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