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rust-secp256k1-unsafe-fast
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Merge pull request #186 from elichai/2019-12-manualdrop 

Wrap Secp256k1 from raw context in a ManuallyDrop
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Andrew Poelstra 2019-12-06 21:26:54 +00:00 committed by GitHub
parent e3aaf00710 d2c4e5a846
commit e7f0974f08
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1 changed files with 10 additions and 9 deletions
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19
src/context.rs
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@ -1,4 +1,5 @@
use core::marker::PhantomData;
use core::mem::ManuallyDrop;
use ptr;
use ffi::{self, CPtr};
use ffi::types::{c_uint, c_void};
@ -227,12 +228,12 @@ impl<'buf> Secp256k1<AllPreallocated<'buf>> {
/// * The user must handle the freeing of the context(using the correct functions) by himself.
/// * Violating these may lead to Undefined Behavior.
///
pub unsafe fn from_raw_all(raw_ctx: *mut ffi::Context) -> Secp256k1<AllPreallocated<'buf>> {
Secp256k1 {
pub unsafe fn from_raw_all(raw_ctx: *mut ffi::Context) -> ManuallyDrop<Secp256k1<AllPreallocated<'buf>>> {
ManuallyDrop::new(Secp256k1 {
ctx: raw_ctx,
phantom: PhantomData,
buf: ptr::null_mut::<[u8;0]>() as *mut [u8] ,
}
})
}
}
@ -259,12 +260,12 @@ impl<'buf> Secp256k1<SignOnlyPreallocated<'buf>> {
/// * The user must handle the freeing of the context(using the correct functions) by himself.
/// * This list *is not* exhaustive, and any violation may lead to Undefined Behavior.,
///
pub unsafe fn from_raw_signining_only(raw_ctx: *mut ffi::Context) -> Secp256k1<SignOnlyPreallocated<'buf>> {
Secp256k1 {
pub unsafe fn from_raw_signining_only(raw_ctx: *mut ffi::Context) -> ManuallyDrop<Secp256k1<SignOnlyPreallocated<'buf>>> {
ManuallyDrop::new(Secp256k1 {
ctx: raw_ctx,
phantom: PhantomData,
buf: ptr::null_mut::<[u8;0]>() as *mut [u8] ,
}
})
}
}
@ -291,11 +292,11 @@ impl<'buf> Secp256k1<VerifyOnlyPreallocated<'buf>> {
/// * The user must handle the freeing of the context(using the correct functions) by himself.
/// * This list *is not* exhaustive, and any violation may lead to Undefined Behavior.,
///
pub unsafe fn from_raw_verification_only(raw_ctx: *mut ffi::Context) -> Secp256k1<VerifyOnlyPreallocated<'buf>> {
Secp256k1 {
pub unsafe fn from_raw_verification_only(raw_ctx: *mut ffi::Context) -> ManuallyDrop<Secp256k1<VerifyOnlyPreallocated<'buf>>> {
ManuallyDrop::new(Secp256k1 {
ctx: raw_ctx,
phantom: PhantomData,
buf: ptr::null_mut::<[u8;0]>() as *mut [u8] ,
}
})
}
}