Date: Mon, 24 Jan 2000 17:20:23 +0100 From: Alexander Langer <alex@big.endian.de> To: Satoshi - Ports Wraith - Asami <asami@FreeBSD.ORG> Cc: current@FreeBSD.ORG Subject: Re: sigisempty? Message-ID: <20000124172023.B5978@cichlids.cichlids.com> In-Reply-To: <vqcr9f7sh1f.fsf@silvia.hip.berkeley.edu>; from asami@FreeBSD.ORG on Mon, Jan 24, 2000 at 06:03:40AM -0800 References: <Pine.BSF.4.21.0001200800100.1541-100000@alphplex.bde.org> <vqcr9f7sh1f.fsf@silvia.hip.berkeley.edu>
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--5vNYLRcllDrimb99 Content-Type: text/plain; charset=us-ascii Thus spake Satoshi - Ports Wraith - Asami (asami@FreeBSD.ORG): > Langer. It has a nice feature of working for both -current and > -stable without any additional #ifdef's. I hope it's ok. I now saw Garret Wollman's function. I like the use of the static-vars. The use of sigemptyset makes it more transparenter for later changes, that I hope won't occur, but at the moment it doesn't matter since sigemptyset is int sigemptyset(set) sigset_t *set; { int i; for (i = 0; i < _SIG_WORDS; i++) set->__bits[i] = 0; return (0); } I attached a patch against patch-lo anyways (sorry ;-) Alex -- I doubt, therefore I might be. --5vNYLRcllDrimb99 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="xview-patch.diff" --- /tmp/xview/patches/patch-lo Thu Jan 20 04:38:25 2000 +++ patch-lo Mon Jan 24 17:14:58 2000 @@ -20,15 +20,17 @@ union wait status; /* Return value from wait3 */ #else SVR4 int status; /* Return value from wait3 */ -@@ -188,7 +197,12 @@ +@@ -188,7 +197,14 @@ #define sigisempty(s) (!(((s)->__sigbits[0]) | ((s)->__sigbits[1]) \ | ((s)->__sigbits[2]) | ((s)->__sigbits[3]))) #else -#define sigisempty(s) (!(*(s))) +static int +sigisempty (sigset_t *s) { -+ sigset_t n; -+ bzero(&n, sizeof(sigset_t)); ++ static sigset_t n; ++ static int emptied = 0; ++ if (!emptied) ++ sigemptyset(&n), emptied++; + return (! memcmp(&n, s, sizeof(sigset_t))); +} #endif --5vNYLRcllDrimb99-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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