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106 lines
3.1 KiB
106 lines
3.1 KiB
extern crate bindgen;
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extern crate cc;
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extern crate pkg_config;
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use bindgen::callbacks::IntKind;
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use bindgen::callbacks::ParseCallbacks;
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use std::env;
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use std::path::PathBuf;
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#[cfg(feature = "mdb_idl_logn_8")]
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const MDB_IDL_LOGN: u8 = 8;
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#[cfg(feature = "mdb_idl_logn_9")]
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const MDB_IDL_LOGN: u8 = 9;
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#[cfg(feature = "mdb_idl_logn_10")]
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const MDB_IDL_LOGN: u8 = 10;
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#[cfg(feature = "mdb_idl_logn_11")]
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const MDB_IDL_LOGN: u8 = 11;
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#[cfg(feature = "mdb_idl_logn_12")]
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const MDB_IDL_LOGN: u8 = 12;
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#[cfg(feature = "mdb_idl_logn_13")]
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const MDB_IDL_LOGN: u8 = 13;
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#[cfg(feature = "mdb_idl_logn_14")]
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const MDB_IDL_LOGN: u8 = 14;
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#[cfg(feature = "mdb_idl_logn_15")]
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const MDB_IDL_LOGN: u8 = 15;
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#[cfg(not(any(
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feature = "mdb_idl_logn_8",
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feature = "mdb_idl_logn_9",
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feature = "mdb_idl_logn_10",
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feature = "mdb_idl_logn_11",
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feature = "mdb_idl_logn_12",
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feature = "mdb_idl_logn_13",
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feature = "mdb_idl_logn_14",
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feature = "mdb_idl_logn_15",
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)))]
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const MDB_IDL_LOGN: u8 = 16;
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#[derive(Debug)]
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struct Callbacks;
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impl ParseCallbacks for Callbacks {
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fn int_macro(&self, name: &str, _value: i64) -> Option<IntKind> {
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match name {
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"MDB_SUCCESS"
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| "MDB_KEYEXIST"
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| "MDB_NOTFOUND"
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| "MDB_PAGE_NOTFOUND"
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| "MDB_CORRUPTED"
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| "MDB_PANIC"
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| "MDB_VERSION_MISMATCH"
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| "MDB_INVALID"
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| "MDB_MAP_FULL"
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| "MDB_DBS_FULL"
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| "MDB_READERS_FULL"
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| "MDB_TLS_FULL"
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| "MDB_TXN_FULL"
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| "MDB_CURSOR_FULL"
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| "MDB_PAGE_FULL"
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| "MDB_MAP_RESIZED"
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| "MDB_INCOMPATIBLE"
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| "MDB_BAD_RSLOT"
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| "MDB_BAD_TXN"
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| "MDB_BAD_VALSIZE"
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| "MDB_BAD_DBI"
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| "MDB_LAST_ERRCODE" => Some(IntKind::Int),
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_ => Some(IntKind::UInt),
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}
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}
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}
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fn main() {
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let mut lmdb = PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap());
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lmdb.push("lmdb");
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lmdb.push("libraries");
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lmdb.push("liblmdb");
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if !pkg_config::find_library("liblmdb").is_ok() {
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cc::Build::new()
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.define("MDB_IDL_LOGN", Some(MDB_IDL_LOGN.to_string().as_str()))
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.file(lmdb.join("mdb.c"))
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.file(lmdb.join("midl.c"))
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// https://github.com/LMDB/lmdb/blob/LMDB_0.9.21/libraries/liblmdb/Makefile#L25
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.opt_level(2)
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.compile("liblmdb.a")
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}
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let bindings = bindgen::Builder::default()
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.header(lmdb.join("lmdb.h").to_string_lossy())
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.whitelist_var("^(MDB|mdb)_.*")
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.whitelist_type("^(MDB|mdb)_.*")
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.whitelist_function("^(MDB|mdb)_.*")
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.ctypes_prefix("::libc")
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.blacklist_item("mode_t")
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.blacklist_item("^__.*")
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.parse_callbacks(Box::new(Callbacks {}))
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.layout_tests(false)
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.prepend_enum_name(false)
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.rustfmt_bindings(true)
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.generate()
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.expect("Unable to generate bindings");
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
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bindings
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Couldn't write bindings!");
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}
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