X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/199b029b33b5b9fbe1eacb50828914f3b38bde2f..c5ad8ca1a68bbaa9152471c8d0eeb99d762f0d86:/src/mc/private.h diff --git a/src/mc/private.h b/src/mc/private.h index 56a10029da..3c7006030e 100644 --- a/src/mc/private.h +++ b/src/mc/private.h @@ -1,5 +1,3 @@ -/* $Id: private.h 5497 2008-05-26 12:19:15Z cristianrosa $ */ - /* Copyright (c) 2007 Arnaud Legrand, Bruno Donnassolo. All rights reserved. */ @@ -10,145 +8,282 @@ #define MC_PRIVATE_H #include +#include #include "mc/mc.h" #include "mc/datatypes.h" #include "xbt/fifo.h" -#include "xbt/setset.h" #include "xbt/config.h" #include "xbt/function_types.h" -#include "mmalloc.h" +#include "xbt/mmalloc.h" #include "../simix/private.h" +#include "xbt/automaton.h" +#include "xbt/hash.h" +#include "msg/msg.h" +#include "msg/datatypes.h" +#include "simix/datatypes.h" /****************************** Snapshots ***********************************/ -/*typedef struct s_mc_process_checkpoint { - xbt_checkpoint_t machine_state; Here we save the cpu + stack -} s_mc_process_checkpoint_t, *mc_process_checkpoint_t;*/ - -typedef struct s_mc_snapshot { - size_t heap_size; - size_t data_size; - void* data; - void* heap; +typedef struct s_mc_mem_region{ + int type; + void *start_addr; + void *data; + size_t size; +} s_mc_mem_region_t, *mc_mem_region_t; +typedef struct s_mc_snapshot{ + unsigned int num_reg; + mc_mem_region_t *regions; } s_mc_snapshot_t, *mc_snapshot_t; -extern mc_snapshot_t initial_snapshot; - -size_t MC_save_heap(void **); -void MC_restore_heap(void *, size_t); - -size_t MC_save_dataseg(void **); -void MC_restore_dataseg(void *, size_t); +extern char *prog_name; void MC_take_snapshot(mc_snapshot_t); +void MC_take_snapshot_liveness(mc_snapshot_t s); +void MC_take_snapshot_to_restore_liveness(mc_snapshot_t s); void MC_restore_snapshot(mc_snapshot_t); void MC_free_snapshot(mc_snapshot_t); /********************************* MC Global **********************************/ +extern double *mc_time; /* Bound of the MC depth-first search algorithm */ #define MAX_DEPTH 1000 +#define MAX_DEPTH_LIVENESS 500 -extern char mc_replay_mode; - -void MC_show_stack(xbt_fifo_t stack); -void MC_dump_stack(xbt_fifo_t stack); -void MC_execute_surf_actions(void); +int MC_deadlock_check(void); void MC_replay(xbt_fifo_t stack); -void MC_schedule_enabled_processes(void); -void MC_dfs_init(void); -void MC_dpor_init(void); -void MC_dfs(void); -void MC_dpor(void); +void MC_replay_liveness(xbt_fifo_t stack, int all_stack); +void MC_wait_for_requests(void); +void MC_get_enabled_processes(); +void MC_show_deadlock(smx_simcall_t req); +void MC_show_deadlock_stateful(smx_simcall_t req); +void MC_show_stack_safety_stateless(xbt_fifo_t stack); +void MC_dump_stack_safety_stateless(xbt_fifo_t stack); +void MC_show_stack_safety_stateful(xbt_fifo_t stack); +void MC_dump_stack_safety_stateful(xbt_fifo_t stack); + +/********************************* Requests ***********************************/ +int MC_request_depend(smx_simcall_t req1, smx_simcall_t req2); +char* MC_request_to_string(smx_simcall_t req, int value); +unsigned int MC_request_testany_fail(smx_simcall_t req); +/*int MC_waitany_is_enabled_by_comm(smx_req_t req, unsigned int comm);*/ +int MC_request_is_visible(smx_simcall_t req); +int MC_request_is_enabled(smx_simcall_t req); +int MC_request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx); +int MC_process_is_enabled(smx_process_t process); -/******************************* Transitions **********************************/ -typedef struct s_mc_transition{ - XBT_SETSET_HEADERS; - char* name; - unsigned int refcount; - mc_trans_type_t type; - smx_process_t process; - smx_rdv_t rdv; - smx_comm_t comm; /* reference to the simix network communication */ -} s_mc_transition_t; - -void MC_transition_delete(mc_transition_t); -int MC_transition_depend(mc_transition_t, mc_transition_t); /******************************** States **************************************/ -typedef struct mc_state{ - xbt_setset_set_t transitions; - xbt_setset_set_t enabled_transitions; - xbt_setset_set_t interleave; - xbt_setset_set_t done; - mc_transition_t executed_transition; +/* Possible exploration