lib, irmd: Bind AP instances to AP_subsets

This call will allow grouping AP instances of a certain AP together
which are configured identically. Adds the bind operation to dev and
updates the applications to make use of this call. Flow_alloc is now
only called with the pid and doesn't send the apn anymore.

1 files changed, 115 insertions, 0 deletions

diff --git a/src/irmd/api_table.c b/src/irmd/api_table.c
new file mode 100644
index 00000000..b62b2b55
--- /dev/null
+++ b/src/irmd/api_table.c
@@ -0,0 +1,115 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * The IPC Resource Manager - Application Instance Table
+ *
+ *    Dimitri Staessens <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <ouroboros/config.h>
+#include <ouroboros/list.h>
+#include <ouroboros/errno.h>
+
+#include "api_table.h"
+
+#include <stdlib.h>
+
+struct api_entry * api_entry_create(pid_t api,
+                                    char * apn,
+                                    char * ap_subset)
+{
+        struct api_entry * e = malloc(sizeof(*e));
+        if (e == NULL)
+                return NULL;
+
+        INIT_LIST_HEAD(&e->next);
+
+        e->api = api;
+        e->apn = apn;
+        e->ap_subset = ap_subset;
+
+        return e;
+}
+
+void api_entry_destroy(struct api_entry * e)
+{
+        if (e->apn != NULL)
+                free(e->apn);
+        if (e->ap_subset != NULL)
+                free(e->ap_subset);
+        free(e);
+}
+
+int api_table_add_api(struct list_head * api_table,
+                      pid_t api, char * apn, char * ap_subset)
+{
+        if (apn == NULL)
+                return -EINVAL;
+
+        struct api_entry * e = api_entry_create(api, apn, ap_subset);
+        if (e == NULL)
+                return -ENOMEM;
+
+        list_add(&e->next, api_table);
+
+        return 0;
+}
+
+void api_table_del_api(struct list_head * api_table, pid_t api)
+{
+        struct list_head * p;
+        struct list_head * h;
+
+        list_for_each_safe(p, h, api_table) {
+                struct api_entry * e =
+                        list_entry(p, struct api_entry, next);
+
+                if (api == e->api) {
+                        list_del(&e->next);
+                        api_entry_destroy(e);
+                }
+        }
+}
+
+char * api_table_get_apn(struct list_head * api_table, pid_t api)
+{
+        struct list_head * h;
+
+        list_for_each(h, api_table) {
+                struct api_entry * e =
+                        list_entry(h, struct api_entry, next);
+
+                if (api == e->api)
+                        return e->apn;
+        }
+
+        return NULL;
+}
+char * api_table_get_ap_subset(struct list_head * api_table, pid_t api)
+{
+        struct list_head * h;
+
+        list_for_each(h, api_table) {
+                struct api_entry * e =
+                        list_entry(h, struct api_entry, next);
+
+                if (api == e->api)
+                        return e->ap_subset;
+        }
+
+        return NULL;
+}