1 /* Copyright (c) 2007-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #ifndef SIMGRID_MC_STATE_H
8 #define SIMGRID_MC_STATE_H
11 #include <xbt/dynar.h>
13 #include <simgrid_config.h>
14 #include "src/simix/smx_private.h"
15 #include "src/mc/mc_snapshot.h"
19 extern XBT_PRIVATE mc_global_t initial_global_state;
21 /* Possible exploration status of a process in a state */
23 MC_NOT_INTERLEAVE=0, /* Do not interleave (do not execute) */
24 MC_INTERLEAVE, /* Interleave the process (one or more request) */
25 MC_MORE_INTERLEAVE, /* Interleave twice the process (for mc_random simcall) */
26 MC_DONE /* Already interleaved */
27 } e_mc_process_state_t;
29 /* On every state, each process has an entry of the following type */
30 typedef struct mc_procstate{
31 e_mc_process_state_t state; /* Exploration control information */
32 unsigned int interleave_count; /* Number of times that the process was
34 } s_mc_procstate_t, *mc_procstate_t;
36 /* An exploration state.
38 * The `executed_state` is sometimes transformed into another `internal_req`.
39 * For example WAITANY is transformes into a WAIT and TESTANY into TEST.
40 * See `MC_state_set_executed_request()`.
42 typedef struct XBT_PRIVATE mc_state {
43 unsigned long max_pid; /* Maximum pid at state's creation time */
44 mc_procstate_t proc_status; /* State's exploration status by process */
45 s_smx_synchro_t internal_comm; /* To be referenced by the internal_req */
46 s_smx_simcall_t internal_req; /* Internal translation of request */
47 s_smx_simcall_t executed_req; /* The executed request of the state */
48 int req_num; /* The request number (in the case of a
49 multi-request like waitany ) */
50 mc_snapshot_t system_state; /* Snapshot of system state */
52 int in_visited_states;
53 // comm determinism verification (xbt_dynar_t<xbt_dynar_t<mc_comm_pattern_t>):
54 xbt_dynar_t incomplete_comm_pattern;
55 xbt_dynar_t index_comm; // comm determinism verification
56 } s_mc_state_t, *mc_state_t;
58 XBT_PRIVATE mc_state_t MC_state_new(void);
59 XBT_PRIVATE void MC_state_delete(mc_state_t state, int free_snapshot);
60 XBT_PRIVATE void MC_state_interleave_process(mc_state_t state, smx_process_t process);
61 XBT_PRIVATE unsigned int MC_state_interleave_size(mc_state_t state);
62 XBT_PRIVATE int MC_state_process_is_done(mc_state_t state, smx_process_t process);
63 XBT_PRIVATE void MC_state_set_executed_request(mc_state_t state, smx_simcall_t req, int value);
64 XBT_PRIVATE smx_simcall_t MC_state_get_executed_request(mc_state_t state, int *value);
65 XBT_PRIVATE smx_simcall_t MC_state_get_internal_request(mc_state_t state);
66 XBT_PRIVATE smx_simcall_t MC_state_get_request(mc_state_t state, int *value);
67 XBT_PRIVATE void MC_state_remove_interleave_process(mc_state_t state, smx_process_t process);