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add naive wasm32 support using extern date_now() #284

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add naive wasm32 support using extern date_now() #284

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8 changes: 7 additions & 1 deletion src/jitter.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -700,10 +700,16 @@ mod platform {

#[cfg(all(target_arch = "wasm32", not(target_os = "emscripten")))]
pub fn get_nstime() -> u64 {
unreachable!()
(unsafe { date_now() } as u64)
}

extern {
pub fn date_now() -> u32;
}
}



// A function that is opaque to the optimizer to assist in avoiding dead-code
// elimination. Taken from `bencher`.
fn black_box<T>(dummy: T) -> T {
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11 changes: 9 additions & 2 deletions src/os.rs
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Expand Up @@ -551,15 +551,22 @@ mod imp {

impl OsRng {
pub fn new() -> io::Result<OsRng> {
Err(io::Error::new(io::ErrorKind::Other, "Not supported"))
//Err(io::Error::new(io::ErrorKind::Other, "Not supported"))
Ok(OsRng)
}
}

impl Rng for OsRng {
fn next_u32(&mut self) -> u32 {
panic!("Not supported")
//panic!("Not supported")
let n:u32 = unsafe { date_now() };
(n/1000) as u32
}
}

extern {
pub fn date_now() -> u32;
}
}

#[cfg(test)]
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