iframe-proxy | Sunbelt Computer Software

29 lines (24 loc) · 720 Bytes

use crate::common::util::FStr;

use fapi_common::vtable::HostVTable;

static mut VTABLE: Option<HostVTable> = None;

/// Intializes the vtable from the given string.

///

/// # Safety

/// This function may not be called from multiple threads

/// at once.

pub fn init_vtable(s: FStr) -> Result<(), serde_json::Error> {

let vtable = serde_json::from_slice(s.into())?;

unsafe {

VTABLE = Some(vtable);

}

Ok(())

}

/// Returns a reference to the host vtable.

///

/// The vtable must have already been initialized.

///

/// # Safety

/// This call must be made _after_ any calls to `init_vtable`.

pub fn vtable() -> &'static HostVTable {

unsafe { VTABLE.as_ref().expect("vtable not initialized") }

}

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