Merged in sandervrijders/ouroboros/be-pff (pull request #324)

lib, ipcpd: Add hashtable and PDU Forwarding Function

2 files changed, 51 insertions, 0 deletions

diff --git a/include/ouroboros/config.h.in b/include/ouroboros/config.h.in
index 122899f3..2417a5c0 100644
--- a/include/ouroboros/config.h.in
+++ b/include/ouroboros/config.h.in
@@ -51,6 +51,7 @@
 #define IPCPD_THREADPOOL_SIZE  3
 #define LOG_DIR                "/@LOG_DIR@/"
 #define PTHREAD_COND_CLOCK     CLOCK_MONOTONIC
+#define PFT_SIZE               1 << 12
 /* Timeout values */
 #define SHM_DU_TIMEOUT_MICROS  15000
 #define IRMD_ACCEPT_TIMEOUT    100
diff --git a/include/ouroboros/hashtable.h b/include/ouroboros/hashtable.h
new file mode 100644
index 00000000..8a6dde94
--- /dev/null
+++ b/include/ouroboros/hashtable.h
@@ -0,0 +1,50 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Hash table with integer keys with separate chaining on collisions
+ *
+ *    Sander Vrijders <[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.
+ */
+
+#ifndef OUROBOROS_HASHTABLE_H
+#define OUROBOROS_HASHTABLE_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+struct htable;
+
+/* Buckets is rounded up to the nearest power of 2 */
+struct htable * htable_create(uint64_t buckets,
+                              bool     hash_key);
+
+int             htable_destroy(struct htable * table);
+
+/* Passes ownership of the block of memory */
+int             htable_insert(struct htable * table,
+                              uint64_t        key,
+                              void *          val);
+
+/* The block of memory returned is no copy */
+void *          htable_lookup(struct htable * table,
+                              uint64_t        key);
+
+int             htable_delete(struct htable * table,
+                              uint64_t        key);
+
+#endif /* OUROBOROS_HASHTABLE_H */