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Improve threading support further

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This commit is contained in:
Justine Tunney 2022-05-17 04:14:28 -07:00
parent 8bfb70ca3f
commit ce71677156
61 changed files with 882 additions and 747 deletions
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12
libc/calls/wait4-nt.c
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@ -25,6 +25,7 @@
#include "libc/calls/struct/rusage.h"
#include "libc/fmt/conv.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/spinlock.h"
#include "libc/macros.internal.h"
#include "libc/nt/accounting.h"
#include "libc/nt/enum/accessmask.h"
@ -57,6 +58,7 @@ static textwindows int sys_wait4_nt_impl(int pid, int *opt_out_wstatus,
struct NtProcessMemoryCountersEx memcount;
struct NtFileTime createfiletime, exitfiletime, kernelfiletime, userfiletime;
if (_check_interrupts(true, g_fds.p)) return eintr();
_spinlock(&__fds_lock);
if (pid != -1 && pid != 0) {
if (pid < 0) {
/* XXX: this is sloppy */
@ -67,15 +69,17 @@ static textwindows int sys_wait4_nt_impl(int pid, int *opt_out_wstatus,
if (!__isfdopen(pid) &&
(handle = OpenProcess(kNtSynchronize | kNtProcessQueryInformation,
true, pid))) {
if ((pid = __reservefd(-1)) != -1) {
if ((pid = __reservefd_unlocked(-1)) != -1) {
g_fds.p[pid].kind = kFdProcess;
g_fds.p[pid].handle = handle;
g_fds.p[pid].flags = O_CLOEXEC;
} else {
_spunlock(&__fds_lock);
CloseHandle(handle);
return echild();
}
} else {
_spunlock(&__fds_lock);
return echild();
}
}
@ -84,8 +88,12 @@ static textwindows int sys_wait4_nt_impl(int pid, int *opt_out_wstatus,
count = 1;
} else {
count = __sample_pids(pids, handles, false);
if (!count) return echild();
if (!count) {
_spunlock(&__fds_lock);
return echild();
}
}
_spunlock(&__fds_lock);
for (;;) {
if (_check_interrupts(true, 0)) return eintr();
dwExitCode = kNtStillActive;