X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/159f1801b853c2fa95755636d4845b3dbd68ff4f..a2c25e0bae01a59891fac21447f3210ba26302c5:/src/simix/smx_network.c diff --git a/src/simix/smx_network.c b/src/simix/smx_network.c index 2d1a1e907a..d5d4631509 100644 --- a/src/simix/smx_network.c +++ b/src/simix/smx_network.c @@ -18,6 +18,7 @@ unsigned long int smx_total_comms = 0; 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, @@ -63,8 +64,7 @@ void SIMIX_rdv_destroy(smx_rdv_t rdv) void SIMIX_rdv_free(void *data) { smx_rdv_t rdv = (smx_rdv_t) data; - if (rdv->name) - xbt_free(rdv->name); + xbt_free(rdv->name); xbt_fifo_free(rdv->comm_fifo); xbt_free(rdv); } @@ -115,6 +115,9 @@ static XBT_INLINE void SIMIX_rdv_remove(smx_rdv_t rdv, smx_action_t comm) comm->comm.rdv = NULL; } +/** + * \brief Wrapper to SIMIX_rdv_get_request + */ smx_action_t SIMIX_comm_get_send_match(smx_rdv_t rdv, int (*match_fun)(void*, void*), void* data) { return SIMIX_rdv_get_request(rdv, SIMIX_COMM_SEND, match_fun, data); } @@ -127,6 +130,7 @@ smx_action_t SIMIX_comm_get_send_match(smx_rdv_t rdv, int (*match_fun)(void*, vo smx_action_t SIMIX_rdv_get_request(smx_rdv_t rdv, e_smx_comm_type_t type, int (*match_fun)(void *, void *), void *data) { + // FIXME rewrite this function by using SIMIX_rdv_has_send/recv_match smx_action_t action; xbt_fifo_item_t item; void* req_data = NULL; @@ -153,6 +157,48 @@ smx_action_t SIMIX_rdv_get_request(smx_rdv_t rdv, e_smx_comm_type_t type, return NULL; } +/** + * \brief Checks if there is a send communication action + * queued in a rendez-vous matching our needs. + * \return 1 if found, 0 otherwise + */ +int SIMIX_comm_has_send_match(smx_rdv_t rdv, int (*match_fun)(void*, void*), void* data) { + + smx_action_t action; + xbt_fifo_item_t item; + + xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t){ + if (action->comm.type == SIMIX_COMM_SEND + && (!match_fun || match_fun(data, action->comm.src_data))) { + XBT_DEBUG("Found a matching communication action %p", action); + return 1; + } + } + XBT_DEBUG("No matching communication action found"); + return 0; +} + +/** + * \brief Checks if there is a recv communication action + * queued in a rendez-vous matching our needs. + * \return 1 if found, 0 otherwise + */ +int SIMIX_comm_has_recv_match(smx_rdv_t rdv, int (*match_fun)(void*, void*), void* data) { + + smx_action_t action; + xbt_fifo_item_t item; + + 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); + return 1; + } + } + XBT_DEBUG("No matching communication action found"); + return 0; +} + /******************************************************************************/ /* Comunication Actions */ /******************************************************************************/ @@ -212,10 +258,6 @@ void SIMIX_comm_destroy(smx_action_t action) action->latency_limited = SIMIX_comm_is_latency_bounded( action ) ; #endif -#ifdef HAVE_TRACING - TRACE_smx_action_destroy(action); -#endif - xbt_free(action->name); SIMIX_comm_destroy_internal_actions(action); @@ -268,9 +310,10 @@ smx_action_t SIMIX_comm_isend(smx_process_t src_proc, smx_rdv_t rdv, action->state = SIMIX_READY; action->comm.type = SIMIX_COMM_READY; } + xbt_fifo_push(src_proc->comms, action); - /* If the communication action is detached then decrease the refcount - * by one, so it will be eliminated by the receivers destroy call */ + /* if the communication action is detached then decrease the refcount + * by one, so it will be eliminated by the receiver's destroy call */ if (detached) { action->comm.detached = 1; action->comm.refcount--; @@ -311,6 +354,7 @@ smx_action_t SIMIX_comm_irecv(smx_process_t dst_proc, smx_rdv_t rdv, action->state = SIMIX_READY; action->comm.type = SIMIX_COMM_READY; } + xbt_fifo_push(dst_proc->comms, action); /* Setup communication request */ action->comm.dst_proc = dst_proc; @@ -471,6 +515,7 @@ XBT_INLINE void SIMIX_comm_start(smx_action_t action) { /* If both the sender and the receiver are already there, start the communication */ if (action->state == SIMIX_READY) { + smx_host_t sender = action->comm.src_proc->smx_host; smx_host_t receiver = action->comm.dst_proc->smx_host; @@ -484,10 +529,6 @@ XBT_INLINE void SIMIX_comm_start(smx_action_t action) action->state = SIMIX_RUNNING; -#ifdef HAVE_TRACING - TRACE_smx_action_communicate(action, action->comm.src_proc); -#endif - /* If a link is failed, detect it immediately */ if (surf_workstation_model->action_state_get(action->comm.surf_comm) == SURF_ACTION_FAILED) { XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", @@ -511,6 +552,8 @@ 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 @@ -539,7 +582,7 @@ void SIMIX_comm_finish(smx_action_t action) case SIMIX_SRC_TIMEOUT: TRY { - THROW0(timeout_error, 0, "Communication timeouted because of sender"); + THROWF(timeout_error, 0, "Communication timeouted because of sender"); } CATCH(req->issuer->running_ctx->exception) { req->issuer->doexception = 1; @@ -548,7 +591,7 @@ void SIMIX_comm_finish(smx_action_t action) case SIMIX_DST_TIMEOUT: TRY { - THROW0(timeout_error, 0, "Communication timeouted because of receiver"); + THROWF(timeout_error, 0, "Communication timeouted because of receiver"); } CATCH(req->issuer->running_ctx->exception) { req->issuer->doexception = 1; @@ -558,9 +601,9 @@ void SIMIX_comm_finish(smx_action_t action) case SIMIX_SRC_HOST_FAILURE: TRY { if (req->issuer == action->comm.src_proc) - THROW0(host_error, 0, "Host failed"); + THROWF(host_error, 0, "Host failed"); else - THROW0(network_error, 0, "Remote peer failed"); + THROWF(network_error, 0, "Remote peer failed"); } CATCH(req->issuer->running_ctx->exception) { req->issuer->doexception = 1; @@ -570,9 +613,9 @@ void SIMIX_comm_finish(smx_action_t action) case SIMIX_DST_HOST_FAILURE: TRY { if (req->issuer == action->comm.dst_proc) - THROW0(host_error, 0, "Host failed"); + THROWF(host_error, 0, "Host failed"); else - THROW0(network_error, 0, "Remote peer failed"); + THROWF(network_error, 0, "Remote peer failed"); } CATCH(req->issuer->running_ctx->exception) { req->issuer->doexception = 1; @@ -582,9 +625,11 @@ void SIMIX_comm_finish(smx_action_t action) case SIMIX_LINK_FAILURE: TRY { XBT_DEBUG("Link failure in action %p between '%s' and '%s': posting an exception to the issuer: %s (%p)", - action, action->comm.src_proc->smx_host->name, action->comm.dst_proc->smx_host->name, + action, + action->comm.src_proc ? action->comm.src_proc->smx_host->name : NULL, + action->comm.dst_proc ? action->comm.dst_proc->smx_host->name : NULL, req->issuer->name, req->issuer); - THROW0(network_error, 0, "Link failure"); + THROWF(network_error, 0, "Link failure"); } CATCH(req->issuer->running_ctx->exception) { req->issuer->doexception = 1; @@ -635,28 +680,49 @@ void SIMIX_post_comm(smx_action_t action) else action->state = SIMIX_DONE; - XBT_DEBUG("SIMIX_post_comm: action state = %d", action->state); + XBT_DEBUG("SIMIX_post_comm: comm %p, state %d, src_proc %p, dst_proc %p, detached: %d", + action, action->state, action->comm.src_proc, action->comm.dst_proc, action->comm.detached); - /* After this point the surf actions associated with the simix communicate - action are no longer needed, thus we delete them. */ + /* 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)) + /* 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) { + + 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); + } } void SIMIX_comm_cancel(smx_action_t action) { - /* If the action is a waiting state means that it is still in a rdv */ + /* if the action is a waiting state means that it is still in a rdv */ /* so remove from it and delete it */ if (action->state == SIMIX_WAITING) { SIMIX_rdv_remove(action->comm.rdv, action); - action->state = SIMIX_FAILED; - } else { - /* When running the MC there are no surf actions */ - if(!MC_IS_ENABLED) - surf_workstation_model->action_cancel(action->comm.surf_comm); + action->state = SIMIX_CANCELED; + } + else if (!MC_IS_ENABLED + && (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); } } @@ -683,6 +749,10 @@ double SIMIX_comm_get_remains(smx_action_t action) { double remains; + if(!action){ + return 0; + } + switch (action->state) { case SIMIX_RUNNING: @@ -743,6 +813,9 @@ smx_process_t SIMIX_comm_get_dst_proc(smx_action_t action) */ XBT_INLINE int SIMIX_comm_is_latency_bounded(smx_action_t action) { + if(!action){ + return 0; + } if (action->comm.surf_comm){ XBT_DEBUG("Getting latency limited for surf_action (%p)", action->comm.surf_comm); action->latency_limited = surf_workstation_model->get_latency_limited(action->comm.surf_comm); @@ -766,7 +839,7 @@ SIMIX_comm_set_copy_data_callback(void (*callback) (smx_action_t, size_t)) void SIMIX_comm_copy_pointer_callback(smx_action_t comm, size_t buff_size) { - xbt_assert1((buff_size == sizeof(void *)), + xbt_assert((buff_size == sizeof(void *)), "Cannot copy %zu bytes: must be sizeof(void*)", buff_size); *(void **) (comm->comm.dst_buff) = comm->comm.src_buff; }