use pgx::{GucContext, GucRegistry, GucSetting};

const DEFAULT_ALLOCATIONS: i32 = 128;
pub static VECTOR_ALLOCATION_BLOCKS: GucSetting<i32> = GucSetting::new(DEFAULT_ALLOCATIONS);
pub fn init_setting() {
    GucRegistry::define_int_guc(
        "pgvector.allocation_blocks",
        "The number of allocation blocks.",
        "",
        &VECTOR_ALLOCATION_BLOCKS,
        0,
        16184,
        GucContext::Userset,
    );
    println!("SETTING VALUE {:?}", VECTOR_ALLOCATION_BLOCKS.get());
}

                let size = 1024; // todo: replace with GucStuff

                let size = VECTOR_ALLOCATION_BLOCKS.get() as usize;

use std::fmt::format;

#[pg_extern]
fn hello_pgvector_rs() -> &'static str {
    "Get ready to do some similarity search!"
}
fn unwrap_pair((a, b): (Option<f32>, Option<f32>)) -> (f32, f32) {
    (a.unwrap_or(0.0), b.unwrap_or(0.0))
}

//static VECVECVEC: [PgLwLock<FiniteDimAllocator<MAX_SPACE>>; 400] =
//    [(); 400].map(|_| PgLwLock::new());

    // pg_shmem_init!(VECTOR_ALLOCATOR00);

    shmem_blocks::init_setting();

            println!("startup hook: {:?}", PREV_SHMEM_STARTUP_HOOK);
            println!("DONE SETTING SHMEM_HOOKS: {:?}", hook_lock);

                    println!("About to attach pointer");

                    println!("About to write pointer");

                    println!("written!");

                    println!("{:?}", *lock_ref.share())

-- ./src/lib.rs:30:0
CREATE OR REPLACE FUNCTION "hello_pgvector_rs"() RETURNS text STRICT LANGUAGE c AS 'MODULE_PATHNAME', 'hello_pgvector_rs_wrapper';
-- ./src/lib.rs:175:0

-- ./src/lib.rs:157:0

-- ./src/lib.rs:182:0

-- ./src/lib.rs:164:0

-- ./src/lib.rs:197:0

-- ./src/lib.rs:179:0

-- ./src/lib.rs:210:0

-- ./src/lib.rs:192:0