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Make improvements

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- Improved async signal safety of read() particularly for longjmp()
- Started adding cancel cleanup handlers for locks / etc on Windows
- Make /dev/tty work better particularly for uses like `foo | less`
- Eagerly read console input into a linked list, so poll can signal
- Fix some libc definitional bugs, which configure scripts detected
This commit is contained in:
Justine Tunney 2023-09-21 07:30:39 -07:00
parent d6c2830850
commit 0c5dd7b342
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GPG key ID: BE714B4575D6E328
85 changed files with 1062 additions and 671 deletions
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2
libc/proc/proc.c
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@ -144,7 +144,7 @@ textwindows struct Proc *__proc_new(void) {
struct Dll *e;
struct Proc *proc = 0;
int i, n = ARRAYLEN(__proc.pool);
if (atomic_load_explicit(&__proc.allocated, memory_order_relaxed) < n &&
if (atomic_load_explicit(&__proc.allocated, memory_order_acquire) < n &&
(i = atomic_fetch_add(&__proc.allocated, 1)) < n) {
proc = __proc.pool + i;
} else {