osthread: removed code what had already been moved into Thread.afterDeploy()

Author: denizzzka

druntime/src/core/thread/osthread.d

@@ -1253,114 +1253,6 @@ extern (C) void thread_init() @nogc nothrow
     Thread.initLocks();
     Thread.afterDeploy();
 
-    version (Windows)
-    {
-    }
-    else version (Darwin)
-    {
-        // thread id different in forked child process
-        static extern(C) void initChildAfterFork()
-        {
-            auto thisThread = Thread.getThis();
-            if (!thisThread)
-            {
-                // It is possible that runtime was not properly initialized in the current process or thread -
-                // it may happen after `fork` call when using a dynamically loaded shared library written in D from a multithreaded non-D program.
-                // In such case getThis will return null.
-                return;
-            }
-            thisThread.m_tdescr.tid = pthread_self();
-            assert( thisThread.m_tdescr.tid != thisThread.m_tdescr.tid.init );
-            thisThread.m_tdescr.tmach = pthread_mach_thread_np( thisThread.m_tdescr.tid );
-            assert( thisThread.m_tdescr.tmach != thisThread.m_tdescr.tmach.init );
-       }
-        pthread_atfork(null, null, &initChildAfterFork);
-    }
-    else version (Solaris)
-    {
-    }
-    else version (WASI)
-    {
-    }
-    else version (Posix)
-    {
-        version (OpenBSD)
-        {
-            // OpenBSD does not support SIGRTMIN or SIGRTMAX
-            // Use SIGUSR1 for SIGRTMIN, SIGUSR2 for SIGRTMIN + 1
-            // And use 32 for SIGRTMAX (32 is the max signal number on OpenBSD)
-            enum SIGRTMIN = SIGUSR1;
-            enum SIGRTMAX = 32;
-        }
-        else version (Hurd)
-        {
-            // Hurd does not support SIGRTMIN or SIGRTMAX
-            // Use SIGUSR1 for SIGRTMIN, SIGUSR2 for SIGRTMIN + 1
-            // And use 32 for SIGRTMAX (32 is the max signal number on Hurd)
-            enum SIGRTMIN = SIGUSR1;
-            enum SIGRTMAX = 32;
-        }
-        else
-        {
-            import core.sys.posix.signal : SIGRTMAX, SIGRTMIN;
-        }
-
-        if ( suspendSignalNumber == 0 )
-        {
-            suspendSignalNumber = SIGRTMIN;
-        }
-
-        if ( resumeSignalNumber == 0 )
-        {
-            resumeSignalNumber = SIGRTMIN + 1;
-            assert(resumeSignalNumber <= SIGRTMAX);
-        }
-        int         status;
-        sigaction_t suspend = void;
-        sigaction_t resume = void;
-
-        // This is a quick way to zero-initialize the structs without using
-        // memset or creating a link dependency on their static initializer.
-        (cast(byte*) &suspend)[0 .. sigaction_t.sizeof] = 0;
-        (cast(byte*)  &resume)[0 .. sigaction_t.sizeof] = 0;
-
-        // NOTE: SA_RESTART indicates that system calls should restart if they
-        //       are interrupted by a signal, but this is not available on all
-        //       Posix systems, even those that support multithreading.
-        static if (__traits(compiles, core.sys.posix.signal.SA_RESTART))
-        {
-            import core.sys.posix.signal : SA_RESTART;
-
-            suspend.sa_flags = SA_RESTART;
-        }
-
-        suspend.sa_handler = &thread_suspendHandler;
-        // NOTE: We want to ignore all signals while in this handler, so fill
-        //       sa_mask to indicate this.
-        status = sigfillset( &suspend.sa_mask );
-        assert( status == 0 );
-
-        // NOTE: Since resumeSignalNumber should only be issued for threads within the
-        //       suspend handler, we don't want this signal to trigger a
-        //       restart.
-        resume.sa_flags   = 0;
-        resume.sa_handler = &thread_resumeHandler;
-        // NOTE: We want to ignore all signals while in this handler, so fill
-        //       sa_mask to indicate this.
-        status = sigfillset( &resume.sa_mask );
-        assert( status == 0 );
-
-        status = sigaction( suspendSignalNumber, &suspend, null );
-        assert( status == 0 );
-
-        status = sigaction( resumeSignalNumber, &resume, null );
-        assert( status == 0 );
-
-        status = sem_init( &suspendCount, 0, 0 );
-        assert( status == 0 );
-    }
-    else
-        static assert(0, "unsupported os");
     _mainThreadStore[] = cast(void[]) __traits(initSymbol, Thread)[];
     Thread.sm_main = attachThread((cast(Thread)_mainThreadStore.ptr).__ctor());
 }