1 files changed, 18 insertions, 0 deletions
diff --git a/src/linux.rs b/src/linux.rs
new file mode 100644
index 0000000..4826730
--- /dev/null
+++ b/src/linux.rs
@@ -0,0 +1,18 @@
+// Copyright 2020 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/// Provides safe implementations of common low level functions that assume a Linux environment.
+use libc::{syscall, SYS_gettid};
+
+pub type Pid = libc::pid_t;
+
+pub fn getpid() -> Pid {
+    // Calling getpid() is always safe.
+    unsafe { libc::getpid() }
+}
+
+pub fn gettid() -> Pid {
+    // Calling the gettid() sycall is always safe.
+    unsafe { syscall(SYS_gettid) as Pid }
+}