+++ /dev/null
-/* Copyright (c) 2006-2018. 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. */
-
-#include "src/msg/msg_private.hpp"
-#include "xbt/log.h"
-
-#include "simgrid/s4u/Comm.hpp"
-#include "simgrid/s4u/Mailbox.hpp"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_comm,s4u_activity,"S4U asynchronous communications");
-
-namespace simgrid {
-namespace s4u {
-Comm::~Comm()
-{
- if (state_ == State::started && not detached_ && (pimpl_ == nullptr || pimpl_->state == SIMIX_RUNNING)) {
- XBT_INFO("Comm %p freed before its completion. Detached: %d, State: %d", this, detached_, (int)state_);
- if (pimpl_ != nullptr)
- XBT_INFO("pimpl_->state: %d", pimpl_->state);
- else
- XBT_INFO("pimpl_ is null");
- xbt_backtrace_display_current();
- }
-}
-
-int Comm::wait_any_for(std::vector<CommPtr>* comms_in, double timeout)
-{
- // Map to dynar<Synchro*>:
- 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_ == Activity::State::inited)
- comm->start();
- xbt_assert(comm->state_ == Activity::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;
-}
-
-void Comm::wait_all(std::vector<CommPtr>* comms)
-{
- // TODO: this should be a simcall or something
- // TODO: we are missing a version with timeout
- for (CommPtr comm : *comms) {
- comm->wait();
- }
-}
-
-Activity* Comm::set_rate(double rate)
-{
- xbt_assert(state_ == State::inited);
- rate_ = rate;
- return this;
-}
-
-Activity* Comm::set_src_data(void* buff)
-{
- xbt_assert(state_ == State::inited);
- xbt_assert(dst_buff_ == nullptr, "Cannot set the src and dst buffers at the same time");
- src_buff_ = buff;
- return this;
-}
-Activity* Comm::set_src_data_size(size_t size)
-{
- xbt_assert(state_ == State::inited);
- src_buff_size_ = size;
- return this;
-}
-Activity* Comm::set_src_data(void* buff, size_t size)
-{
- xbt_assert(state_ == State::inited);
-
- xbt_assert(dst_buff_ == nullptr, "Cannot set the src and dst buffers at the same time");
- src_buff_ = buff;
- src_buff_size_ = size;
- return this;
-}
-Activity* Comm::set_dst_data(void** buff)
-{
- xbt_assert(state_ == State::inited);
- xbt_assert(src_buff_ == nullptr, "Cannot set the src and dst buffers at the same time");
- dst_buff_ = buff;
- return this;
-}
-size_t Comm::get_dst_data_size()
-{
- xbt_assert(state_ == State::finished);
- return dst_buff_size_;
-}
-Activity* Comm::set_dst_data(void** buff, size_t size)
-{
- xbt_assert(state_ == State::inited);
-
- xbt_assert(src_buff_ == nullptr, "Cannot set the src and dst buffers at the same time");
- dst_buff_ = buff;
- dst_buff_size_ = size;
- return this;
-}
-
-Activity* Comm::start()
-{
- xbt_assert(state_ == State::inited);
-
- if (src_buff_ != nullptr) { // Sender side
- pimpl_ = simcall_comm_isend(sender_, mailbox_->get_impl(), remains_, rate_, src_buff_, src_buff_size_, match_fun_,
- clean_fun_, copy_data_function_, user_data_, detached_);
- } else if (dst_buff_ != nullptr) { // Receiver side
- xbt_assert(not detached_, "Receive cannot be detached");
- pimpl_ = simcall_comm_irecv(receiver_, mailbox_->get_impl(), dst_buff_, &dst_buff_size_, match_fun_,
- copy_data_function_, user_data_, rate_);
-
- } else {
- xbt_die("Cannot start a communication before specifying whether we are the sender or the receiver");
- }
- state_ = State::started;
- return this;
-}
-
-/** @brief Block the calling actor until the communication is finished */
-Activity* Comm::wait()
-{
- return this->wait(-1);
-}
-
-/** @brief Block the calling actor until the communication is finished, or until timeout
- *
- * On timeout, an exception is thrown.
- *
- * @param timeout the amount of seconds to wait for the comm termination.
- * Negative values denote infinite wait times. 0 as a timeout returns immediately. */
-Activity* Comm::wait(double timeout)
-{
- switch (state_) {
- case State::finished:
- return this;
-
- case State::inited: // It's not started yet. Do it in one simcall
- if (src_buff_ != nullptr) {
- simcall_comm_send(sender_, mailbox_->get_impl(), remains_, rate_, src_buff_, src_buff_size_, match_fun_,
- copy_data_function_, user_data_, timeout);
- } else { // Receiver
- simcall_comm_recv(receiver_, mailbox_->get_impl(), dst_buff_, &dst_buff_size_, match_fun_, copy_data_function_,
- user_data_, timeout, rate_);
- }
- state_ = State::finished;
- return this;
-
- case State::started:
- simcall_comm_wait(pimpl_, timeout);
- state_ = State::finished;
- return this;
-
- default:
- THROW_IMPOSSIBLE;
- }
- return this;
-}
-int Comm::test_any(std::vector<CommPtr>* comms)
-{
- smx_activity_t* array = new smx_activity_t[comms->size()];
- for (unsigned int i = 0; i < comms->size(); i++) {
- array[i] = comms->at(i)->pimpl_;
- }
- int res = simcall_comm_testany(array, comms->size());
- delete[] array;
- return res;
-}
-
-Activity* Comm::detach()
-{
- xbt_assert(state_ == State::inited, "You cannot detach communications once they are started (not implemented).");
- xbt_assert(src_buff_ != nullptr && src_buff_size_ != 0, "You can only detach sends, not recvs");
- detached_ = true;
- return start();
-}
-
-Activity* Comm::cancel()
-{
- simgrid::kernel::activity::CommImplPtr commPimpl =
- boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(pimpl_);
- commPimpl->cancel();
- return this;
-}
-
-bool Comm::test()
-{
- xbt_assert(state_ == State::inited || state_ == State::started || state_ == State::finished);
-
- if (state_ == State::finished)
- return true;
-
- if (state_ == State::inited)
- this->start();
-
- if(simcall_comm_test(pimpl_)){
- state_ = State::finished;
- return true;
- }
- return false;
-}
-
-MailboxPtr Comm::get_mailbox()
-{
- return mailbox_;
-}
-
-void intrusive_ptr_release(simgrid::s4u::Comm* c)
-{
- if (c->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
- std::atomic_thread_fence(std::memory_order_acquire);
- delete c;
- }
-}
-void intrusive_ptr_add_ref(simgrid::s4u::Comm* c)
-{
- c->refcount_.fetch_add(1, std::memory_order_relaxed);
-}
-}
-} // namespaces
