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use bindgen::callbacks::IntKind;
use bindgen::callbacks::ParseCallbacks;
use std::env;
use std::path::PathBuf;
#[derive(Debug)]
struct Callbacks;
impl ParseCallbacks for Callbacks {
fn int_macro(&self, name: &str, _value: i64) -> Option<IntKind> {
match name {
"MDB_SUCCESS"
| "MDB_KEYEXIST"
| "MDB_NOTFOUND"
| "MDB_PAGE_NOTFOUND"
| "MDB_CORRUPTED"
| "MDB_PANIC"
| "MDB_VERSION_MISMATCH"
| "MDB_INVALID"
| "MDB_MAP_FULL"
| "MDB_DBS_FULL"
| "MDB_READERS_FULL"
| "MDB_TLS_FULL"
| "MDB_TXN_FULL"
| "MDB_CURSOR_FULL"
| "MDB_PAGE_FULL"
| "MDB_MAP_RESIZED"
| "MDB_INCOMPATIBLE"
| "MDB_BAD_RSLOT"
| "MDB_BAD_TXN"
| "MDB_BAD_VALSIZE"
| "MDB_BAD_DBI"
| "MDB_LAST_ERRCODE" => Some(IntKind::Int),
_ => Some(IntKind::UInt),
}
}
}
pub fn generate() {
let mut lmdb = PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap());
lmdb.push("lmdb");
lmdb.push("libraries");
lmdb.push("liblmdb");
let mut out_path = PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap());
out_path.push("src");
let bindings = bindgen::Builder::default()
.header(lmdb.join("lmdb.h").to_string_lossy())
.whitelist_var("^(MDB|mdb)_.*")
.whitelist_type("^(MDB|mdb)_.*")
.whitelist_function("^(MDB|mdb)_.*")
.size_t_is_usize(true)
.ctypes_prefix("::libc")
.blacklist_item("mode_t")
.blacklist_item("mdb_mode_t")
.blacklist_item("mdb_filehandle_t")
.blacklist_item("^__.*")
.parse_callbacks(Box::new(Callbacks {}))
.layout_tests(false)
.prepend_enum_name(false)
.rustfmt_bindings(true)
.generate()
.expect("Unable to generate bindings");
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}
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