute(process,dummy);
+ surf_workstation_resource->extension_public->suspend(dummy->simdata->compute);
+ __MSG_wait_for_computation(process,dummy);
+ process->simdata->blocked=0;
+
+ if(process->simdata->suspended)
+ MSG_process_suspend(process);
+
+ MSG_task_destroy(dummy);
+
+ return MSG_OK;
+}
+
+MSG_error_t __MSG_process_unblock(m_process_t process)
{
simdata_process_t simdata = NULL;
simdata_task_t simdata_task = NULL;
int i;
-
+
xbt_assert0(((process != NULL) && (process->simdata)), "Invalid parameters");
+ CHECK_HOST();
simdata = process->simdata;
if(!(simdata->waiting_task)) {
xbt_assert0(0,"Process not waiting for anything else. Weird !");
- return 0;
+ return MSG_WARNING;
}
-
simdata_task = simdata->waiting_task->simdata;
- if(simdata_task->compute)
- return surf_workstation_resource->extension_public->is_suspended(simdata_task->compute);
- else
- return surf_workstation_resource->extension_public->is_suspended(simdata_task->comm);
+ xbt_assert0(simdata->blocked,"Process not blocked");
+
+ surf_workstation_resource->extension_public->resume(simdata_task->compute);
+
+ MSG_RETURN(MSG_OK);
+}
+
+int __MSG_process_isBlocked(m_process_t process)
+{
+ xbt_assert0(((process != NULL) && (process->simdata)), "Invalid parameters");
+
+ return (process->simdata->blocked);
}
int PID; /* used for debugging purposes */
int PPID; /* The parent PID */
m_task_t waiting_task;
+ int blocked;
+ int suspended;
m_host_t put_host; /* used for debugging purposes */
m_channel_t put_channel; /* used for debugging purposes */
int argc; /* arguments number if any */
MSG_error_t __MSG_wait_for_computation(m_process_t process, m_task_t task);
MSG_error_t __MSG_task_wait_event(m_process_t process, m_task_t task);
+MSG_error_t __MSG_process_block();
+MSG_error_t __MSG_process_unblock(m_process_t process);
+int __MSG_process_isBlocked(m_process_t process);
+
#endif