X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/88fad0aaff9eb463f048bfdfe4ad6218aba44ddb..184f0e36afb128db3cc35349d699b86f977c2820:/include/simgrid/s4u/Comm.hpp diff --git a/include/simgrid/s4u/Comm.hpp b/include/simgrid/s4u/Comm.hpp index 077718bebe..366d38babf 100644 --- a/include/simgrid/s4u/Comm.hpp +++ b/include/simgrid/s4u/Comm.hpp @@ -1,4 +1,4 @@ -/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2006-2023. 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. */ @@ -6,16 +6,10 @@ #ifndef SIMGRID_S4U_COMM_HPP #define SIMGRID_S4U_COMM_HPP -#include -#include -#include - #include #include -#include -#include -#include +#include #include namespace simgrid { @@ -24,107 +18,167 @@ namespace s4u { * * Represents all asynchronous communications, that you can test or wait onto. */ -class XBT_PUBLIC Comm : public Activity { - Comm() : Activity() {} -public: - friend XBT_PUBLIC void intrusive_ptr_release(simgrid::s4u::Comm * c); - friend XBT_PUBLIC void intrusive_ptr_add_ref(simgrid::s4u::Comm * c); +class XBT_PUBLIC Comm : public Activity_T { friend Mailbox; // Factory of comms + /* specified for normal mailbox-based communications*/ + Mailbox* mailbox_ = nullptr; + kernel::actor::ActorImpl* sender_ = nullptr; + kernel::actor::ActorImpl* receiver_ = nullptr; + double rate_ = -1; + void* dst_buff_ = nullptr; + size_t dst_buff_size_ = 0; + void* src_buff_ = nullptr; + size_t src_buff_size_ = sizeof(void*); - virtual ~Comm(); + /* FIXME: expose these elements in the API */ + bool detached_ = false; + std::function match_fun_; + std::function clean_fun_; + std::function copy_data_function_; - /*! take a vector s4u::CommPtr and return when one of them is finished. - * The return value is the rank of the first finished CommPtr. */ - static int wait_any(std::vector * comms) { return wait_any_for(comms, -1); } - /*! Same as wait_any, but with a timeout. If the timeout occurs, parameter last is returned.*/ - static int wait_any_for(std::vector * comms_in, double timeout) - { - // Map to dynar: - xbt_dynar_t comms = xbt_dynar_new(sizeof(simgrid::kernel::activity::ActivityImpl*), [](void*ptr){ - intrusive_ptr_release(*(simgrid::kernel::activity::ActivityImpl**)ptr); - }); - for (auto const& comm : *comms_in) { - if (comm->state_ == inited) - comm->start(); - xbt_assert(comm->state_ == started); - simgrid::kernel::activity::ActivityImpl* ptr = comm->pimpl_.get(); - intrusive_ptr_add_ref(ptr); - xbt_dynar_push_as(comms, simgrid::kernel::activity::ActivityImpl*, ptr); - } - // Call the underlying simcall: - int idx = simcall_comm_waitany(comms, timeout); - xbt_dynar_free(&comms); - return idx; - } + Comm() = default; + Comm* do_start() override; - /*! take a vector s4u::CommPtr and return when all of them is finished. */ - static void wait_all(std::vector * comms) - { - // TODO: this should be a simcall or something - // TODO: we are missing a version with timeout - for (CommPtr comm : *comms) { - comm->wait(); - } - } - /*! take a vector s4u::CommPtr and return the rank of the first finished one (or -1 if none is done). */ - static int test_any(std::vector * comms); +public: + /* signals and related callbacks */ +#ifndef DOXYGEN + /* FIXME signals should be private */ + static xbt::signal on_send; + static xbt::signal on_recv; + static xbt::signal on_start; +#endif + + static void on_send_cb(const std::function& cb) { on_send.connect(cb); } + static void on_recv_cb(const std::function& cb) { on_recv.connect(cb); } + static void on_start_cb(const std::function& cb) { on_start.connect(cb); } + void fire_this_completion() const override { on_completion(*this); } + /* More callbacks */ + CommPtr set_copy_data_callback(const std::function& callback); + XBT_ATTRIB_DEPRECATED_v337("Please manifest if you actually need this function") static void copy_buffer_callback( + kernel::activity::CommImpl*, void*, size_t); + XBT_ATTRIB_DEPRECATED_v337("Please manifest if you actually need this function") static void copy_pointer_callback( + kernel::activity::CommImpl*, void*, size_t); + + ~Comm() override; + + static void send(kernel::actor::ActorImpl* sender, const Mailbox* mbox, double task_size, double rate, void* src_buff, + size_t src_buff_size, + const std::function& match_fun, + const std::function& copy_data_fun, + void* data, double timeout); + static void recv(kernel::actor::ActorImpl* receiver, const Mailbox* mbox, void* dst_buff, size_t* dst_buff_size, + const std::function& match_fun, + const std::function& copy_data_fun, + void* data, double timeout, double rate); + + /* "One-sided" communications. This way of communicating bypasses the mailbox and actors mechanism. It creates a + * communication (vetoabled, asynchronous, or synchronous) directly between two hosts. There is really no limit on + * the hosts involved. In particular, the actor creating such a communication does not have to be on one of the + * involved hosts! Enjoy the comfort of the simulator :) + */ + static CommPtr sendto_init(); /* Source and Destination hosts have to be set before the communication can start */ + static CommPtr sendto_init(Host* from, Host* to); + static CommPtr sendto_async(Host* from, Host* to, uint64_t simulated_size_in_bytes); + static void sendto(Host* from, Host* to, uint64_t simulated_size_in_bytes); + + CommPtr set_source(Host* from); + Host* get_source() const; + CommPtr set_destination(Host* to); + Host* get_destination() const; + + /* Mailbox-based communications */ + CommPtr set_mailbox(Mailbox* mailbox); + /** Retrieve the mailbox on which this comm acts */ + Mailbox* get_mailbox() const { return mailbox_; } + + /** Specify the data to send. + * + * @beginrst + * This is way will get actually copied over to the receiver. + * That's completely unrelated from the simulated size (given by :cpp:func:`simgrid::s4u::Comm::set_payload_size`): + * you can send a short buffer in your simulator, that represents a very large message + * in the simulated world, or the opposite. + * @endrst + */ + CommPtr set_src_data(void* buff); + /** Specify the size of the data to send (not to be mixed with set_payload_size()) + * + * @beginrst + * That's the size of the data to actually copy in the simulator (ie, the data passed with + * :cpp:func:`simgrid::s4u::Comm::set_src_data`). That's completely unrelated from the simulated size (given by + * :cpp:func:`simgrid::s4u::Comm::set_payload_size`)): you can send a short buffer in your simulator, that represents + * a very large message in the simulated world, or the opposite. + * @endrst + */ + CommPtr set_src_data_size(size_t size); + /** Specify the data to send and its size (not to be mixed with set_payload_size()) + * + * @beginrst + * This is way will get actually copied over to the receiver. + * That's completely unrelated from the simulated size (given by :cpp:func:`simgrid::s4u::Comm::set_payload_size`): + * you can send a short buffer in your simulator, that represents a very large message + * in the simulated world, or the opposite. + * @endrst + */ + CommPtr set_src_data(void* buff, size_t size); + + /** Specify where to receive the data. + * + * That's a buffer where the sent data will be copied */ + CommPtr set_dst_data(void** buff); + /** Specify the buffer in which the data should be received + * + * That's a buffer where the sent data will be copied */ + CommPtr set_dst_data(void** buff, size_t size); + /** Retrieve where the data will be copied on the receiver side */ + void* get_dst_data() const { return dst_buff_; } + /** Retrieve the size of the received data. Not to be mixed with @ref Activity::get_remaining() */ + size_t get_dst_data_size() const { return dst_buff_size_; } + + /* Common functions */ + + /** Specify the amount of bytes which exchange should be simulated (not to be mixed with set_src_data_size()) + * + * @beginrst + * That's the size of the simulated data, that's completely unrelated from the actual data size (given by + * :cpp:func:`simgrid::s4u::Comm::set_src_data_size`). + * @endrst + */ + CommPtr set_payload_size(uint64_t bytes); + /** Sets the maximal communication rate (in byte/sec). Must be done before start */ + CommPtr set_rate(double rate); - Activity* start() override; - Activity* wait() override; - Activity* wait(double timeout) override; + bool is_assigned() const override; + Actor* get_sender() const; + /* Comm life cycle */ /** Start the comm, and ignore its result. It can be completely forgotten after that. */ - Activity* detach(); + Comm* detach(); /** Start the comm, and ignore its result. It can be completely forgotten after that. */ - Activity* detach(void (*cleanFunction)(void*)) + Comm* detach(const std::function& clean_function) { - cleanFunction_ = cleanFunction; + clean_fun_ = clean_function; return detach(); } - /** Sets the maximal communication rate (in byte/sec). Must be done before start */ - Activity* setRate(double rate); - - /** Specify the data to send */ - Activity* setSrcData(void* buff); - /** Specify the size of the data to send */ - Activity* setSrcDataSize(size_t size); - /** Specify the data to send and its size */ - Activity* setSrcData(void* buff, size_t size); - - /** Specify where to receive the data */ - Activity* setDstData(void** buff); - /** Specify the buffer in which the data should be received */ - Activity* setDstData(void** buff, size_t size); - /** Retrieve the size of the received data */ - size_t getDstDataSize(); - - bool test(); - Activity* cancel(); - - /** Retrieve the mailbox on which this comm acts */ - MailboxPtr getMailbox(); + Comm* wait_for(double timeout) override; -private: - double rate_ = -1; - void* dstBuff_ = nullptr; - size_t dstBuffSize_ = 0; - void* srcBuff_ = nullptr; - size_t srcBuffSize_ = sizeof(void*); - - /* FIXME: expose these elements in the API */ - int detached_ = 0; - int (*matchFunction_)(void*, void*, simgrid::kernel::activity::CommImpl*) = nullptr; - void (*cleanFunction_)(void*) = nullptr; - void (*copyDataFunction_)(smx_activity_t, void*, size_t) = nullptr; + /*! take a vector s4u::CommPtr and return the rank of the first finished one (or -1 if none is done). */ + static ssize_t test_any(const std::vector& comms); - smx_actor_t sender_ = nullptr; - smx_actor_t receiver_ = nullptr; - MailboxPtr mailbox_ = nullptr; + /*! take a vector s4u::CommPtr and return when one of them is finished. + * The return value is the rank of the first finished CommPtr. */ + static ssize_t wait_any(const std::vector& comms) { return wait_any_for(comms, -1); } + /*! Same as wait_any, but with a timeout. Return -1 if the timeout occurs.*/ + static ssize_t wait_any_for(const std::vector& comms, double timeout); - std::atomic_int_fast32_t refcount_{0}; + /*! take a vector s4u::CommPtr and return when all of them is finished. */ + static void wait_all(const std::vector& comms); + /*! Same as wait_all, but with a timeout. Return the number of terminated comm (less than comms.size() if the timeout + * occurs). */ + static size_t wait_all_for(const std::vector& comms, double timeout); }; -} -} // namespace simgrid::s4u +} // namespace s4u +} // namespace simgrid #endif /* SIMGRID_S4U_COMM_HPP */