1 files changed, 56 insertions, 0 deletions
diff --git a/tileserver/cdb.h b/tileserver/cdb.h
new file mode 100644
index 000000000..b48e89845
--- /dev/null
+++ b/tileserver/cdb.h
@@ -0,0 +1,56 @@
+/*
+ * cdb.h:
+ * Interface to Dan-Bernstein-style CDB files.
+ *
+ * Copyright (c) 2006 UK Citizens Online Democracy. All rights reserved.
+ * Email: chris@mysociety.org; WWW: http://www.mysociety.org/
+ *
+ * $Id: cdb.h,v 1.1 2006-09-19 18:26:35 chris Exp $
+ *
+ */
+
+#ifndef __CDB_H_ /* include guard */
+#define __CDB_H_
+
+#include <sys/types.h>
+#include <stdint.h>
+
+typedef int cdb_result_t;
+typedef uint32_t cdb_hash_t;
+
+typedef struct cdb_datum {
+    void *cd_buf;
+    size_t cd_len;
+} *cdb_datum;
+
+typedef struct cdb *cdb;
+
+/* error codes */
+#define CDB_OUT_OF_MEMORY       -1
+#define CDB_FILE_TOO_SMALL      -2
+#define CDB_FILE_TOO_BIG        -3
+#define CDB_FILE_TRUNCATED      -4
+    /* one of the initial 256 pointers pointed outside the file */
+#define CDB_BAD_HASHLOC_PTR     -5
+    /* a datum pointer pointed outside the file or otherwise somewhere bogus */
+#define CDB_BAD_RECORD_PTR      -6
+    /* the record wasn't found */
+#define CDB_NOT_FOUND           -7
+
+#ifndef CDB_IMPL
+extern
+#endif /* CDB_IMPL */
+    cdb_result_t cdb_errno;     /* XXX threads */
+
+/* cdb.c */
+cdb_hash_t cdb_hash(const unsigned char *buf, const size_t len);
+cdb_hash_t cdb_hashz(const char *s);
+cdb_hash_t cdb_hash_datum(const cdb_datum d);
+cdb cdb_open_fp(FILE *fp);
+cdb_datum cdb_datum_alloc(const size_t len);
+void cdb_datum_free(cdb_datum d);
+cdb cdb_open(const char *name);
+cdb_datum cdb_get(cdb C, const cdb_datum key);
+char *cdb_strerror(const cdb_result_t e);
+
+#endif /* __CDB_H_ */