From ddea7ed28a25a4b878b1ac12d67b827ec4e59f64 Mon Sep 17 00:00:00 2001
From: Matthew Gregan <kinetik@flim.org>
Date: Fri, 10 Apr 2026 15:59:51 +1200
Subject: [PATCH] Expose target pid on Linux.

---
 src/lib.rs      | 4 ++++
 src/rt_linux.rs | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 76cc2b5..613f5c1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -142,6 +142,10 @@ cfg_if! {
             pub fn deserialize(_: [u8; 1]) -> Self {
                 RtPriorityThreadInfo{_dummy: 0}
             }
+            /// Returns the PID of the process containing the thread (fallback: always -1).
+            pub fn pid(&self) -> i32 {
+                -1
+            }
         }
         /// Fallback implementation that performs no operation for unsupported platforms.
         pub fn promote_current_thread_to_real_time_internal(_: u32, audio_samplerate_hz: u32) -> Result<RtPriorityHandle, AudioThreadPriorityError> {
diff --git a/src/rt_linux.rs b/src/rt_linux.rs
index 1eabe29..2a1ddb0 100644
--- a/src/rt_linux.rs
+++ b/src/rt_linux.rs
@@ -62,6 +62,10 @@ impl RtPriorityThreadInfoInternal {
     pub fn deserialize(bytes: [u8; std::mem::size_of::<Self>()]) -> Self {
         unsafe { std::mem::transmute::<[u8; std::mem::size_of::<Self>()], Self>(bytes) }
     }
+    /// Returns the PID of the process containing the thread.
+    pub fn pid(&self) -> libc::pid_t {
+        self.pid
+    }
 }
 
 impl PartialEq for RtPriorityThreadInfoInternal {