From 097722b1edef6dc094b375459b468445b587ebe1 Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Sun, 22 Apr 2018 17:40:37 +0200
Subject: [PATCH] add API to get the number of threads in a threadpool

---
 ostd/build/make.hh  | 4 ++++
 ostd/thread_pool.hh | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/ostd/build/make.hh b/ostd/build/make.hh
index d5fe1c1..cfb2de6 100644
--- a/ostd/build/make.hh
+++ b/ostd/build/make.hh
@@ -251,6 +251,10 @@ struct make {
         return p_rules.back();
     }
 
+    unsigned int threads() const noexcept {
+        return p_tpool.threads();
+    }
+
 private:
 
     struct rule_inst {
diff --git a/ostd/thread_pool.hh b/ostd/thread_pool.hh
index 6a573d8..4e2dbe5 100644
--- a/ostd/thread_pool.hh
+++ b/ostd/thread_pool.hh
@@ -196,6 +196,11 @@ struct thread_pool {
         return ret;
     }
 
+    /** @brief Gets the number of threads in the pool. */
+    unsigned int threads() const noexcept {
+        return p_thrs.size();
+    }
+
 private:
     void thread_run() {
         for (;;) {