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Added command line parameter for specifying resuming image.

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This commit is contained in:
losfair 2019-06-27 01:29:10 +08:00
parent f048dc2ff6
commit 15e1ac0c1d
1 changed files with 12 additions and 1 deletions
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13
src/bin/wasmer.rs
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@ -111,6 +111,10 @@ struct Run {
)]
loader: Option<LoaderName>,
#[cfg(feature = "backend:singlepass")]
#[structopt(long = "resume")]
resume: Option<String>,
#[structopt(long = "command-name", hidden = true)]
command_name: Option<String>,
@ -531,7 +535,14 @@ fn execute_wasm(options: &Run) -> Result<(), String> {
let start_raw: extern "C" fn(&mut Ctx) =
::std::mem::transmute(start.get_vm_func());
let mut image: Option<InstanceImage> = None;
let mut image: Option<InstanceImage> = if let Some(ref path) = options.resume {
let mut f = File::open(path).unwrap();
let mut out: Vec<u8> = vec![];
f.read_to_end(&mut out).unwrap();
Some(InstanceImage::from_bytes(&out).expect("failed to decode image"))
} else {
None
};
loop {
let ret = if let Some(image) = image.take() {
let msm = instance