static void SIMIX_waitany_req_remove_from_actions(smx_req_t req);
static void SIMIX_comm_copy_data(smx_action_t comm);
static smx_action_t SIMIX_comm_new(e_smx_comm_type_t type);
-static void SIMIX_comm_remove_from_processes(smx_action_t action);
static XBT_INLINE void SIMIX_rdv_push(smx_rdv_t rdv, smx_action_t comm);
static XBT_INLINE void SIMIX_rdv_remove(smx_rdv_t rdv, smx_action_t comm);
static smx_action_t SIMIX_rdv_get_request(smx_rdv_t rdv, e_smx_comm_type_t type,
xbt_fifo_item_t item;
void* req_data = NULL;
- xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t){
+ xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t) {
if (action->comm.type == SIMIX_COMM_SEND) {
req_data = action->comm.src_data;
} else if (action->comm.type == SIMIX_COMM_RECEIVE) {
smx_action_t action;
xbt_fifo_item_t item;
- xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t){
+ xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t) {
if (action->comm.type == SIMIX_COMM_RECEIVE
&& (!match_fun || match_fun(data, action->comm.dst_data))) {
XBT_DEBUG("Found a matching communication action %p", action);
/* alloc structures */
act = xbt_mallocator_get(simix_global->action_mallocator);
+
act->type = SIMIX_ACTION_COMMUNICATE;
act->state = SIMIX_WAITING;
*/
void SIMIX_comm_destroy(smx_action_t action)
{
- XBT_DEBUG("Destroy action %p (refcount:%d)", action, action->comm.refcount);
+ XBT_DEBUG("Destroy action %p (refcount: %d), state: %d",
+ action, action->comm.refcount, action->state);
- if (action->comm.refcount <= 0)
- xbt_die("the refcount of comm %p is already 0 before decreasing it. "
- "That's a bug!", action);
+ xbt_assert(action->comm.refcount > 0,
+ "The refcount of comm %p is already 0 before decreasing it. "
+ "That's a bug!", action);
action->comm.refcount--;
if (action->comm.refcount > 0)
}
}
+/**
+ * \brief Answers the SIMIX requests associated to a communication action.
+ * \param action a finished communication action
+ */
void SIMIX_comm_finish(smx_action_t action)
{
unsigned int destroy_count = 0;
smx_req_t req;
- SIMIX_comm_remove_from_processes(action);
-
while ((req = xbt_fifo_shift(action->request_list))) {
/* If a waitany request is waiting for this action to finish, then remove
}
break;
+ case SIMIX_CANCELED:
+ TRY {
+ if (req->issuer == action->comm.dst_proc) {
+ THROWF(cancel_error, 0, "Communication canceled by the sender");
+ }
+ else {
+ THROWF(cancel_error, 0, "Communication canceled by the receiver");
+ }
+ }
+ CATCH(req->issuer->running_ctx->exception) {
+ req->issuer->doexception = 1;
+ }
+ break;
+
default:
- THROW_IMPOSSIBLE;
+ xbt_die("Unexpected action state in SIMIX_comm_finish: %d", action->state);
}
/* if there is an exception during a waitany or a testany, indicate the position of the failed communication */
SIMIX_comm_destroy(action);
}
+/**
+ * \brief This function is called when a Surf communication action is finished.
+ * \param action the corresponding Simix communication
+ */
void SIMIX_post_comm(smx_action_t action)
{
/* Update action state */
/* destroy the surf actions associated with the Simix communication */
SIMIX_comm_destroy_internal_actions(action);
- /* if there are requests associated with the action, then answer them */
- if (xbt_fifo_size(action->request_list)) {
- SIMIX_comm_finish(action);
- }
- else {
- SIMIX_comm_remove_from_processes(action);
- }
-}
-
-/**
- * \brief Removes a communication action from the list of pending communications
- * of both processes (if they still exist)
- * \param action a communication action
- */
-static void SIMIX_comm_remove_from_processes(smx_action_t action) {
-
+ /* remove the communication action from the list of pending communications
+ * of both processes (if they still exist) */
if (action->comm.src_proc) {
xbt_fifo_remove(action->comm.src_proc->comms, action);
}
if (action->comm.dst_proc) {
xbt_fifo_remove(action->comm.dst_proc->comms, action);
}
+
+ /* if there are requests associated with the action, then answer them */
+ if (xbt_fifo_size(action->request_list)) {
+ SIMIX_comm_finish(action);
+ }
}
void SIMIX_comm_cancel(smx_action_t action)
SIMIX_rdv_remove(action->comm.rdv, action);
action->state = SIMIX_CANCELED;
}
- else if (!MC_IS_ENABLED
+ else if (!MC_IS_ENABLED /* when running the MC there are no surf actions */
&& (action->state == SIMIX_READY || action->state == SIMIX_RUNNING)) {
- /* when running the MC there are no surf actions */
surf_workstation_model->action_cancel(action->comm.surf_comm);
}
}