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Don't compile in the use of poll() when building libc_r. This isn't
so much a "fix", rather a bandaid to buy time to fix it properly within the thread engine.
This commit is contained in:
Peter Wemm
parent
26d7294956
commit
02a93d74e0
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=36967
@ -71,7 +71,7 @@
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)res_send.c 8.1 (Berkeley) 6/4/93";
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static char orig_rcsid[] = "From: Id: res_send.c,v 8.20 1998/04/06 23:27:51 halley Exp $";
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static char rcsid[] = "$Id: res_send.c,v 1.22 1998/05/02 15:51:54 peter Exp $";
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static char rcsid[] = "$Id: res_send.c,v 1.23 1998/06/11 09:03:01 peter Exp $";
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#endif /* LIBC_SCCS and not lint */
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/*
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@ -99,8 +99,12 @@ static char rcsid[] = "$Id: res_send.c,v 1.22 1998/05/02 15:51:54 peter Exp $";
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#include "res_config.h"
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#ifdef NOPOLL /* libc_r doesn't wrap poll yet() */
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static int use_poll = 0;
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#else
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static int use_poll = 1; /* adapt to poll() syscall availability */
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/* 0 = not present, 1 = try it, 2 = exists */
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#endif
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static int s = -1; /* socket used for communications */
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static int connected = 0; /* is the socket connected */
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@ -519,8 +523,10 @@ res_send(buf, buflen, ans, anssiz)
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/*
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* Use datagrams.
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*/
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#ifndef NOPOLL
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struct pollfd pfd;
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int msec;
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#endif
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struct timeval timeout;
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fd_set dsmask, *dsmaskp;
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int dsmasklen;
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@ -626,6 +632,7 @@ res_send(buf, buflen, ans, anssiz)
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/*
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* Wait for reply
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*/
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#ifndef NOPOLL
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othersyscall:
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if (use_poll) {
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msec = (_res.retrans << try) * 1000;
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@ -634,19 +641,23 @@ res_send(buf, buflen, ans, anssiz)
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if (msec <= 0)
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msec = 1000;
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} else {
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#endif
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timeout.tv_sec = (_res.retrans << try);
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if (try > 0)
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timeout.tv_sec /= _res.nscount;
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if ((long) timeout.tv_sec <= 0)
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timeout.tv_sec = 1;
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timeout.tv_usec = 0;
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#ifndef NOPOLL
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}
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#endif
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wait:
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if (s < 0) {
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Perror(stderr, "s out-of-bounds", EMFILE);
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res_close();
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goto next_ns;
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}
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#ifndef NOPOLL
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if (use_poll) {
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struct sigaction sa, osa;
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int sigsys_installed = 0;
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@ -680,6 +691,7 @@ res_send(buf, buflen, ans, anssiz)
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goto next_ns;
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}
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} else {
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#endif
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dsmasklen = howmany(s + 1, NFDBITS) *
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sizeof(fd_mask);
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if (dsmasklen > sizeof(fd_set)) {
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@ -704,7 +716,9 @@ res_send(buf, buflen, ans, anssiz)
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res_close();
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goto next_ns;
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}
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#ifndef NOPOLL
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}
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#endif
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if (n == 0) {
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/*
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@ -1,4 +1,4 @@
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# $Id: Makefile,v 1.11 1998/06/09 23:25:13 jb Exp $
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# $Id: Makefile,v 1.12 1998/06/12 02:21:27 jb Exp $
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#
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# All library objects contain rcsid strings by default; they may be
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# excluded as a space-saving measure. To produce a library that does
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@ -9,7 +9,7 @@ LIB=c_r
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SHLIB_MAJOR= 3
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SHLIB_MINOR= 0
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CFLAGS+=-DLIBC_RCS -DSYSLIBC_RCS -I${.CURDIR}/../libc/include
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CFLAGS+=-DPTHREAD_KERNEL -D_THREAD_SAFE -I${.CURDIR}/uthread
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CFLAGS+=-DPTHREAD_KERNEL -D_THREAD_SAFE -DNOPOLL -I${.CURDIR}/uthread
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# Uncomment this if you want libc_r to contain debug information for
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# thread locking.
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@ -1,4 +1,4 @@
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# $Id: Makefile,v 1.11 1998/06/09 23:25:13 jb Exp $
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# $Id: Makefile,v 1.12 1998/06/12 02:21:27 jb Exp $
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#
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# All library objects contain rcsid strings by default; they may be
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# excluded as a space-saving measure. To produce a library that does
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@ -9,7 +9,7 @@ LIB=c_r
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SHLIB_MAJOR= 3
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SHLIB_MINOR= 0
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CFLAGS+=-DLIBC_RCS -DSYSLIBC_RCS -I${.CURDIR}/../libc/include
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CFLAGS+=-DPTHREAD_KERNEL -D_THREAD_SAFE -I${.CURDIR}/uthread
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CFLAGS+=-DPTHREAD_KERNEL -D_THREAD_SAFE -DNOPOLL -I${.CURDIR}/uthread
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# Uncomment this if you want libc_r to contain debug information for
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# thread locking.
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@ -1,4 +1,4 @@
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# $Id: Makefile,v 1.11 1998/06/09 23:25:13 jb Exp $
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# $Id: Makefile,v 1.12 1998/06/12 02:21:27 jb Exp $
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#
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# All library objects contain rcsid strings by default; they may be
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# excluded as a space-saving measure. To produce a library that does
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@ -9,7 +9,7 @@ LIB=c_r
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SHLIB_MAJOR= 3
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SHLIB_MINOR= 0
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CFLAGS+=-DLIBC_RCS -DSYSLIBC_RCS -I${.CURDIR}/../libc/include
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CFLAGS+=-DPTHREAD_KERNEL -D_THREAD_SAFE -I${.CURDIR}/uthread
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CFLAGS+=-DPTHREAD_KERNEL -D_THREAD_SAFE -DNOPOLL -I${.CURDIR}/uthread
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# Uncomment this if you want libc_r to contain debug information for
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# thread locking.
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