status of a process in a state */ +typedef enum { + MC_NOT_INTERLEAVE=0, /* Do not interleave (do not execute) */ + MC_INTERLEAVE, /* Interleave the process (one or more request) */ + MC_DONE /* Already interleaved */ +} e_mc_process_state_t; + +/* On every state, each process has an entry of the following type */ +typedef struct mc_procstate{ + e_mc_process_state_t state; /* Exploration control information */ + unsigned int interleave_count; /* Number of times that the process was + interleaved */ +} s_mc_procstate_t, *mc_procstate_t; + +/* An exploration state is composed of: */ +typedef struct mc_state { + unsigned long max_pid; /* Maximum pid at state's creation time */ + mc_procstate_t proc_status; /* State's exploration status by process */ + s_smx_action_t internal_comm; /* To be referenced by the internal_req */ + s_smx_simcall_t internal_req; /* Internal translation of request */ + s_smx_simcall_t executed_req; /* The executed request of the state */ + int req_num; /* The request number (in the case of a + multi-request like waitany ) */ } s_mc_state_t, *mc_state_t; -extern xbt_fifo_t mc_stack; -extern xbt_setset_t mc_setset; +extern xbt_fifo_t mc_stack_safety_stateless; mc_state_t MC_state_new(void); -void MC_state_delete(mc_state_t); +void MC_state_delete(mc_state_t state); +void MC_state_interleave_process(mc_state_t state, smx_process_t process); +unsigned int MC_state_interleave_size(mc_state_t state); +int MC_state_process_is_done(mc_state_t state, smx_process_t process); +void MC_state_set_executed_request(mc_state_t state, smx_simcall_t req, int value); +smx_simcall_t MC_state_get_executed_request(mc_state_t state, int *value); +smx_simcall_t MC_state_get_internal_request(mc_state_t state); +smx_simcall_t MC_state_get_request(mc_state_t state, int *value); /****************************** Statistics ************************************/ -typedef struct mc_stats{ +typedef struct mc_stats { unsigned long state_size; unsigned long visited_states; unsigned long expanded_states; unsigned long executed_transitions; -}s_mc_stats_t, *mc_stats_t; +} s_mc_stats_t, *mc_stats_t; + +typedef struct mc_stats_pair { + //unsigned long pair_size; + unsigned long visited_pairs; + unsigned long expanded_pairs; + unsigned long executed_transitions; +} s_mc_stats_pair_t, *mc_stats_pair_t; extern mc_stats_t mc_stats; +extern mc_stats_pair_t mc_stats_pair; void MC_print_statistics(mc_stats_t); +void MC_print_statistics_pairs(mc_stats_pair_t); /********************************** MEMORY ******************************/ /* The possible memory modes for the modelchecker are standard and raw. */ /* Normally the system should operate in std, for switching to raw mode */ /* you must wrap the code between MC_SET_RAW_MODE and MC_UNSET_RAW_MODE */ -extern void *actual_heap; extern void *std_heap; extern void *raw_heap; -extern void *libsimgrid_data_addr_start; -extern size_t libsimgrid_data_size; +/* extern int raw_heap_fd; */ /* unused */ +#define STD_HEAP_SIZE 20480000 /* Maximum size of the system's heap */ + +/* FIXME: Horrible hack! because the mmalloc library doesn't provide yet of */ +/* an API to query about the status of a heap, we simply call mmstats and */ +/* because I now how does structure looks like, then I redefine it here */ -#define MC_SET_RAW_MEM actual_heap = raw_heap -#define MC_UNSET_RAW_MEM actual_heap = std_heap +struct mstats { + size_t bytes_total; /* Total size of the heap. */ + size_t chunks_used; /* Chunks allocated by the user. */ + size_t bytes_used; /* Byte total of user-allocated chunks. */ + size_t chunks_free; /* Chunks in the free list. */ + size_t bytes_free; /* Byte total of chunks in the free list. */ +}; + +#define MC_SET_RAW_MEM mmalloc_set_current_heap(raw_heap) +#define MC_UNSET_RAW_MEM mmalloc_set_current_heap(std_heap) /******************************* MEMORY MAPPINGS ***************************/ /* These functions and data structures implements a binary interface for */ /* the proc maps ascii interface */ -#define MAP_READ 1 << 0 -#define MAP_WRITE 1 << 1 -#define MAP_EXEC 1 << 2 -#define MAP_SHARED 1 << 3 -#define MAP_PRIV 1 << 4 - /* Each field is defined as documented in proc's manual page */ typedef