From: Rusty Russell <rusty@rustcorp.com.au>
Date: Fri, 21 Jan 2011 03:50:45 +0000 (+1030)
Subject: lca2011: dump talloc tree in child.
X-Git-Url: https://git.ozlabs.org/?a=commitdiff_plain;h=5cde12ca405f988a8a35b4281c90fbaf53f5464f;hp=e3096dff04758d433eb415f00d586d144b2ffea4;p=ccan-lca-2011.git

lca2011: dump talloc tree in child.

Avoids stopping the entire server just for debug dumps.
---

diff --git a/ccan/oserver/oserver.c b/ccan/oserver/oserver.c
index c7a523c..ad8f315 100644
--- a/ccan/oserver/oserver.c
+++ b/ccan/oserver/oserver.c
@@ -314,10 +314,16 @@ static void talloc_dump(struct tevent_context *ev,
 			void *_oserver)
 {
 	struct oserver *oserver = _oserver;
-	FILE *f = fopen("/var/run/oserver/talloc.dump", "w");
-	if (f) {
-		talloc_report_full(oserver, f);
-		fclose(f);
+	FILE *f;
+
+	/* Fork off a child for the report, so we aren't stopped. */
+	if (fork() == 0) {
+		f = fopen("/var/run/oserver/talloc.dump", "w");
+		if (f) {
+			talloc_report_full(oserver, f);
+			fclose(f);
+		}
+		_exit(0);
 	}
 }