Date: Sat, 4 Aug 2012 05:10:06 GMT From: "Jukka A. Ukkonen" <jau@oxit.fi> To: freebsd-standards@FreeBSD.org Subject: Re: standards/170346: Changes to support waitid() and related stuff Message-ID: <201208040510.q745A6dI027358@freefall.freebsd.org>
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The following reply was made to PR standards/170346; it has been noted by GNATS.
From: "Jukka A. Ukkonen" <jau@oxit.fi>
To: bug-followup@FreeBSD.org, jau@iki.fi
Cc:
Subject: Re: standards/170346: Changes to support waitid() and related stuff
Date: Sat, 04 Aug 2012 07:51:29 +0300
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Oops! Sorry!
It seems I forgot the actual waitid() function from the patch.
Here is the missing part.
--jau
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--- /dev/null 2012-08-04 07:33:00.000000000 +0300
+++ lib/libc/gen/waitid.c 2012-07-30 12:43:59.000000000 +0300
@@ -0,0 +1,57 @@
+
+#include "namespace.h"
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stddef.h>
+#include <string.h>
+#include <signal.h>
+#include <errno.h>
+#include "un-namespace.h"
+
+int
+__waitid (idtype, id, info, flags)
+ idtype_t idtype;
+ id_t id;
+ siginfo_t *info;
+ int flags;
+{
+ int status;
+ pid_t ret;
+
+ /*
+ * NOTICE!
+ * The traditional PID/PGID == 0 to wait for
+ * any process in the caller's own process group
+ * still works when the idtype is set to either
+ * P_PID or P_PGID.
+ */
+
+ if (info) {
+ memset (info, '\0', sizeof (*info));
+ }
+
+ /*
+ * In case you wish to start waiting for any
+ * processes
+ * - running in a certain jail (zone),
+ * - running on a certain cpu, or
+ * - nailed to a certain CPU set,
+ * - etc.
+ * you will have to extend the kern_wait6() in
+ * the kernel to support such idtype_t flavours.
+ */
+
+ ret = _wait6 (idtype, id, &status, flags, NULL, info);
+
+ if (ret < 0) {
+ ret = -1;
+ }
+ else {
+ ret = 0;
+ }
+
+ return ((int) ret);
+}
+
+__weak_reference(__waitid, waitid);
+__weak_reference(__waitid, _waitid);
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