X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/dcd90fb28d7fa6c69fed9ef7bab98a33db258adb..f556fde8fc7979c978d441445032f6fde4083e84:/src/mc/remote/AppSide.cpp diff --git a/src/mc/remote/AppSide.cpp b/src/mc/remote/AppSide.cpp index 9a72d04aab..2938475731 100644 --- a/src/mc/remote/AppSide.cpp +++ b/src/mc/remote/AppSide.cpp @@ -1,13 +1,25 @@ -/* Copyright (c) 2015-2020. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2015-2021. 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. */ #include "src/mc/remote/AppSide.hpp" #include "src/internal_config.h" +#include "src/kernel/EngineImpl.hpp" +#include "src/kernel/actor/ActorImpl.hpp" +#include "src/kernel/actor/SimcallObserver.hpp" +#include "src/mc/mc_base.hpp" +#include "src/mc/remote/RemoteProcess.hpp" +#if HAVE_SMPI +#include "src/smpi/include/private.hpp" +#endif +#include "xbt/coverage.h" +#include "xbt/str.h" +#include "xbt/xbt_modinter.h" /* mmalloc_preinit to get the default mmalloc arena address */ #include #include +#include // setvbuf #include #include #include @@ -15,9 +27,6 @@ #include #include -// We won't need those once the separation MCer/MCed is complete: -#include "src/mc/mc_smx.hpp" - XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_client, mc, "MC client logic"); namespace simgrid { @@ -36,16 +45,17 @@ AppSide* AppSide::initialize() _sg_do_model_check = 1; + setvbuf(stdout, nullptr, _IOLBF, 0); + // Fetch socket from MC_ENV_SOCKET_FD: const char* fd_env = std::getenv(MC_ENV_SOCKET_FD); - int fd = xbt_str_parse_int(fd_env, "Variable '" MC_ENV_SOCKET_FD "' should contain a number but contains '%s'"); + int fd = xbt_str_parse_int(fd_env, "Not a number in variable '" MC_ENV_SOCKET_FD "'"); XBT_DEBUG("Model-checked application found socket FD %i", fd); // Check the socket type/validity: int type; socklen_t socklen = sizeof(type); - if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &type, &socklen) != 0) - xbt_die("Could not check socket type"); + xbt_assert(getsockopt(fd, SOL_SOCKET, SO_TYPE, &type, &socklen) == 0, "Could not check socket type"); xbt_assert(type == SOCK_SEQPACKET, "Unexpected socket type %i", type); XBT_DEBUG("Model-checked application found expected socket type"); @@ -60,8 +70,13 @@ AppSide* AppSide::initialize() #else #error "no ptrace equivalent coded for this platform" #endif - if (errno != 0 || raise(SIGSTOP) != 0) - xbt_die("Could not wait for the model-checker (errno = %d: %s)", errno, strerror(errno)); + xbt_assert(errno == 0 && raise(SIGSTOP) == 0, "Could not wait for the model-checker (errno = %d: %s)", errno, + strerror(errno)); + + s_mc_message_initial_addresses_t message{MessageType::INITIAL_ADDRESSES, mmalloc_preinit(), + kernel::actor::get_maxpid_addr(), simix::simix_global_get_actors_addr(), + simix::simix_global_get_dead_actors_addr()}; + xbt_assert(instance_->channel_.send(message) == 0, "Could not send the initial message with addresses."); instance_->handle_messages(); return instance_.get(); @@ -69,38 +84,30 @@ AppSide* AppSide::initialize() void AppSide::handle_deadlock_check(const s_mc_message_t*) const { - bool deadlock = false; - if (not simix_global->process_list.empty()) { - deadlock = true; - for (auto const& kv : simix_global->process_list) - if (simgrid::mc::actor_is_enabled(kv.second)) { - deadlock = false; - break; - } - } + const auto& actor_list = kernel::EngineImpl::get_instance()->get_actor_list(); + bool deadlock = not actor_list.empty() && std::none_of(begin(actor_list), end(actor_list), [](const auto& kv) { + return mc::actor_is_enabled(kv.second); + }); // Send result: - s_mc_message_int_t answer{MC_MESSAGE_DEADLOCK_CHECK_REPLY, deadlock}; + s_mc_message_int_t answer{MessageType::DEADLOCK_CHECK_REPLY, deadlock}; xbt_assert(channel_.send(answer) == 0, "Could not send response"); } -void AppSide::handle_continue(const s_mc_message_t*) const -{ - /* Nothing to do */ -} -void AppSide::handle_simcall(const s_mc_message_simcall_handle_t* message) const +void AppSide::handle_simcall_execute(const s_mc_message_simcall_handle_t* message) const { - smx_actor_t process = SIMIX_process_from_PID(message->pid); - xbt_assert(process != nullptr, "Invalid pid %lu", message->pid); - process->simcall_handle(message->value); - if (channel_.send(MC_MESSAGE_WAITING)) - xbt_die("Could not send MESSAGE_WAITING to model-checker"); + kernel::actor::ActorImpl* actor = kernel::actor::ActorImpl::by_pid(message->aid_); + xbt_assert(actor != nullptr, "Invalid pid %ld", message->aid_); + if (actor->simcall_.observer_ != nullptr) + actor->observer_stack_.push_back(actor->simcall_.observer_->clone()); + actor->simcall_handle(message->times_considered_); + xbt_assert(channel_.send(MessageType::WAITING) == 0, "Could not send MESSAGE_WAITING to model-checker"); } void AppSide::handle_actor_enabled(const s_mc_message_actor_enabled_t* msg) const { - bool res = simgrid::mc::actor_is_enabled(SIMIX_process_from_PID(msg->aid)); - s_mc_message_int_t answer{MC_MESSAGE_ACTOR_ENABLED_REPLY, res}; - channel_.send(answer); + bool res = mc::actor_is_enabled(kernel::actor::ActorImpl::by_pid(msg->aid)); + s_mc_message_int_t answer{MessageType::ACTOR_ENABLED_REPLY, res}; + xbt_assert(channel_.send(answer) == 0, "Could not send ACTOR_ENABLED_REPLY"); } #define assert_msg_size(_name_, _type_) \ @@ -109,7 +116,7 @@ void AppSide::handle_actor_enabled(const s_mc_message_actor_enabled_t* msg) cons void AppSide::handle_messages() const { - while (true) { + while (true) { // Until we get a CONTINUE message XBT_DEBUG("Waiting messages from model-checker"); std::array message_buffer; @@ -119,28 +126,93 @@ void AppSide::handle_messages() const const s_mc_message_t* message = (s_mc_message_t*)message_buffer.data(); switch (message->type) { - case MC_MESSAGE_DEADLOCK_CHECK: + case MessageType::DEADLOCK_CHECK: assert_msg_size("DEADLOCK_CHECK", s_mc_message_t); handle_deadlock_check(message); break; - case MC_MESSAGE_CONTINUE: + case MessageType::CONTINUE: assert_msg_size("MESSAGE_CONTINUE", s_mc_message_t); - handle_continue(message); return; - case MC_MESSAGE_SIMCALL_HANDLE: + case MessageType::SIMCALL_HANDLE: assert_msg_size("SIMCALL_HANDLE", s_mc_message_simcall_handle_t); - handle_simcall((s_mc_message_simcall_handle_t*)message_buffer.data()); + handle_simcall_execute((s_mc_message_simcall_handle_t*)message_buffer.data()); break; - case MC_MESSAGE_ACTOR_ENABLED: + case MessageType::SIMCALL_IS_VISIBLE: { + assert_msg_size("SIMCALL_IS_VISIBLE", s_mc_message_simcall_is_visible_t); + auto msg_simcall = (s_mc_message_simcall_is_visible_t*)message_buffer.data(); + const kernel::actor::ActorImpl* actor = kernel::actor::ActorImpl::by_pid(msg_simcall->aid); + xbt_assert(actor != nullptr, "Invalid pid %ld", msg_simcall->aid); + xbt_assert(actor->simcall_.observer_, "The transition of %s has no observer", actor->get_cname()); + bool