29 lines
746 B
Rust
29 lines
746 B
Rust
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// Host bridge helpers for TypeBox invoke (minimal, v2)
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pub type InvokeFn = unsafe extern "C" fn(u32, u32, u32, *const u8, usize, *mut u8, *mut usize) -> i32;
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// Call invoke_id with a temporary output buffer; returns (code, bytes_written, buffer)
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pub fn invoke_alloc(
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invoke: InvokeFn,
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type_id: u32,
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method_id: u32,
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instance_id: u32,
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tlv_args: &[u8],
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) -> (i32, usize, Vec<u8>) {
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let mut out = vec![0u8; 1024];
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let mut out_len: usize = out.len();
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let code = unsafe {
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invoke(
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type_id,
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method_id,
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instance_id,
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tlv_args.as_ptr(),
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tlv_args.len(),
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out.as_mut_ptr(),
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&mut out_len,
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)
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};
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(code, out_len, out)
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}
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