Mercurial > hg > dhcpcd
changeset 1857:a03db7acafeb draft
Complete transition to pollts(2)
| author | Roy Marples <roy@marples.name> |
|---|---|
| date | Mon, 18 Feb 2013 21:35:24 +0000 |
| parents | 84fd9cd991df |
| children | cfac5a32a2d6 |
| files | compat/pollts.c compat/pollts.h compat/ppoll.c compat/ppoll.h compat/pselect.c configure |
| diffstat | 6 files changed, 108 insertions(+), 109 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/compat/pollts.c Mon Feb 18 21:35:24 2013 +0000 @@ -0,0 +1,63 @@ +/* + * dhcpcd - DHCP client daemon + * Copyright (c) 2006-2013 Roy Marples <roy@marples.name> + * All rights reserved + + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/time.h> +#include <sys/types.h> + +#include <limits.h> +#include <poll.h> +#include <signal.h> +#include <unistd.h> + +#include "ppoll.h" + +#warning "This pollts(2) implementation is not entirely race condition safe." +#warning "Only operating system support for pollts(2) can correct this." + +int +pollts(struct pollfd *restrict fds, nfds_t nfds, + const struct timespec *restrict ts, const sigset_t *restrict sigmask) +{ + int r, timeout; + sigset_t oldset; + + if (ts == NULL) + timeout = -1; + else if (ts->tv_sec > INT_MAX / 1000 || + (ts->tv_sec == INT_MAX / 1000 && + (ts->tv_nsec + 999999) / 1000000 > INT_MAX % 1000000)) + timeout = INT_MAX; + else + timeout = ts->tv_sec * 1000 + (ts->tv_nsec + 999999) / 1000000; + if (sigmask && sigprocmask(SIG_SETMASK, sigmask, &oldset) == -1) + return -1; + r = poll(fds, nfds, timeout); + if (sigmask && sigprocmask(SIG_SETMASK, &oldset, NULL) == -1) + return -1; + + return r; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/compat/pollts.h Mon Feb 18 21:35:24 2013 +0000 @@ -0,0 +1,39 @@ +/* + * dhcpcd - DHCP client daemon + * Copyright (c) 2006-2013 Roy Marples <roy@marples.name> + * All rights reserved + + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef PPOLL_H +#define PPOLL_H + +#include <poll.h> +#include <signal.h> +#include <time.h> + +int +pollts(struct pollfd *restrict, nfds_t, const struct timespec *restrict, + const sigset_t *restrict); + +#endif
--- a/compat/ppoll.c Mon Feb 18 21:25:07 2013 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,63 +0,0 @@ -/* - * dhcpcd - DHCP client daemon - * Copyright (c) 2006-2013 Roy Marples <roy@marples.name> - * All rights reserved - - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/time.h> -#include <sys/types.h> - -#include <limits.h> -#include <poll.h> -#include <signal.h> -#include <unistd.h> - -#include "ppoll.h" - -#warning "This ppoll(2) implementation is not entirely race condition safe." -#warning "Only operating system support for ppoll(2) can correct this." - -int -ppoll(struct pollfd *restrict fds, nfds_t nfds, - const struct timespec *restrict ts, const sigset_t *restrict sigmask) -{ - int r, timeout; - sigset_t oldset; - - if (ts == NULL) - timeout = -1; - else if (ts->tv_sec > INT_MAX / 1000 || - (ts->tv_sec == INT_MAX / 1000 && - (ts->tv_nsec + 999999) / 1000000 > INT_MAX % 1000000)) - timeout = INT_MAX; - else - timeout = ts->tv_sec * 1000 + (ts->tv_nsec + 999999) / 1000000; - if (sigmask && sigprocmask(SIG_SETMASK, sigmask, &oldset) == -1) - return -1; - r = poll(fds, nfds, timeout); - if (sigmask && sigprocmask(SIG_SETMASK, &oldset, NULL) == -1) - return -1; - - return r; -}
--- a/compat/ppoll.h Mon Feb 18 21:25:07 2013 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,39 +0,0 @@ -/* - * dhcpcd - DHCP client daemon - * Copyright (c) 2006-2013 Roy Marples <roy@marples.name> - * All rights reserved - - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef PPOLL_H -#define PPOLL_H - -#include <poll.h> -#include <signal.h> -#include <time.h> - -int -ppoll(struct pollfd *restrict, nfds_t, const struct timespec *restrict, - const sigset_t *restrict); - -#endif
--- a/compat/pselect.c Mon Feb 18 21:25:07 2013 +0000 +++ b/compat/pselect.c Mon Feb 18 21:35:24 2013 +0000 @@ -33,10 +33,10 @@ #include <signal.h> #include <unistd.h> -#include "ppoll.h" +#include "pollts.h" int -ppoll(struct pollfd *restrict fds, nfds_t nfds, +pollts(struct pollfd *restrict fds, nfds_t nfds, const struct timespec *restrict ts, const sigset_t *restrict sigmask) { fd_set read_fds;
--- a/configure Mon Feb 18 21:25:07 2013 +0000 +++ b/configure Mon Feb 18 21:35:24 2013 +0000 @@ -563,7 +563,6 @@ POLLTS=no echo "no" fi - echo "$POLLTS" rm -f _ppoll.c _ppoll fi if [ "$POLLTS" = no ]; then @@ -589,16 +588,16 @@ yes) ;; ppoll) - echo "#include \"compat/ppoll.h\"" >>$CONFIG_H + echo "#include \"compat/pollts.h\"" >>$CONFIG_H echo "#define pollts ppoll" >>$CONFIG_H ;; pselect) echo "COMPAT_SRCS+= compat/pselect.c" >>$CONFIG_MK - echo "#include \"compat/ppoll.h\"" >>$CONFIG_H + echo "#include \"compat/pollts.h\"" >>$CONFIG_H ;; *) - echo "COMPAT_SRCS+= compat/ppoll.c" >>$CONFIG_MK - echo "#include \"compat/ppoll.h\"" >>$CONFIG_H + echo "COMPAT_SRCS+= compat/pollts.c" >>$CONFIG_MK + echo "#include \"compat/pollts.h\"" >>$CONFIG_H ;; esac
