-/* Copyright (c) 2007-2010, 2012-2015. The SimGrid Team.
+/* Copyright (c) 2007-2019. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
#ifndef SIMGRID_SIMIX_HPP
#define SIMGRID_SIMIX_HPP
-#include <cstddef>
+#include <simgrid/simix.h>
+#include <xbt/functional.hpp>
+#include <xbt/future.hpp>
+#include <xbt/signal.hpp>
+#include <boost/heap/fibonacci_heap.hpp>
#include <string>
-#include <utility>
-#include <memory>
-#include <functional>
-#include <future>
-#include <type_traits>
-
-#include <xbt/function_types.h>
-#include <simgrid/simix.h>
+#include <unordered_map>
-XBT_PUBLIC(void) simcall_run_kernel(std::function<void()> const& code);
+XBT_PUBLIC void simcall_run_kernel(std::function<void()> const& code);
-namespace simgrid {
-namespace simix {
+/** Execute some code in the kernel and block
+ *
+ * run_blocking() is a generic blocking simcall. It is given a callback
+ * which is executed immediately in the SimGrid kernel. The callback is
+ * responsible for setting the suitable logic for waking up the process
+ * when needed.
+ *
+ * @ref simix::kernelSync() is a higher level wrapper for this.
+ */
+XBT_PUBLIC void simcall_run_blocking(std::function<void()> const& code);
-/** Fulfill a promise by executing a given code */
-template<class R, class F>
-void fulfill_promise(std::promise<R>& promise, F&& code)
+template<class F> inline
+void simcall_run_kernel(F& f)
{
- try {
- promise.set_value(std::forward<F>(code)());
- }
- catch(...) {
- promise.set_exception(std::current_exception());
- }
+ simcall_run_kernel(std::function<void()>(std::ref(f)));
}
-
-/** Fulfill a promise by executing a given code
- *
- * This is a special version for `std::promise<void>` because the default
- * version does not compile in this case.
- */
-template<class F>
-void fulfill_promise(std::promise<void>& promise, F&& code)
+template<class F> inline
+void simcall_run_blocking(F& f)
{
- try {
- std::forward<F>(code)();
- promise.set_value();
- }
- catch(...) {
- promise.set_exception(std::current_exception());
- }
+ simcall_run_blocking(std::function<void()>(std::ref(f)));
}
+namespace simgrid {
+namespace simix {
+
/** Execute some code in the kernel/maestro
*
* This can be used to enforce mutual exclusion with other simcall.
* More importantly, this enforces a deterministic/reproducible ordering
* of the operation with respect to other simcalls.
*/
-template<class F>
-typename std::result_of<F()>::type kernel(F&& code)
+template <class F> typename std::result_of<F()>::type simcall(F&& code)
{
// If we are in the maestro, we take the fast path and execute the
// code directly without simcall mashalling/unmarshalling/dispatch:
if (SIMIX_is_maestro())
return std::forward<F>(code)();
- // If we are in the application, pass the code to the maestro which is
+ // If we are in the application, pass the code to the maestro which
// executes it for us and reports the result. We use a std::future which
// conveniently handles the success/failure value for us.
typedef typename std::result_of<F()>::type R;
- std::promise<R> promise;
- simcall_run_kernel([&]{
- xbt_assert(SIMIX_is_maestro(), "Not in maestro");
- fulfill_promise(promise, std::forward<F>(code));
- });
- return promise.get_future().get();
+ simgrid::xbt::Result<R> result;
+ simcall_run_kernel([&result, &code] { simgrid::xbt::fulfill_promise(result, std::forward<F>(code)); });
+ return result.get();
}
-class Context;
-class ContextFactory;
+XBT_ATTRIB_DEPRECATED_v325("Please manifest if you actually need this function")
+ XBT_PUBLIC const std::vector<smx_actor_t>& process_get_runnable();
-class ContextFactory {
-private:
- std::string name_;
-public:
+// What's executed as SIMIX actor code:
+typedef std::function<void()> ActorCode;
- ContextFactory(std::string name) : name_(std::move(name)) {}
- virtual ~ContextFactory();
- virtual Context* create_context(std::function<void()> code,
- void_pfn_smxprocess_t cleanup, smx_process_t process) = 0;
- virtual void run_all() = 0;
- virtual Context* self();
- std::string const& name() const
- {
- return name_;
- }
-private:
- void declare_context(void* T, std::size_t size);
-protected:
- template<class T, class... Args>
- T* new_context(Args&&... args)
- {
- T* context = new T(std::forward<Args>(args)...);
- this->declare_context(context, sizeof(T));
- return context;
- }
-};
+// Create an ActorCode based on a std::string
+typedef std::function<ActorCode(std::vector<std::string> args)> ActorCodeFactory;
+
+XBT_PUBLIC void register_function(const std::string& name, const ActorCodeFactory& factory);
+
+typedef std::pair<double, Timer*> TimerQelt;
+static boost::heap::fibonacci_heap<TimerQelt, boost::heap::compare<xbt::HeapComparator<TimerQelt>>> simix_timers;
+
+/** @brief Timer datatype */
+class Timer {
+ double date = 0.0;
-class Context {
-private:
- std::function<void()> code_;
- void_pfn_smxprocess_t cleanup_func_ = nullptr;
- smx_process_t process_ = nullptr;
-public:
- bool iwannadie;
public:
- Context(std::function<void()> code,
- void_pfn_smxprocess_t cleanup_func,
- smx_process_t process);
- void operator()()
- {
- code_();
- }
- bool has_code() const
- {
- return (bool) code_;
- }
- smx_process_t process()
+ decltype(simix_timers)::handle_type handle_;
+
+ Timer(double date, simgrid::xbt::Task<void()> callback) : date(date), callback(std::move(callback)) {}
+
+ simgrid::xbt::Task<void()> callback;
+ double get_date() { return date; }
+ void remove();
+
+ template <class F> static inline Timer* set(double date, F callback)
{
- return this->process_;
+ return set(date, simgrid::xbt::Task<void()>(std::move(callback)));
}
- void set_cleanup(void_pfn_smxprocess_t cleanup)
+
+ template <class R, class T> static inline Timer* set(double date, R (*callback)(T*), T* arg)
{
- cleanup_func_ = cleanup;
+ return set(date, [callback, arg]() { callback(arg); });
}
- // Virtual methods
- virtual ~Context();
- virtual void stop();
- virtual void suspend() = 0;
+ static Timer* set(double date, void (*callback)(void*), void* arg);
+ static Timer* set(double date, simgrid::xbt::Task<void()> callback);
+ static double next() { return simix_timers.empty() ? -1.0 : simix_timers.top().first; }
};
-}
-}
+} // namespace simix
+} // namespace simgrid
+
+XBT_PUBLIC smx_actor_t simcall_process_create(const std::string& name, const simgrid::simix::ActorCode& code,
+ void* data, sg_host_t host,
+ std::unordered_map<std::string, std::string>* properties);
+
+XBT_PUBLIC smx_timer_t SIMIX_timer_set(double date, simgrid::xbt::Task<void()> callback);
+
-#endif
\ No newline at end of file
+#endif