src/simix/libsmx.cpp

   1 /* libsmx.c - public interface to simix                                       */
   2 /* --------                                                                   */
   3 /* These functions are the only ones that are visible from the higher levels  */
   4 /* (most of them simply add some documentation to the generated simcall body) */
   5 /*                                                                            */
   6 /* This is somehow the "libc" of SimGrid                                      */
   7
   8 /* Copyright (c) 2010-2022. The SimGrid Team. All rights reserved.          */
   9
  10 /* This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the license (GNU LGPL) which comes with this package. */
  12
  13 #include "mc/mc.h"
  14 #include "src/kernel/activity/CommImpl.hpp"
  15 #include "src/kernel/activity/ConditionVariableImpl.hpp"
  16 #include "src/kernel/activity/MutexImpl.hpp"
  17 #include "src/kernel/activity/SemaphoreImpl.hpp"
  18 #include "src/kernel/actor/SimcallObserver.hpp"
  19 #include "src/mc/mc_replay.hpp"
  20 #include "xbt/random.hpp"
  21
  22 #include "popping_bodies.cpp"
  23
  24 #include <boost/core/demangle.hpp>
  25 #include <string>
  26 #include <typeinfo>
  27
  28 /**
  29  * @ingroup simix_comm_management
  30  */
  31 void simcall_comm_send(smx_actor_t sender, smx_mailbox_t mbox, double task_size, double rate, void* src_buff,
  32                        size_t src_buff_size, bool (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
  33                        void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t), void* data,
  34                        double timeout)
  35 {
  36   /* checking for infinite values */
  37   xbt_assert(std::isfinite(task_size), "task_size is not finite!");
  38   xbt_assert(std::isfinite(rate), "rate is not finite!");
  39   xbt_assert(std::isfinite(timeout), "timeout is not finite!");
  40
  41   xbt_assert(mbox, "No rendez-vous point defined for send");
  42
  43   if (MC_is_active() || MC_record_replay_is_active()) {
  44     /* the model-checker wants two separate simcalls */
  45     simgrid::kernel::activity::ActivityImplPtr comm =
  46         nullptr; /* MC needs the comm to be set to nullptr during the simcall */
  47     comm = simcall_comm_isend(sender, mbox, task_size, rate, src_buff, src_buff_size, match_fun, nullptr, copy_data_fun,
  48                               data, false);
  49     simcall_comm_wait(comm.get(), timeout);
  50     comm = nullptr;
  51   }
  52   else {
  53     simcall_BODY_comm_send(sender, mbox, task_size, rate, static_cast<unsigned char*>(src_buff), src_buff_size,
  54                            match_fun, copy_data_fun, data, timeout);
  55   }
  56 }
  57
  58 /**
  59  * @ingroup simix_comm_management
  60  */
  61 simgrid::kernel::activity::ActivityImplPtr
  62 simcall_comm_isend(smx_actor_t sender, smx_mailbox_t mbox, double task_size, double rate, void* src_buff,
  63                    size_t src_buff_size, bool (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
  64                    void (*clean_fun)(void*), void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
  65                    void* data, bool detached)
  66 {
  67   /* checking for infinite values */
  68   xbt_assert(std::isfinite(task_size), "task_size is not finite!");
  69   xbt_assert(std::isfinite(rate), "rate is not finite!");
  70
  71   xbt_assert(mbox, "No rendez-vous point defined for isend");
  72
  73   return simcall_BODY_comm_isend(sender, mbox, task_size, rate, static_cast<unsigned char*>(src_buff), src_buff_size,
  74                                  match_fun, clean_fun, copy_data_fun, data, detached);
  75 }
  76
  77 /**
  78  * @ingroup simix_comm_management
  79  */
  80 void simcall_comm_recv(smx_actor_t receiver, smx_mailbox_t mbox, void* dst_buff, size_t* dst_buff_size,
  81                        bool (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
  82                        void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t), void* data,
  83                        double timeout, double rate)
  84 {
