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FFI_SessionContext

daft_ext::abi

Struct FFI_SessionContext 

Source 
#[repr(C)]
pub struct FFI_SessionContext {
    pub ctx: *mut c_void,
    pub define_function: unsafe extern "C" fn(ctx: *mut c_void, function: FFI_ScalarFunction) -> c_int,
}
Expand description

Host-side session context passed to a module’s init function.

The module calls define_function to register extensions.

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§ctx: *mut c_void

Opaque host-side context pointer.

§define_function: unsafe extern "C" fn(ctx: *mut c_void, function: FFI_ScalarFunction) -> c_int

Register a scalar function with the host session.

The host takes ownership of function on success. Returns 0 on success, non-zero on error.

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