struct s_map_region { - void *start_addr; /* Start address of the map */ - void *end_addr; /* End address of the map */ - int perms; /* Set of permissions */ - void *offset; /* Offset in the file/whatever */ - char dev_major; /* Major of the device */ - char dev_minor; /* Minor of the device */ - unsigned long inode; /* Inode in the device */ - char *pathname; /* Path name of the mapped file */ + void *start_addr; /* Start address of the map */ + void *end_addr; /* End address of the map */ + int prot; /* Memory protection */ + int flags; /* Aditional memory flags */ + void *offset; /* Offset in the file/whatever */ + char dev_major; /* Major of the device */ + char dev_minor; /* Minor of the device */ + unsigned long inode; /* Inode in the device */ + char *pathname; /* Path name of the mapped file */ } s_map_region; typedef struct s_memory_map { - s_map_region *regions; /* Pointer to an array of regions */ - int mapsize; /* Number of regions in the memory */ + s_map_region *regions; /* Pointer to an array of regions */ + int mapsize; /* Number of regions in the memory */ } s_memory_map_t, *memory_map_t; memory_map_t get_memory_map(void); +/********************************** DPOR for safety (stateless) **************************************/ +void MC_dpor_init(void); +void MC_dpor(void); +void MC_dpor_exit(void); + +/***** DPOR for safety (stateful) **** */ + +typedef struct s_mc_state_with_snapshot{ + mc_snapshot_t system_state; + mc_state_t graph_state; +}s_mc_state_ws_t, *mc_state_ws_t; + +extern xbt_fifo_t mc_stack_safety_stateful; + +void MC_init_stateful(void); +void MC_modelcheck_stateful(void); +mc_state_ws_t new_state_ws(mc_snapshot_t s, mc_state_t gs); +void MC_dpor_stateful_init(void); +void MC_dpor_stateful(void); +void MC_exit_stateful(void); + + +/********************************** Double-DFS for liveness property**************************************/ + +extern mc_snapshot_t initial_snapshot_liveness; +extern xbt_automaton_t automaton; + +typedef struct s_mc_pair{ + mc_snapshot_t system_state; + mc_state_t graph_state; + xbt_state_t automaton_state; +}s_mc_pair_t, *mc_pair_t; + +typedef struct s_mc_pair_reached{ + xbt_state_t automaton_state; + xbt_dynar_t prop_ato; + mc_snapshot_t system_state; + //xbt_dict_t rdv_points; +}s_mc_pair_reached_t, *mc_pair_reached_t; + +typedef struct s_mc_pair_visited{ + xbt_state_t automaton_state; + xbt_dynar_t prop_ato; + mc_snapshot_t system_state; + int search_cycle; +}s_mc_pair_visited_t, *mc_pair_visited_t; + +typedef struct s_mc_pair_visited_hash{ + xbt_state_t automaton_state; + xbt_dynar_t prop_ato; + unsigned int *hash_regions; + int search_cycle; +}s_mc_pair_visited_hash_t, *mc_pair_visited_hash_t; + +typedef struct s_mc_pair_reached_hash{ + xbt_state_t automaton_state; + xbt_dynar_t prop_ato; + unsigned int *hash_regions; +}s_mc_pair_reached_hash_t, *mc_pair_reached_hash_t; + + + +int MC_automaton_evaluate_label(xbt_exp_label_t l); +mc_pair_t new_pair(mc_snapshot_t sn, mc_state_t sg, xbt_state_t st); + +int reached(xbt_state_t st); +void set_pair_reached(xbt_state_t st); +int reached_hash(xbt_state_t st); +void set_pair_reached_hash(xbt_state_t st); +int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2); +void MC_pair_delete(mc_pair_t pair); +void MC_exit_liveness(void); +mc_state_t MC_state_pair_new(void); +int visited(xbt_state_t st, int search_cycle); +void set_pair_visited(xbt_state_t st, int search_cycle); +int visited_hash(xbt_state_t st, int search_cycle); +void set_pair_visited_hash(xbt_state_t st, int search_cycle); +unsigned int hash_region(char *str, int str_len); +int rdv_points_compare(xbt_dict_t d1, xbt_dict_t d2); + + +/* **** Double-DFS stateless **** */ + +typedef struct s_mc_pair_stateless{ + mc_state_t graph_state; + xbt_state_t automaton_state; + int requests; +}s_mc_pair_stateless_t, *mc_pair_stateless_t; + +extern xbt_fifo_t mc_stack_liveness; + +mc_pair_stateless_t new_pair_stateless(mc_state_t sg, xbt_state_t st, int r); +void MC_ddfs_init(void); +void MC_ddfs(int search_cycle); +void MC_show_stack_liveness(xbt_fifo_t stack); +void MC_dump_stack_liveness(xbt_fifo_t stack); +void MC_pair_stateless_delete(mc_pair_stateless_t pair); + + #endif