Start semaphoring out

inc/consumer.hpp

@@ -1,2 +1,8 @@
 
-void consumer ();
+/*
+   consumer:
+      Unlinks blocks from list2,
+      Consumes them,
+      Links them to freelist
+*/
+void *consumer (void *);

inc/globals.hpp

@@ -4,4 +4,9 @@
 extern block memory[N];
 // create the three lists
 extern list lists[3];
-extern list *freelist, *list1, *list2;
+extern list *freelist, *list1, *list2;
+
+// count semaphores
+extern sem_t semfl, seml1, seml2;
+// binary semaphores
+extern sem_t mutfl, mutl1, mutl2;

inc/list.hpp

@@ -20,5 +20,4 @@ void   list_link   (list *l, block *b);
 //   list_init:   links an array of blocks onto the end of a list
 void   list_init   (list *l, block *m, int size);
 //   list_print:  prints a list
-void   list_print  (list *l);
-void   list_concise(list *l);
+void   list_print(list *l, bool verbose = false);

inc/producer.hpp

@@ -1,2 +1,8 @@
 
-void producer ();
+/*
+   producer:
+      Unlinks blocks from freelist,
+      Produces them,
+      Links them to list1
+*/
+void *producer (void *);

inc/transformer.hpp

@@ -1,2 +1,10 @@
 
-void transformer ();
+/*
+   transformer:
+      Unlinks block x from list1
+      Unlinks block y from freelist
+      Uses block x to generate block y's data
+      Links block x to freelist
+      Links block y to list2
+*/
+void *transformer (void *);