1 /* $Id: private.h 5497 2008-05-26 12:19:15Z cristianrosa $ */
3 /* Copyright (c) 2007 Arnaud Legrand, Bruno Donnassolo.
4 All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
15 #include "mc/datatypes.h"
17 #include "xbt/config.h"
18 #include "xbt/function_types.h"
19 #include "xbt/mmalloc.h"
20 #include "../simix/private.h"
21 #include "xbt/automaton.h"
23 /****************************** Snapshots ***********************************/
25 typedef struct s_mc_mem_region{
29 } s_mc_mem_region_t, *mc_mem_region_t;
31 typedef struct s_mc_snapshot{
33 mc_mem_region_t *regions;
34 } s_mc_snapshot_t, *mc_snapshot_t;
36 void MC_take_snapshot(mc_snapshot_t);
37 void MC_restore_snapshot(mc_snapshot_t);
38 void MC_free_snapshot(mc_snapshot_t);
40 /********************************* MC Global **********************************/
41 extern double *mc_time;
43 /* Bound of the MC depth-first search algorithm */
44 #define MAX_DEPTH 1000
46 int MC_deadlock_check(void);
47 void MC_replay(xbt_fifo_t stack);
48 void MC_wait_for_requests(void);
49 void MC_get_enabled_processes();
50 void MC_show_deadlock(smx_req_t req);
51 void MC_show_stack(xbt_fifo_t stack);
52 void MC_dump_stack(xbt_fifo_t stack);
54 /********************************* Requests ***********************************/
55 int MC_request_depend(smx_req_t req1, smx_req_t req2);
56 char* MC_request_to_string(smx_req_t req, int value);
57 unsigned int MC_request_testany_fail(smx_req_t req);
58 /*int MC_waitany_is_enabled_by_comm(smx_req_t req, unsigned int comm);*/
59 int MC_request_is_visible(smx_req_t req);
60 int MC_request_is_enabled(smx_req_t req);
61 int MC_request_is_enabled_by_idx(smx_req_t req, unsigned int idx);
62 int MC_process_is_enabled(smx_process_t process);
64 /********************************** DPOR **************************************/
65 void MC_dpor_init(void);
67 void MC_dpor_exit(void);
69 /******************************** States **************************************/
70 /* Possible exploration status of a process in a state */
72 MC_NOT_INTERLEAVE=0, /* Do not interleave (do not execute) */
73 MC_INTERLEAVE, /* Interleave the process (one or more request) */
74 MC_DONE /* Already interleaved */
75 } e_mc_process_state_t;
77 /* On every state, each process has an entry of the following type */
78 typedef struct mc_procstate{
79 e_mc_process_state_t state; /* Exploration control information */
80 unsigned int interleave_count; /* Number of times that the process was
82 } s_mc_procstate_t, *mc_procstate_t;
84 /* An exploration state is composed of: */
85 typedef struct mc_state {
86 unsigned long max_pid; /* Maximum pid at state's creation time */
87 mc_procstate_t proc_status; /* State's exploration status by process */
88 s_smx_action_t internal_comm; /* To be referenced by the internal_req */
89 s_smx_req_t internal_req; /* Internal translation of request */
90 s_smx_req_t executed_req; /* The executed request of the state */
91 int req_num; /* The request number (in the case of a
92 multi-request like waitany ) */
93 } s_mc_state_t, *mc_state_t;
95 extern xbt_fifo_t mc_stack;
97 mc_state_t MC_state_new(void);
98 void MC_state_delete(mc_state_t state);
99 void MC_state_interleave_process(mc_state_t state, smx_process_t process);
100 unsigned int MC_state_interleave_size(mc_state_t state);
101 int MC_state_process_is_done(mc_state_t state, smx_process_t process);
102 void MC_state_set_executed_request(mc_state_t state, smx_req_t req, int value);
103 smx_req_t MC_state_get_executed_request(mc_state_t state, int *value);
104 smx_req_t MC_state_get_internal_request(mc_state_t state);
105 smx_req_t MC_state_get_request(mc_state_t state, int *value);
107 /****************************** Statistics ************************************/
108 typedef struct mc_stats {
109 unsigned long state_size;
110 unsigned long visited_states;
111 unsigned long expanded_states;
112 unsigned long executed_transitions;
113 } s_mc_stats_t, *mc_stats_t;
115 extern mc_stats_t mc_stats;
117 void MC_print_statistics(mc_stats_t);
119 /********************************** MEMORY ******************************/
120 /* The possible memory modes for the modelchecker are standard and raw. */
121 /* Normally the system should operate in std, for switching to raw mode */
122 /* you must wrap the code between MC_SET_RAW_MODE and MC_UNSET_RAW_MODE */
124 extern void *std_heap;
125 extern void *raw_heap;
126 /* extern int raw_heap_fd; */ /* unused */
127 #define STD_HEAP_SIZE 20480000 /* Maximum size of the system's heap */
129 /* FIXME: Horrible hack! because the mmalloc library doesn't provide yet of */
130 /* an API to query about the status of a heap, we simply call mmstats and */
131 /* because I now how does structure looks like, then I redefine it here */
134 size_t bytes_total; /* Total size of the heap. */
135 size_t chunks_used; /* Chunks allocated by the user. */
136 size_t bytes_used; /* Byte total of user-allocated chunks. */
137 size_t chunks_free; /* Chunks in the free list. */
138 size_t bytes_free; /* Byte total of chunks in the free list. */
141 #define MC_SET_RAW_MEM mmalloc_set_current_heap(raw_heap)
142 #define MC_UNSET_RAW_MEM mmalloc_set_current_heap(std_heap)
144 /******************************* MEMORY MAPPINGS ***************************/
145 /* These functions and data structures implements a binary interface for */
146 /* the proc maps ascii interface */
148 /* Each field is defined as documented in proc's manual page */
149 typedef struct s_map_region {
151 void *start_addr; /* Start address of the map */
152 void *end_addr; /* End address of the map */
153 int prot; /* Memory protection */
154 int flags; /* Aditional memory flags */
155 void *offset; /* Offset in the file/whatever */
156 char dev_major; /* Major of the device */
157 char dev_minor; /* Minor of the device */
158 unsigned long inode; /* Inode in the device */
159 char *pathname; /* Path name of the mapped file */
163 typedef struct s_memory_map {
165 s_map_region *regions; /* Pointer to an array of regions */
166 int mapsize; /* Number of regions in the memory */
168 } s_memory_map_t, *memory_map_t;
170 memory_map_t get_memory_map(void);
172 /********************************** DFS **************************************/
174 typedef struct s_mc_pairs{
175 mc_snapshot_t system_state;
176 mc_state_t graph_state;
177 xbt_state_t automaton_state;
180 }s_mc_pairs_t, *mc_pairs_t;
182 void MC_dfs_init(xbt_automaton_t a);
183 void MC_dfs(xbt_automaton_t automaton, int search_cycle);
184 int MC_automaton_evaluate_label(xbt_automaton_t a, xbt_exp_label_t l);
185 mc_pairs_t new_pair(mc_snapshot_t sn, mc_state_t sg, xbt_state_t st);
186 void set_pair_visited(mc_pairs_t p);
187 int pair_reached(xbt_dynar_t p, int num_pair);