Parallel Programming - Finished pthreads

[matches/honours.git] / course / semester2 / pprog / assignment1 / mthread / nbody.h

diff --git a/course/semester2/pprog/assignment1/mthread/nbody.h b/course/semester2/pprog/assignment1/mthread/nbody.h
index 9b76bc7..9948e52 100644 (file)
--- a/course/semester2/pprog/assignment1/mthread/nbody.h
+++ b/course/semester2/pprog/assignment1/mthread/nbody.h
@@ -4,35 +4,47 @@
 
 #include "../single-thread/nbody.h" //Use original simulation code
 #include <pthread.h>
+#include "barrier.h" // Barriers
 
 #undef SINGLE_THREADED
 #define PTHREADED
 
 #define DEFAULT_WORKING_THREADS 2 
 
+//#define PERSISTENT_THREADS //If defined, threads will not be continually destroyed and then respawned
+
+
+
 //Undefine default macros, replace with functions
 #undef Simulation_Run
-void Simulation_Run(void);
+void Simulation_Run(int argc, char ** argv);
 #undef QuitProgram
 void QuitProgram(bool error);
 
+#undef BeforeDraw
+void BeforeDraw();
+#undef AfterDraw
+void AfterDraw();
+
 
 void * Compute_Thread(void * system); //Thread - Continuously perform computations for a System of bodies. May spawn additional worker threads.
 
-void * Force_Thread(void * system); //Thread - Compute forces for all objects in a system
-void * Position_Thread(void * system); //Thread - Compute positions for all objects in a system
 
 
 
+System * Split_System(System * s, unsigned n); // Splits one system into a number of other systems, returns an array of size n
+pthread_t * Allocate_Threads(unsigned n); // Allocates space for threads - handles errors
+
+#ifdef PERSISTENT_THREADS
+void * Worker_Thread(void * arg);
+#endif //PERSISTENT_THREADS
+void * Force_Thread(void * system); //Thread - Compute forces for all objects in a system
+void * Position_Thread(void * system); //Thread - Compute positions for all objects in a system
+
 void Thread_Cleanup(void); //Called at program exit to safely join computation thread
 
-extern pthread_t compute_thread; // ID of the thread that runs Compute_Thread. 
-extern pthread_mutex_t mutex_runstate; //Mutex around the "runstate" variable
 
-extern pthread_t * worker_thread; //Array of worker threads responsible for Force and Position updates
-extern System * sub_system; //Array of Systems used to divide up the main "universe" System for worker threads
-extern pthread_mutex_t mutex_workers;
-extern pthread_cond_t workers_done_cv;
-extern unsigned workers_busy;
+
+void * StepFunction(void * s); //Function called at the end of every step
 
 #endif //_NBODY_MTHREAD_H