From: nobu.nokada@...
Date: 2005-06-26T14:38:14+09:00
Subject: Re: speeding up Process.detach frequency

Hi,

At Sun, 26 Jun 2005 13:39:35 +0900,
nobu.nokada@softhome.net wrote in [ruby-talk:146500]:
> Or if it's not enough, a patch to use SIGCHLD.

Sorry, it was incomplete.  Following is an additional patch.


diff -U2 eval.c eval.c
--- eval.c	26 Jun 2005 04:27:51 -0000
+++ eval.c	26 Jun 2005 05:01:37 -0000
@@ -10692,4 +10692,5 @@
     int need_select = 0;
     int select_timeout = 0;
+    int do_pause = 0;
 
 #ifdef HAVE_NATIVETHREAD
@@ -10766,4 +10767,7 @@
 	    }
 	}
+	if (th->wait_for & WAIT_PID) {
+	    do_pause = 1;
+	}
     }
     END_FOREACH_FROM(curr, th);
@@ -10890,8 +10894,9 @@
 	/* raise fatal error to main thread */
 	curr_thread->node = ruby_current_node;
-	if (curr->next == curr) {
+	if (do_pause || curr->next == curr) {
 	    TRAP_BEG;
 	    pause();
 	    TRAP_END;
+	    if (do_pause) return;
 	}
 	FOREACH_THREAD_FROM(curr, th) {
diff -U2 signal.c signal.c
--- signal.c	26 Jun 2005 04:33:30 -0000
+++ signal.c	26 Jun 2005 05:30:16 -0000
@@ -360,4 +360,5 @@
 	if (handler == SIG_IGN) sigact.sa_flags |= SA_NOCLDWAIT;
 #endif
+	sigact.sa_flags |= SA_RESTART;
     }
 #endif


-- 
Nobu Nakada