-/* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */
+/* Copyright (c) 2008-2014. The SimGrid Team.
+ * All rights reserved. */
/* 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. */
+#include <assert.h>
+
#include "../simix/smx_private.h"
#include "xbt/fifo.h"
+#include "mc_state.h"
+#include "mc_request.h"
#include "mc_private.h"
+#include "mc_comm_pattern.h"
+#include "mc_smx.h"
/**
* \brief Creates a state data structure used by the exploration algorithm
*/
mc_state_t MC_state_new()
{
- mc_state_t state = NULL;
-
- state = xbt_new0(s_mc_state_t, 1);
- state->max_pid = simix_process_maxpid;
+ mc_state_t state = xbt_new0(s_mc_state_t, 1);
+ state->max_pid = MC_smx_get_maxpid();
state->proc_status = xbt_new0(s_mc_procstate_t, state->max_pid);
state->system_state = NULL;
-
- mc_stats->expanded_states++;
- return state;
-}
-
-mc_state_t MC_state_pair_new(void)
-{
- mc_state_t state = NULL;
-
- state = xbt_new0(s_mc_state_t, 1);
- state->max_pid = simix_process_maxpid;
- state->proc_status = xbt_new0(s_mc_procstate_t, state->max_pid);
-
- //mc_stats->expanded_states++;
+ state->num = ++mc_stats->expanded_states;
+ state->in_visited_states = 0;
+ state->incomplete_comm_pattern = NULL;
+ /* Stateful model checking */
+ if((_sg_mc_checkpoint > 0 && (mc_stats->expanded_states % _sg_mc_checkpoint == 0)) || _sg_mc_termination){
+ state->system_state = MC_take_snapshot(state->num);
+ if(_sg_mc_comms_determinism || _sg_mc_send_determinism){
+ MC_state_copy_incomplete_communications_pattern(state);
+ MC_state_copy_index_communications_pattern(state);
+ }
+ }
return state;
}
* \brief Deletes a state data structure
* \param trans The state to be deleted
*/
-void MC_state_delete(mc_state_t state)
-{
- if(state->system_state)
+void MC_state_delete(mc_state_t state, int free_snapshot){
+ if (state->system_state && free_snapshot){
MC_free_snapshot(state->system_state);
+ }
+ if(_sg_mc_comms_determinism || _sg_mc_send_determinism){
+ xbt_free(state->index_comm);
+ xbt_free(state->incomplete_comm_pattern);
+ }
xbt_free(state->proc_status);
xbt_free(state);
}
void MC_state_interleave_process(mc_state_t state, smx_process_t process)
{
+ assert(state);
state->proc_status[process->pid].state = MC_INTERLEAVE;
state->proc_status[process->pid].interleave_count = 0;
}
void MC_state_remove_interleave_process(mc_state_t state, smx_process_t process)
{
- if(state->proc_status[process->pid].state == MC_INTERLEAVE)
+ if (state->proc_status[process->pid].state == MC_INTERLEAVE)
state->proc_status[process->pid].state = MC_DONE;
}
unsigned int MC_state_interleave_size(mc_state_t state)
{
- unsigned int i, size=0;
+ unsigned int i, size = 0;
- for(i=0; i < state->max_pid; i++){
- if(state->proc_status[i].state == MC_INTERLEAVE)
+ for (i = 0; i < state->max_pid; i++) {
+ if ((state->proc_status[i].state == MC_INTERLEAVE)
+ || (state->proc_status[i].state == MC_MORE_INTERLEAVE))
size++;
}
return size;
}
-int MC_state_process_is_done(mc_state_t state, smx_process_t process){
+int MC_state_process_is_done(mc_state_t state, smx_process_t process)
+{
return state->proc_status[process->pid].state == MC_DONE ? TRUE : FALSE;
}
-void MC_state_set_executed_request(mc_state_t state, smx_simcall_t req, int value)
+void MC_state_set_executed_request(mc_state_t state, smx_simcall_t req,
+ int value)
{
state->executed_req = *req;
state->req_num = value;
+ smx_process_t process = NULL;
+ mc_procstate_t procstate = NULL;
/* The waitany and testany request are transformed into a wait or test request over the
* corresponding communication action so it can be treated later by the dependence
* function. */
- switch(req->call){
- case SIMCALL_COMM_WAITANY:
