-/* Copyright (c) 2015-2021. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2015-2023. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
// ***** Environment variables for passing context to the model-checked process
-/** Environment variable name used to pass the communication socket.
- *
- * It is set by `simgrid-mc` to enable MC support in the children processes
- */
-#define MC_ENV_SOCKET_FD "SIMGRID_MC_SOCKET_FD"
-
#ifdef __cplusplus
-#include "mc/datatypes.h"
+#include "src/kernel/actor/SimcallObserver.hpp"
+
#include "simgrid/forward.h" // aid_t
+#include "src/mc/datatypes.h"
+#include "src/xbt/mmalloc/mmalloc.h"
+#include <xbt/utility.hpp>
+
#include <array>
#include <cstdint>
-#include <xbt/utility.hpp>
+#include <sys/un.h>
// ***** Messages
-namespace simgrid {
-namespace mc {
-
-XBT_DECLARE_ENUM_CLASS(MessageType, NONE, CONTINUE, IGNORE_HEAP, UNIGNORE_HEAP, IGNORE_MEMORY, STACK_REGION,
- REGISTER_SYMBOL, DEADLOCK_CHECK, DEADLOCK_CHECK_REPLY, WAITING, SIMCALL_HANDLE,
- SIMCALL_IS_VISIBLE, SIMCALL_IS_VISIBLE_ANSWER, SIMCALL_TO_STRING, SIMCALL_TO_STRING_ANSWER,
- SIMCALL_DOT_LABEL, ASSERTION_FAILED, ACTOR_ENABLED, ACTOR_ENABLED_REPLY);
+namespace simgrid::mc {
-} // namespace mc
-} // namespace simgrid
+XBT_DECLARE_ENUM_CLASS(MessageType, NONE, NEED_MEMINFO, NEED_MEMINFO_REPLY, FORK, FORK_REPLY, WAIT_CHILD,
+ WAIT_CHILD_REPLY, CONTINUE, IGNORE_HEAP, UNIGNORE_HEAP, IGNORE_MEMORY, UNIGNORE_MEMORY,
+ STACK_REGION, REGISTER_SYMBOL, DEADLOCK_CHECK, DEADLOCK_CHECK_REPLY, WAITING, SIMCALL_EXECUTE,
+ SIMCALL_EXECUTE_REPLY, ASSERTION_FAILED, ACTORS_STATUS, ACTORS_STATUS_REPLY_COUNT,
+ ACTORS_STATUS_REPLY_SIMCALL, ACTORS_STATUS_REPLY_TRANSITION, ACTORS_MAXPID, ACTORS_MAXPID_REPLY,
+ FINALIZE, FINALIZE_REPLY);
+} // namespace simgrid::mc
-constexpr unsigned MC_MESSAGE_LENGTH = 512;
+constexpr unsigned MC_MESSAGE_LENGTH = 512;
+constexpr unsigned MC_SOCKET_NAME_LEN = sizeof(sockaddr_un::sun_path);
+constexpr unsigned SIMCALL_SERIALIZATION_BUFFER_SIZE = 2048;
/** Basic structure for a MC message
*
- * The current version of the client/server protocol sends C structures over `AF_LOCAL`
+ * The current version of the client/server protocol sends C structures over `AF_UNIX`
* `SOCK_SEQPACKET` sockets. This means that the protocol is ABI/architecture specific:
* we currently can't model-check a x86 process from a x86_64 process.
*
};
/* Server -> client */
-struct s_mc_message_simcall_handle_t {
+struct s_mc_message_need_meminfo_reply_t {
simgrid::mc::MessageType type;
- unsigned long pid_;
- int times_considered_;
+ xbt_mheap_t mmalloc_default_mdp;
};
-struct s_mc_message_restore_t {
+struct s_mc_message_fork_t {
simgrid::mc::MessageType type;
- int index;
+ std::array<char, MC_SOCKET_NAME_LEN> socket_name;
};
-struct s_mc_message_actor_enabled_t {
+struct s_mc_message_simcall_execute_t {
simgrid::mc::MessageType type;
- aid_t aid; // actor ID
+ aid_t aid_;
+ int times_considered_;
};
-
-/* RPC */
-struct s_mc_message_simcall_is_visible_t { // MessageType::SIMCALL_IS_VISIBLE
+struct s_mc_message_simcall_execute_answer_t {
simgrid::mc::MessageType type;
- int aid;
+ std::array<char, SIMCALL_SERIALIZATION_BUFFER_SIZE> buffer;
};
-struct s_mc_message_simcall_is_visible_answer_t { // MessageType::SIMCALL_IS_VISIBLE_ANSWER
+
+struct s_mc_message_restore_t {
simgrid::mc::MessageType type;
- bool value;
+ int index;
};
-struct s_mc_message_simcall_to_string_t { // MessageType::SIMCALL_TO_STRING or MessageType::SIMCALL_DOT_LABEL
+struct s_mc_message_actors_status_answer_t {
+ simgrid::mc::MessageType type;
+ int count;
+};
+struct s_mc_message_actors_status_one_t { // an array of `s_mc_message_actors_status_one_t[count]` is sent right after
+ // after a `s_mc_message_actors_status_answer_t`
simgrid::mc::MessageType type;
- int aid;
- int time_considered;
+ aid_t aid;
+ bool enabled;
+ int max_considered;
};
-struct s_mc_message_simcall_to_string_answer_t { // MessageType::SIMCALL_TO_STRING_ANSWER
+
+// Answer from an actor to the question "what are you about to run?"
+struct s_mc_message_simcall_probe_one_t { // a series of `s_mc_message_simcall_probe_one_t`
+ // is sent right after `s_mc_message_actors_status_one_t[]`
simgrid::mc::MessageType type;
- char value[1024];
+ std::array<char, SIMCALL_SERIALIZATION_BUFFER_SIZE> buffer;
};
#endif // __cplusplus
