Added utility for spawning/monitoring/killing processes, fixed reaping of child processes for all Connectors

util/proc.h

@@ -0,0 +1,28 @@
+/// \file proc.h
+/// Contains generic function headers for managing processes.
+
+#include <unistd.h>
+#include <string>
+#include <map>
+
+/// Contains utility code, not directly related to streaming media
+namespace Util{
+
+  /// Deals with spawning, monitoring and stopping child processes
+  class Procs{
+    private:
+      static std::map<pid_t, std::string> plist; ///< Holds active processes
+      static bool handler_set; ///< If true, the sigchld handler has been setup.
+      static void childsig_handler(int signum);
+    public:
+      static pid_t Start(std::string name, std::string cmd);
+      static void Stop(std::string name);
+      static void Stop(pid_t name);
+      static void StopAll();
+      static int Count();
+      static bool isActive(std::string name);
+      static bool isActive(pid_t name);
+      static pid_t getPid(std::string name);
+      static std::string getName(pid_t name);
+  };
+};