Mind: Distribute and pin Mind threads to CPUs

At startup, Marionette will distribute and pin the Mind
threads across the available CPUs, warning if it couldn't
do so.

smocore/include/componentThread.h

@@ -8,6 +8,9 @@
 #include <stdexcept>
 #include <queue>
 #include <functional>
+#include <pthread.h>
+#include <sched.h>
+#include <unistd.h>
 
 namespace smo {
 
@@ -29,6 +32,7 @@ public:
 	ComponentThread(ThreadId id)
     :   id(id), name(getThreadName(id)),
         work(io_service), pause_work(pause_io_service),
+        pinnedCpuId(-1),
         thread(
 			((id == MRNTT) ? marionetteMain : main),
 			std::ref(*this))
@@ -87,6 +91,11 @@ public:
 	static void exitAllMindThreadsReq(std::function<void()> callback = nullptr);
 	static void joltAllMindThreadsReq(std::function<void()> callback = nullptr);
 
+	// CPU management methods
+	static int getAvailableCpuCount();
+	void pinToCpu(int cpuId);
+	static void distributeAndPinThreadsAcrossCpus();
+
 	enum class ThreadOp
 	{
 		START,
@@ -110,6 +119,7 @@ public:
 	boost::asio::io_service pause_io_service;
 	boost::asio::io_service::work pause_work;
 	std::atomic<bool> keepLooping;
+	int pinnedCpuId;
 
     /* Always ensure that this is last so that the thread is spawned after
      * everything else is constructed.