Add very simple daemon helpers

Utils/DaemonTools.cc

+// $Id$
+//
+// Copyright (C) 2006 
+
+// Definition of non-inline non-template functions
+
+#include "DaemonTools.hh"
+//#include "DaemonTools.ih"
+
+// Custom includes
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "Exception.hh"
+
+//#include "DaemonTools.mpp"
+#define prefix_
+///////////////////////////////cc.p////////////////////////////////////////
+
+prefix_ void satcom::lib::daemonize()
+{
+    int pid = fork();
+    if (pid < 0)
+	throw satcom::lib::SystemException("fork",errno);
+    if (pid > 0)
+	::_exit(0);
+    if (::setsid() < 0)
+	throw satcom::lib::SystemException("setsid",errno);
+}
+
+prefix_ void satcom::lib::redirect_stdio(std::string const & path)
+{
+    int fd = ::open(path.c_str(),O_RDWR);
+    if (fd < 0) throw satcom::lib::SystemException("open",errno);
+    if (dup2(fd,0) < 0) throw satcom::lib::SystemException("dup2",errno);
+    if (dup2(fd,1) < 0) throw satcom::lib::SystemException("dup2",errno);
+    if (dup2(fd,2) < 0) throw satcom::lib::SystemException("dup2",errno);
+    if (::close(fd) < 0) throw satcom::lib::SystemException("close",errno);
+}
+
+///////////////////////////////cc.e////////////////////////////////////////
+#undef prefix_
+//#include "DaemonTools.mpp"
+
+
+// Local Variables:
+// mode: c++
+// End:

Utils/DaemonTools.hh

+// $Id$
+//
+// Copyright (C) 2006 
+
+#ifndef HH_DaemonTools_
+#define HH_DaemonTools_ 1
+
+// Custom includes
+#include <string>
+
+//#include "DaemonTools.mpp"
+///////////////////////////////hh.p////////////////////////////////////////
+
+namespace satcom {
+namespace lib {
+
+    void daemonize();
+    void redirect_stdio(std::string const & path = "/dev/null");
+
+}}
+
+///////////////////////////////hh.e////////////////////////////////////////
+//#include "DaemonTools.cci"
+//#include "DaemonTools.ct"
+//#include "DaemonTools.cti"
+//#include "DaemonTools.mpp"
+#endif
+
+
+// Local Variables:
+// mode: c++
+// End: