1321c234e5
* Remove dependency on `more-asserts` In my recent adventures to do a bit of gardening on our dependencies I noticed that there's a new major version for the `more-asserts` crate. Instead of updating to this though I've opted to instead remove the dependency since I don't think we heavily lean on this crate and otherwise one-off prints are probably sufficient to avoid the need for pulling in a whole crate for this. * Remove exemption for `more-asserts`
76 lines
2.3 KiB
Rust
76 lines
2.3 KiB
Rust
use std::{env, process};
|
|
use wasi_tests::{open_scratch_directory, TESTCONFIG};
|
|
|
|
unsafe fn test_fd_advise(dir_fd: wasi::Fd) {
|
|
// Create a file in the scratch directory.
|
|
let file_fd = wasi::path_open(
|
|
dir_fd,
|
|
0,
|
|
"file",
|
|
wasi::OFLAGS_CREAT,
|
|
wasi::RIGHTS_FD_READ
|
|
| wasi::RIGHTS_FD_WRITE
|
|
| wasi::RIGHTS_FD_ADVISE
|
|
| wasi::RIGHTS_FD_FILESTAT_GET
|
|
| wasi::RIGHTS_FD_FILESTAT_SET_SIZE
|
|
| wasi::RIGHTS_FD_ALLOCATE,
|
|
0,
|
|
0,
|
|
)
|
|
.expect("failed to open file");
|
|
assert!(
|
|
file_fd > libc::STDERR_FILENO as wasi::Fd,
|
|
"file descriptor range check",
|
|
);
|
|
|
|
// Check file size
|
|
let stat = wasi::fd_filestat_get(file_fd).expect("failed to fdstat");
|
|
assert_eq!(stat.size, 0, "file size should be 0");
|
|
|
|
// set_size it bigger
|
|
wasi::fd_filestat_set_size(file_fd, 100).expect("setting size");
|
|
|
|
let stat = wasi::fd_filestat_get(file_fd).expect("failed to fdstat 2");
|
|
assert_eq!(stat.size, 100, "file size should be 100");
|
|
|
|
// Advise the kernel
|
|
wasi::fd_advise(file_fd, 10, 50, wasi::ADVICE_NORMAL).expect("failed advise");
|
|
|
|
// Advise shouldnt change size
|
|
let stat = wasi::fd_filestat_get(file_fd).expect("failed to fdstat 3");
|
|
assert_eq!(stat.size, 100, "file size should be 100");
|
|
|
|
if TESTCONFIG.support_fd_allocate() {
|
|
// Use fd_allocate to expand size to 200:
|
|
wasi::fd_allocate(file_fd, 100, 100).expect("allocating size");
|
|
|
|
let stat = wasi::fd_filestat_get(file_fd).expect("failed to fdstat 3");
|
|
assert_eq!(stat.size, 200, "file size should be 200");
|
|
}
|
|
|
|
wasi::fd_close(file_fd).expect("failed to close");
|
|
wasi::path_unlink_file(dir_fd, "file").expect("failed to unlink");
|
|
}
|
|
fn main() {
|
|
let mut args = env::args();
|
|
let prog = args.next().unwrap();
|
|
let arg = if let Some(arg) = args.next() {
|
|
arg
|
|
} else {
|
|
eprintln!("usage: {} <scratch directory>", prog);
|
|
process::exit(1);
|
|
};
|
|
|
|
// Open scratch directory
|
|
let dir_fd = match open_scratch_directory(&arg) {
|
|
Ok(dir_fd) => dir_fd,
|
|
Err(err) => {
|
|
eprintln!("{}", err);
|
|
process::exit(1)
|
|
}
|
|
};
|
|
|
|
// Run the tests.
|
|
unsafe { test_fd_advise(dir_fd) }
|
|
}
|