1 files changed, 97 insertions, 0 deletions
diff --git a/src/ipcpd/shim-data.h b/src/ipcpd/shim-data.h
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+++ b/src/ipcpd/shim-data.h
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+/*
+ * Ouroboros - Copyright (C) 2016 - 2017
+ *
+ * Utitilies for building IPC processes
+ *
+ *    Dimitri Staessens <dimitri.staessens@intec.ugent.be>
+ *    Sander Vrijders   <sander.vrijders@intec.ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#ifndef IPCPD_IPCP_DATA_H
+#define IPCPD_IPCP_DATA_H
+
+#include <ouroboros/shared.h>
+#include <ouroboros/list.h>
+
+#include <sys/types.h>
+#include <pthread.h>
+#include <stdint.h>
+
+
+enum dir_query_state {
+        QUERY_INIT = 0,
+        QUERY_PENDING,
+        QUERY_RESPONSE,
+        QUERY_DONE,
+        QUERY_DESTROY
+};
+
+struct dir_query {
+        struct list_head     next;
+        char *               name;
+        enum dir_query_state state;
+
+        pthread_mutex_t      lock;
+        pthread_cond_t       cond;
+};
+
+struct shim_data {
+        struct list_head    registry;
+        pthread_rwlock_t    reg_lock;
+
+        struct list_head    directory;
+        pthread_rwlock_t    dir_lock;
+
+        struct list_head    dir_queries;
+        pthread_mutex_t     dir_queries_lock;
+};
+
+struct shim_data * shim_data_create(void);
+
+void               shim_data_destroy(struct shim_data * data);
+
+int                shim_data_reg_add_entry(struct shim_data * data,
+                                           char *             name);
+
+int                shim_data_reg_del_entry(struct shim_data * data,
+                                           const char *       name);
+
+bool               shim_data_reg_has(struct shim_data * data,
+                                     const char *       name);
+
+int                shim_data_dir_add_entry(struct shim_data * data,
+                                           char *             name,
+                                           uint64_t           addr);
+
+int                shim_data_dir_del_entry(struct shim_data * data,
+                                           const char *       name,
+                                           uint64_t           addr);
+
+bool               shim_data_dir_has(struct shim_data * data,
+                                     const char *       name);
+
+uint64_t           shim_data_dir_get_addr(struct shim_data * data,
+                                          const char *       name);
+
+struct dir_query * shim_data_dir_query_create(char * name);
+
+void               shim_data_dir_query_respond(struct dir_query * query);
+
+void               shim_data_dir_query_destroy(struct dir_query * query);
+
+int                shim_data_dir_query_wait(struct dir_query *      query,
+                                            const struct timespec * timeout);
+#endif /* IPCPD_SHIM_DATA_H */