Move db_drivers/ to external/

Also change LMDB Cmake variables to CACHE rather than upgrading them
through several parent scopes.

1 files changed, 82 insertions, 0 deletions

diff --git a/external/db_drivers/liblmdb64/mdb_copy.c b/external/db_drivers/liblmdb64/mdb_copy.c
new file mode 100644
index 000000000..af0a94111
--- /dev/null
+++ b/external/db_drivers/liblmdb64/mdb_copy.c
@@ -0,0 +1,82 @@
+/* mdb_copy.c - memory-mapped database backup tool */
+/*
+ * Copyright 2012 Howard Chu, Symas Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+#ifdef _WIN32
+#include <windows.h>
+#define	MDB_STDOUT	GetStdHandle(STD_OUTPUT_HANDLE)
+#else
+#define	MDB_STDOUT	1
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include "lmdb.h"
+
+static void
+sighandle(int sig)
+{
+}
+
+int main(int argc,char * argv[])
+{
+	int rc;
+	MDB_env *env;
+	const char *progname = argv[0], *act;
+	unsigned flags = MDB_RDONLY;
+	unsigned cpflags = 0;
+
+	for (; argc > 1 && argv[1][0] == '-'; argc--, argv++) {
+		if (argv[1][1] == 'n' && argv[1][2] == '\0')
+			flags |= MDB_NOSUBDIR;
+		else if (argv[1][1] == 'c' && argv[1][2] == '\0')
+			cpflags |= MDB_CP_COMPACT;
+		else if (argv[1][1] == 'V' && argv[1][2] == '\0') {
+			printf("%s\n", MDB_VERSION_STRING);
+			exit(0);
+		} else
+			argc = 0;
+	}
+
+	if (argc<2 || argc>3) {
+		fprintf(stderr, "usage: %s [-V] [-c] [-n] srcpath [dstpath]\n", progname);
+		exit(EXIT_FAILURE);
+	}
+
+#ifdef SIGPIPE
+	signal(SIGPIPE, sighandle);
+#endif
+#ifdef SIGHUP
+	signal(SIGHUP, sighandle);
+#endif
+	signal(SIGINT, sighandle);
+	signal(SIGTERM, sighandle);
+
+	act = "opening environment";
+	rc = mdb_env_create(&env);
+	if (rc == MDB_SUCCESS) {
+		rc = mdb_env_open(env, argv[1], flags, 0600);
+	}
+	if (rc == MDB_SUCCESS) {
+		act = "copying";
+		if (argc == 2)
+			rc = mdb_env_copyfd2(env, MDB_STDOUT, cpflags);
+		else
+			rc = mdb_env_copy2(env, argv[2], cpflags);
+	}
+	if (rc)
+		fprintf(stderr, "%s: %s failed, error %d (%s)\n",
+			progname, act, rc, mdb_strerror(rc));
+	mdb_env_close(env);
+
+	return rc ? EXIT_FAILURE : EXIT_SUCCESS;
+}