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authorRoland McGrath <roland@hack.frob.com>2014-11-14 10:52:16 -0800
committerRoland McGrath <roland@hack.frob.com>2014-11-14 11:06:08 -0800
commit0781a7772ae1385fe8d7a734fdb35df81b1e6590 (patch)
tree5bd1a08fd612e0abe66455159940e22a15650fe0 /sysdeps/posix
parent5ae4fe60e68a6698afadbec00481be96096e3eb4 (diff)
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Remove sigvec.
Diffstat (limited to 'sysdeps/posix')
-rw-r--r--sysdeps/posix/sigvec.c181
1 files changed, 0 insertions, 181 deletions
diff --git a/sysdeps/posix/sigvec.c b/sysdeps/posix/sigvec.c
deleted file mode 100644
index 83ba755..0000000
--- a/sysdeps/posix/sigvec.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <signal.h>
-#include <errno.h>
-#include <stddef.h>
-
-/* Include macros to convert between `sigset_t' and old-style mask. */
-#include <sigset-cvt-mask.h>
-
-#ifndef SA_RESETHAND
-/* When sigaction lacks the extension bit for it,
- we use a wrapper handler to support SV_RESETHAND. */
-struct sigvec_wrapper_data
-{
- __sighandler_t sw_handler;
- unsigned int sw_mask;
-};
-
-static void sigvec_wrapper_handler (int sig) __THROW;
-
-static struct sigvec_wrapper_data sigvec_wrapper_data[NSIG];
-#endif
-
-
-/* If VEC is non-NULL, set the handler for SIG to the `sv_handler' member
- of VEC. The signals in `sv_mask' will be blocked while the handler runs.
- If the SV_RESETHAND bit is set in `sv_flags', the handler for SIG will be
- reset to SIG_DFL before `sv_handler' is entered. If OVEC is non-NULL,
- it is filled in with the old information for SIG. */
-int
-__sigvec (sig, vec, ovec)
- int sig;
- const struct sigvec *vec;
- struct sigvec *ovec;
-{
- struct sigaction old;
-
-#ifndef SA_RESETHAND
- if (vec == NULL || !(vec->sv_flags & SV_RESETHAND))
-#endif
- {
- struct sigaction new, *n;
-
- if (vec == NULL)
- n = NULL;
- else
- {
- __sighandler_t handler;
- unsigned int mask;
- unsigned int sv_flags;
- unsigned int sa_flags;
-
- handler = vec->sv_handler;
- mask = vec->sv_mask;
- sv_flags = vec->sv_flags;
- sa_flags = 0;
- if (sv_flags & SV_ONSTACK)
- {
-#ifdef SA_ONSTACK
- sa_flags |= SA_ONSTACK;
-#else
- __set_errno (ENOSYS);
- return -1;
-#endif
- }
-#ifdef SA_RESTART
- if (!(sv_flags & SV_INTERRUPT))
- sa_flags |= SA_RESTART;
-#endif
-#ifdef SA_RESETHAND
- if (sv_flags & SV_RESETHAND)
- sa_flags |= SA_RESETHAND;
-#endif
- n = &new;
- new.sa_handler = handler;
- if (sigset_set_old_mask (&new.sa_mask, mask) < 0)
- return -1;
- new.sa_flags = sa_flags;
- }
-
- if (__sigaction (sig, n, &old) < 0)
- return -1;
- }
-#ifndef SA_RESETHAND
- else
- {
- __sighandler_t handler;
- unsigned int mask;
- struct sigvec_wrapper_data *data;
- struct sigaction wrapper;
-
- handler = vec->sv_handler;
- mask = (unsigned int)vec->sv_mask;
- data = &sigvec_wrapper_data[sig];
- wrapper.sa_handler = sigvec_wrapper_handler;
- /* FIXME: should we set wrapper.sa_mask, wrapper.sa_flags?? */
- data->sw_handler = handler;
- data->sw_mask = mask;
-
- if (__sigaction (sig, &wrapper, &old) < 0)
- return -1;
- }
-#endif
-
- if (ovec != NULL)
- {
- __sighandler_t handler;
- unsigned int sv_flags;
- unsigned int sa_flags;
- unsigned int mask;
-
- handler = old.sa_handler;
- sv_flags = 0;
- sa_flags = old.sa_flags;
-#ifndef SA_RESETHAND
- if (handler == sigvec_wrapper_handler)
- {
- handler = sigvec_wrapper_data[sig].sw_handler;
- /* should we use data->sw_mask?? */
- sv_flags |= SV_RESETHAND;
- }
-#else
- if (sa_flags & SA_RESETHAND)
- sv_flags |= SV_RESETHAND;
-#endif
- mask = sigset_get_old_mask (&old.sa_mask);
-#ifdef SA_ONSTACK
- if (sa_flags & SA_ONSTACK)
- sv_flags |= SV_ONSTACK;
-#endif
-#ifdef SA_RESTART
- if (!(sa_flags & SA_RESTART))
-#endif
- sv_flags |= SV_INTERRUPT;
- ovec->sv_handler = handler;
- ovec->sv_mask = (int)mask;
- ovec->sv_flags = (int)sv_flags;
- }
-
- return 0;
-}
-
-weak_alias (__sigvec, sigvec)
-
-#ifndef SA_RESETHAND
-static void
-sigvec_wrapper_handler (sig)
- int sig;
-{
- struct sigvec_wrapper_data *data;
- struct sigaction act;
- int save;
- __sighandler_t handler;
-
- data = &sigvec_wrapper_data[sig];
- act.sa_handler = SIG_DFL;
- act.sa_flags = 0;
- sigset_set_old_mask (&act.sa_mask, data->sw_mask);
- handler = data->sw_handler;
- save = errno;
- (void) __sigaction (sig, &act, (struct sigaction *) NULL);
- __set_errno (save);
-
- (*handler) (sig);
-}
-#endif