Define OSCompat module (facebook#49302)

Summary:

# Changelog: [Internal]

Added OS-agnostic module that will implement 2 basic capabilities:
- Getting current process id
- Getting current thread id

Reviewed By: javache

Differential Revision: D69316093

packages/react-native/ReactAndroid/src/main/jni/CMakeLists.txt

@@ -66,6 +66,7 @@ add_react_common_subdir(cxxreact)
 add_react_common_subdir(jsc)
 add_react_common_subdir(jsi)
 add_react_common_subdir(callinvoker)
+add_react_common_subdir(oscompat)
 add_react_common_subdir(jsinspector-modern)
 add_react_common_subdir(jsinspector-modern/tracing)
 add_react_common_subdir(hermes/executor)
@@ -167,6 +168,7 @@ add_library(reactnative
           $<TARGET_OBJECTS:jsireact>
           $<TARGET_OBJECTS:logger>
           $<TARGET_OBJECTS:mapbufferjni>
+          $<TARGET_OBJECTS:oscompat>
           $<TARGET_OBJECTS:react_bridging>
           $<TARGET_OBJECTS:react_codegen_rncore>
           $<TARGET_OBJECTS:react_cxxreact>

packages/react-native/ReactCommon/oscompat/CMakeLists.txt

@@ -0,0 +1,14 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+cmake_minimum_required(VERSION 3.13)
+set(CMAKE_VERBOSE_MAKEFILE on)
+
+add_compile_options(-fexceptions)
+
+file(GLOB oscompat_SRC CONFIGURE_DEPENDS *.cpp)
+add_library(oscompat OBJECT ${oscompat_SRC})
+
+target_include_directories(oscompat PUBLIC .)

packages/react-native/ReactCommon/oscompat/OSCompat.h

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#pragma once
+
+#include <cstdint>
+
+namespace facebook::react::oscompat {
+
+uint64_t getCurrentProcessId();
+
+uint64_t getCurrentThreadId();
+
+} // namespace facebook::react::oscompat

packages/react-native/ReactCommon/oscompat/OSCompatPosix.cpp

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || \
+    defined(__ANDROID__)
+
+#include "OSCompat.h"
+
+#include <cassert>
+
+#include <pthread.h>
+#include <unistd.h>
+
+#if defined(__MACH__)
+#include <mach/mach.h>
+#endif // defined(__MACH__)
+
+#if defined(__linux__)
+#include <sys/syscall.h>
+#endif // defined(__linux__)
+
+namespace facebook::react::oscompat {
+
+uint64_t getCurrentProcessId() {
+  return getpid();
+}
+
+#if defined(__APPLE__) && defined(__MACH__)
+
+uint64_t getCurrentThreadId() {
+  uint64_t tid = 0;
+  auto ret = pthread_threadid_np(nullptr, &tid);
+  assert(
+      ret == 0 &&
+      "Unexpected pthread_threadid_np failure while getting thread ID");
+  (void)ret;
+  return tid;
+}
+
+#elif defined(__ANDROID__)
+
+uint64_t getCurrentThreadId() {
+  return gettid();
+}
+
+#elif defined(__linux__)
+
+uint64_t getCurrentThreadId() {
+  return syscall(__NR_gettid);
+}
+
+#else
+#error "getCurrentThreadID() is not supported on this platform"
+#endif
+
+} // namespace facebook::react::oscompat
+
+#endif // defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) ||
+       // defined(__ANDROID__)

packages/react-native/ReactCommon/oscompat/OSCompatWindows.cpp

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#if defined(_WIN32) || defined(_MSC_VER)
+
+#include "OSCompat.h"
+
+#include <windows.h>
+
+namespace facebook::react::oscompat {
+
+uint64_t getCurrentProcessId() {
+  return GetCurrentProcessId();
+}
+
+uint64_t getCurrentThreadId() {
+  return GetCurrentThreadId();
+}
+
+} // namespace facebook::react::oscompat
+
+#endif // defined(_WIN32) || defined(_MSC_VER)

