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| author | jhb <jhb@FreeBSD.org> | 2001-01-23 23:59:38 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2001-01-23 23:59:38 +0000 |
| commit | 80649f2bc14466af487fac64c40a88ede7c20efc (patch) | |
| tree | 781ea883b6ed60cc23e615d8c1d3f2f82b901dd5 /sys/i386/ibcs2/ibcs2_signal.c | |
| parent | f5fbc62142d116619713e03561896c38676e6f5c (diff) | |
| download | FreeBSD-src-80649f2bc14466af487fac64c40a88ede7c20efc.zip FreeBSD-src-80649f2bc14466af487fac64c40a88ede7c20efc.tar.gz | |
Proc locking.
Diffstat (limited to 'sys/i386/ibcs2/ibcs2_signal.c')
| -rw-r--r-- | sys/i386/ibcs2/ibcs2_signal.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/sys/i386/ibcs2/ibcs2_signal.c b/sys/i386/ibcs2/ibcs2_signal.c index f8829f1..70b5f57 100644 --- a/sys/i386/ibcs2/ibcs2_signal.c +++ b/sys/i386/ibcs2/ibcs2_signal.c @@ -318,13 +318,16 @@ ibcs2_sigsys(p, uap) p->p_retval[0] = (int)sa.sa_handler; /* special sigset() check */ - if(IBCS2_SIGCALL(SCARG(uap, sig)) == IBCS2_SIGSET_MASK) + if(IBCS2_SIGCALL(SCARG(uap, sig)) == IBCS2_SIGSET_MASK) { + PROC_LOCK(p); /* check to make sure signal is not blocked */ if(sigismember(&p->p_sigmask, signum)) { /* return SIG_HOLD and unblock signal*/ p->p_retval[0] = (int)IBCS2_SIG_HOLD; SIGDELSET(p->p_sigmask, signum); } + PROC_UNLOCK(p); + } return 0; } @@ -369,7 +372,9 @@ ibcs2_sigsys(p, uap) sigset_t mask; struct sigsuspend_args sa; + PROC_LOCK(p); mask = p->p_sigmask; + PROC_UNLOCK(p); SIGDELSET(mask, signum); SCARG(&sa, sigmask) = &mask; return sigsuspend(p, &sa); @@ -391,7 +396,9 @@ ibcs2_sigprocmask(p, uap) if (SCARG(uap, oset) != NULL) { /* Fix the return value first if needed */ + PROC_LOCK(p); bsd_to_ibcs2_sigset(&p->p_sigmask, &iss); + PROC_UNLOCK(p); if ((error = copyout(&iss, SCARG(uap, oset), sizeof(iss))) != 0) return error; } @@ -405,7 +412,7 @@ ibcs2_sigprocmask(p, uap) ibcs2_to_bsd_sigset(&iss, &bss); - (void) splhigh(); + PROC_LOCK(p); switch (SCARG(uap, how)) { case IBCS2_SIG_BLOCK: @@ -427,7 +434,7 @@ ibcs2_sigprocmask(p, uap) break; } - (void) spl0(); + PROC_UNLOCK(p); return error; } @@ -440,8 +447,10 @@ ibcs2_sigpending(p, uap) sigset_t bss; ibcs2_sigset_t iss; + PROC_LOCK(p); bss = p->p_siglist; SIGSETAND(bss, p->p_sigmask); + PROC_UNLOCK(p); bsd_to_ibcs2_sigset(&bss, &iss); return copyout(&iss, SCARG(uap, mask), sizeof(iss)); @@ -473,7 +482,9 @@ ibcs2_pause(p, uap) sigset_t mask; struct sigsuspend_args sa; + PROC_LOCK(p); mask = p->p_sigmask; + PROC_UNLOCK(p); SCARG(&sa, sigmask) = &mask; return sigsuspend(p, &sa); } |