- state->internal_req.call = SIMCALL_COMM_WAIT;
- state->internal_req.issuer = req->issuer;
- state->internal_comm = *xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_action_t);
- simcall_comm_wait__set__comm(&state->internal_req, &state->internal_comm);
- simcall_comm_wait__set__timeout(&state->internal_req, 0);
- break;
-
- case SIMCALL_COMM_TESTANY:
- state->internal_req.call = SIMCALL_COMM_TEST;
- state->internal_req.issuer = req->issuer;
-
- if(value > 0)
- state->internal_comm = *xbt_dynar_get_as(simcall_comm_testany__get__comms(req), value, smx_action_t);
-
- simcall_comm_test__set__comm(&state->internal_req, &state->internal_comm);
- simcall_comm_test__set__result(&state->internal_req, value);
- break;
-
- case SIMCALL_COMM_WAIT:
- state->internal_req = *req;
- state->internal_comm = *(simcall_comm_wait__get__comm(req));
- simcall_comm_wait__set__comm(&state->executed_req, &state->internal_comm);
- simcall_comm_wait__set__comm(&state->internal_req, &state->internal_comm);
- break;
-
- case SIMCALL_COMM_TEST:
- state->internal_req = *req;
- state->internal_comm = *simcall_comm_test__get__comm(req);
- simcall_comm_test__set__comm(&state->executed_req, &state->internal_comm);
- simcall_comm_test__set__comm(&state->internal_req, &state->internal_comm);
- break;
-
- default:
- state->internal_req = *req;
- break;
+ switch (req->call) {
+ case SIMCALL_COMM_WAITANY:
+ state->internal_req.call = SIMCALL_COMM_WAIT;
+ state->internal_req.issuer = req->issuer;
+ MC_process_read_dynar_element(&mc_model_checker->process,
+ &state->internal_comm, simcall_comm_waitany__get__comms(req),
+ sizeof(state->internal_comm));
+ simcall_comm_wait__set__comm(&state->internal_req, &state->internal_comm);
+ simcall_comm_wait__set__timeout(&state->internal_req, 0);
+ break;
+
+ case SIMCALL_COMM_TESTANY:
+ state->internal_req.call = SIMCALL_COMM_TEST;
+ state->internal_req.issuer = req->issuer;
+
+ if (value > 0)
+ // FIXME, read from remote process
+ MC_process_read_dynar_element(&mc_model_checker->process,
+ &state->internal_comm, simcall_comm_testany__get__comms(req),
+ sizeof(state->internal_comm));
+
+ simcall_comm_test__set__comm(&state->internal_req, &state->internal_comm);
+ simcall_comm_test__set__result(&state->internal_req, value);
+ break;
+
+ case SIMCALL_COMM_WAIT:
+ state->internal_req = *req;
+ MC_process_read_simple(&mc_model_checker->process, &state->internal_comm ,
+ simcall_comm_wait__get__comm(req), sizeof(state->internal_comm));
+ simcall_comm_wait__set__comm(&state->executed_req, &state->internal_comm);
+ simcall_comm_wait__set__comm(&state->internal_req, &state->internal_comm);
+ break;
+
+ case SIMCALL_COMM_TEST:
+ state->internal_req = *req;
+ MC_process_read_simple(&mc_model_checker->process, &state->internal_comm,
+ simcall_comm_test__get__comm(req), sizeof(state->internal_comm));
+ simcall_comm_test__set__comm(&state->executed_req, &state->internal_comm);
+ simcall_comm_test__set__comm(&state->internal_req, &state->internal_comm);
+ break;
+
+ case SIMCALL_MC_RANDOM:
+ state->internal_req = *req;
+ int random_max = simcall_mc_random__get__max(req);
+ if (value != random_max) {
+ MC_EACH_SIMIX_PROCESS(process,
+ procstate = &state->proc_status[process->pid];
+ const smx_process_t issuer = MC_smx_simcall_get_issuer(req);
+ if (process->pid == issuer->pid) {
+ procstate->state = MC_MORE_INTERLEAVE;
+ break;
+ }
+ );
+ }
+ break;
+
+ default:
+ state->internal_req = *req;
+ break;
}
}
smx_process_t process = NULL;
mc_procstate_t procstate = NULL;
unsigned int start_count;
+ smx_synchro_t act = NULL;
- xbt_swag_foreach(process, simix_global->process_list){
+ MC_EACH_SIMIX_PROCESS(process,
procstate = &state->proc_status[process->pid];
