-/* Copyright (c) 2015-2019. The SimGrid Team.
+/* Copyright (c) 2015-2023. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
#include <xbt/log.h>
#include <cerrno>
-#include <unistd.h>
+#include <cstring>
#include <sys/socket.h>
#include <sys/types.h>
+#include <unistd.h>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_Channel, mc, "MC interprocess communication");
-namespace simgrid {
-namespace mc {
+namespace simgrid::mc {
Channel::~Channel()
{
/** @brief Send a message; returns 0 on success or errno on failure */
int Channel::send(const void* message, size_t size) const
{
- XBT_DEBUG("Send %s", MC_message_type_name(*(e_mc_message_type*)message));
while (::send(this->socket_, message, size, 0) == -1) {
- if (errno != EINTR)
+ if (errno != EINTR) {
+ XBT_ERROR("Channel::send failure: %s", strerror(errno));
return errno;
+ }
+ }
+
+ if (is_valid_MessageType(*static_cast<const int*>(message))) {
+ XBT_DEBUG("Sending %s (%zu bytes sent)", to_c_str(*static_cast<const MessageType*>(message)), size);
+ } else {
+ XBT_DEBUG("Sending bytes directly (from address %p) (%zu bytes sent)", message, size);
}
+
return 0;
}
-ssize_t Channel::receive(void* message, size_t size, bool block) const
+ssize_t Channel::receive(void* message, size_t size) const
{
- int res = recv(this->socket_, message, size, block ? 0 : MSG_DONTWAIT);
- if (res != -1)
- XBT_DEBUG("Receive %s", MC_message_type_name(*(e_mc_message_type*)message));
+ ssize_t res = recv(this->socket_, message, size, 0);
+ if (res != -1) {
+ if (is_valid_MessageType(*static_cast<int*>(message))) {
+ XBT_DEBUG("Receive %s (requested %zu; received %zd)", to_c_str(*static_cast<MessageType*>(message)), size, res);
+ } else {
+ XBT_DEBUG("Receive %zd bytes", res);
+ }
+ } else {
+ XBT_ERROR("Channel::receive failure: %s", strerror(errno));
+ }
return res;
}
-}
-}
+} // namespace simgrid::mc