* autoload.cc (NtSetInformationFile): Define.

	* cygwin.din: Export posix_fadvise and posix_fallocate.
	* fhandler.cc (fhandler_base::fadvise): New method.
	(fhandler_base::ftruncate): Add allow_truncate parameter.
	* fhandler.h (class fhandler_base): Add fadvise method.  Accomodate
	new parameter to ftruncate.
	(class fhandler_pipe): Add fadvise and ftruncate methods.
	(class fhandler_disk_file): Add fadvise method.  Accomodate new
	parameter to ftruncate.
	* fhandler_disk_file.cc (fhandler_disk_file::fadvise): New method.
	(fhandler_disk_file::ftruncate): Accomodate new allow_truncate
	parameter.  Set EOF using NtSetInformationFile on NT.
	* ntdll.h (struct _FILE_END_OF_FILE_INFORMATION): Define.
	(NtSetInformationFile): Declare.
	* pipe.cc (fhandler_pipe::fadvise): New method.
	(fhandler_pipe::ftruncate): Ditto.
	* syscalls.cc (posix_fadvise): New function.
	(posix_fallocate): Ditto.
	(ftruncate64): Accomodate second parameter to fhandler's ftruncate
	method.
	* include/fcntl.h: Add POSIX_FADV_* flags.  Add declarations of
	posix_fadvise and posix_fallocate.
	* include/cygwin/version.h: Bump API minor number.

1 files changed, 14 insertions, 0 deletions

diff --git a/winsup/cygwin/pipe.cc b/winsup/cygwin/pipe.cc
index a6171f2f9..d56b32aff 100644
--- a/winsup/cygwin/pipe.cc
+++ b/winsup/cygwin/pipe.cc
@@ -151,6 +151,20 @@ fhandler_pipe::lseek (_off64_t offset, int whence)
   return -1;
 }
 
+int
+fhandler_pipe::fadvise (_off64_t offset, _off64_t length, int advice)
+{
+  set_errno (ESPIPE);
+  return -1;
+}
+
+int
+fhandler_pipe::ftruncate (_off64_t length, bool allow_truncate)
+{
+  set_errno (allow_truncate ? EINVAL : ESPIPE);
+  return -1;
+}
+
 void
 fhandler_pipe::set_close_on_exec (bool val)
 {