diff options
Diffstat (limited to 'test/sys/test_uio.rs')
| -rw-r--r-- | test/sys/test_uio.rs | 98 |
1 files changed, 62 insertions, 36 deletions
diff --git a/test/sys/test_uio.rs b/test/sys/test_uio.rs index fc2dfabe..f46b1940 100644 --- a/test/sys/test_uio.rs +++ b/test/sys/test_uio.rs @@ -1,18 +1,18 @@ use nix::sys::uio::*; use nix::unistd::*; -use rand::{thread_rng, Rng}; use rand::distributions::Alphanumeric; -use std::{cmp, iter}; -use std::fs::{OpenOptions}; +use rand::{thread_rng, Rng}; +use std::fs::OpenOptions; use std::io::IoSlice; use std::os::unix::io::AsRawFd; +use std::{cmp, iter}; #[cfg(not(target_os = "redox"))] use std::io::IoSliceMut; +use tempfile::tempdir; #[cfg(not(target_os = "redox"))] use tempfile::tempfile; -use tempfile::tempdir; #[test] fn test_writev() { @@ -31,8 +31,12 @@ fn test_writev() { let mut consumed = 0; while consumed < to_write.len() { let left = to_write.len() - consumed; - let slice_len = if left <= 64 { left } else { thread_rng().gen_range(64..cmp::min(256, left)) }; - let b = &to_write[consumed..consumed+slice_len]; + let slice_len = if left <= 64 { + left + } else { + thread_rng().gen_range(64..cmp::min(256, left)) + }; + let b = &to_write[consumed..consumed + slice_len]; iovecs.push(IoSlice::new(b)); consumed += slice_len; } @@ -65,7 +69,7 @@ fn test_writev() { #[test] #[cfg(not(target_os = "redox"))] fn test_readv() { - let s:String = thread_rng() + let s: String = thread_rng() .sample_iter(&Alphanumeric) .map(char::from) .take(128) @@ -75,7 +79,11 @@ fn test_readv() { let mut allocated = 0; while allocated < to_write.len() { let left = to_write.len() - allocated; - let vec_len = if left <= 64 { left } else { thread_rng().gen_range(64..cmp::min(256, left)) }; + let vec_len = if left <= 64 { + left + } else { + thread_rng().gen_range(64..cmp::min(256, left)) + }; let v: Vec<u8> = iter::repeat(0u8).take(vec_len).collect(); storage.push(v); allocated += vec_len; @@ -117,12 +125,12 @@ fn test_pwrite() { use std::io::Read; let mut file = tempfile().unwrap(); - let buf = [1u8;8]; + let buf = [1u8; 8]; assert_eq!(Ok(8), pwrite(file.as_raw_fd(), &buf, 8)); let mut file_content = Vec::new(); file.read_to_end(&mut file_content).unwrap(); - let mut expected = vec![0u8;8]; - expected.extend(vec![1;8]); + let mut expected = vec![0u8; 8]; + expected.extend(vec![1; 8]); assert_eq!(file_content, expected); } @@ -133,12 +141,17 @@ fn test_pread() { let tempdir = tempdir().unwrap(); let path = tempdir.path().join("pread_test_file"); - let mut file = OpenOptions::new().write(true).read(true).create(true) - .truncate(true).open(path).unwrap(); + let mut file = OpenOptions::new() + .write(true) + .read(true) + .create(true) + .truncate(true) + .open(path) + .unwrap(); let file_content: Vec<u8> = (0..64).collect(); file.write_all(&file_content).unwrap(); - let mut buf = [0u8;16]; + let mut buf = [0u8; 16]; assert_eq!(Ok(16), pread(file.as_raw_fd(), &mut buf, 16)); let expected: Vec<_> = (16..32).collect(); assert_eq!