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authorJakob Unterwurzacher2016-07-03 17:51:40 +0200
committerJakob Unterwurzacher2016-07-03 17:51:40 +0200
commitc9a472c12ff08a6481c086c791f3005e81dbbcf1 (patch)
treeb2a18a1482f15564ad91fec117b4b7953af218d4 /internal/syscallcompat/sys_darwin.go
parent0d5d6fc99bf84ff583e7ebf0283c4d0efe4245be (diff)
syscallcompat: move syscall wrapper to their own package
We will get more of them as OSX also lacks support for openat.
Diffstat (limited to 'internal/syscallcompat/sys_darwin.go')
-rw-r--r--internal/syscallcompat/sys_darwin.go12
1 files changed, 12 insertions, 0 deletions
diff --git a/internal/syscallcompat/sys_darwin.go b/internal/syscallcompat/sys_darwin.go
new file mode 100644
index 0000000..d437170
--- /dev/null
+++ b/internal/syscallcompat/sys_darwin.go
@@ -0,0 +1,12 @@
+package syscallcompat
+
+// prealloc - preallocate space without changing the file size. This prevents
+// us from running out of space in the middle of an operation.
+func Prealloc(fd int, off int64, len int64) (err error) {
+ //
+ // Sorry, fallocate is not available on OSX at all and
+ // fcntl F_PREALLOCATE is not accessible from Go.
+ //
+ // See https://github.com/rfjakob/gocryptfs/issues/18 if you want to help.
+ return nil
+}