value = actor->simcall_.observer_->is_visible(); + + // Send result: + s_mc_message_simcall_is_visible_answer_t answer{MessageType::SIMCALL_IS_VISIBLE_ANSWER, value}; + xbt_assert(channel_.send(answer) == 0, "Could not send response"); + break; + } + + case MessageType::SIMCALL_TO_STRING: { + assert_msg_size("SIMCALL_TO_STRING", s_mc_message_simcall_to_string_t); + auto msg_simcall = (s_mc_message_simcall_to_string_t*)message_buffer.data(); + const kernel::actor::ActorImpl* actor = kernel::actor::ActorImpl::by_pid(msg_simcall->aid); + xbt_assert(actor != nullptr, "Invalid pid %ld", msg_simcall->aid); + xbt_assert(actor->simcall_.observer_, "The transition of %s has no observer", actor->get_cname()); + std::string value = actor->simcall_.observer_->to_string(msg_simcall->time_considered); + + // Send result: + s_mc_message_simcall_to_string_answer_t answer{MessageType::SIMCALL_TO_STRING_ANSWER, {0}}; + value.copy(answer.value, (sizeof answer.value) - 1); // last byte was set to '\0' by initialization above + xbt_assert(channel_.send(answer) == 0, "Could not send response"); + break; + } + + case MessageType::SIMCALL_DOT_LABEL: { + assert_msg_size("SIMCALL_DOT_LABEL", s_mc_message_simcall_to_string_t); + auto msg_simcall = (s_mc_message_simcall_to_string_t*)message_buffer.data(); + const kernel::actor::ActorImpl* actor = kernel::actor::ActorImpl::by_pid(msg_simcall->aid); + xbt_assert(actor != nullptr, "Invalid pid %ld", msg_simcall->aid); + xbt_assert(actor->simcall_.observer_, "The transition of %s has no observer", actor->get_cname()); + std::string value = actor->simcall_.observer_->dot_label(); + + // Send result: + s_mc_message_simcall_to_string_answer_t answer{MessageType::SIMCALL_TO_STRING_ANSWER, {0}}; + value.copy(answer.value, (sizeof answer.value) - 1); // last byte was set to '\0' by initialization above + xbt_assert(channel_.send(answer) == 0, "Could not send response"); + break; + } + + case MessageType::ACTOR_ENABLED: assert_msg_size("ACTOR_ENABLED", s_mc_message_actor_enabled_t); handle_actor_enabled((s_mc_message_actor_enabled_t*)message_buffer.data()); break; + case MessageType::FINALIZE: { + assert_msg_size("FINALIZE", s_mc_message_int_t); + bool terminate_asap = ((s_mc_message_int_t*)message_buffer.data())->value; + XBT_DEBUG("Finalize (terminate = %d)", (int)terminate_asap); + if (not terminate_asap) { + if (XBT_LOG_ISENABLED(mc_client, xbt_log_priority_debug)) + kernel::EngineImpl::get_instance()->display_all_actor_status(); +#if HAVE_SMPI + XBT_DEBUG("Smpi_enabled: %d", (int)smpi_enabled()); + if (smpi_enabled()) + SMPI_finalize(); +#endif + } + coverage_checkpoint(); + xbt_assert(channel_.send(MessageType::DEADLOCK_CHECK_REPLY) == 0, // DEADLOCK_CHECK_REPLY, really? + "Could not answer to FINALIZE"); + std::fflush(stdout); + if (terminate_asap) + ::_Exit(0); + break; + } + default: - xbt_die("Received unexpected message %s (%i)", MC_message_type_name(message->type), message->type); + xbt_die("Received unexpected message %s (%i)", to_c_str(message->type), static_cast(message->type)); break; } } @@ -148,28 +220,27 @@ void AppSide::handle_messages() const void AppSide::main_loop() const { + coverage_checkpoint(); while (true) { - simgrid::mc::wait_for_requests(); - xbt_assert(channel_.send(MC_MESSAGE_WAITING) == 0, "Could not send WAITING message to model-checker"); + simgrid::mc::execute_actors(); + xbt_assert(channel_.send(MessageType::WAITING) == 