mirror of
https://github.com/jart/cosmopolitan.git
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39bf41f4eb
- Python static hello world now 1.8mb
- Python static fully loaded now 10mb
- Python HTTPS client now uses MbedTLS
- Python REPL now completes import stmts
- Increase stack size for Python for now
- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
- Add optimized code path for Intel SHA-NI
- Get more Python unit tests passing faster
- Get Python help() pagination working on NT
- Python hashlib now supports MbedTLS PBKDF2
- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
- Add basic chmod() implementation for Windows NT
- Add Cosmo's best functions to Python cosmo module
- Pin function trace indent depth to that of caller
- Show memory diagram on invalid access in MODE=dbg
- Differentiate stack overflow on crash in MODE=dbg
- Add stb_truetype and tools for analyzing font files
- Upgrade to UNICODE 13 and reduce its binary footprint
- COMPILE.COM now logs resource usage of build commands
- Start implementing basic poll() support on bare metal
- Set getauxval(AT_EXECFN) to GetModuleFileName() on NT
- Add descriptions to strerror() in non-TINY build modes
- Add COUNTBRANCH() macro to help with micro-optimizations
- Make error / backtrace / asan / memory code more unbreakable
- Add fast perfect C implementation of μ-Law and a-Law audio codecs
- Make strtol() functions consistent with other libc implementations
- Improve Linenoise implementation (see also github.com/jart/bestline)
- COMPILE.COM now suppresses stdout/stderr of successful build commands
102 lines
4.4 KiB
C
102 lines
4.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/assert.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/rusage.h"
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#include "libc/calls/sysdebug.internal.h"
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#include "libc/fmt/conv.h"
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#include "libc/macros.internal.h"
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#include "libc/nt/accounting.h"
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#include "libc/nt/enum/status.h"
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#include "libc/nt/enum/wait.h"
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#include "libc/nt/runtime.h"
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#include "libc/nt/struct/filetime.h"
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#include "libc/nt/synchronization.h"
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#include "libc/runtime/runtime.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/w.h"
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#include "libc/sysv/errfuns.h"
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textwindows int sys_wait4_nt(int pid, int *opt_out_wstatus, int options,
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struct rusage *opt_out_rusage) {
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int pids[64];
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int64_t handles[64];
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uint32_t dwExitCode;
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uint32_t i, count, timeout;
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struct NtFileTime createfiletime, exitfiletime, kernelfiletime, userfiletime;
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if (pid != -1) {
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if (!__isfdkind(pid, kFdProcess)) {
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return echild();
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}
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handles[0] = g_fds.p[pid].handle;
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pids[0] = pid;
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count = 1;
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} else {
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for (count = 0, i = g_fds.n; i--;) {
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if (g_fds.p[i].kind == kFdProcess) {
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pids[count] = i;
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handles[count] = g_fds.p[i].handle;
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if (++count == ARRAYLEN(handles)) break;
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}
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}
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if (!count) {
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return echild();
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}
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}
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for (;;) {
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dwExitCode = kNtStillActive;
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if (options & WNOHANG) {
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i = WaitForMultipleObjects(count, handles, false, 0);
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if (i == kNtWaitTimeout) {
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return 0;
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}
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} else {
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i = WaitForMultipleObjects(count, handles, false, -1);
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}
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if (i == kNtWaitFailed) {
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SYSDEBUG("WaitForMultipleObjects failed %d", GetLastError());
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return __winerr();
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}
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assert(__isfdkind(pids[i], kFdProcess));
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if (!GetExitCodeProcess(handles[i], &dwExitCode)) {
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SYSDEBUG("GetExitCodeProcess failed %d", GetLastError());
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return __winerr();
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}
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if (dwExitCode == kNtStillActive) continue;
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if (opt_out_wstatus) { /* @see WEXITSTATUS() */
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*opt_out_wstatus = (dwExitCode & 0xff) << 8;
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}
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if (opt_out_rusage) {
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bzero(opt_out_rusage, sizeof(*opt_out_rusage));
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if (GetProcessTimes(g_fds.p[pids[i]].handle, &createfiletime,
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&exitfiletime, &kernelfiletime, &userfiletime)) {
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opt_out_rusage->ru_utime =
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WindowsDurationToTimeVal(ReadFileTime(userfiletime));
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opt_out_rusage->ru_stime =
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WindowsDurationToTimeVal(ReadFileTime(kernelfiletime));
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} else {
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SYSDEBUG("GetProcessTimes failed %d", GetLastError());
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}
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}
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CloseHandle(g_fds.p[pids[i]].handle);
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g_fds.p[pids[i]].kind = kFdEmpty;
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return pids[i];
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}
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}
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