fix build dependency checking, cleanup, simulation callback

5 files changed, 84 insertions, 18 deletions

diff --git a/src/client_reqs.h b/src/client_reqs.h
index 0d2a63c..a2146c4 100644
--- a/src/client_reqs.h
+++ b/src/client_reqs.h
@@ -26,7 +26,7 @@
 
 enum room_id;
 
-enum reqdata_typespec { TYPE_NONE = 0, TYPE_USERDATA, TYPE_BOOLEAN } reqdata_type;
+enum reqdata_typespec { TYPE_NONE = 0, TYPE_USERDATA, TYPE_BOOLEAN };
 
 union reqdata_t {
     struct userdata_t userdata;
diff --git a/src/hash.c b/src/hash.c
index 1e7b732..a2938e1 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -200,6 +200,7 @@ static void hash_internal_insert_new(const void *key, const void *data, struct h
         /* resize if load factor exceeds threshold */
         if((map->used_buckets << 16) / (map->table_sz) >= RESIZE_THRESHOLD)
         {
+            //printf("resizing map of %zu elements...\n", map->used_buckets);
             hash_resize(map, map->table_sz * 2);
         }
     }
@@ -548,7 +549,7 @@ void hash_dump(void *ptr)
                 --used_buckets;
             while(iter)
             {
-                printf(" --> `%s'", iter->key);
+                printf(" --> `%s'", (char*)iter->key);
                 ++n_entries;
                 iter = iter->next;
             }
diff --git a/src/server.c b/src/server.c
index 75c87f6..b736124 100644
--- a/src/server.c
+++ b/src/server.c
@@ -42,7 +42,7 @@ static uint16_t port = DEFAULT_PORT;
 static int server_socket;
 
 /* for debugging: */
-static char *world_module = "build/worlds/netcosm_default.so";
+static char *world_module = "build/worlds/dunnet.so";
 static char *module_handle = NULL;
 
 /* save after every X changes to the world state */
@@ -188,27 +188,48 @@ static void check_userfile(void)
 static void load_worldfile(void)
 {
     /* load the world module */
+
     module_handle = dlopen(world_module, RTLD_NOW);
     if(!module_handle)
         error("cannot load world module `%s' (%s)", world_module, dlerror());
 
     /* load symbols */
-    size_t *ptr;
-
-    netcosm_verb_classes = dlsym(module_handle, "netcosm_verb_classes");
-    ptr = dlsym(module_handle, "netcosm_verb_classes_sz");
-    netcosm_verb_classes_sz = *ptr;
+    {
+        size_t *ptr;
 
-    netcosm_obj_classes = dlsym(module_handle, "netcosm_obj_classes");
-    ptr = dlsym(module_handle, "netcosm_obj_classes_sz");
-    netcosm_obj_classes_sz = *ptr;
+        netcosm_verb_classes = dlsym(module_handle, "netcosm_verb_classes");
+        ptr = dlsym(module_handle, "netcosm_verb_classes_sz");
+        netcosm_verb_classes_sz = *ptr;
 
-    netcosm_world = dlsym(module_handle, "netcosm_world");
-    ptr = dlsym(module_handle, "netcosm_world_sz");
-    netcosm_world_sz = *ptr;
+        netcosm_obj_classes = dlsym(module_handle, "netcosm_obj_classes");
+        ptr = dlsym(module_handle, "netcosm_obj_classes_sz");
+        netcosm_obj_classes_sz = *ptr;
 
