#ifndef SIMGRID_S4U_ACTOR_HPP
#define SIMGRID_S4U_ACTOR_HPP
+#include <atomic>
+#include <functional>
+#include <memory>
#include <stdexcept>
+#include <type_traits>
+
#include <xbt/base.h>
+#include <xbt/functional.hpp>
+
#include <simgrid/simix.h>
#include <simgrid/s4u/forward.hpp>
namespace simgrid {
namespace s4u {
-/** @addtogroup s4u_actor
- *
- * @tableofcontents
+/** @ingroup s4u_api
*
* An actor is an independent stream of execution in your distributed application.
*
*
* @{
*/
-
+
/** @brief Simulation Agent (see \ref s4u_actor)*/
XBT_PUBLIC_CLASS Actor {
+private:
+ /** Wrap a (possibly non-copyable) single-use task into a `std::function` */
+ template<class F, class... Args>
+ static std::function<void()> wrap_task(F f, Args... args)
+ {
+ typedef decltype(f(std::move(args)...)) R;
+ auto task = std::make_shared<simgrid::xbt::Task<R()>>(
+ simgrid::xbt::makeTask(std::move(f), std::move(args)...));
+ return [=] {
+ (*task)();
+ };
+ }
public:
Actor() : pimpl_(nullptr) {}
Actor(smx_process_t smx_proc) :
swap(*this, actor);
}
+ /** Create an actor using a function
+ *
+ * If the actor is restarted, the actor has a fresh copy of the function.
+ */
Actor(const char* name, s4u::Host *host, double killTime, std::function<void()> code);
+
Actor(const char* name, s4u::Host *host, std::function<void()> code)
- : Actor(name, host, -1, std::move(code)) {};
- template<class C>
- Actor(const char* name, s4u::Host *host, C code)
- : Actor(name, host, -1, std::function<void()>(std::move(code))) {}
+ : Actor(name, host, -1.0, std::move(code)) {};
+
+ /** Create an actor using code
+ *
+ * Using this constructor, move-only type can be used. The consequence is
+ * that we cannot copy the value and restart the process in its initial
+ * state. In order to use auto-restart, an explicit `function` must be passed
+ * instead.
+ */
+ template<class F, class... Args,
+ // This constructor is enabled only if the call code(args...) is valid:
+ typename = typename std::result_of<F(Args...)>::type
+ >
+ Actor(const char* name, s4u::Host *host, F code, Args... args) :
+ Actor(name, host, wrap_task(std::move(code), std::move(args)...))
+ {}
+
+ // Create actor from function name:
+
+ Actor(const char* name, s4u::Host *host, double killTime,
+ const char* function, std::vector<std::string> args);
+
+ Actor(const char* name, s4u::Host *host, const char* function,
+ std::vector<std::string> args)
+ : Actor(name, host, -1.0, function, std::move(args)) {}
/** Retrieves the actor that have the given PID (or NULL if not existing) */
//static Actor *byPid(int pid); not implemented
void kill();
static void kill(int pid);
+ static Actor forPid(int pid);
/**
* Wait for the actor to finish.
/** Ask kindly to all actors to die. Only the issuer will survive. */
static void killAll();
+ bool valid() const { return pimpl_ != nullptr; }
+
private:
smx_process_t pimpl_ = nullptr;
};
-/** @brief Static methods working on the current actor (see @ref s4u_actor) */
+/** @ingroup s4u_api
+ * @brief Static methods working on the current actor (see @ref s4u::Actor) */
namespace this_actor {
/** Block the actor sleeping for that amount of seconds (may throws hostFailure) */
* See \ref Comm for the full communication API (including non blocking communications).
*/
XBT_PUBLIC(void) send(Mailbox &chan, void*payload, size_t simulatedSize);
+
+ /**
+ * Return the PID of the current actor.
+ */
+ XBT_PUBLIC(int) getPid();
};