0, "Could not send WAITING message to model-checker"); this->handle_messages(); } } void AppSide::report_assertion_failure() const { - if (channel_.send(MC_MESSAGE_ASSERTION_FAILED)) - xbt_die("Could not send assertion to model-checker"); + xbt_assert(channel_.send(MessageType::ASSERTION_FAILED) == 0, "Could not send assertion to model-checker"); this->handle_messages(); } void AppSide::ignore_memory(void* addr, std::size_t size) const { s_mc_message_ignore_memory_t message; - message.type = MC_MESSAGE_IGNORE_MEMORY; + message.type = MessageType::IGNORE_MEMORY; message.addr = (std::uintptr_t)addr; message.size = size; - if (channel_.send(message)) - xbt_die("Could not send IGNORE_MEMORY message to model-checker"); + xbt_assert(channel_.send(message) == 0, "Could not send IGNORE_MEMORY message to model-checker"); } void AppSide::ignore_heap(void* address, std::size_t size) const @@ -177,7 +248,7 @@ void AppSide::ignore_heap(void* address, std::size_t size) const const s_xbt_mheap_t* heap = mmalloc_get_current_heap(); s_mc_message_ignore_heap_t message; - message.type = MC_MESSAGE_IGNORE_HEAP; + message.type = MessageType::IGNORE_HEAP; message.address = address; message.size = size; message.block = ((char*)address - (char*)heap->heapbase) / BLOCKSIZE + 1; @@ -189,31 +260,27 @@ void AppSide::ignore_heap(void* address, std::size_t size) const heap->heapinfo[message.block].busy_frag.ignore[message.fragment]++; } - if (channel_.send(message)) - xbt_die("Could not send ignored region to MCer"); + xbt_assert(channel_.send(message) == 0, "Could not send ignored region to MCer"); } void AppSide::unignore_heap(void* address, std::size_t size) const { s_mc_message_ignore_memory_t message; - message.type = MC_MESSAGE_UNIGNORE_HEAP; + message.type = MessageType::UNIGNORE_HEAP; message.addr = (std::uintptr_t)address; message.size = size; - if (channel_.send(message)) - xbt_die("Could not send IGNORE_HEAP message to model-checker"); + xbt_assert(channel_.send(message) == 0, "Could not send IGNORE_HEAP message to model-checker"); } void AppSide::declare_symbol(const char* name, int* value) const { s_mc_message_register_symbol_t message; - message.type = MC_MESSAGE_REGISTER_SYMBOL; - if (strlen(name) + 1 > sizeof(message.name)) - xbt_die("Symbol is too long"); - strncpy(message.name, name, sizeof(message.name)); + message.type = MessageType::REGISTER_SYMBOL; + xbt_assert(strlen(name) + 1 <= message.name.size(), "Symbol is too long"); + strncpy(message.name.data(), name, message.name.size()); message.callback = nullptr; message.data = value; - if (channel_.send(message)) - xbt_die("Could send REGISTER_SYMBOL message to model-checker"); + xbt_assert(channel_.send(message) == 0, "Could send REGISTER_SYMBOL message to model-checker"); } void AppSide::declare_stack(void* stack, size_t size, ucontext_t* context) const @@ -228,10 +295,9 @@ void AppSide::declare_stack(void* stack, size_t size, ucontext_t* context) const region.block = ((char*)stack - (char*)heap->heapbase) / BLOCKSIZE + 1; s_mc_message_stack_region_t message; - message.type = MC_MESSAGE_STACK_REGION; + message.type = MessageType::STACK_REGION; message.stack_region = region; - if (channel_.send(message)) - xbt_die("Could not send STACK_REGION to model-checker"); + xbt_assert(channel_.send(message) == 0, "Could not send STACK_REGION to model-checker"); } } // namespace mc } // namespace simgrid