packages/react-native/ReactCommon/oscompat/React-oscompat.podspec

@@ -0,0 +1,31 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+require "json"
+
+package = JSON.parse(File.read(File.join(__dir__, "..", "..", "package.json")))
+version = package['version']
+
+source = { :git => 'https://github.com/facebook/react-native.git' }
+if version == '1000.0.0'
+  # This is an unpublished version, use the latest commit hash of the react-native repo, which we’re presumably in.
+  source[:commit] = `git rev-parse HEAD`.strip if system("git rev-parse --git-dir > /dev/null 2>&1")
+else
+  source[:tag] = "v#{version}"
+end
+
+Pod::Spec.new do |s|
+  s.name                   = "React-oscompat"
+  s.version                = version
+  s.summary                = "Small set of OS-level utilities for React Native"
+  s.homepage               = "https://reactnative.dev/"
+  s.license                = package["license"]
+  s.author                 = "Meta Platforms, Inc. and its affiliates"
+  s.platforms              = min_supported_versions
+  s.source                 = source
+  s.source_files           = "*.{cpp,h}"
+  s.pod_target_xcconfig    = { "HEADER_SEARCH_PATHS" => "" }
+  s.header_dir             = "oscompat"
+end

packages/react-native/scripts/cocoapods/utils.rb

@@ -634,6 +634,7 @@ def self.react_native_pods
             "React-jsiexecutor",
             "React-jsinspector",
             "React-logger",
+            "React-oscompat",
             "React-perflogger",
             "React-rncore",
             "React-runtimeexecutor",

packages/react-native/scripts/react_native_pods.rb

@@ -155,6 +155,7 @@ def use_react_native! (
   pod 'React-rendererdebug', :path => "#{prefix}/ReactCommon/react/renderer/debug"
   pod 'React-rendererconsistency', :path => "#{prefix}/ReactCommon/react/renderer/consistency"
   pod 'React-perflogger', :path => "#{prefix}/ReactCommon/reactperflogger"
+  pod 'React-oscompat', :path => "#{prefix}/ReactCommon/oscompat"
   pod 'React-logger', :path => "#{prefix}/ReactCommon/logger"
   pod 'ReactCommon/turbomodule/core', :path => "#{prefix}/ReactCommon", :modular_headers => true
   pod 'React-NativeModulesApple', :path => "#{prefix}/ReactCommon/react/nativemodule/core/platform/ios", :modular_headers => true

packages/rn-tester/Podfile.lock

@@ -1367,6 +1367,7 @@ PODS:
     - React-runtimeexecutor
     - ReactCommon/turbomodule/bridging
     - ReactCommon/turbomodule/core
+  - React-oscompat (1000.0.0)
   - React-perflogger (1000.0.0):
     - DoubleConversion
     - RCT-Folly (= 2024.11.18.00)
@@ -1743,6 +1744,7 @@ DEPENDENCIES:
   - React-Mapbuffer (from `../react-native/ReactCommon`)
   - React-microtasksnativemodule (from `../react-native/ReactCommon/react/nativemodule/microtasks`)
   - React-NativeModulesApple (from `../react-native/ReactCommon/react/nativemodule/core/platform/ios`)
+  - React-oscompat (from `../react-native/ReactCommon/oscompat`)
   - React-perflogger (from `../react-native/ReactCommon/reactperflogger`)
   - React-performancetimeline (from `../react-native/ReactCommon/react/performance/timeline`)
   - React-RCTActionSheet (from `../react-native/Libraries/ActionSheetIOS`)
@@ -1866,6 +1868,8 @@ EXTERNAL SOURCES:
     :path: "../react-native/ReactCommon/react/nativemodule/microtasks"
   React-NativeModulesApple:
     :path: "../react-native/ReactCommon/react/nativemodule/core/platform/ios"
+  React-oscompat:
+    :path: "../react-native/ReactCommon/oscompat"
   React-perflogger:
     :path: "../react-native/ReactCommon/reactperflogger"
   React-performancetimeline:
@@ -1976,6 +1980,7 @@ SPEC CHECKSUMS:
   React-Mapbuffer: cd5e7720cb5fd9c0bc43ae71a952cc2a16711a5a
   React-microtasksnativemodule: 6af4b5b26640a12f9abc421a014f300d2a02b789
   React-NativeModulesApple: 612e7d0ccf461840f010689daa86fd058aec01c5
+  React-oscompat: 7133e0e945cda067ae36b22502df663d73002864
   React-perflogger: 6f2b10b96094d29e1dca6be7689d975b98ba4166
   React-performancetimeline: b91e898716885df30697e54eab3eb14f6b48766b
   React-RCTActionSheet: 1bf8cc8086ad1c15da3407dfb7bc9dd94dc7595d