X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e81b0628a697bddad304e69a82d898299ff9fe40..72ce071e25e2cc2626355a11d3e1088853343bfe:/doc/doxygen/uhood_switch.doc diff --git a/doc/doxygen/uhood_switch.doc b/doc/doxygen/uhood_switch.doc index 3515d8c23c..123a25d6d9 100644 --- a/doc/doxygen/uhood_switch.doc +++ b/doc/doxygen/uhood_switch.doc @@ -200,7 +200,7 @@ The crux of `future.then()` is: @code{cpp} template template -auto simgrid::kernel::Future::thenNoUnwrap(F continuation) +auto simgrid::kernel::Future::then_no_unwrap(F continuation) -> Future { typedef decltype(continuation(std::move(*this))) R; @@ -371,7 +371,7 @@ this generates a bunch of C++ files: responsible for wrapping the parameters in the `struct s_smx_simcall`; and wrapping out the result; -* [accessors](https://github.com/simgrid/simgrid/blob/4ae2fd01d8cc55bf83654e29f294335e3cb1f022/src/simix/popping_accessors.h) +* [accessors](https://github.com/simgrid/simgrid/blob/4ae2fd01d8cc55bf83654e29f294335e3cb1f022/src/simix/popping_accessors.hpp) to get/set values of of `struct s_smx_simcall`; * a simulation-kernel-side [big switch](https://github.com/simgrid/simgrid/blob/4ae2fd01d8cc55bf83654e29f294335e3cb1f022/src/simix/popping_generated.cpp#L106) @@ -468,14 +468,14 @@ kernel which will wake up the actor (with `simgrid::simix::unblock(actor)`) when the operation is completed. This is wrapped in a higher-level primitive as well. The -`kernelSync()` function expects a function-object which is executed +`kernel_sync()` function expects a function-object which is executed immediately in the simulation kernel and returns a `Future`. The simulator blocks the actor and resumes it when the `Future` becomes ready with its result: @code{cpp} template -auto kernelSync(F code) -> decltype(code().get()) +auto kernel_sync(F code) -> decltype(code().get()) { typedef decltype(code().get()) T; if (SIMIX_is_maestro()) @@ -510,7 +510,7 @@ auto kernelSync(F code) -> decltype(code().get()) A contrived example of this would be: @code{cpp} -int res = simgrid::simix::kernelSync([&] { +int res = simgrid::simix::kernel_sync([&] { return kernel_wait_until(30).then( [](simgrid::kernel::Future future) { return 42; @@ -521,7 +521,7 @@ int res = simgrid::simix::kernelSync([&] { ### Asynchronous operations {#uhood_switch_v2_async} -We can write the related `kernelAsync()` which wakes up the actor immediately +We can write the related `kernel_async()` which wakes up the actor immediately and returns a future to the actor. As this future is used in the actor context, it is a different future (`simgrid::simix::Future` instead of `simgrid::kernel::Future`) @@ -572,12 +572,12 @@ T simgrid::simix::Future::get() } @endcode -`kernelAsync()` simply :wink: calls `kernelImmediate()` and wraps the +`kernel_async()` simply :wink: calls `kernelImmediate()` and wraps the `simgrid::kernel::Future` into a `simgrid::simix::Future`: @code{cpp} template -auto kernelAsync(F code) +auto kernel_async(F code) -> Future { typedef decltype(code().get()) T; @@ -594,7 +594,7 @@ auto kernelAsync(F code) A contrived example of this would be: @code{cpp} -simgrid::simix::Future future = simgrid::simix::kernelSync([&] { +simgrid::simix::Future future = simgrid::simix::kernel_sync([&] { return kernel_wait_until(30).then( [](simgrid::kernel::Future future) { return 42; @@ -605,18 +605,18 @@ do_some_stuff(); int res = future.get(); @endcode -`kernelSync()` could be rewritten as: +`kernel_sync()` could be rewritten as: @code{cpp} template -auto kernelSync(F code) -> decltype(code().get()) +auto kernel_sync(F code) -> decltype(code().get()) { - return kernelAsync(std::move(code)).get(); + return kernel_async(std::move(code)).get(); } @endcode The semantic is equivalent but this form would require two simcalls -instead of one to do the same job (one in `kernelAsync()` and one in +instead of one to do the same job (one in `kernel_async()` and one in `.get()`). ## Mutexes and condition variables @@ -629,7 +629,7 @@ which can be exposed using the same API as `std::condition_variable`: @code{cpp} class ConditionVariable { private: - friend s_smx_cond; + friend s_smx_cond_t; smx_cond_t cond_; ConditionVariable(smx_cond_t cond) : cond_(cond) {} public: @@ -769,7 +769,7 @@ We wrote two future implementations based on the `std::future` API: * the second one is a wait-based (`future.get()`) future used in the actors which waits using a simcall. -These futures are used to implement `kernelSync()` and `kernelAsync()` which +These futures are used to implement `kernel_sync()` and `kernel_async()` which expose asynchronous operations in the simulation kernel to the actors. In addition, we wrote variations of some other C++ standard library @@ -815,30 +815,14 @@ single-object without shared-state and synchronisation: @code{cpp} template class Result { - enum class ResultStatus { - invalid, - value, - exception, - }; public: - Result(); - ~Result(); - Result(Result const& that); - Result& operator=(Result const& that); - Result(Result&& that); - Result& operator=(Result&& that); bool is_valid() const; - void reset(); void set_exception(std::exception_ptr e); void set_value(T&& value); void set_value(T const& value); T get(); private: - ResultStatus status_ = ResultStatus::invalid; - union { - T value_; - std::exception_ptr exception_; - }; + boost::variant value_; }; @endcode~