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