update

[ziglmdb] / src / main.zig

diff --git a/src/main.zig b/src/main.zig
deleted file mode 100644 (file)
index ce9cde9..0000000
--- a/src/main.zig
+++ /dev/null
@@ -1,90 +0,0 @@
-const std = @import("std");
-const lmdb = @cImport(@cInclude("lmdb.h"));
-
-const print = std.debug.print;
-
-pub fn Lmdb(comptime KeySize: comptime_int) type {
-    _ = KeySize;
-    return struct {
-        pub fn init(comptime path: []const u8) @This() {
-            var res: @This() = undefined;
-
-            _ = lmdb.mdb_env_create(&res.env);
-            // mdb_env_set_maxreaders(env, 1);
-            // mdb_env_set_maxdbs(env, 1); // named databases
-            // mdb_env_set_mapsize(env, 1024*1024);
-
-            _ = lmdb.mdb_env_open(res.env, path.ptr, 0, 0o664);
-            // /*MDB_FIXEDMAP |MDB_NOSYNC |MDB_NOSUBDIR*/
-
-            _ = lmdb.mdb_txn_begin(res.env, null, 0, &res.txn);
-            _ = lmdb.mdb_dbi_open(res.txn, null, 0, &res.dbi);
-
-            return res;
-        }
-
-        pub fn deinit(self: @This()) void {
-            _ = lmdb.mdb_txn_commit(self.txn);
-            _ = lmdb.mdb_dbi_close(self.env, self.dbi);
-            _ = lmdb.mdb_env_close(self.env);
-        }
-
-        pub fn get(self: @This(), comptime T: type, key: []const u8) ?T {
-            var k = lmdb.MDB_val{
-                .mv_data = @ptrFromInt(@intFromPtr(key.ptr)),
-                .mv_size = key.len,
-            };
-
-            var v: lmdb.MDB_val = undefined;
-
-            const res = lmdb.mdb_get(self.txn, self.dbi, &k, &v);
-
-            if (res == 0 and v.mv_size == @sizeOf(T)) {
-                if (v.mv_data) |data| {
-                    return @as(*T, @ptrFromInt(@intFromPtr(data))).*;
-                }
-            }
-
-            return null;
-        }
-
-        pub fn put(self: @This(), comptime T: type, key: []const u8, val: T) void {
-            var k = lmdb.MDB_val{
-                .mv_data = @ptrFromInt(@intFromPtr(key.ptr)),
-                .mv_size = key.len,
-            };
-
-            var v = lmdb.MDB_val{
-                .mv_data = @ptrFromInt(@intFromPtr(&val)),
-                .mv_size = @sizeOf(T),
-            };
-
-            const res = lmdb.mdb_put(self.txn, self.dbi, &k, &v, 0);
-            _ = res;
-
-            // return val;
-        }
-
-        env: ?*lmdb.MDB_env,
-        dbi: lmdb.MDB_dbi,
-        txn: ?*lmdb.MDB_txn,
-    };
-}
-
-pub fn main() !void {
-    var db = Lmdb(16).init("./db");
-    defer db.deinit();
-
-    var testKey = [_]u8{0} ** 16;
-    @memcpy(testKey[0..5], "abcde");
-    // @memcpy(testKey[5..10], "abcde");
-
-    const u_1 = db.get(u8, &testKey);
-    print("u1: {?}\n", .{u_1});
-
-    var u_2 = db.get(u8, "abcde" ++ "12345");
-    db.put(u8, "abcde" ++ "12345", u_2.? + 1);
-
-    u_2 = db.get(u8, "abcde" ++ "12345");
-    print("u2: {?}\n", .{u_2});
-}