(&buf[..], &expected[..]); @@ -150,7 +163,7 @@ fn test_pwritev() { use std::io::Read; let to_write: Vec<u8> = (0..128).collect(); - let expected: Vec<u8> = [vec![0;100], to_write.clone()].concat(); + let expected: Vec<u8> = [vec![0; 100], to_write.clone()].concat(); let iovecs = [ IoSlice::new(&to_write[0..17]), @@ -162,8 +175,13 @@ fn test_pwritev() { // pwritev them into a temporary file let path = tempdir.path().join("pwritev_test_file"); - let mut file = OpenOptions::new().write(true).read(true).create(true) - .truncate(true).open(path).unwrap(); + let mut file = OpenOptions::new() + .write(true) + .read(true) + .create(true) + .truncate(true) + .open(path) + .unwrap(); let written = pwritev(file.as_raw_fd(), &iovecs, 100).ok().unwrap(); assert_eq!(written, to_write.len()); @@ -186,20 +204,23 @@ fn test_preadv() { let path = tempdir.path().join("preadv_test_file"); - let mut file = OpenOptions::new().read(true).write(true).create(true) - .truncate(true).open(path).unwrap(); + let mut file = OpenOptions::new() + .read(true) + .write(true) + .create(true) + .truncate(true) + .open(path) + .unwrap(); file.write_all(&to_write).unwrap(); - let mut buffers: Vec<Vec<u8>> = vec![ - vec![0; 24], - vec![0; 1], - vec![0; 75], - ]; + let mut buffers: Vec<Vec<u8>> = vec![vec![0; 24], vec![0; 1], vec![0; 75]]; { // Borrow the buffers into IoVecs and preadv into them - let mut iovecs: Vec<_> = buffers.iter_mut().map( - |buf| IoSliceMut::new(&mut buf[..])).collect(); + let mut iovecs: Vec<_> = buffers + .iter_mut() + .map(|buf| IoSliceMut::new(&mut buf[..])) + .collect(); assert_eq!(Ok(100), preadv(file.as_raw_fd(), &mut iovecs, 100)); } @@ -208,14 +229,15 @@ fn test_preadv() { } #[test] -#[cfg(all(target_os = "linux", not(target_env = "uclibc")))] // uclibc doesn't implement process_vm_readv +#[cfg(all(target_os = "linux", not(target_env = "uclibc")))] +// uclibc doesn't implement process_vm_readv // qemu-user doesn't implement process_vm_readv/writev on most arches #[cfg_attr(qemu, ignore)] fn test_process_vm_readv() { - use nix::unistd::ForkResult::*; + use crate::*; use nix::sys::signal::*; use nix::sys::wait::*; - use crate::*; + use nix::unistd::ForkResult::*; require_capability!("test_process_vm_readv", CAP_SYS_PTRACE); let _m = crate::FORK_MTX.lock(); @@ -225,7 +247,7 @@ fn test_process_vm_readv() { let mut vector = vec![1u8, 2, 3, 4, 5]; let (r, w) = pipe().unwrap(); - match unsafe{fork()}.expect("Error: Fork Failed") { + match unsafe { fork() }.expect("Error: Fork Failed") { Parent { child } => { close(w).unwrap(); // wait for child @@ -236,16 +258,18 @@ fn test_process_vm_readv() { let remote_iov = RemoteIoVec { base: ptr, len: 5 }; let mut buf = vec![0u8; 5]; - let ret = process_vm_readv(child, - &mut [IoSliceMut::new(&mut buf)], - &[remote_iov]); + let ret = process_vm_readv( + child, + &mut [IoSliceMut::new(&mut buf)], + &[remote_iov], + ); kill(child, SIGTERM).unwrap(); waitpid(child, None).unwrap(); assert_eq!(Ok(5), ret); assert_eq!(20u8, buf.iter().sum()); - }, + } Child => { let _ = close(r); for i in &mut vector { @@ -253,7 +277,9 @@ fn test_process_vm_readv() { } let _ = write(w, b"\0"); let _ = close(w); - loop { pause(); } - }, + loop { + pause(); + } + } } } |