1 /* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "../simix/smx_private.h"
8 #include "mc_private.h"
11 * \brief Creates a state data structure used by the exploration algorithm
13 mc_state_t MC_state_new()
15 mc_state_t state = NULL;
17 state = xbt_new0(s_mc_state_t, 1);
18 state->max_pid = simix_process_maxpid;
19 state->proc_status = xbt_new0(s_mc_procstate_t, state->max_pid);
20 state->system_state = NULL;
22 mc_stats->expanded_states++;
26 mc_state_t MC_state_pair_new(void)
28 mc_state_t state = NULL;
30 state = xbt_new0(s_mc_state_t, 1);
31 state->max_pid = simix_process_maxpid;
32 state->proc_status = xbt_new0(s_mc_procstate_t, state->max_pid);
34 //mc_stats->expanded_states++;
39 * \brief Deletes a state data structure
40 * \param trans The state to be deleted
42 void MC_state_delete(mc_state_t state)
44 xbt_free(state->proc_status);
48 void MC_state_interleave_process(mc_state_t state, smx_process_t process)
50 state->proc_status[process->pid].state = MC_INTERLEAVE;
51 state->proc_status[process->pid].interleave_count = 0;
54 unsigned int MC_state_interleave_size(mc_state_t state)
56 unsigned int i, size=0;
58 for(i=0; i < state->max_pid; i++){
59 if(state->proc_status[i].state == MC_INTERLEAVE)
66 int MC_state_process_is_done(mc_state_t state, smx_process_t process){
67 return state->proc_status[process->pid].state == MC_DONE ? TRUE : FALSE;
70 void MC_state_set_executed_request(mc_state_t state, smx_simcall_t req, int value)
72 state->executed_req = *req;
73 state->req_num = value;
75 /* The waitany and testany request are transformed into a wait or test request over the
76 * corresponding communication action so it can be treated later by the dependence
79 case SIMCALL_COMM_WAITANY:
80 state->internal_req.call = SIMCALL_COMM_WAIT;
81 state->internal_req.issuer = req->issuer;
82 state->internal_comm = *xbt_dynar_get_as(req->comm_waitany.comms, value, smx_action_t);
83 state->internal_req.comm_wait.comm = &state->internal_comm;
84 state->internal_req.comm_wait.timeout = 0;
87 case SIMCALL_COMM_TESTANY:
88 state->internal_req.call = SIMCALL_COMM_TEST;
89 state->internal_req.issuer = req->issuer;
92 state->internal_comm = *xbt_dynar_get_as(req->comm_testany.comms, value, smx_action_t);
94 state->internal_req.comm_wait.comm = &state->internal_comm;
95 state->internal_req.comm_test.result = value;
98 case SIMCALL_COMM_WAIT:
99 state->internal_req = *req;
100 state->internal_comm = *(req->comm_wait.comm);
101 state->executed_req.comm_wait.comm = &state->internal_comm;
102 state->internal_req.comm_wait.comm = &state->internal_comm;
105 case SIMCALL_COMM_TEST:
106 state->internal_req = *req;
107 state->internal_comm = *req->comm_test.comm;
108 state->executed_req.comm_test.comm = &state->internal_comm;
109 state->internal_req.comm_test.comm = &state->internal_comm;
113 state->internal_req = *req;
118 smx_simcall_t MC_state_get_executed_request(mc_state_t state, int *value)
120 *value = state->req_num;
121 return &state->executed_req;
124 smx_simcall_t MC_state_get_internal_request(mc_state_t state)
126 return &state->internal_req;
129 smx_simcall_t MC_state_get_request(mc_state_t state, int *value)
131 smx_process_t process = NULL;
132 mc_procstate_t procstate = NULL;
133 unsigned int start_count;
135 xbt_swag_foreach(process, simix_global->process_list){
136 procstate = &state->proc_status[process->pid];
138 if(procstate->state == MC_INTERLEAVE){
139 if(MC_process_is_enabled(process)){
140 switch(process->simcall.call){
141 case SIMCALL_COMM_WAITANY:
143 while(procstate->interleave_count < xbt_dynar_length(process->simcall.comm_waitany.comms)){
144 if(MC_request_is_enabled_by_idx(&process->simcall, procstate->interleave_count++)){
145 *value = procstate->interleave_count-1;
150 if(procstate->interleave_count >= xbt_dynar_length(process->simcall.comm_waitany.comms))
151 procstate->state = MC_DONE;
154 return &process->simcall;
158 case SIMCALL_COMM_TESTANY:
159 start_count = procstate->interleave_count;
161 while(procstate->interleave_count < xbt_dynar_length(process->simcall.comm_testany.comms)){
162 if(MC_request_is_enabled_by_idx(&process->simcall, procstate->interleave_count++)){
163 *value = procstate->interleave_count - 1;
168 if(procstate->interleave_count >= xbt_dynar_length(process->simcall.comm_testany.comms))
169 procstate->state = MC_DONE;
171 if(*value != -1 || start_count == 0)
172 return &process->simcall;
176 case SIMCALL_COMM_WAIT:
177 if(process->simcall.comm_wait.comm->comm.src_proc
178 && process->simcall.comm_wait.comm->comm.dst_proc){
183 procstate->state = MC_DONE;
184 return &process->simcall;
189 procstate->state = MC_DONE;
191 return &process->simcall;