Multiple services support in searpc server.

demo/demo-async-client.c

@@ -77,7 +77,7 @@ static void
 strlen_callback(void *vresult, void *user_data, GError *error)
 {
     const char *str = user_data;
-    int len = (int)(long)vresult;
+    int len = *((int *)vresult);
     
     g_assert (strcmp(str, "user data") == 0);
     printf("the length of string 'hello searpc' is %d.\n", len);

demo/searpc-demo-server.c

@@ -29,13 +29,15 @@ static void
 start_rpc_service(void)
 {
     searpc_server_init();
+    searpc_create_service("searpc-demo");
 
     /* The first parameter is the implementation function.
      * The second parameter is the name of the rpc function the 
      * client would call.
      * The third parameter is the signature.
      */
-    searpc_server_register_function(searpc_strlen,
+    searpc_server_register_function("searpc-demo",
+                                    searpc_strlen,
                                     "searpc_strlen",
                                     searpc_signature_int__string());
 }
@@ -106,7 +108,7 @@ main(int argc, char *argv[])
         gsize ret_len;
         int fcall_len = ntohs(pac->length);
         /* Execute the RPC function */
-        char *res = searpc_server_call_function (pac->data, fcall_len,
+        char *res = searpc_server_call_function ("searpc-demo", pac->data, fcall_len,
                                                  &ret_len, &error);
 
         pac_ret = (packet *)buf;

lib/searpc-server.c

@@ -27,6 +27,13 @@ typedef struct FuncItem {
     MarshalItem *marshal;
 } FuncItem;
 
+typedef struct {
+    char *name;
+    GHashTable *func_table;
+} SearpcService;
+
+static GHashTable *marshal_table;
+static GHashTable *service_table;
 
 static void
 func_item_free (FuncItem *item)
@@ -42,9 +49,42 @@ marshal_item_free (MarshalItem *item)
     g_free (item);
 }
 
-static GHashTable *marshal_table;
-static GHashTable *func_table;
+int
+searpc_create_service (const char *svc_name)
+{
+    SearpcService *service;
 
+    if (!svc_name)
+        return -1;
+
+    if (g_hash_table_lookup (service_table, svc_name) != NULL)
+        return 0;
+
+    service = g_new0 (SearpcService, 1);
+    service->name = g_strdup(svc_name);
+    service->func_table = g_hash_table_new_full (g_str_hash, g_str_equal, 
+                                                 NULL, (GDestroyNotify)func_item_free);
+
+    g_hash_table_insert (service_table, service->name, service);
+
+    return 0;
+}
+
+static void
+service_free (SearpcService *service)
+{
+    g_free (service->name);
+    g_hash_table_destroy (service->func_table);
+    g_free (service);
+}
+
+void
+searpc_remove_service (const char *svc_name)
+{
+    if (!svc_name)
+        return;
+    g_hash_table_remove (service_table, svc_name);
+}
 
 /* Marshal functions */
 static inline void
@@ -124,10 +164,10 @@ marshal_set_ret_common (JsonObject *object, gsize *len, GError *error)
 void
 searpc_server_init ()
 {
-    func_table = g_hash_table_new_full (g_str_hash, g_str_equal, 
-                                        NULL, (GDestroyNotify)func_item_free);
     marshal_table = g_hash_table_new_full (g_str_hash, g_str_equal,
                                            NULL, (GDestroyNotify)marshal_item_free);
+    service_table = g_hash_table_new_full (g_str_hash, g_str_equal,
+                                           NULL, (GDestroyNotify)service_free);
 
     /* register buildin marshal functions */
     register_marshals(marshal_table);
@@ -136,7 +176,7 @@ searpc_server_init ()
 void
 searpc_server_final()
 {
-    g_hash_table_destroy (func_table);
+    g_hash_table_destroy (service_table);
     g_hash_table_destroy (marshal_table);
 }
 
