/* 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 "src/msg/msg_private.h"
#include "simgrid/s4u/Comm.hpp"
#include "simgrid/s4u/Mailbox.hpp"
}
state_ = started;
}
+
+/** @brief Block the calling actor until the communication is finished */
void Comm::wait() {
- xbt_assert(state_ == started || state_ == inited || state_ == finished);
-
- if (state_ == finished)
- return;
-
- if (state_ == started)
- simcall_comm_wait(pimpl_, -1/*timeout*/);
- else { // state_ == inited. Save a simcall and do directly a blocking send/recv
- if (srcBuff_ != nullptr) {
- simcall_comm_send(sender_, mailbox_->getImpl(), remains_, rate_,
- srcBuff_, srcBuffSize_,
- matchFunction_, copyDataFunction_,
- userData_, -1 /*timeout*/);
- } else {
- simcall_comm_recv(receiver_, mailbox_->getImpl(), dstBuff_, &dstBuffSize_,
- matchFunction_, copyDataFunction_,
- userData_, -1/*timeout*/, rate_);
- }
- }
- state_ = finished;
+ 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. */
void Comm::wait(double timeout) {
- xbt_assert(state_ == started || state_ == inited || state_ == finished);
-
- if (state_ == finished)
- return;
-
- if (state_ == started) {
- simcall_comm_wait(pimpl_, timeout);
- state_ = finished;
- return;
- }
-
- // It's not started yet. Do it in one simcall
- if (srcBuff_ != nullptr) {
- simcall_comm_send(sender_, mailbox_->getImpl(), remains_, rate_,
- srcBuff_, srcBuffSize_,
- matchFunction_, copyDataFunction_,
- userData_, timeout);
- } else { // Receiver
- simcall_comm_recv(receiver_, mailbox_->getImpl(), dstBuff_, &dstBuffSize_,
- matchFunction_, copyDataFunction_,
- userData_, timeout, rate_);
+ switch (state_) {
+ case finished:
+ return;
+
+ case inited: // It's not started yet. Do it in one simcall
+ if (srcBuff_ != nullptr) {
+ simcall_comm_send(sender_, mailbox_->getImpl(), remains_, rate_, srcBuff_, srcBuffSize_, matchFunction_,
+ copyDataFunction_, userData_, timeout);
+ } else { // Receiver
+ simcall_comm_recv(receiver_, mailbox_->getImpl(), dstBuff_, &dstBuffSize_, matchFunction_, copyDataFunction_,
+ userData_, timeout, rate_);
+ }
+ state_ = finished;
+ return;
+
+ case started:
+ simcall_comm_wait(pimpl_, timeout);
+ state_ = finished;
+ return;
+
+ default:
+ THROW_IMPOSSIBLE;
}
- state_ = finished;
}
void Comm::detach()
commPimpl->cancel();
}
-bool Comm::test() {
+bool Comm::test()
+{
xbt_assert(state_ == inited || state_ == started || state_ == finished);
if (state_ == finished) {
return false;
}
+MailboxPtr Comm::getMailbox()
+{
+ return mailbox_;
+}
+
void intrusive_ptr_release(simgrid::s4u::Comm* c)
{
if (c->refcount_.fetch_sub(1, std::memory_order_release) == 1) {