Check for linux/falloc.h header file.

[rsync/rsync.git] / rsync.h

diff --git a/rsync.h b/rsync.h
index ed60005..84d1287 100644 (file)
--- a/rsync.h
+++ b/rsync.h
@@ -103,7 +103,7 @@
 /* This is used when working on a new protocol version in CVS, and should
  * be a new non-zero value for each CVS change that affects the protocol.
  * It must ALWAYS be 0 when the protocol goes final (and NEVER before)! */
-#define SUBPROTOCOL_VERSION 12
+#define SUBPROTOCOL_VERSION 13
 
 /* We refuse to interoperate with versions that are not in this range.
  * Note that we assume we'll work with later versions: the onus is on
@@ -665,6 +665,23 @@ struct ht_int64_node {
 #define ACLS_NEED_MASK 1
 #endif
 
+#if defined HAVE_FALLOCATE || HAVE_SYS_FALLOCATE
+#ifdef HAVE_LINUX_FALLOC_H
+#include <linux/falloc.h>
+#endif
+#ifdef FALLOC_FL_KEEP_SIZE
+#define SUPPORT_PREALLOCATION 1
+#elif defined HAVE_FTRUNCATE
+#define SUPPORT_PREALLOCATION 1
+#define PREALLOCATE_NEEDS_TRUNCATE 1
+#endif
+#else /* !fallocate */
+#if defined HAVE_EFFICIENT_POSIX_FALLOCATE && defined HAVE_FTRUNCATE
+#define SUPPORT_PREALLOCATION 1
+#define PREALLOCATE_NEEDS_TRUNCATE 1
+#endif
+#endif
+
 union file_extras {
        int32 num;
        uint32 unum;