src/s4u/s4u_actor.cpp

   1 /* Copyright (c) 2006-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   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. */
   6
   7 #include "xbt/log.h"
   8
   9 #include "simgrid/s4u/Actor.hpp"
  10 #include "simgrid/s4u/comm.hpp"
  11 #include "simgrid/s4u/host.hpp"
  12 #include "simgrid/s4u/Mailbox.hpp"
  13
  14 #include "src/kernel/context/Context.hpp"
  15
  16 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_actor,"S4U actors");
  17
  18 namespace simgrid {
  19 namespace s4u {
  20
  21 // ***** Actor creation *****
  22 ActorPtr Actor::self()
  23 {
  24   smx_context_t self_context = SIMIX_context_self();
  25   if (self_context == nullptr)
  26     return simgrid::s4u::ActorPtr();
  27
  28   return simgrid::s4u::ActorPtr(&self_context->process()->getIface());
  29 }
  30
  31
  32 ActorPtr Actor::createActor(const char* name, s4u::Host *host, double killTime, std::function<void()> code)
  33 {
  34   // TODO, when autorestart is used, the std::function is copied so the new
  35   // instance will get a fresh (reinitialized) state. Is this what we want?
  36   smx_actor_t process = simcall_process_create(
  37     name, std::move(code), nullptr, host, killTime, nullptr, 0);
  38   return ActorPtr(&process->getIface());
  39 }
  40
  41 ActorPtr Actor::createActor(const char* name, s4u::Host *host, double killTime,
  42   const char* function, std::vector<std::string> args)
  43 {
  44   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(function);
  45   simgrid::simix::ActorCode code = factory(std::move(args));
  46   smx_actor_t process = simcall_process_create(
  47     name, std::move(code), nullptr, host, killTime, nullptr, 0);
  48   return ActorPtr(&process->getIface());
  49 }
  50
  51 // ***** Actor methods *****
  52
  53 void Actor::join() {
  54   simcall_process_join(this->pimpl_, -1);
  55 }
  56
  57 void Actor::setAutoRestart(bool autorestart) {
  58   simcall_process_auto_restart_set(pimpl_,autorestart);
  59 }
  60
  61 s4u::Host* Actor::host()
  62 {
  63   return this->pimpl_->host;
  64 }
  65
  66 simgrid::xbt::string Actor::name()
  67 {
  68   return this->pimpl_->name;
  69 }
  70
  71 int Actor::pid()
  72 {
  73   return this->pimpl_->pid;
  74 }
  75
  76 int Actor::ppid()
  77 {
  78   return this->pimpl_->ppid;
  79 }
  80
  81 void Actor::setKillTime(double time) {
  82   simcall_process_set_kill_time(pimpl_,time);
  83 }
  84
  85 double Actor::killTime()
  86 {
  87   return simcall_process_get_kill_time(pimpl_);
  88 }
  89
  90 void Actor::kill(int pid) {
  91   msg_process_t process = SIMIX_process_from_PID(pid);
  92   if(process != nullptr) {
  93     simcall_process_kill(process);
  94   } else {
  95     std::ostringstream oss;
  96     oss << "kill: ("<< pid <<") - No such process" << std::endl;
  97     throw std::runtime_error(oss.str());
  98   }
  99 }
 100
 101 smx_actor_t Actor::getImpl() {
 102   return pimpl_;
 103 }
 104
 105 void Actor::kill() {
 106   simcall_process_kill(pimpl_);
 107 }
 108
 109 // ***** Static functions *****
 110
 111 ActorPtr Actor::byPid(int pid)
 112 {
 113   smx_actor_t process = SIMIX_process_from_PID(pid);
 114   if (process != nullptr)
 115     return ActorPtr(&process->getIface());
 116   else
 117     return nullptr;
 118 }
 119
 120 void Actor::killAll() {
 121   simcall_process_killall(1);
 122 }
 123
 124 // ***** this_actor *****
 125
 126 namespace this_actor {
 127
 128 void sleep_for(double duration)
 129 {
 130   if (duration > 0)
 131     simcall_process_sleep(duration);
 132 }
 133
 134 XBT_PUBLIC(void) sleep_until(double timeout)
 135 {
 136   double now = SIMIX_get_clock();
 137   if (timeout > now)
 138     simcall_process_sleep(timeout - now);
 139 }
 140
 141 e_smx_state_t execute(double flops) {
 142   smx_activity_t s = simcall_execution_start(nullptr,flops,1.0/*priority*/,0./*bound*/);
 143   return simcall_execution_wait(s);
 144 }
 145
 146 void* recv(MailboxPtr chan) {
 147   void *res = nullptr;
 148   Comm& c = Comm::recv_init(chan);
 149   c.setDstData(&res,sizeof(res));
 150   c.wait();
 151   return res;
 152 }
 153
 154 void send(MailboxPtr chan, void *payload, size_t simulatedSize) {
 155   Comm& c = Comm::send_init(chan);
 156   c.setRemains(simulatedSize);
 157   c.setSrcData(payload);
 158   // c.start() is optional.
 159   c.wait();
 160 }
 161
 162 int pid()
 163 {
 164   return SIMIX_process_self()->pid;
 165 }
 166
 167 int ppid()
 168 {
 169   return SIMIX_process_self()->ppid;
 170 }
 171
 172 }
 173 }
 174 }