feat: added zig loaders for unix and refactor

unix-loader/build.zig

@@ -0,0 +1,26 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) !void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const lib = b.addSharedLibrary(.{
+        .name = "unix-loader",
+        .root_source_file = b.path("src/loader.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const exe = b.addExecutable(.{
+        .name = "unix-loader",
+        .root_source_file = b.path("src/test_run.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+
+    lib.linkLibC();
+    b.installArtifact(lib);
+
+    exe.linkLibC();
+    b.installArtifact(exe);
+}

unix-loader/build.zig.zon

@@ -0,0 +1,13 @@
+.{
+    .name = "linux-loader",
+
+    .version = "2.0.0",
+
+    .dependencies = .{},
+
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+    },
+}

unix-loader/src/loader.zig

@@ -0,0 +1,10 @@
+const std = @import("std");
+const testing = std.testing;
+
+export fn add(a: i32, b: i32) i32 {
+    return a + b;
+}
+
+test "basic add functionality" {
+    try testing.expect(add(3, 7) == 10);
+}

unix-loader/src/test_run.zig

@@ -0,0 +1,25 @@
+const std = @import("std");
+
+pub fn main() !void {
+    // Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
+    std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
+
+    // stdout is for the actual output of your application, for example if you
+    // are implementing gzip, then only the compressed bytes should be sent to
+    // stdout, not any debugging messages.
+    const stdout_file = std.io.getStdOut().writer();
+    var bw = std.io.bufferedWriter(stdout_file);
+    const stdout = bw.writer();
+
+    try stdout.print("Run `zig build test` to run the tests.\n", .{});
+
+    try bw.flush(); // don't forget to flush!
+}
+
+test "simple test" {
+    var list = std.ArrayList(i32).init(std.testing.allocator);
+    defer list.deinit(); // try commenting this out and see if zig detects the memory leak!
+
+    try list.append(42);
+    try std.testing.expectEqual(@as(i32, 42), list.pop());
+}