diff options
Diffstat (limited to 'sys_util')
| -rw-r--r-- | sys_util/src/lib.rs | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/sys_util/src/lib.rs b/sys_util/src/lib.rs index 55861af..511ee7e 100644 --- a/sys_util/src/lib.rs +++ b/sys_util/src/lib.rs @@ -160,6 +160,16 @@ pub enum FallocateMode { ZeroRange, } +// TODO(dverkamp): Remove this once fallocate64 is available in libc. +extern { + pub fn fallocate64( + fd: libc::c_int, + mode: libc::c_int, + offset: libc::off64_t, + len: libc::off64_t + ) -> libc::c_int; +} + /// Safe wrapper for `fallocate()`. pub fn fallocate( file: &AsRawFd, @@ -168,16 +178,16 @@ pub fn fallocate( offset: u64, len: u64 ) -> Result<()> { - let offset = if offset > libc::off_t::max_value() as u64 { + let offset = if offset > libc::off64_t::max_value() as u64 { return Err(Error::new(libc::EINVAL)); } else { - offset as libc::off_t + offset as libc::off64_t }; - let len = if len > libc::off_t::max_value() as u64 { + let len = if len > libc::off64_t::max_value() as u64 { return Err(Error::new(libc::EINVAL)); } else { - len as libc::off_t + len as libc::off64_t }; let mut mode = match mode { @@ -191,7 +201,8 @@ pub fn fallocate( // Safe since we pass in a valid fd and fallocate mode, validate offset and len, // and check the return value. - let ret = unsafe { libc::fallocate(file.as_raw_fd(), mode, offset, len) }; + // TODO(dverkamp): Replace this with libc::fallocate64 once it is available. + let ret = unsafe { fallocate64(file.as_raw_fd(), mode, offset, len) }; if ret < 0 { errno_result() } else { |