Add yield_prim_pthread_cancel_test

test/Jamfile.v2

@@ -390,6 +390,7 @@ run sp_thread_pause_test.cpp ;
 run sp_thread_yield_test.cpp ;
 run sp_thread_sleep_test.cpp ;
 run yield_prim_windows_h_test.cpp ;
+run yield_prim_pthread_cancel_test.cpp ;
 
 use-project /boost/core/swap : ./swap ;
 build-project ./swap ;

test/yield_prim_pthread_cancel_test.cpp

@@ -0,0 +1,54 @@
+// Test that yield primitives aren't cancelation points
+//
+// Copyright 2023 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/core/yield_primitives.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/config.hpp>
+#include <boost/config/pragma_message.hpp>
+
+#if !defined(BOOST_HAS_PTHREADS)
+
+BOOST_PRAGMA_MESSAGE( "Skipping test because BOOST_HAS_PTHREADS is not defined" )
+int main() {}
+
+#else
+
+#include <pthread.h>
+
+pthread_mutex_t s_mx = PTHREAD_MUTEX_INITIALIZER;
+
+void* threadfunc( void* )
+{
+    pthread_mutex_lock( &s_mx );
+    pthread_mutex_unlock( &s_mx );
+
+    boost::core::sp_thread_pause();
+    boost::core::sp_thread_yield();
+    boost::core::sp_thread_sleep();
+
+    return 0;
+}
+
+int main()
+{
+    pthread_mutex_lock( &s_mx );
+
+    pthread_t th;
+    pthread_create( &th, 0, threadfunc, 0 );
+
+    pthread_cancel( th );
+
+    pthread_mutex_unlock( &s_mx );
+
+    void* r;
+    pthread_join( th, &r );
+
+    BOOST_TEST_EQ( r, (void*)0 );
+
+    return boost::report_errors();
+}
+
+#endif

test/yield_prim_windows_h_test.cpp

@@ -1,4 +1,4 @@
-// Test for sp_thread_yield
+// Test for yield_primitives.hpp compatibility with windows.h
 //
 // Copyright 2023 Peter Dimov
 // Distributed under the Boost Software License, Version 1.0.