mirror of
https://github.com/jart/cosmopolitan.git
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a6baba1b07
The WIN32 CreateProcess() function does not require an .exe or .com suffix in order to spawn an executable. Now that we have Cosmo bash we're no longer so dependent on the cmd.exe prompt.
89 lines
3.9 KiB
C
89 lines
3.9 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 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/calls/calls.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sysv/consts/prio.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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void SetUp(void) {
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if (getpriority(PRIO_PROCESS, getpid()) != 0) {
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kprintf("getpriority_test must be launched at priority zero\n");
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exit(0);
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}
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}
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TEST(getpriority, badWhich_einval) {
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ASSERT_SYS(EINVAL, -1, getpriority(-1, 0));
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ASSERT_SYS(EINVAL, -1, setpriority(-1, 0, 0));
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}
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TEST(getpriority, lowerPriorityOfSelf) {
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SPAWN(fork);
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ASSERT_SYS(0, 0, getpriority(PRIO_PROCESS, 0));
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ASSERT_SYS(0, 0, getpriority(PRIO_PROCESS, getpid()));
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ASSERT_SYS(0, 0, setpriority(PRIO_PROCESS, getpid(), 5));
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ASSERT_SYS(0, 5, getpriority(PRIO_PROCESS, getpid()));
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ASSERT_SYS(0, 5, getpriority(PRIO_PROCESS, 0));
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EXITS(0);
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}
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TEST(getpriority, higherPriorityOfSelf) {
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if (IsWindows() || getuid() == 0) {
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SPAWN(fork);
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ASSERT_SYS(0, 0, setpriority(PRIO_PROCESS, 0, -5));
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ASSERT_SYS(0, -5, getpriority(PRIO_PROCESS, 0));
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ASSERT_SYS(0, 0, setpriority(PRIO_PROCESS, 0, 0));
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EXITS(0);
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}
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}
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TEST(getpriority, lowerAndRaiseItAgain_notAllowed) {
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if (1) return; // this behavior seems limited to modern linux
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SPAWN(fork);
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ASSERT_SYS(0, 0, setpriority(PRIO_PROCESS, 0, 5));
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ASSERT_SYS(EACCES, -1, setpriority(PRIO_PROCESS, 0, 4));
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EXITS(0);
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}
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TEST(getpriority, lowerPriorityOfSubprocess) {
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int pid, ws;
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sigset_t ss, oldss;
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sigemptyset(&ss);
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sigaddset(&ss, SIGUSR1);
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ASSERT_SYS(0, 0, sigprocmask(SIG_BLOCK, &ss, &oldss));
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ASSERT_NE(-1, (pid = fork()));
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if (!pid) {
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sigemptyset(&ss);
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ASSERT_SYS(EINTR, -1, sigsuspend(&ss));
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_Exit(0);
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}
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ASSERT_SYS(0, 0, getpriority(PRIO_PROCESS, pid));
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ASSERT_SYS(0, 0, setpriority(PRIO_PROCESS, pid, 5));
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ASSERT_SYS(0, 5, getpriority(PRIO_PROCESS, pid));
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ASSERT_SYS(0, 0, kill(pid, SIGUSR1));
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ASSERT_SYS(0, pid, wait(&ws));
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ASSERT_SYS(0, 0, sigprocmask(SIG_SETMASK, &oldss, 0));
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}
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