1 /* Copyright (c) 2007 Arnaud Legrand, Bruno Donnassolo.
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. */
13 #include "mc/datatypes.h"
15 #include "xbt/config.h"
16 #include "xbt/function_types.h"
17 #include "xbt/mmalloc.h"
18 #include "../simix/private.h"
20 /****************************** Snapshots ***********************************/
22 typedef struct s_mc_mem_region{
26 } s_mc_mem_region_t, *mc_mem_region_t;
28 typedef struct s_mc_snapshot{
30 mc_mem_region_t *regions;
31 } s_mc_snapshot_t, *mc_snapshot_t;
33 void MC_take_snapshot(mc_snapshot_t);
34 void MC_restore_snapshot(mc_snapshot_t);
35 void MC_free_snapshot(mc_snapshot_t);
37 /********************************* MC Global **********************************/
38 extern double *mc_time;
40 /* Bound of the MC depth-first search algorithm */
41 #define MAX_DEPTH 1000
43 int MC_deadlock_check(void);
44 void MC_replay(xbt_fifo_t stack);
45 void MC_wait_for_requests(void);
46 void MC_get_enabled_processes();
47 void MC_show_deadlock(smx_req_t req);
48 void MC_show_stack(xbt_fifo_t stack);
49 void MC_dump_stack(xbt_fifo_t stack);
51 /********************************* Requests ***********************************/
52 int MC_request_depend(smx_req_t req1, smx_req_t req2);
53 char* MC_request_to_string(smx_req_t req, int value);
54 unsigned int MC_request_testany_fail(smx_req_t req);
55 /*int MC_waitany_is_enabled_by_comm(smx_req_t req, unsigned int comm);*/
56 int MC_request_is_visible(smx_req_t req);
57 int MC_request_is_enabled(smx_req_t req);
58 int MC_request_is_enabled_by_idx(smx_req_t req, unsigned int idx);
59 int MC_process_is_enabled(smx_process_t process);
61 /********************************** DPOR **************************************/
62 void MC_dpor_init(void);
64 void MC_dpor_exit(void);
66 /******************************** States **************************************/
67 /* Possible exploration status of a process in a state */
69 MC_NOT_INTERLEAVE=0, /* Do not interleave (do not execute) */
70 MC_INTERLEAVE, /* Interleave the process (one or more request) */
71 MC_DONE /* Already interleaved */
72 } e_mc_process_state_t;
74 /* On every state, each process has an entry of the following type */
75 typedef struct mc_procstate{
76 e_mc_process_state_t state; /* Exploration control information */
77 unsigned int interleave_count; /* Number of times that the process was
79 } s_mc_procstate_t, *mc_procstate_t;
81 /* An exploration state is composed of: */
82 typedef struct mc_state {
83 unsigned long max_pid; /* Maximum pid at state's creation time */
84 mc_procstate_t proc_status; /* State's exploration status by process */
85 s_smx_action_t internal_comm; /* To be referenced by the internal_req */
86 s_smx_req_t internal_req; /* Internal translation of request */
87 s_smx_req_t executed_req; /* The executed request of the state */
88 int req_num; /* The request number (in the case of a
89 multi-request like waitany ) */
90 } s_mc_state_t, *mc_state_t;
92 extern xbt_fifo_t mc_stack;
94 mc_state_t MC_state_new(void);
95 void MC_state_delete(mc_state_t state);
96 void MC_state_interleave_process(mc_state_t state, smx_process_t process);
97 unsigned int MC_state_interleave_size(mc_state_t state);
98 int MC_state_process_is_done(mc_state_t state, smx_process_t process);
99 void MC_state_set_executed_request(mc_state_t state, smx_req_t req, int value);
100 smx_req_t MC_state_get_executed_request(mc_state_t state, int *value);
101 smx_req_t MC_state_get_internal_request(mc_state_t state);
102 smx_req_t MC_state_get_request(mc_state_t state, int *value);
104 /****************************** Statistics ************************************/
105 typedef struct mc_stats {
106 unsigned long state_size;
107 unsigned long visited_states;
108 unsigned long expanded_states;
109 unsigned long executed_transitions;
110 } s_mc_stats_t, *mc_stats_t;
112 extern mc_stats_t mc_stats;
114 void MC_print_statistics(mc_stats_t);
116 /********************************** MEMORY ******************************/
117 /* The possible memory modes for the modelchecker are standard and raw. */
118 /* Normally the system should operate in std, for switching to raw mode */
119 /* you must wrap the code between MC_SET_RAW_MODE and MC_UNSET_RAW_MODE */
121 extern void *std_heap;
122 extern void *raw_heap;
123 /* extern int raw_heap_fd; */ /* unused */
124 #define STD_HEAP_SIZE 20480000 /* Maximum size of the system's heap */
126 /* FIXME: Horrible hack! because the mmalloc library doesn't provide yet of */
127 /* an API to query about the status of a heap, we simply call mmstats and */
128 /* because I now how does structure looks like, then I redefine it here */
131 size_t bytes_total; /* Total size of the heap. */
132 size_t chunks_used; /* Chunks allocated by the user. */
133 size_t bytes_used; /* Byte total of user-allocated chunks. */
134 size_t chunks_free; /* Chunks in the free list. */
135 size_t bytes_free; /* Byte total of chunks in the free list. */
138 #define MC_SET_RAW_MEM mmalloc_set_current_heap(raw_heap)
139 #define MC_UNSET_RAW_MEM mmalloc_set_current_heap(std_heap)
141 /******************************* MEMORY MAPPINGS ***************************/
142 /* These functions and data structures implements a binary interface for */
143 /* the proc maps ascii interface */
145 /* Each field is defined as documented in proc's manual page */
146 typedef struct s_map_region {
148 void *start_addr; /* Start address of the map */
149 void *end_addr; /* End address of the map */
150 int prot; /* Memory protection */
151 int flags; /* Aditional memory flags */
152 void *offset; /* Offset in the file/whatever */
153 char dev_major; /* Major of the device */
154 char dev_minor; /* Minor of the device */
155 unsigned long inode; /* Inode in the device */
156 char *pathname; /* Path name of the mapped file */
160 typedef struct s_memory_map {
162 s_map_region *regions; /* Pointer to an array of regions */
163 int mapsize; /* Number of regions in the memory */
165 } s_memory_map_t, *memory_map_t;
167 memory_map_t get_memory_map(void);