- if(procstate->state == MC_INTERLEAVE){
- if(MC_process_is_enabled(process)){
- switch(process->simcall.call){
- case SIMCALL_COMM_WAITANY:
- *value = -1;
- while(procstate->interleave_count < xbt_dynar_length(simcall_comm_waitany__get__comms(&process->simcall))){
- if(MC_request_is_enabled_by_idx(&process->simcall, procstate->interleave_count++)){
- *value = procstate->interleave_count-1;
- break;
- }
+ if (procstate->state != MC_INTERLEAVE
+ && procstate->state != MC_MORE_INTERLEAVE)
+ continue;
+ if (!MC_process_is_enabled(process))
+ continue;
+
+ switch (process->simcall.call) {
+ case SIMCALL_COMM_WAITANY:
+ *value = -1;
+ while (procstate->interleave_count <
+ MC_process_read_dynar_length(&mc_model_checker->process,
+ simcall_comm_waitany__get__comms(&process->simcall))) {
+ if (MC_request_is_enabled_by_idx
+ (&process->simcall, procstate->interleave_count++)) {
+ *value = procstate->interleave_count - 1;
+ break;
}
+ }
- if(procstate->interleave_count >= xbt_dynar_length(simcall_comm_waitany__get__comms(&process->simcall)))
- procstate->state = MC_DONE;
-
- if(*value != -1)
- return &process->simcall;
+ if (procstate->interleave_count >=
+ MC_process_read_dynar_length(&mc_model_checker->process,
+ simcall_comm_waitany__get__comms(&process->simcall)))
+ procstate->state = MC_DONE;
- break;
+ if (*value != -1)
+ return &process->simcall;
- case SIMCALL_COMM_TESTANY:
- start_count = procstate->interleave_count;
- *value = -1;
- while(procstate->interleave_count < xbt_dynar_length(simcall_comm_testany__get__comms(&process->simcall))){
- if(MC_request_is_enabled_by_idx(&process->simcall, procstate->interleave_count++)){
- *value = procstate->interleave_count - 1;
- break;
- }
+ break;
+
+ case SIMCALL_COMM_TESTANY:
+ start_count = procstate->interleave_count;
+ *value = -1;
+ while (procstate->interleave_count <
+ MC_process_read_dynar_length(&mc_model_checker->process,
+ simcall_comm_testany__get__comms(&process->simcall))) {
+ if (MC_request_is_enabled_by_idx
+ (&process->simcall, procstate->interleave_count++)) {
+ *value = procstate->interleave_count - 1;
+ break;
}
+ }
- if(procstate->interleave_count >= xbt_dynar_length(simcall_comm_testany__get__comms(&process->simcall)))
- procstate->state = MC_DONE;
+ if (procstate->interleave_count >=
+ MC_process_read_dynar_length(&mc_model_checker->process,
+ simcall_comm_testany__get__comms(&process->simcall)))
+ procstate->state = MC_DONE;
+
+ if (*value != -1 || start_count == 0)
+ return &process->simcall;
- if(*value != -1 || start_count == 0)
- return &process->simcall;
+ break;
- break;
+ case SIMCALL_COMM_WAIT:
+ act = simcall_comm_wait__get__comm(&process->simcall);
- case SIMCALL_COMM_WAIT:
- if(simcall_comm_wait__get__comm(&process->simcall)->comm.src_proc
- && simcall_comm_wait__get__comm(&process->simcall)->comm.dst_proc){
+ if (act->comm.src_proc && act->comm.dst_proc) {
+ *value = 0;
+ } else {
+ if (act->comm.src_proc == NULL && act->comm.type == SIMIX_COMM_READY
+ && act->comm.detached == 1)
*value = 0;
- }else{
+ else
*value = -1;
- }
- procstate->state = MC_DONE;
- return &process->simcall;
+ }
+ procstate->state = MC_DONE;
+ return &process->simcall;
- break;
+ break;
- default:
- procstate->state = MC_DONE;
+ case SIMCALL_MC_RANDOM:
+ if (procstate->state == MC_INTERLEAVE)
*value = 0;
- return &process->simcall;
- break;
- }
- }
+ else {
+ if (state->req_num < simcall_mc_random__get__max(&process->simcall))
+ *value = state->req_num + 1;
+ }
+ procstate->state = MC_DONE;
+ return &process->simcall;
+ break;
+
+ default:
+ procstate->state = MC_DONE;
+ *value = 0;
+ return &process->simcall;
+ break;
+
}
- }
+ );
return NULL;
}
