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Rollup merge of #51637 - abarth:new_prng, r=cramertj

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Update zx_cprng_draw_new on Fuchsia

Fuchsia is changing the semantics for zx_cprng_draw and
zx_cprng_draw_new is a temporary name for the new semantics.
This commit is contained in:
kennytm
2018-06-22 16:50:42 +08:00
committed by GitHub
parent aa3a6273af 03a40b31a7
commit e920d21d78
1 changed files with 3 additions and 4 deletions
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7
src/libstd/sys/unix/rand.rs
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@@ -183,15 +183,14 @@ mod imp {
mod imp { mod imp {
#[link(name = "zircon")] #[link(name = "zircon")]
extern { extern {
fn zx_cprng_draw(buffer: *mut u8, len: usize, actual: *mut usize) -> i32; fn zx_cprng_draw_new(buffer: *mut u8, len: usize) -> i32;
} }
fn getrandom(buf: &mut [u8]) -> Result<usize, i32> { fn getrandom(buf: &mut [u8]) -> Result<usize, i32> {
unsafe { unsafe {
let mut actual = 0; let status = zx_cprng_draw_new(buf.as_mut_ptr(), buf.len());
let status = zx_cprng_draw(buf.as_mut_ptr(), buf.len(), &mut actual);
if status == 0 { if status == 0 {
Ok(actual) Ok(buf.len())
} else { } else {
Err(status) Err(status)
} }