Trait secp256k1::Context

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pub unsafe trait Context: Sealed {
    const FLAGS: c_uint;
    const DESCRIPTION: &'static str;

    // Required method
    unsafe fn deallocate(ptr: *mut u8, size: usize);
}
Expand description

A trait for all kinds of contexts that lets you define the exact flags and a function to deallocate memory. It isn’t possible to implement this for types outside this crate.

§Safety

This trait is marked unsafe to allow unsafe implementations of deallocate.

Required Associated Constants§

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const FLAGS: c_uint

Flags for the ffi.

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const DESCRIPTION: &'static str

A constant description of the context.

Required Methods§

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unsafe fn deallocate(ptr: *mut u8, size: usize)

A function to deallocate the memory when the context is dropped.

§Safety

ptr must be valid. Further safety constraints may be imposed by std::alloc::dealloc.

Object Safety§

This trait is not object safe.

Implementors§

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impl Context for All

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const FLAGS: c_uint = 769u32

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const DESCRIPTION: &'static str = "all capabilities"

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impl Context for SignOnly

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const FLAGS: c_uint = 513u32

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const DESCRIPTION: &'static str = "signing only"

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impl Context for VerifyOnly

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const FLAGS: c_uint = 257u32

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const DESCRIPTION: &'static str = "verification only"

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impl<'buf> Context for AllPreallocated<'buf>

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const FLAGS: c_uint = 769u32

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const DESCRIPTION: &'static str = "all capabilities"

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impl<'buf> Context for SignOnlyPreallocated<'buf>

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const FLAGS: c_uint = 513u32

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const DESCRIPTION: &'static str = "signing only"

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impl<'buf> Context for VerifyOnlyPreallocated<'buf>

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const FLAGS: c_uint = 257u32

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const DESCRIPTION: &'static str = "verification only"