@@ -162,12 +202,18 @@ searpc_server_register_marshal (gchar *signature, SearpcMarshalFunc marshal)
 }
 
 gboolean 
-searpc_server_register_function (void *func, const gchar *fname, gchar *signature)
+searpc_server_register_function (const char *svc_name,
+                                 void *func, const gchar *fname, gchar *signature)
 {
+    SearpcService *service;
     FuncItem *item;
     MarshalItem *mitem;
 
-    g_assert (func != NULL && fname != NULL && signature != NULL);
+    g_assert (svc_name != NULL && func != NULL && fname != NULL && signature != NULL);
+
+    service = g_hash_table_lookup (service_table, svc_name);
+    if (!service)
+        return FALSE;
 
     mitem = g_hash_table_lookup (marshal_table, signature);
     if (!mitem) {
@@ -180,7 +226,7 @@ searpc_server_register_function (void *func, const gchar *fname, gchar *signatur
     item->fname = g_strdup(fname);
     item->func = func;
 
-    g_hash_table_insert (func_table, (gpointer)item->fname, item);
+    g_hash_table_insert (service->func_table, (gpointer)item->fname, item);
 
     g_free (signature);
     return TRUE;
@@ -188,8 +234,10 @@ searpc_server_register_function (void *func, const gchar *fname, gchar *signatur
 
 /* Called by RPC transport. */
 gchar* 
-searpc_server_call_function (gchar *func, gsize len, gsize *ret_len, GError **error)
+searpc_server_call_function (const char *svc_name,
+                             gchar *func, gsize len, gsize *ret_len, GError **error)
 {
+    SearpcService *service;
     JsonParser *parser;
     JsonNode *root;
     JsonArray *array;
@@ -200,6 +248,13 @@ searpc_server_call_function (gchar *func, gsize len, gsize *ret_len, GError **er
 #endif
 
     g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+
+    service = g_hash_table_lookup (service_table, svc_name);
+    if (!service) {
+        g_warning ("[SeaRPC] cannot find service %s.\n", svc_name);
+        g_set_error (error, 0, 501, "cannot find service %s.", svc_name);
+        return NULL;
+    }
           
     parser = json_parser_new ();
     
@@ -213,7 +268,7 @@ searpc_server_call_function (gchar *func, gsize len, gsize *ret_len, GError **er
     array = json_node_get_array (root);
 
     const char *fname = json_array_get_string_element(array, 0);
-    FuncItem *fitem = g_hash_table_lookup(func_table, fname);
+    FuncItem *fitem = g_hash_table_lookup(service->func_table, fname);
     if (!fitem) {
         g_warning ("[SeaRPC] cannot find function %s.\n", fname);
         g_set_error (error, 0, 500, "cannot find function %s.", fname); 

lib/searpc-server.h

@@ -22,6 +22,23 @@ void searpc_server_init ();
  */
 void searpc_server_final ();
 
+/**
+ * searpc_create_service:
+ *
+ * Create a new service. Service is a set of functions.
+ * The new service will be registered to the server.
+ *
+ * @svc_name: Service name.
+ */
+int searpc_create_service (const char *svc_name);
+
+/**
+ * searpc_remove_service:
+ *
+ * Remove the service from the server.
+ */
+void searpc_remove_service (const char *svc_name);
+
 /**
  * searpc_server_register_marshal:
  *
@@ -36,26 +53,29 @@ gboolean searpc_server_register_marshal (gchar *signature,
 /**
  * searpc_server_register_function:
  *
- * Register a rpc function with given signature.
- * 
+ * Register a rpc function with given signature to a service.
+ *
  * @signature: the signature of the function, register_function() will take
  * owner of this string.
  */
-gboolean searpc_server_register_function (void* func,
+gboolean searpc_server_register_function (const char *service,
+                                          void* func,
                                           const gchar *fname,
                                           gchar *signature);
 
