X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a15797ea55151ddfdbae48147e74159efe01b411..7341151507abf1d7931e8ca2df777541b5f6bfe2:/include/simgrid/simix.hpp

diff --git a/include/simgrid/simix.hpp b/include/simgrid/simix.hpp
index ad30d41907..9b48240802 100644
--- a/include/simgrid/simix.hpp
+++ b/include/simgrid/simix.hpp
@@ -9,22 +9,44 @@
 
 #include <cstddef>
 
-#include <exception>
 #include <string>
 #include <utility>
 #include <memory>
 #include <functional>
-#include <future>
-#include <type_traits>
 
 #include <xbt/function_types.h>
 #include <xbt/future.hpp>
+#include <xbt/functional.hpp>
+#include <xbt/signal.hpp>
 
 #include <simgrid/simix.h>
 
 XBT_PUBLIC(void) simcall_run_kernel(std::function<void()> const& code);
 
+/** 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);
+
+template<class F> inline
+void simcall_run_kernel(F& f)
+{
+  simcall_run_kernel(std::function<void()>(std::ref(f)));
+}
+template<class F> inline
+void simcall_run_blocking(F& f)
+{
+  simcall_run_blocking(std::function<void()>(std::ref(f)));
+}
+
 namespace simgrid {
+
 namespace simix {
 
 /** Execute some code in the kernel/maestro
@@ -34,122 +56,42 @@ namespace simix {
  *  of the operation with respect to other simcalls.
  */
 template<class F>
-typename std::result_of<F()>::type kernel(F&& code)
+typename std::result_of<F()>::type kernelImmediate(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;
+  simgrid::xbt::Result<R> result;
   simcall_run_kernel([&]{
     xbt_assert(SIMIX_is_maestro(), "Not in maestro");
-    simgrid::xbt::fulfillPromise(promise, std::forward<F>(code));
+    simgrid::xbt::fulfillPromise(result, std::forward<F>(code));
   });
-  return promise.get_future().get();
+  return result.get();
 }
 
-class Context;
-class ContextFactory;
-
-XBT_PUBLIC_CLASS ContextFactory {
-private:
-  std::string name_;
-public:
-
-  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;
-
-  // Optional methods for attaching main() as a context:
-
-  /** Creates a context from the current context of execution
-   *
-   *  This will not work on all implementation of `ContextFactory`.
-   */
-  virtual Context* attach(void_pfn_smxprocess_t cleanup_func, smx_process_t process);
-  virtual Context* create_maestro(std::function<void()> code, smx_process_t process);
-
-  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;
-  }
-};
-
-XBT_PUBLIC_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()
-  {
-    return this->process_;
-  }
-  void set_cleanup(void_pfn_smxprocess_t cleanup)
-  {
-    cleanup_func_ = cleanup;
-  }
-
-  // Virtual methods
-  virtual ~Context();
-  virtual void stop();
-  virtual void suspend() = 0;
-};
-
-XBT_PUBLIC_CLASS AttachContext : public Context {
-public:
-
-  AttachContext(std::function<void()> code,
-          void_pfn_smxprocess_t cleanup_func,
-          smx_process_t process)
-    : Context(std::move(code), cleanup_func, process)
-  {}
-
-  ~AttachContext();
-
-  /** Called by the context when it is ready to give control
-   *  to the maestro.
-   */
-  virtual void attach_start() = 0;
-
-  /** Called by the context when it has finished its job */
-  virtual void attach_stop() = 0;
-};
 
 XBT_PUBLIC(void) set_maestro(std::function<void()> code);
 XBT_PUBLIC(void) create_maestro(std::function<void()> code);
 
+// What's executed as SIMIX actor code:
+typedef std::function<void()> ActorCode;
+
+// Create ActorCode based on argv:
+typedef std::function<ActorCode(std::vector<std::string> args)> ActorCodeFactory;
+
+XBT_PUBLIC(void) registerFunction(const char* name, ActorCodeFactory factory);
+
+/** These functions will be called when we detect a deadlock: any remaining process is locked on an action
+ *
+ * If these functions manage to unlock some of the processes, then the deadlock will be avoided.
+ */
+extern simgrid::xbt::signal<void(void)> onDeadlock;
 }
 }
 
@@ -164,7 +106,7 @@ XBT_PUBLIC(void) create_maestro(std::function<void()> code);
  * int argc, char **argv: parameters passed to code
  * xbt_dict_t pros: properties
  */
-typedef smx_process_t (*smx_creation_func_t) (
+typedef smx_actor_t (*smx_creation_func_t) (
                                       /* name */ const char*,
                                       std::function<void()> code,
                                       /* userdata */ void*,
@@ -172,12 +114,12 @@ typedef smx_process_t (*smx_creation_func_t) (
                                       /* kill_time */ double,
                                       /* props */ xbt_dict_t,
                                       /* auto_restart */ int,
-                                      /* parent_process */ smx_process_t);
+                                      /* parent_process */ smx_actor_t);
 
 extern "C"
 XBT_PUBLIC(void) SIMIX_function_register_process_create(smx_creation_func_t function);
 
-XBT_PUBLIC(smx_process_t) simcall_process_create(const char *name,
+XBT_PUBLIC(smx_actor_t) simcall_process_create(const char *name,
                                           std::function<void()> code,
                                           void *data,
                                           const char *hostname,
@@ -185,7 +127,13 @@ XBT_PUBLIC(smx_process_t) simcall_process_create(const char *name,
                                           xbt_dict_t properties,
                                           int auto_restart);
 
-XBT_PUBLIC(smx_timer_t) SIMIX_timer_set(double date, std::function<void()> callback);
+XBT_PUBLIC(smx_timer_t) SIMIX_timer_set(double date, simgrid::xbt::Task<void()> callback);
+
+template<class F> inline
+XBT_PUBLIC(smx_timer_t) SIMIX_timer_set(double date, F callback)
+{
+  return SIMIX_timer_set(date, simgrid::xbt::Task<void()>(std::move(callback)));
+}
 
 template<class R, class T> inline
 XBT_PUBLIC(smx_timer_t) SIMIX_timer_set(double date, R(*callback)(T*), T* arg)