X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/71980d9754a6693a769dce2f1e55d92103b46b5e..9ff25e521350bc747f963bfe70bf3f84930c1a07:/include/simgrid/simix/blocking_simcall.hpp

diff --git a/include/simgrid/simix/blocking_simcall.hpp b/include/simgrid/simix/blocking_simcall.hpp
deleted file mode 100644
index 7fa0b25d6d..0000000000
--- a/include/simgrid/simix/blocking_simcall.hpp
+++ /dev/null
@@ -1,163 +0,0 @@
-/* Copyright (c) 2016. The SimGrid Team.
- * All rights reserved.                                                     */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef SIMGRID_SIMIX_BLOCKING_SIMCALL_HPP
-#define SIMGRID_SIMIX_BLOCKING_SIMCALL_HPP
-
-#include <exception>
-#include <functional>
-#include <future>
-#include <utility>
-
-#include <xbt/sysdep.h>
-
-#include <xbt/future.hpp>
-#include <simgrid/kernel/future.hpp>
-#include <simgrid/simix.h>
-#include <simgrid/simix.hpp>
-
-XBT_PUBLIC(void) simcall_run_blocking(std::function<void()> const& code);
-
-namespace simgrid {
-namespace simix {
-
-XBT_PUBLIC(void) unblock(smx_process_t process);
-
-/** Execute some code in kernel mode and wakes up the process when
- *  the result is available.
- *
- * It is given a callback which is executed in the kernel SimGrid and
- * returns a simgrid::kernel::Future<T>. The kernel blocks the process
- * until the Future is ready and either the value wrapped in the future
- * to the process or raises the exception stored in the Future in the process.
- *
- * This can be used to implement blocking calls without adding new simcalls.
- * One downside of this approach is that we don't have any semantic on what
- * the process is waiting. This might be a problem for the model-checker and
- * we'll have to devise a way to make it work.
- *
- * @param     code Kernel code returning a `simgrid::kernel::Future<T>`
- * @return         Value of the kernel future
- * @exception      Exception from the kernel future
- */
-template<class F>
-auto kernelSync(F code) -> decltype(code().get())
-{
-  typedef decltype(code().get()) T;
-  if (SIMIX_is_maestro())
-    xbt_die("Can't execute blocking call in kernel mode");
-
-  smx_process_t self = SIMIX_process_self();
-  simgrid::xbt::Result<T> result;
-
-  simcall_run_blocking([&result, self, &code]{
-    try {
-      auto future = code();
-      future.then_([&result, self](simgrid::kernel::Future<T> value) {
-        simgrid::xbt::setPromise(result, value);
-        simgrid::simix::unblock(self);
-      });
-    }
-    catch (...) {
-      result.set_exception(std::current_exception());
-      simgrid::simix::unblock(self);
-    }
-  });
-  return result.get();
-}
-
-/** A blocking (`wait()`-based) future for SIMIX processes */
-// TODO, .wait_for()
-// TODO, .wait_until()
-// TODO, SharedFuture
-// TODO, simgrid::simix::when_all - wait for all future to be ready (this one is simple!)
-// TODO, simgrid::simix::when_any - wait for any future to be ready
-template <class T>
-class Future {
-public:
-  Future() {}
-  Future(simgrid::kernel::Future<T> future) : future_(std::move(future)) {}
-
-  bool valid() const { return future_.valid(); }
-  T get()
-  {
-    if (!valid())
-      throw std::future_error(std::future_errc::no_state);
-    smx_process_t self = SIMIX_process_self();
-    simgrid::xbt::Result<T> result;
-    simcall_run_blocking([this, &result, self]{
-      try {
-        // When the kernel future is ready...
-        this->future_.then_([this, &result, self](simgrid::kernel::Future<T> value) {
-          // ... wake up the process with the result of the kernel future.
-          simgrid::xbt::setPromise(result, value);
-          simgrid::simix::unblock(self);
-        });
-      }
-      catch (...) {
-        result.set_exception(std::current_exception());
-        simgrid::simix::unblock(self);
-      }
-    });
-    return result.get();
-  }
-  bool is_ready() const
-  {
-    if (!valid())
-      throw std::future_error(std::future_errc::no_state);
-    return future_.is_ready();
-  }
-  void wait()
-  {
-    // The future is ready! We don't have to wait:
-    if (this->is_ready())
-      return;
-    // The future is not ready. We have to delegate to the SimGrid kernel:
-    std::exception_ptr exception;
-    smx_process_t self = SIMIX_process_self();
-    simcall_run_blocking([this, &exception, self]{
-      try {
-        // When the kernel future is ready...
-        this->future_.then_([this, self](simgrid::kernel::Future<T> value) {
-          // ...store it the simix kernel and wake up.
-          this->future_ = std::move(value);
-          simgrid::simix::unblock(self);
-        });
-      }
-      catch (...) {
-        exception = std::current_exception();
-        simgrid::simix::unblock(self);
-      }
-    });
-  }
-private:
-  // We wrap an event-based kernel future:
-  simgrid::kernel::Future<T> future_;
-};
-
-/** Start some asynchronous work
- *
- *  @param code SimGrid kernel code which returns a simgrid::kernel::Future
- *  @return     User future
- */
-template<class F>
-auto kernelAsync(F code)
-  -> Future<decltype(code().get())>
-{
-  typedef decltype(code().get()) T;
-
-  // Execute the code in the kernel and get the kernel simcall:
-  simgrid::kernel::Future<T> future =
-    simgrid::simix::kernelImmediate(std::move(code));
-
-  // Wrap tyhe kernel simcall in a user simcall:
-  return simgrid::simix::Future<T>(std::move(future));
-}
-
-}
-}
-
-#endif