mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
3a9cac4892
- Fix mkdeps.com out of memory error - Remove static memory from __get_cpu_count() - Add support for passing hyphen to cat in cocmd - Change more ZipOS errors from ENOTSUP to EROFS - Specify mem_unit in sysinfo() output on BSD OSes
130 lines
4.9 KiB
C
130 lines
4.9 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net 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/cpuset.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/fmt/conv.h"
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#include "libc/intrin/popcnt.h"
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#include "libc/intrin/safemacros.internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/posix_spawn.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/thread.h"
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#include "libc/thread/thread2.h"
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void SetUp(void) {
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if (!IsLinux() && !IsFreebsd() && !IsWindows()) {
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exit(0);
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}
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if (IsFreebsd() && getuid() != 0) {
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exit(0);
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}
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}
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TEST(sched_getaffinity, firstOnly) {
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cpu_set_t x, y;
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CPU_ZERO(&x);
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CPU_SET(0, &x);
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ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
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ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
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EXPECT_EQ(1, CPU_COUNT(&y));
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EXPECT_TRUE(CPU_ISSET(0, &y));
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EXPECT_FALSE(CPU_ISSET(1, &y));
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}
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TEST(sched_getaffinity, secondOnly) {
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if (__get_cpu_count() < 2) return;
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cpu_set_t x, y;
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CPU_ZERO(&x);
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CPU_SET(1, &x);
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ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
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ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
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EXPECT_EQ(1, CPU_COUNT(&y));
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EXPECT_FALSE(CPU_ISSET(0, &y));
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EXPECT_TRUE(CPU_ISSET(1, &y));
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}
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TEST(sched_setaffinity, isInheritedAcrossFork) {
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cpu_set_t x, y;
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CPU_ZERO(&x);
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CPU_SET(0, &x);
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ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
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SPAWN(fork);
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ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
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EXPECT_EQ(1, CPU_COUNT(&y));
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EXPECT_TRUE(CPU_ISSET(0, &y));
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EXPECT_FALSE(CPU_ISSET(1, &y));
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EXITS(0);
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}
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__attribute__((__constructor__)) static void init(void) {
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cpu_set_t y;
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switch (atoi(nulltoempty(getenv("THE_DOGE")))) {
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case 42:
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ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
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EXPECT_EQ(1, CPU_COUNT(&y));
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EXPECT_TRUE(CPU_ISSET(0, &y));
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EXPECT_FALSE(CPU_ISSET(1, &y));
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exit(42);
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default:
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break;
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}
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}
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#ifdef __x86_64__
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TEST(sched_setaffinity, isInheritedAcrossExecve) {
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cpu_set_t x, y;
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CPU_ZERO(&x);
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CPU_SET(0, &x);
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ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
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int rc, ws, pid;
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char *prog = GetProgramExecutableName();
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char *args[] = {program_invocation_name, NULL};
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char *envs[] = {"THE_DOGE=42", NULL};
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EXPECT_EQ(0, posix_spawn(&pid, prog, NULL, NULL, args, envs));
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EXPECT_NE(-1, waitpid(pid, &ws, 0));
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EXPECT_TRUE(WIFEXITED(ws));
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EXPECT_EQ(42, WEXITSTATUS(ws));
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}
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#endif /* __x86_64__ */
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TEST(sched_getaffinity, getpid) {
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cpu_set_t x, y;
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CPU_ZERO(&x);
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CPU_SET(0, &x);
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ASSERT_SYS(0, 0, sched_setaffinity(getpid(), sizeof(x), &x));
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ASSERT_SYS(0, 0, sched_getaffinity(getpid(), sizeof(y), &y));
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EXPECT_EQ(1, CPU_COUNT(&y));
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EXPECT_TRUE(CPU_ISSET(0, &y));
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EXPECT_FALSE(CPU_ISSET(1, &y));
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}
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TEST(pthread_getaffinity, getpid) {
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cpu_set_t x, y;
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CPU_ZERO(&x);
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CPU_SET(0, &x);
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ASSERT_SYS(0, 0, pthread_setaffinity_np(pthread_self(), sizeof(x), &x));
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if (IsWindows()) return; // win32 doesn't define GetThreadAffinityMask ;_;
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ASSERT_SYS(0, 0, pthread_getaffinity_np(pthread_self(), sizeof(y), &y));
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EXPECT_EQ(1, CPU_COUNT(&y));
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EXPECT_TRUE(CPU_ISSET(0, &y));
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EXPECT_FALSE(CPU_ISSET(1, &y));
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}
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