Date: Tue, 22 Sep 2009 23:11:23 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r197422 - in stable/7/sys: . contrib/pf kern sys Message-ID: <200909222311.n8MNBN5A035351@svn.freebsd.org>
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Author: emaste Date: Tue Sep 22 23:11:23 2009 New Revision: 197422 URL: http://svn.freebsd.org/changeset/base/197422 Log: MFC r195134, r195135, r195191 r195134, r195134: Add a complement to FIONREAD, called FIONWRITE, which returns the number of bytes not yet properly disposed of. Implement it for all sockets. r195191: Add FIONSPACE from NetBSD. FIONSPACE is provided so that programs may easily determine how much space is left in the send queue; they do not need to know the send queue size. Modified: stable/7/sys/ (props changed) stable/7/sys/contrib/pf/ (props changed) stable/7/sys/kern/sys_socket.c stable/7/sys/sys/filio.h Modified: stable/7/sys/kern/sys_socket.c ============================================================================== --- stable/7/sys/kern/sys_socket.c Tue Sep 22 22:23:52 2009 (r197421) +++ stable/7/sys/kern/sys_socket.c Tue Sep 22 23:11:23 2009 (r197422) @@ -161,6 +161,19 @@ soo_ioctl(struct file *fp, u_long cmd, v *(int *)data = so->so_rcv.sb_cc; break; + case FIONWRITE: + /* Unlocked read. */ + *(int *)data = so->so_snd.sb_cc; + break; + + case FIONSPACE: + if ((so->so_snd.sb_hiwat < so->so_snd.sb_cc) || + (so->so_snd.sb_mbmax < so->so_snd.sb_mbcnt)) + *(int *)data = 0; + else + *(int *)data = sbspace(&so->so_snd); + break; + case FIOSETOWN: error = fsetown(*(int *)data, &so->so_sigio); break; Modified: stable/7/sys/sys/filio.h ============================================================================== --- stable/7/sys/sys/filio.h Tue Sep 22 22:23:52 2009 (r197421) +++ stable/7/sys/sys/filio.h Tue Sep 22 23:11:23 2009 (r197422) @@ -55,6 +55,8 @@ struct fiodgname_arg { void *buf; }; #define FIODGNAME _IOW('f', 120, struct fiodgname_arg) /* get dev. name */ +#define FIONWRITE _IOR('f', 119, int) /* get # bytes (yet) to write */ +#define FIONSPACE _IOR('f', 118, int) /* get space in send queue */ /* Handle lseek SEEK_DATA and SEEK_HOLE for holey file knowledge. */ #define FIOSEEKDATA _IOWR('f', 97, off_t) /* SEEK_DATA */ #define FIOSEEKHOLE _IOWR('f', 98, off_t) /* SEEK_HOLE */
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