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Make improvements

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- Document redbean's argon2 module
- Fix regressions in cthreads library
- Make testlib work better with threads
- Give the cthreads library lots of love
- Remove some of the stdio assembly code
- Implement getloadavg() across platforms
- Code size optimizations for errnos, etc.
- Only check for signals in main thread on Windows
- Make errnos for dup2 / dup3 consistent with posix

This change also fixes a bug in the argon2 module, where the NUL
terminator was being included in the hash encoded ascii string. This
shouldn't require any database migrations to folks who found this module
and productionized it, since the argon2 library treats it as a c string.
This commit is contained in:
Justine Tunney 2022-05-27 13:25:46 -07:00
parent cb67223051
commit de5de19004
234 changed files with 1728 additions and 1993 deletions
Download patch file Download diff file Expand all files Collapse all files

39
libc/calls/sig2.c
View file

@ -66,7 +66,7 @@ static textwindows void __sig_free(struct Signal *mem) {
static textwindows struct Signal *__sig_remove(void) {
struct Signal *prev, *res;
if (__sig.queue) {
_spinlock(&__sig_lock);
__sig_lock();
for (prev = 0, res = __sig.queue; res; prev = res, res = res->next) {
if (!sigismember(&__sig.mask, res->sig)) {
if (res == __sig.queue) {
@ -80,7 +80,7 @@ static textwindows struct Signal *__sig_remove(void) {
STRACE("%G is masked", res->sig);
}
}
_spunlock(&__sig_lock);
__sig_unlock();
} else {
res = 0;
}
@ -99,7 +99,7 @@ static privileged bool __sig_deliver(bool restartable, int sig, int si_code,
STRACE("delivering %G", sig);
// enter the signal
_spinlock(&__sig_lock);
__sig_lock();
rva = __sighandrvas[sig];
flags = __sighandflags[sig];
if ((~flags & SA_NODEFER) || (flags & SA_RESETHAND)) {
@ -110,7 +110,7 @@ static privileged bool __sig_deliver(bool restartable, int sig, int si_code,
// signal handler. in that case you must use SA_NODEFER.
__sighandrvas[sig] = (int32_t)(intptr_t)SIG_DFL;
}
_spunlock(&__sig_lock);
__sig_unlock();
// setup the somewhat expensive information args
// only if they're requested by the user in sigaction()
@ -196,9 +196,9 @@ privileged bool __sig_handle(bool restartable, int sig, int si_code,
textwindows int __sig_raise(int sig, int si_code) {
int rc;
int candeliver;
_spinlock(&__sig_lock);
__sig_lock();
candeliver = !sigismember(&__sig.mask, sig);
_spunlock(&__sig_lock);
__sig_unlock();
switch (candeliver) {
case 1:
__sig_handle(false, sig, si_code, 0);
@ -213,26 +213,31 @@ textwindows int __sig_raise(int sig, int si_code) {
/**
* Enqueues generic signal for delivery on New Technology.
* @return 0 if enqueued, otherwise -1 w/ errno
* @return 0 on success, otherwise -1 w/ errno
* @threadsafe
*/
textwindows int __sig_add(int sig, int si_code) {
int rc;
struct Signal *mem;
if (1 <= sig && sig <= NSIG) {
STRACE("enqueuing %G", sig);
_spinlock(&__sig_lock);
++__sig_count;
if ((mem = __sig_alloc())) {
mem->sig = sig;
mem->si_code = si_code;
mem->next = __sig.queue;
__sig.queue = mem;
__sig_lock();
if (__sighandrvas[sig] == (unsigned)(intptr_t)SIG_IGN) {
STRACE("ignoring %G", sig);
rc = 0;
} else {
rc = enomem();
STRACE("enqueuing %G", sig);
++__sig_count;
if ((mem = __sig_alloc())) {
mem->sig = sig;
mem->si_code = si_code;
mem->next = __sig.queue;
__sig.queue = mem;
rc = 0;
} else {
rc = enomem();
}
}
_spunlock(&__sig_lock);
__sig_unlock();
} else {
rc = einval();
}