This is a maintenance fork
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

86 lines
4.0 KiB

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/rusage.h"
#include "libc/conv/conv.h"
#include "libc/macros.h"
#include "libc/nt/accounting.h"
#include "libc/nt/enum/status.h"
#include "libc/nt/enum/wait.h"
#include "libc/nt/runtime.h"
#include "libc/nt/struct/filetime.h"
#include "libc/nt/synchronization.h"
#include "libc/runtime/missioncritical.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/w.h"
#include "libc/sysv/errfuns.h"
textwindows int wait4$nt(int pid, int *opt_out_wstatus, int options,
struct rusage *opt_out_rusage) {
int pids[64];
int64_t handles[64];
uint32_t dwExitCode;
uint32_t i, count, timeout;
struct NtFileTime createfiletime, exitfiletime, kernelfiletime, userfiletime;
if (pid != -1) {
if (!isfdkind(pid, kFdProcess)) {
return echild();
}
handles[0] = g_fds.p[pid].handle;
pids[0] = pid;
count = 1;
} else {
for (count = 0, i = g_fds.n; i--;) {
if (g_fds.p[i].kind == kFdProcess) {
pids[count] = i;
handles[count] = g_fds.p[i].handle;
if (++count == ARRAYLEN(handles)) break;
}
}
if (!count) {
return echild();
}
}
for (;;) {
dwExitCode = kNtStillActive;
if (options & WNOHANG) {
i = WaitForMultipleObjects(count, handles, false, 0);
if (i == kNtWaitTimeout) return 0;
} else {
i = WaitForMultipleObjects(count, handles, false, -1);
}
if (i == kNtWaitFailed) return winerr();
if (!GetExitCodeProcess(handles[i], &dwExitCode)) return winerr();
if (dwExitCode == kNtStillActive) continue;
if (opt_out_wstatus) { /* @see WEXITSTATUS() */
*opt_out_wstatus = (dwExitCode & 0xff) << 8;
}
if (opt_out_rusage) {
memset(opt_out_rusage, 0, sizeof(*opt_out_rusage));
GetProcessTimes(GetCurrentProcess(), &createfiletime, &exitfiletime,
&kernelfiletime, &userfiletime);
FileTimeToTimeVal(&opt_out_rusage->ru_utime, userfiletime);
FileTimeToTimeVal(&opt_out_rusage->ru_stime, kernelfiletime);
}
return pids[i];
}
}