thin-provisioning-tools/src/bin/cache_restore.rs
Ming-Hung Tsai cd48f00191 [all (rust)] Make sync-io the default
Multithreaded sync-io has performance similar to async-io. Also,
sync-io saves the hassle of setting ulimits to get io_uring working
on some systems (commit ba7fd7b). Now we default to sync-io, and
leave async-io as a hidden option for testing and benchmarking.
2021-06-23 14:33:28 +08:00

79 lines
2.2 KiB
Rust

extern crate clap;
extern crate thinp;
use atty::Stream;
use clap::{App, Arg};
use std::path::Path;
use std::process;
use std::process::exit;
use std::sync::Arc;
use thinp::cache::restore::{restore, CacheRestoreOptions};
use thinp::file_utils;
use thinp::report::*;
fn main() {
let parser = App::new("cache_restore")
.version(thinp::version::tools_version())
.about("Convert XML format metadata to binary.")
.arg(
Arg::with_name("ASYNC_IO")
.help("Force use of io_uring for synchronous io")
.long("async-io")
.hidden(true),
)
.arg(
Arg::with_name("OVERRIDE_MAPPING_ROOT")
.help("Specify a mapping root to use")
.long("override-mapping-root")
.value_name("OVERRIDE_MAPPING_ROOT")
.takes_value(true),
)
.arg(
Arg::with_name("INPUT")
.help("Specify the input xml")
.short("i")
.long("input")
.value_name("INPUT")
.required(true),
)
.arg(
Arg::with_name("OUTPUT")
.help("Specify the output device to check")
.short("o")
.long("output")
.value_name("OUTPUT")
.required(true),
);
let matches = parser.get_matches();
let input_file = Path::new(matches.value_of("INPUT").unwrap());
let output_file = Path::new(matches.value_of("OUTPUT").unwrap());
if !file_utils::file_exists(input_file) {
eprintln!("Couldn't find input file '{:?}'.", &input_file);
exit(1);
}
let report;
if matches.is_present("QUIET") {
report = std::sync::Arc::new(mk_quiet_report());
} else if atty::is(Stream::Stdout) {
report = std::sync::Arc::new(mk_progress_bar_report());
} else {
report = Arc::new(mk_simple_report());
}
let opts = CacheRestoreOptions {
input: &input_file,
output: &output_file,
async_io: matches.is_present("ASYNC_IO"),
report,
};
if let Err(reason) = restore(opts) {
println!("{}", reason);
process::exit(1);
}
}