Function kv_put

example_projects/wasm32_without_js/wasm-runtime/src/main.rs:44–54

kp and kl are the key pointer and length in wasm memory, vp and vl are for the value

(mut ctx: FunctionEnvMut<Ctx>, kp: i32, kl: i32, vp: i32, vl: i32)

/// kp and kl are the key pointer and length in wasm memory, vp and vl are for the value
fn kv_put(mut ctx: FunctionEnvMut<Ctx>, kp: i32, kl: i32, vp: i32, vl: i32) -> i32 {
    let (c, s) = ctx.data_and_store_mut();
    let mut key = vec![0u8; kl as usize];
    let mut val = vec![0u8; vl as usize];
    let m = c.mem.as_ref().unwrap().view(&s);
    if m.read(kp as u64, &mut key).is_err() || m.read(vp as u64, &mut val).is_err() {
        return -1;
    }
    c.kv.insert(key, val);
    0
}

// // p and l are the buffer pointer and length in wasm memory.
// fn get_code(mut ctx:FunctionEnvMut<Ctx>, p: i32, l: i32) -> i32 {