core/macos: Import core from macos https://mitchellh.com/writing/zig-and-swiftui This blog post hugely helped me writing build scripts... I could not do this without that blog post.

Changes

4 changed files (+124/-1)

• core/build.zig
  • @@ -41,6 +41,86 @@
    mod.addImport("sood", sood); } + // XCFramework + // https://mitchellh.com/writing/zig-and-swiftui + if (target.result.os.tag.isDarwin()) { + const arm = b.addLibrary(.{ + .name = "plac_core_arm", + .linkage = .static, + .root_module = b.createModule(.{ + .root_source_file = b.path("src/lib.zig"), + .target = b.resolveTargetQuery(.{ + .os_tag = .macos, + .cpu_arch = .aarch64, + }), + .optimize = optimize, + }), + }); + + // While I could have dedicated unit just for copying, this is simpler and easier. + arm.installHeader(b.path("src/lib.h"), "plac_core.h"); + arm.installHeader(b.path("src/lib.modulemap"), "module.modulemap"); + + const intel = b.addLibrary(.{ + .name = "plac_core_intel", + .linkage = .static, + .root_module = b.createModule(.{ + .root_source_file = b.path("src/lib.zig"), + .target = b.resolveTargetQuery(.{ + .os_tag = .macos, + .cpu_arch = .x86_64, + }), + .optimize = optimize, + }), + }); + + inline for (.{ arm, intel }) |compile| { + compile.linkLibC(); + + // Without bundling those, XCode unable to resolve symbols. + compile.bundle_compiler_rt = true; + compile.bundle_ubsan_rt = true; + + compile.root_module.addImport("sood", sood); + } + + const universal_lib = universal: { + const lipo = b.addSystemCommand(&.{"lipo"}); + + lipo.addArg("-create"); + + lipo.addArg("-output"); + const output = lipo.addOutputFileArg("libplac_core.a"); + + lipo.addFileArg(arm.getEmittedBin()); + lipo.addFileArg(intel.getEmittedBin()); + + break :universal output; + }; + + const xcframework = xcframework: { + const xcodebuild = b.addSystemCommand(&.{"xcodebuild"}); + + xcodebuild.addArg("-create-xcframework"); + + xcodebuild.addArg("-library"); + xcodebuild.addFileArg(universal_lib); + + xcodebuild.addArg("-headers"); + xcodebuild.addDirectoryArg(arm.getEmittedIncludeTree()); + + xcodebuild.addArg("-output"); + break :xcframework xcodebuild.addOutputDirectoryArg("PlacCore.xcframework"); + }; + + const step = b.step("xcframework", "Build xcframework file for XCode"); + step.dependOn(&b.addInstallDirectory(.{ + .source_dir = xcframework, + .install_dir = .{ .custom = "xcframeworks" }, + .install_subdir = "PlacCore.xcframework", + }).step); + } + // Static library (C API) { const linkage = b.option(
• core/src/lib.modulemap (new)
  • @@ -0,0 +1,19 @@
    + // Copyright 2025 Shota FUJI + // + // Licensed under the Apache License, Version 2.0 (the "License"); + // you may not use this file except in compliance with the License. + // You may obtain a copy of the License at + // + // http://www.apache.org/licenses/LICENSE-2.0 + // + // Unless required by applicable law or agreed to in writing, software + // distributed under the License is distributed on an "AS IS" BASIS, + // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + // See the License for the specific language governing permissions and + // limitations under the License. + // + // SPDX-License-Identifier: Apache-2.0 + module PlacCore { + umbrella header "plac_core.h" + export * + }
• macos/plac.xcodeproj/project.pbxproj
  • @@ -6,6 +6,10 @@ };
    objectVersion = 77; objects = { + /* Begin PBXBuildFile section */ + C3490F972DB36DC40030476A /* PlacCore.xcframework in Frameworks */ = {isa = PBXBuildFile; fileRef = C3490F962DB36DC40030476A /* PlacCore.xcframework */; }; + /* End PBXBuildFile section */ + /* Begin PBXContainerItemProxy section */ C3EABC802DB1170700F786D6 /* PBXContainerItemProxy */ = { isa = PBXContainerItemProxy;
  • @@ -24,6 +28,7 @@ };
    /* End PBXContainerItemProxy section */ /* Begin PBXFileReference section */ + C3490F962DB36DC40030476A /* PlacCore.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; name = PlacCore.xcframework; path = "../core/zig-out/xcframeworks/PlacCore.xcframework"; sourceTree = "<group>"; }; C3EABC712DB1170400F786D6 /* plac.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = plac.app; sourceTree = BUILT_PRODUCTS_DIR; }; C3EABC7F2DB1170700F786D6 /* placTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = placTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; }; C3EABC892DB1170700F786D6 /* placUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = placUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
  • @@ -52,6 +57,7 @@ C3EABC6E2DB1170400F786D6 /* Frameworks */ = {
    isa = PBXFrameworksBuildPhase; buildActionMask = 2147483647; files = ( + C3490F972DB36DC40030476A /* PlacCore.xcframework in Frameworks */, ); runOnlyForDeploymentPostprocessing = 0; };
  • @@ -72,12 +78,21 @@ };
    /* End PBXFrameworksBuildPhase section */ /* Begin PBXGroup section */ + C3490F952DB36DC30030476A /* Frameworks */ = { + isa = PBXGroup; + children = ( + C3490F962DB36DC40030476A /* PlacCore.xcframework */, + ); + name = Frameworks; + sourceTree = "<group>"; + }; C3EABC682DB1170400F786D6 = { isa = PBXGroup; children = ( C3EABC732DB1170400F786D6 /* plac */, C3EABC822DB1170700F786D6 /* placTests */, C3EABC8C2DB1170700F786D6 /* placUITests */, + C3490F952DB36DC30030476A /* Frameworks */, C3EABC722DB1170400F786D6 /* Products */, ); sourceTree = "<group>";
• macos/plac/ContentView.swift
  • @@ -14,15 +14,24 @@ // limitations under the License.
    // // SPDX-License-Identifier: Apache-2.0 + import PlacCore import SwiftUI + func getDefaultReceiveWindow() -> UInt32 { + var opts = PlacCore.plac_server_scan_options() + PlacCore.plac_server_scan_options_init(&opts) + + return opts.receive_window_ms + } + struct ContentView: View { var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) - Text("Hello, world!") + Text( + String(format: "Window = %u", getDefaultReceiveWindow())) } .padding() }