thread: add pthread-based threading module

Cargo.toml

@@ -19,6 +19,8 @@ default-members = [
     "src/containers",
     "src/sync",
     "src/elementary",
+    "src/pal",
+    "src/thread",
     "src/log/score_log_fmt_macro",
     "src/log/stdout_logger",
     "src/testing_macros",
@@ -28,6 +30,8 @@ members = [
     "src/containers",
     "src/sync",
     "src/elementary",
+    "src/pal",
+    "src/thread",
     "src/log/score_log",
     "src/log/score_log_fmt",
     "src/log/score_log_fmt_macro",
@@ -44,12 +48,17 @@ license-file = "LICENSE.md"
 authors = ["S-CORE Contributors"]
 
 [workspace.dependencies]
+libc = "0.2.177"
+
+containers = { path = "src/containers" }
 score_log = { path = "src/log/score_log" }
 score_log_fmt = { path = "src/log/score_log_fmt" }
 score_log_fmt_macro = { path = "src/log/score_log_fmt_macro" }
 stdout_logger = { path = "src/log/stdout_logger" }
 elementary = { path = "src/elementary" }
 testing_macros = { path = "src/testing_macros" }
+pal = { path = "src/pal" }
+thread = { path = "src/thread" }
 
 [workspace.lints.clippy]
 std_instead_of_core = "warn"

src/pal/BUILD

@@ -0,0 +1,35 @@
+# *******************************************************************************
+# Copyright (c) 2026 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+load("@rules_rust//rust:defs.bzl", "rust_library", "rust_test")
+
+rust_library(
+    name = "pal",
+    srcs = glob(["**/*.rs"]),
+    edition = "2021",
+    visibility = ["//src:__subpackages__"],
+    deps = [
+        "//src/containers",
+        "//src/log/score_log",
+        "@score_crates//:libc",
+    ],
+)
+
+rust_test(
+    name = "tests",
+    crate = "pal",
+    tags = [
+        "unit_tests",
+        "ut",
+    ],
+)

src/pal/Cargo.toml

@@ -0,0 +1,28 @@
+# *******************************************************************************
+# Copyright (c) 2026 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+[package]
+name = "pal"
+description = "Minimal POSIX adaptation layer."
+version.workspace = true
+authors.workspace = true
+readme.workspace = true
+edition.workspace = true
+
+[lib]
+path = "lib.rs"
+
+[dependencies]
+libc.workspace = true
+containers.workspace = true
+score_log.workspace = true