From 3fa913274cd98e148113a27747ae755a15b3fc5b Mon Sep 17 00:00:00 2001
From: David Goulet <dgoulet@efficios.com>
Date: Tue, 21 Feb 2012 17:43:53 -0500
Subject: [PATCH] Add multiple FreeBSD compat layer

Adds clone, posix_fadvise and splice compatibility layer.

This commit ENOSYS those function for now and better implementation
will come in the future.

Signed-off-by: David Goulet <dgoulet@efficios.com>
---
 src/common/compat/clone.h        | 44 ++++++++++++++++++++++++++++++++
 src/common/compat/compat-fcntl.c | 29 +++++++++++++++++++++
 src/common/compat/mman.h         | 34 ++++++++++++++++++++++++
 3 files changed, 107 insertions(+)
 create mode 100644 src/common/compat/clone.h
 create mode 100644 src/common/compat/compat-fcntl.c
 create mode 100644 src/common/compat/mman.h

diff --git a/src/common/compat/clone.h b/src/common/compat/clone.h
new file mode 100644
index 000000000..45eb37982
--- /dev/null
+++ b/src/common/compat/clone.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com>
+ *
+ * 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; only version 2 of the License.
+ *
+ * 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., 59 Temple
+ * Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef _COMPAT_CLONE_H
+#define _COMPAT_CLONE_H
+
+#ifdef __linux__
+
+#include <sched.h>
+
+#elif __FreeBSD__
+
+#include <unistd.h>
+
+#define CLONE_FILES 0
+
+#define clone(fct_ptr, child_stack, flags, arg, args...) \
+	compat_clone(fct_ptr, child_stack, flags, arg)
+
+int compat_clone(int (*fn)(void *), void *child_stack, int flags,
+		void *arg)
+{
+	return -ENOSYS;
+}
+
+#else
+#error "Please add support for your OS into compat/clone.h."
+#endif /* __linux__ , __FreeBSD__ */
+
+#endif /* _COMPAT_CLONE_H */
diff --git a/src/common/compat/compat-fcntl.c b/src/common/compat/compat-fcntl.c
new file mode 100644
index 000000000..587df6782
--- /dev/null
+++ b/src/common/compat/compat-fcntl.c
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com>
+ *
+ * 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; only version 2 of the License.
+ *
+ * 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., 59 Temple
+ * Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#define _GNU_SOURCE
+#include <common/compat/fcntl.h>
+
+#ifdef __linux__
+
+int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
+		unsigned int flags)
+{
+	return sync_file_range(fd, offset, nbytes, flags);
+}
+
+#endif /* __linux__ */
diff --git a/src/common/compat/mman.h b/src/common/compat/mman.h
new file mode 100644
index 000000000..ede8c5883
--- /dev/null
+++ b/src/common/compat/mman.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com>
+ *
+ * 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; only version 2 of the License.
+ *
+ * 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., 59 Temple
+ * Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef _COMPAT_MMAN_H
+#define _COMPAT_MMAN_H
+
+#include <sys/mman.h>
+
+#ifdef __linux__
+
+#elif __FreeBSD__
+
+#define MAP_GROWSDOWN 0
+#define MAP_ANONYMOUS MAP_ANON
+
+#else
+#error "Please add support for your OS into compat/mman.h."
+#endif /* __linux__ , __FreeBSD__ */
+
+#endif /* _COMPAT_MMAN_H */
-- 
2.34.1