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Add more raw system calls to redbean

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We now have execve, setitimer, sigaction, sigsuspend, and sigprocmask.
This commit is contained in:
Justine Tunney 2022-04-13 14:43:42 -07:00
parent 281a0f2730
commit fb7e8ef1e6
8 changed files with 329 additions and 73 deletions
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10
libc/calls/sigsuspend.c
View file

@ -32,6 +32,9 @@
/**
* Blocks until SIG ∉ MASK is delivered to process.
*
* This temporarily replaces the signal mask until a signal that it
* doesn't contain is delivered.
*
* @param ignore is a bitset of signals to block temporarily, which if
* NULL is equivalent to passing an empty signal set
* @return -1 w/ EINTR (or possibly EFAULT)
@ -43,8 +46,7 @@ int sigsuspend(const sigset_t *ignore) {
char buf[41];
long ms, totoms;
sigset_t save, mask, *arg;
STRACE("sigsuspend(%s) → [...]",
__strace_sigset(buf, sizeof(buf), 0, ignore));
STRACE("sigsuspend(%s) → ...", __strace_sigset(buf, sizeof(buf), 0, ignore));
if (IsAsan() && ignore && !__asan_is_valid(ignore, sizeof(*ignore))) {
rc = efault();
} else if (IsXnu() || IsOpenbsd()) {
@ -79,7 +81,7 @@ int sigsuspend(const sigset_t *ignore) {
ms += __SIG_POLLING_INTERVAL_MS;
if (ms >= __SIG_LOGGING_INTERVAL_MS) {
totoms += ms, ms = 0;
STRACE("[...] sigsuspending for %'lums...", totoms);
STRACE("... sigsuspending for %'lums...", totoms);
}
#endif
} while (1);
@ -89,6 +91,6 @@ int sigsuspend(const sigset_t *ignore) {
// TODO(jart): sigsuspend metal support
rc = enosys();
}
STRACE("[...] sigsuspend → %d% m", rc);
STRACE("...sigsuspend → %d% m", rc);
return rc;
}