[mc] Encapsulate model-checker/model-checker communications classes

[simgrid.git] / src / mc / Channel.cpp

diff --git a/src/mc/Channel.cpp b/src/mc/Channel.cpp
new file mode 100644 (file)
index 0000000..b368eaf
--- /dev/null
+++ b/src/mc/Channel.cpp
@@ -0,0 +1,53 @@
+/* Copyright (c) 2015-2016. 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 <errno.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <xbt/log.h>
+
+#include "src/mc/Channel.hpp"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_Channel, mc, "MC interprocess communication");
+
+namespace simgrid {
+namespace mc {
+
+Channel::~Channel()
+{
+  if (this->socket_ >=0)
+    close(this->socket_);
+}
+
+int Channel::send(const void* message, size_t size) const
+{
+  XBT_DEBUG("Protocol [%s] send %s",
+    MC_mode_name(mc_mode),
+    MC_message_type_name(*(e_mc_message_type*) message));
+
+  while (::send(this->socket_, message, size, 0) == -1)
+    if (errno == EINTR)
+      continue;
+    else
+      return errno;
+  return 0;
+}
+
+ssize_t Channel::receive(void* message, size_t size, bool block) const
+{
+  int res = recv(this->socket_, message, size, block ? 0 : MSG_DONTWAIT);
+  if (res != -1)
+    XBT_DEBUG("Protocol [%s] received %s",
+      MC_mode_name(mc_mode),
+      MC_message_type_name(*(e_mc_message_type*) message));
+  return res;
+}
+
+}
+}