diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_sigqueue.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_sigqueue.c | 155 |
1 files changed, 150 insertions, 5 deletions
diff --git a/contrib/netbsd-tests/lib/libc/sys/t_sigqueue.c b/contrib/netbsd-tests/lib/libc/sys/t_sigqueue.c index 6686f02..e911d42 100644 --- a/contrib/netbsd-tests/lib/libc/sys/t_sigqueue.c +++ b/contrib/netbsd-tests/lib/libc/sys/t_sigqueue.c @@ -1,4 +1,4 @@ -/* $NetBSD: t_sigqueue.c,v 1.4 2011/07/07 16:31:11 jruoho Exp $ */ +/* $NetBSD: t_sigqueue.c,v 1.6 2016/08/04 06:43:43 christos Exp $ */ /*- * Copyright (c) 2011 The NetBSD Foundation, Inc. @@ -30,8 +30,7 @@ */ #include <sys/cdefs.h> -__RCSID("$NetBSD: t_sigqueue.c,v 1.4 2011/07/07 16:31:11 jruoho Exp $"); - +__RCSID("$NetBSD: t_sigqueue.c,v 1.6 2016/08/04 06:43:43 christos Exp $"); #include <atf-c.h> #include <errno.h> @@ -40,6 +39,11 @@ __RCSID("$NetBSD: t_sigqueue.c,v 1.4 2011/07/07 16:31:11 jruoho Exp $"); #include <sched.h> #include <unistd.h> +#ifdef __FreeBSD__ +#include <err.h> +#include <stdio.h> +#endif + static void handler(int, siginfo_t *, void *); #define VALUE (int)0xc001dad1 @@ -77,7 +81,7 @@ ATF_TC_BODY(sigqueue_basic, tc) sv.sival_int = VALUE; #ifdef __FreeBSD__ - /* + /* * From kern_sig.c: * Specification says sigqueue can only send signal to single process. */ @@ -99,17 +103,158 @@ ATF_TC_HEAD(sigqueue_err, tc) ATF_TC_BODY(sigqueue_err, tc) { - union sigval sv; + static union sigval sv; errno = 0; ATF_REQUIRE_ERRNO(EINVAL, sigqueue(getpid(), -1, sv) == -1); } +static int signals[] = { + SIGINT, SIGRTMIN + 1, SIGINT, SIGRTMIN + 0, SIGRTMIN + 2, + SIGQUIT, SIGRTMIN + 1 +}; +#ifdef __arraycount +#define CNT __arraycount(signals) +#else +#define CNT (sizeof(signals) / sizeof(signals[0])) +#endif + +static sig_atomic_t count = 0; +static int delivered[CNT]; + +static void +myhandler(int signo, siginfo_t *info, void *context) +{ + delivered[count++] = signo; +#ifdef __FreeBSD__ + printf("Signal #%zu: signo: %d\n", (size_t)count, signo); +#endif +} + +static int +asc(const void *a, const void *b) +{ + const int *ia = a, *ib = b; + return *ib - *ia; +} + +/* + * given a array of signals to be delivered in tosend of size len + * place in ordered the signals to be delivered in delivery order + * and return the number of signals that should be delivered + */ +static size_t +sigorder(int *ordered, const int *tosend, size_t len) +{ + memcpy(ordered, tosend, len * sizeof(*tosend)); + qsort(ordered, len, sizeof(*ordered), asc); + if (len == 1) + return len; + +#ifdef __FreeBSD__ + /* + * Don't dedupe signal numbers (bug 212173) + * + * Per kib's comment.. + * + * " + * OTOH, FreeBSD behaviour is to treat all signals as realtime while + * there is no mem shortage and siginfo can be allocated. In + * particular, signals < SIGRTMIN are not collapsed when queued more + * than once. + * " + */ + + return len; +#else + + size_t i, j; + for (i = 0, j = 0; i < len - 1; i++) { + if (ordered[i] >= SIGRTMIN) + continue; + if (j == 0) + j = i + 1; + while (ordered[i] == ordered[j] && j < len) + j++; + if (j == len) + break; + ordered[i + 1] = ordered[j]; + } + return i + 1; +#endif +} + +ATF_TC(sigqueue_rt); +ATF_TC_HEAD(sigqueue_rt, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test queuing of real-time signals"); +} + +ATF_TC_BODY(sigqueue_rt, tc) +{ + pid_t pid; + union sigval val; + struct sigaction act; + int ordered[CNT]; + struct sigaction oact[CNT]; + size_t ndelivered; + + ndelivered = sigorder(ordered, signals, CNT); + + act.sa_flags = SA_SIGINFO; + act.sa_sigaction = myhandler; + sigemptyset(&act.sa_mask); + for (size_t i = 0; i < ndelivered; i++) + ATF_REQUIRE(sigaction(ordered[i], &act, &oact[i]) != -1); + + val.sival_int = 0; + pid = getpid(); + + sigset_t mask, orig; + sigemptyset(&mask); + for (size_t i = 0; i < CNT; i++) +#ifdef __FreeBSD__ + if (sigaddset(&mask, signals[i]) == -1) + warn("sigaddset"); +#else + sigaddset(&mask, signals[i]); +#endif + + ATF_REQUIRE(sigprocmask(SIG_BLOCK, &mask, &orig) != -1); + + for (size_t i = 0; i < CNT; i++) + ATF_REQUIRE(sigqueue(pid, signals[i], val) != -1); + + ATF_REQUIRE(sigprocmask(SIG_UNBLOCK, &mask, &orig) != -1); + sleep(1); +#ifdef __FreeBSD__ + ATF_CHECK_MSG((size_t)count == ndelivered, + "count %zu != ndelivered %zu", (size_t)count, ndelivered); +#else + ATF_REQUIRE_MSG((size_t)count == ndelivered, + "count %zu != ndelivered %zu", (size_t)count, ndelivered); +#endif + for (size_t i = 0; i < ndelivered; i++) + ATF_REQUIRE_MSG(ordered[i] == delivered[i], + "%zu: ordered %d != delivered %d", + i, ordered[i], delivered[i]); + +#ifdef __FreeBSD__ + if (count > ndelivered) + for (size_t i = ndelivered; i < count; i++) + printf("Undelivered signal #%zu: %d\n", i, ordered[i]); +#endif + + for (size_t i = 0; i < ndelivered; i++) + ATF_REQUIRE(sigaction(signals[i], &oact[i], NULL) != -1); +} + ATF_TP_ADD_TCS(tp) { ATF_TP_ADD_TC(tp, sigqueue_basic); ATF_TP_ADD_TC(tp, sigqueue_err); + ATF_TP_ADD_TC(tp, sigqueue_rt); return atf_no_error(); } |