-    char **tmp = dlsym(module_handle, "netcosm_world_name");
-    netcosm_world_name = *tmp;
+        netcosm_world = dlsym(module_handle, "netcosm_world");
+        ptr = dlsym(module_handle, "netcosm_world_sz");
+        netcosm_world_sz = *ptr;
+    }
+    {
+        char **ptr = dlsym(module_handle, "netcosm_world_name");
+        netcosm_world_name = *ptr;
+    }
+    {
+        void *ptr;
+        ptr = dlsym(module_handle, "netcosm_world_simulation_cb");
+        netcosm_world_simulation_cb = ptr;
+    }
+    {
+        unsigned *ptr;
+        ptr = dlsym(module_handle, "netcosm_world_simulation_interval");
+        if(ptr)
+            netcosm_world_simulation_interval = *ptr;
+        else
+        {
+            netcosm_world_simulation_interval = 0;
+            if(netcosm_world_simulation_cb)
+                error("have simulation callback, but no interval specified");
+        }
+    }
 
     if(access(WORLDFILE, F_OK) < 0)
     {
@@ -483,6 +504,12 @@ int server_main(int argc, char *argv[])
 
     parse_args(argc, argv);
 
+    /* load default if none specified */
+    if(!world_module)
+    {
+        error("no world module specified");
+    }
+
     /* this must be done before any world module data is used */
     load_worldfile();
 
diff --git a/src/world.c b/src/world.c
index d7c3590..d0e1711 100644
--- a/src/world.c
+++ b/src/world.c
@@ -35,6 +35,10 @@ size_t netcosm_obj_classes_sz;
 const struct roomdata_t *netcosm_world;
 size_t netcosm_world_sz;
 
+/* simulation callback */
+void (*netcosm_world_simulation_cb)(void) = NULL;
+unsigned netcosm_world_simulation_interval = 0;
+
 const char *netcosm_world_name;
 
 /* processed world data */
@@ -157,6 +161,16 @@ void world_save(const char *fname)
     close(fd);
 }
 
+static ev_timer *sim_timer = NULL;
+
+static void sim_cb(EV_P_ ev_timer *w, int revents)
+{
+    (void) EV_A;
+    (void) w;
+    (void) revents;
+    netcosm_world_simulation_cb();
+}
+
 void world_free(void)
 {
     if(world)
@@ -174,6 +188,20 @@ void world_free(void)
         free(world);
         world = NULL;
     }
+    if(sim_timer)
+        free(sim_timer);
+}
+
+static void start_sim_callback(void)
+{
+    /* start callback */
+    if(netcosm_world_simulation_cb && netcosm_world_simulation_interval)
+    {
+        sim_timer = calloc(1, sizeof(ev_timer));
+        ev_timer_init(sim_timer, sim_cb, netcosm_world_simulation_interval/1000.0,
+                      netcosm_world_simulation_interval/1000.0);
+        ev_timer_start(EV_DEFAULT_ sim_timer);
+    }
 }
 
 /**
@@ -208,8 +236,8 @@ bool world_load(const char *fname, const struct roomdata_t *data, size_t data_sz
     world_name = read_string(fd);
     if(strcmp(name, world_name))
     {
-        free(world_name);
         debugf("Incompatible world state (%s %s).\n", name, world_name);
+        free(world_name);
         return false;
     }
 
@@ -277,6 +305,9 @@ bool world_load(const char *fname, const struct roomdata_t *data, size_t data_sz
     }
 
     close(fd);
+
+    start_sim_callback();
+
     return true;
 }
 
@@ -385,6 +416,8 @@ void world_init(const struct roomdata_t *data, size_t sz, const char *name)
     }
 
     hash_free(dir_map);
+
+    start_sim_callback();
 }
 
 static void *verb_map = NULL;
diff --git a/src/world.h b/src/world.h
index 5dcd85d..4ce253e 100644
--- a/src/world.h
+++ b/src/world.h
@@ -41,10 +41,15 @@ extern size_t netcosm_obj_classes_sz;
 extern const struct roomdata_t *netcosm_world;
 extern size_t netcosm_world_sz;
 
+/* simulation callback */
+extern void (*netcosm_world_simulation_cb)(void);
+extern unsigned netcosm_world_simulation_interval;
+
 extern const char *netcosm_world_name;
 #endif
 
-/*** loads the world into RAM for the first time, resets the game state ***/
+/* loads the world into RAM for the first time, resets the game
+ * state */
 void world_init(const struct roomdata_t *data, size_t sz, const char *name);
 
 void world_save(const char *fname);