vasilito
068a1ca63e
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
P1 timeout/default-resolution, P2 live preload guard (subsumed by
panic fixes + cap), P3 live image safe read, P4 large ISO boot,
redox.patch — to be applied in dedicated rebase session.
firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).
fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.
fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/* pselect - synchronous I/O multiplexing
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Copyright 2011-2025 Free Software Foundation, Inc.
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This file is part of gnulib.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* written by Paul Eggert */
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#include <config.h>
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#include <sys/select.h>
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#include <errno.h>
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#include <signal.h>
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/* Examine the size-NFDS file descriptor sets in RFDS, WFDS, and XFDS
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to see whether some of their descriptors are ready for reading,
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ready for writing, or have exceptions pending. Wait for at most
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TIMEOUT seconds, and use signal mask SIGMASK while waiting. A null
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pointer parameter stands for no descriptors, an infinite timeout,
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or an unaffected signal mask. */
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#if !HAVE_PSELECT
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int
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pselect (int nfds, fd_set *restrict rfds,
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fd_set *restrict wfds, fd_set *restrict xfds,
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struct timespec const *restrict timeout,
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sigset_t const *restrict sigmask)
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{
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int select_result;
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sigset_t origmask;
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struct timeval tv, *tvp;
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if (nfds < 0 || nfds > FD_SETSIZE)
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{
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errno = EINVAL;
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return -1;
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}
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if (timeout)
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{
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if (! (0 <= timeout->tv_nsec && timeout->tv_nsec < 1000000000))
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{
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errno = EINVAL;
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return -1;
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}
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tv = (struct timeval) {
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.tv_sec = timeout->tv_sec,
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.tv_usec = (timeout->tv_nsec + 999) / 1000
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};
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tvp = &tv;
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}
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else
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tvp = NULL;
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/* Signal mask munging should be atomic, but this is the best we can
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do in this emulation. */
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if (sigmask)
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pthread_sigmask (SIG_SETMASK, sigmask, &origmask);
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select_result = select (nfds, rfds, wfds, xfds, tvp);
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if (sigmask)
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{
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int select_errno = errno;
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pthread_sigmask (SIG_SETMASK, &origmask, NULL);
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errno = select_errno;
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}
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return select_result;
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}
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#else /* HAVE_PSELECT */
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# include <unistd.h>
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# undef pselect
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int
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rpl_pselect (int nfds, fd_set *restrict rfds,
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fd_set *restrict wfds, fd_set *restrict xfds,
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struct timespec const *restrict timeout,
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sigset_t const *restrict sigmask)
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{
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int i;
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/* FreeBSD 8.2 has a bug: it does not always detect invalid fds. */
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if (nfds < 0 || nfds > FD_SETSIZE)
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{
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errno = EINVAL;
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return -1;
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}
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for (i = 0; i < nfds; i++)
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{
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if (((rfds && FD_ISSET (i, rfds))
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|| (wfds && FD_ISSET (i, wfds))
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|| (xfds && FD_ISSET (i, xfds)))
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&& dup2 (i, i) != i)
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return -1;
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}
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return pselect (nfds, rfds, wfds, xfds, timeout, sigmask);
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}
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#endif
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