sockets: Add a function to disable all listening sockets.

When invoking several copies of m5 on the same machine at the same
time, there can be a race for TCP ports for the terminal connections
or remote gdb.  Expose a function to disable those ports, and have the
regression scripts disable them.  There are some SimObjects that have
no other function than to be used with ports (NativeTrace and
EtherTap), so they will panic if the ports are disabled.

2 files changed, 5 insertions, 0 deletions

diff --git a/src/python/m5/simulate.py b/src/python/m5/simulate.py
index 3d91da368..e4dbd5784 100644
--- a/src/python/m5/simulate.py
+++ b/src/python/m5/simulate.py
@@ -182,3 +182,5 @@ def switchCpus(cpuList):
 
     for old_cpu, new_cpu in cpuList:
         new_cpu.takeOverFrom(old_cpu)
+
+from internal.core import disableAllListeners
diff --git a/src/python/swig/core.i b/src/python/swig/core.i
index 53d992ac6..3d360c017 100644
--- a/src/python/swig/core.i
+++ b/src/python/swig/core.i
@@ -34,6 +34,7 @@
 %{
 #include "python/swig/pyobject.hh"
 
+#include "base/socket.hh"
 #include "sim/core.hh"
 #include "sim/host.hh"
 #include "sim/startup.hh"
@@ -42,6 +43,7 @@ extern const char *compileDate;
 std::vector<std::string> compileFlags();
 extern const char *hgRev;
 extern const char *hgDate;
+inline void disableAllListeners() { ListenSocket::disableAll(); }
 %}
 
 %include "stdint.i"
@@ -53,6 +55,7 @@ void setOutputDir(const std::string &dir);
 void setOutputFile(const std::string &file);
 void SimStartup();
 void doExitCleanup();
+void disableAllListeners();
 
 %immutable compileDate;
 char *compileDate;