Date: Mon, 3 Oct 2005 18:33:48 GMT From: John Baldwin <jhb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 84737 for review Message-ID: <200510031833.j93IXmOj006755@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=84737 Change 84737 by jhb@jhb_slimer on 2005/10/03 18:33:14 Pullup the refcount test from jhb_proc. Affected files ... .. //depot/projects/smpng/sys/modules/crash/crash.c#20 integrate Differences ... ==== //depot/projects/smpng/sys/modules/crash/crash.c#20 (text+ko) ==== @@ -48,6 +48,7 @@ #include <sys/module.h> #include <sys/mutex.h> #include <sys/proc.h> +#include <sys/refcount.h> #include <sys/sched.h> #include <sys/unistd.h> #include <sys/sx.h> @@ -82,6 +83,28 @@ /* Events. */ +static void +refcount_test(void) +{ + int count; + + printf("Creating and bumping refcount\n"); + refcount_init(&count, 1); + refcount_acquire(&count); + printf("Dropping refcount first time: "); + if (refcount_release(&count)) + printf("true, (uh oh!)\n"); + else + printf("false\n"); + printf("Dropping refcount second time: "); + if (refcount_release(&count)) + printf("true\n"); + else + printf("false, (uh oh!)\n"); + printf("Ending count: %d\n", count); +} +CRASH_EVENT("refcount", refcount_test); + #ifdef WITNESS static void foo_then_bar(void)
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