  85   xbt_assert(std::isfinite(timeout), "timeout is not finite!");
  86   xbt_assert(mbox, "No rendez-vous point defined for recv");
  87
  88   if (MC_is_active() || MC_record_replay_is_active()) {
  89     /* the model-checker wants two separate simcalls */
  90     simgrid::kernel::activity::ActivityImplPtr comm =
  91         nullptr; /* MC needs the comm to be set to nullptr during the simcall */
  92     comm = simcall_comm_irecv(receiver, mbox, dst_buff, dst_buff_size,
  93                               match_fun, copy_data_fun, data, rate);
  94     simcall_comm_wait(comm.get(), timeout);
  95     comm = nullptr;
  96   }
  97   else {
  98     simcall_BODY_comm_recv(receiver, mbox, static_cast<unsigned char*>(dst_buff), dst_buff_size, match_fun,
  99                            copy_data_fun, data, timeout, rate);
 100   }
 101 }
 102 /**
 103  * @ingroup simix_comm_management
 104  */
 105 simgrid::kernel::activity::ActivityImplPtr
 106 simcall_comm_irecv(smx_actor_t receiver, smx_mailbox_t mbox, void* dst_buff, size_t* dst_buff_size,
 107                    bool (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
 108                    void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t), void* data, double rate)
 109 {
 110   xbt_assert(mbox, "No rendez-vous point defined for irecv");
 111
 112   return simcall_BODY_comm_irecv(receiver, mbox, static_cast<unsigned char*>(dst_buff), dst_buff_size, match_fun,
 113                                  copy_data_fun, data, rate);
 114 }
 115
 116 /**
 117  * @ingroup simix_comm_management
 118  */
 119 ssize_t simcall_comm_waitany(simgrid::kernel::activity::CommImpl* comms[], size_t count, double timeout)
 120 {
 121   return simcall_BODY_comm_waitany(comms, count, timeout);
 122 }
 123
 124 /**
 125  * @ingroup simix_comm_management
 126  */
 127 ssize_t simcall_comm_testany(simgrid::kernel::activity::CommImpl* comms[], size_t count)
 128 {
 129   if (count == 0)
 130     return -1;
 131   return simcall_BODY_comm_testany(comms, count);
 132 }
 133
 134 /**
 135  * @ingroup simix_comm_management
 136  */
 137 void simcall_comm_wait(simgrid::kernel::activity::ActivityImpl* comm, double timeout)
 138 {
 139   xbt_assert(std::isfinite(timeout), "timeout is not finite!");
 140   simcall_BODY_comm_wait(static_cast<simgrid::kernel::activity::CommImpl*>(comm), timeout);
 141 }
 142
 143 /**
 144  * @ingroup simix_comm_management
 145  *
 146  */
 147 bool simcall_comm_test(simgrid::kernel::activity::ActivityImpl* comm)
 148 {
 149   return simcall_BODY_comm_test(static_cast<simgrid::kernel::activity::CommImpl*>(comm));
 150 }
 151
 152 void simcall_run_kernel(std::function<void()> const& code, simgrid::kernel::actor::SimcallObserver* observer)
 153 {
 154   simgrid::kernel::actor::ActorImpl::self()->simcall_.observer_ = observer;
 155   simcall_BODY_run_kernel(&code);
 156   simgrid::kernel::actor::ActorImpl::self()->simcall_.observer_ = nullptr;
 157 }
 158
 159 void simcall_run_blocking(std::function<void()> const& code, simgrid::kernel::actor::SimcallObserver* observer)
 160 {
 161   simgrid::kernel::actor::ActorImpl::self()->simcall_.observer_ = observer;
 162   simcall_BODY_run_blocking(&code);
 163   simgrid::kernel::actor::ActorImpl::self()->simcall_.observer_ = nullptr;
 164 }
 165
 166 /* ************************************************************************** */
 167
 168 /** @brief returns a printable string representing a simcall */
 169 const char* SIMIX_simcall_name(const s_smx_simcall& simcall)
 170 {
 171   if (simcall.observer_ != nullptr) {
 172     static std::string name;
 173     name              = boost::core::demangle(typeid(*simcall.observer_).name());
 174     const char* cname = name.c_str();
 175     if (name.rfind("simgrid::kernel::", 0) == 0)
 176       cname += 17; // strip prefix "simgrid::kernel::"
 177     return cname;
 178   } else {
 179     return simcall_names[static_cast<int>(simcall.call_)];
 180   }
 181 }
 182
 183 namespace simgrid {
 184 namespace simix {
 185
 186 void unblock(smx_actor_t actor)
 187 {
 188   xbt_assert(s4u::Actor::is_maestro());
 189   actor->simcall_answer();
 190 }
 191 } // namespace simix
 192 } // namespace simgrid