 /**
  * searpc_server_call_function:
+ * @service: service name.
  * @func: the serialized representation of the function to call.
  * @len: length of @func.
  * @ret_len: the length of the returned string.
  *
- * Call a registered function @func.
+ * Call a registered function @func of a service.
  *
  * Returns the serialized representatio of the returned value.
  */
-gchar *searpc_server_call_function (gchar *func, gsize len, gsize *ret_len,
+gchar *searpc_server_call_function (const char *service,
+                                    gchar *func, gsize len, gsize *ret_len,
                                     GError **error);
 
 /**

tests/test-searpc.c

@@ -172,7 +172,7 @@ void test_simple_call (void *fixture, const void *data)
 
     fcall = searpc_client_fcall__string_int ("get_substring", "hello", 2,
                                              &fcall_len);
-    fret = searpc_server_call_function (fcall, fcall_len, &ret_len, &error);
+    fret = searpc_server_call_function ("test", fcall, fcall_len, &ret_len, &error);
     g_assert (error == NULL);
     result = searpc_client_fret__string (fret, ret_len, &error);
     g_assert (strcmp(result, "he") == 0);
@@ -184,7 +184,7 @@ void test_simple_call (void *fixture, const void *data)
     result = NULL;
     fcall = searpc_client_fcall__string_int ("get_substring", "hello", 7,
                                              &fcall_len);
-    fret = searpc_server_call_function (fcall, fcall_len, &ret_len, &error);
+    fret = searpc_server_call_function ("test", fcall, fcall_len, &ret_len, &error);
     g_assert (error == NULL);
     result = searpc_client_fret__string (fret, ret_len, &error);
     g_assert (error->message);
@@ -208,7 +208,7 @@ void test_object_call (void *fixture, const void *data)
 
     fcall = searpc_client_fcall__string ("get_maman_bar", "kitty",
                                          &fcall_len);
-    fret = searpc_server_call_function (fcall, fcall_len, &ret_len, &error);
+    fret = searpc_server_call_function ("test", fcall, fcall_len, &ret_len, &error);
     g_assert (error == NULL);
     result = searpc_client_fret__object (MAMAN_TYPE_BAR, fret, ret_len, &error);
 
@@ -254,7 +254,7 @@ void test_objlist_call (void *fixture, const void *data)
 
     fcall = searpc_client_fcall__string_int ("get_maman_bar_list", "kitty", 10,
                                              &fcall_len);
-    fret = searpc_server_call_function (fcall, fcall_len, &ret_len, &error);
+    fret = searpc_server_call_function ("test", fcall, fcall_len, &ret_len, &error);
     g_assert (error == NULL);
     result = searpc_client_fret__objlist (MAMAN_TYPE_BAR, fret, ret_len, &error);
     g_free (fcall);
@@ -266,7 +266,7 @@ void test_objlist_call (void *fixture, const void *data)
 
     fcall = searpc_client_fcall__string_int ("get_maman_bar_list", "kitty", 0,
                                              &fcall_len);
-    fret = searpc_server_call_function (fcall, fcall_len, &ret_len, &error);
+    fret = searpc_server_call_function ("test", fcall, fcall_len, &ret_len, &error);
     g_assert (error == NULL);
     result = searpc_client_fret__objlist (MAMAN_TYPE_BAR, fret, ret_len, &error);
     g_free (fcall);
@@ -284,11 +284,12 @@ main (int argc, char *argv[])
     g_test_init (&argc, &argv, NULL);
 
     searpc_server_init ();
-    searpc_server_register_function (get_substring, "get_substring", 
+    searpc_create_service ("test");
+    searpc_server_register_function ("test", get_substring, "get_substring", 
                                      searpc_signature_string__string_int());
-    searpc_server_register_function (get_maman_bar, "get_maman_bar", 
+    searpc_server_register_function ("test", get_maman_bar, "get_maman_bar", 
                                      searpc_signature_object__string());
-    searpc_server_register_function (get_maman_bar_list, "get_maman_bar_list", 
+    searpc_server_register_function ("test", get_maman_bar_list, "get_maman_bar_list", 
                                      searpc_signature_objlist__string_int());
 
     g_test_add ("/searpc/simple", void, NULL,