1 /* Copyright (c) 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_SMX_H
8 #define SIMGRID_MC_SMX_H
13 #include <simgrid/simix.h>
15 #include "smpi/private.h"
17 #include "mc_process.h"
18 #include "mc_protocol.h"
21 * @brief (Cross-process, MCer/MCed) Access to SMX structures
23 * We copy some C data structure from the MCed process in the MCer process.
24 * This is implemented by:
26 * - `model_checker->process.smx_process_infos`
27 * (copy of `simix_global->process_list`);
29 * - `model_checker->process.smx_old_process_infos`
30 * (copy of `simix_global->process_to_destroy`);
32 * - `model_checker->hostnames`.
34 * The process lists are currently refreshed each time MCed code is executed.
35 * We don't try to give a persistent MCer address for a given MCed process.
36 * For this reason, a MCer simgrid::mc::Process* is currently not reusable after
42 struct s_mc_smx_process_info {
43 /** MCed address of the process */
45 /** (Flat) Copy of the process data structure */
46 struct s_smx_process copy;
47 /** Hostname (owned by `mc_modelchecker->hostnames`) */
52 XBT_INTERNAL xbt_dynar_t MC_smx_process_info_list_new(void);
54 XBT_INTERNAL void MC_process_smx_refresh(simgrid::mc::Process* process);
56 /** Get the issuer of a simcall (`req->issuer`)
58 * In split-process mode, it does the black magic necessary to get an address
59 * of a (shallow) copy of the data structure the issuer SIMIX process in the local
62 * @param process the MCed process
63 * @param req the simcall (copied in the local process)
65 XBT_INTERNAL smx_process_t MC_smx_simcall_get_issuer(smx_simcall_t req);
67 XBT_INTERNAL const char* MC_smx_process_get_name(smx_process_t p);
68 XBT_INTERNAL const char* MC_smx_process_get_host_name(smx_process_t p);
70 #define MC_EACH_SIMIX_PROCESS(process, code) \
71 if (mc_mode == MC_MODE_CLIENT) { \
72 xbt_swag_foreach(process, simix_global->process_list) { \
76 MC_process_smx_refresh(&mc_model_checker->process()); \
77 unsigned int _smx_process_index; \
78 mc_smx_process_info_t _smx_process_info; \
79 xbt_dynar_foreach_ptr(mc_model_checker->process().smx_process_infos, _smx_process_index, _smx_process_info) { \
80 smx_process_t process = &_smx_process_info->copy; \
85 /** Execute a given simcall */
86 XBT_INTERNAL void MC_simcall_handle(smx_simcall_t req, int value);
88 XBT_INTERNAL int MC_smpi_process_count(void);
91 /* ***** Resolve (local/MCer structure from remote/MCed addresses) ***** */
93 /** Get a local copy of the process from the process remote address */
94 XBT_INTERNAL smx_process_t MC_smx_resolve_process(smx_process_t process_remote_address);
96 /** Get the process info structure from the process remote address */
97 XBT_INTERNAL mc_smx_process_info_t MC_smx_resolve_process_info(smx_process_t process_remote_address);
99 XBT_INTERNAL unsigned long MC_smx_get_maxpid(void);