Completed code for assignment 4 of Operating Systems.

os/ass4/main.h

+/*
+ * Assignment 4 of Operating Systems: PThread simulation.
+ * 
+ * Sander van Veen (6167969) and Taddeus Kroes (6054129).
+ * <sandervv@gmail.com>      and <taddeuskroes@hotmail.com>.
+ * 
+ * Submission date: 21 november 2010.
+ */
+
+typedef struct diner_stats {
+    unsigned int meals;
+    unsigned int forks;
+    unsigned int id;
+    unsigned int locked;
+} diner_stats;
+
+/*
+ * Duration of the diner party (in seconds). When this time limit is reached,
+ * all philosophers are requested to pay their bill and leave the party.
+ */
+#define TIME_LIMIT 10.f
+
+int philo_left(diner_stats *stats, int id);
+int philo_right(diner_stats *stats, int id);
+int philo_optimistic(diner_stats *stats, int id);
+int philo_shy(diner_stats *stats, int id);
+int philo_random(diner_stats *stats, int id);
+
+typedef int(*philo_t)(diner_stats *, int);