-/* Copyright (c) 2006-2016. The SimGrid Team. All rights reserved. */
+/* 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. */
#ifndef SIMGRID_S4U_COMM_HPP
#define SIMGRID_S4U_COMM_HPP
+#include <xbt/asserts.h>
#include <xbt/base.h>
+#include <xbt/dynar.h>
#include <simgrid/forward.h>
#include <simgrid/s4u/Activity.hpp>
#include <simgrid/s4u/forward.hpp>
+#include <simgrid/simix.h>
+
+#include <atomic>
+#include <vector>
namespace simgrid {
namespace s4u {
-
/** @brief Communication async
*
* Represents all asynchronous communications, that you can test or wait onto.
*/
-XBT_PUBLIC_CLASS Comm : public Activity
-{
+class XBT_PUBLIC Comm : public Activity {
Comm() : Activity() {}
public:
- virtual ~Comm() = default;
+ friend XBT_PUBLIC void intrusive_ptr_release(simgrid::s4u::Comm * c);
+ friend XBT_PUBLIC void intrusive_ptr_add_ref(simgrid::s4u::Comm * c);
+ friend Mailbox; // Factory of comms
- /*! take a range of s4u::Comm* (last excluded) and return when one of them is finished. The return value is an
- * iterator on the finished Comms. */
- template <class I> static I wait_any(I first, I last)
+ virtual ~Comm();
+
+ /*! 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<CommPtr> * 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<CommPtr> * comms_in, double timeout)
{
// Map to dynar<Synchro*>:
- xbt_dynar_t comms = xbt_dynar_new(sizeof(simgrid::kernel::activity::ActivityImpl*), NULL);
- for (I iter = first; iter != last; iter++) {
- Comm& comm = **iter;
- if (comm.state_ == inited)
- comm.start();
- xbt_assert(comm.state_ == started);
- xbt_dynar_push_as(comms, simgrid::kernel::activity::ActivityImpl*, comm.pimpl_);
+ 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, -1);
+ int idx = simcall_comm_waitany(comms, timeout);
xbt_dynar_free(&comms);
- // Not found:
- if (idx == -1)
- return last;
- // Lift the index to the corresponding iterator:
- auto res = std::next(first, idx);
- (*res)->state_ = finished;
- return res;
+ return idx;
}
- /*! Same as wait_any, but with a timeout. If wait_any_for return because of the timeout last is returned.*/
- template <class I> static I wait_any_for(I first, I last, double timeout)
+
+ /*! take a vector s4u::CommPtr and return when all of them is finished. */
+ static void wait_all(std::vector<CommPtr> * comms)
{
- // Map to dynar<Synchro*>:
- xbt_dynar_t comms = xbt_dynar_new(sizeof(simgrid::kernel::activity::ActivityImpl*), NULL);
- for (I iter = first; iter != last; iter++) {
- Comm& comm = **iter;
- if (comm.state_ == inited)
- comm.start();
- xbt_assert(comm.state_ == started);
- xbt_dynar_push_as(comms, simgrid::kernel::activity::ActivityImpl*, comm.pimpl_);
+ // TODO: this should be a simcall or something
+ // TODO: we are missing a version with timeout
+ for (CommPtr comm : *comms) {
+ comm->wait();
}
- // Call the underlying simcall:
- int idx = simcall_comm_waitany(comms, timeout);
- xbt_dynar_free(&comms);
- // Not found:
- if (idx == -1)
- return last;
- // Lift the index to the corresponding iterator:
- auto res = std::next(first, idx);
- (*res)->state_ = finished;
- return res;
}
- /** Creates (but don't start) an async send to the mailbox @p dest */
- static Comm& send_init(MailboxPtr dest);
- /** Creates and start an async send to the mailbox @p dest */
- static Comm& send_async(MailboxPtr dest, void* data, int simulatedByteAmount);
- /** Creates (but don't start) an async recv onto the mailbox @p from */
- static Comm& recv_init(MailboxPtr from);
- /** Creates and start an async recv to the mailbox @p from */
- static Comm& recv_async(MailboxPtr from, void** data);
-
- void start() override;
- void wait() override;
- void wait(double timeout) override;
+ /*! 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<CommPtr> * comms);
+
+ Activity* start() override;
+ Activity* wait() override;
+ Activity* wait(double timeout) override;
+
+ /** Start the comm, and ignore its result. It can be completely forgotten after that. */
+ Activity* detach();
+ /** Start the comm, and ignore its result. It can be completely forgotten after that. */
+ Activity* detach(void (*cleanFunction)(void*))
+ {
+ cleanFunction_ = cleanFunction;
+ return detach();
+ }
/** Sets the maximal communication rate (in byte/sec). Must be done before start */
- void setRate(double rate);
+ Activity* set_rate(double rate);
/** Specify the data to send */
- void setSrcData(void* buff);
+ Activity* set_src_data(void* buff);
/** Specify the size of the data to send */
- void setSrcDataSize(size_t size);
+ Activity* set_src_data_size(size_t size);
/** Specify the data to send and its size */
- void setSrcData(void* buff, size_t size);
+ Activity* set_src_data(void* buff, size_t size);
/** Specify where to receive the data */
- void setDstData(void** buff);
+ Activity* set_dst_data(void** buff);
/** Specify the buffer in which the data should be received */
- void setDstData(void** buff, size_t size);
+ Activity* set_dst_data(void** buff, size_t size);
/** Retrieve the size of the received data */
- size_t getDstDataSize();
+ size_t get_dst_data_size();
bool test();
+ Activity* cancel();
+
+ /** Retrieve the mailbox on which this comm acts */
+ MailboxPtr get_mailbox();
+
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::set_rate()") Activity* setRate(double rate) { return set_rate(rate); }
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::set_src_data()") Activity* setSrcData(void* buff)
+ {
+ return set_src_data(buff);
+ }
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::set_src_data()") Activity* setSrcData(void* buff, size_t size)
+ {
+ return set_src_data(buff, size);
+ }
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::set_src_data_size()") Activity* setSrcDataSize(size_t size)
+ {
+ return set_src_data_size(size);
+ }
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::set_dst_data()") Activity* setDstData(void** buff)
+ {
+ return set_dst_data(buff);
+ }
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::set_dst_data()") Activity* setDstData(void** buff, size_t size)
+ {
+ return set_dst_data(buff, size);
+ }
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::get_dst_data_size()") size_t getDstDataSize()
+ {
+ return get_dst_data_size();
+ }
+ XBT_ATTRIB_DEPRECATED_v323("Please use Comm::get_mailbox()") MailboxPtr getMailbox() { return get_mailbox(); }
private:
double rate_ = -1;
/* FIXME: expose these elements in the API */
int detached_ = 0;
- int (*matchFunction_)(void*, void*, smx_activity_t) = nullptr;
+ int (*matchFunction_)(void*, void*, simgrid::kernel::activity::CommImpl*) = nullptr;
void (*cleanFunction_)(void*) = nullptr;
void (*copyDataFunction_)(smx_activity_t, void*, size_t) = nullptr;
smx_actor_t sender_ = nullptr;
smx_actor_t receiver_ = nullptr;
MailboxPtr mailbox_ = nullptr;
+
+ std::atomic_int_fast32_t refcount_{0};
};
}
} // namespace simgrid::s4u