mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 12:03:41 +00:00
126 lines
4.8 KiB
C
126 lines
4.8 KiB
C
/*-*- 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 2022 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/calls/struct/cpuset.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/fmt/conv.h"
|
|
#include "libc/intrin/popcnt.h"
|
|
#include "libc/intrin/safemacros.internal.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/stdio/posix_spawn.h"
|
|
#include "libc/testlib/subprocess.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/thread/thread.h"
|
|
#include "libc/thread/thread2.h"
|
|
|
|
void SetUp(void) {
|
|
if (!IsLinux() && !IsFreebsd() && !IsWindows()) {
|
|
exit(0);
|
|
}
|
|
}
|
|
|
|
TEST(sched_getaffinity, firstOnly) {
|
|
cpu_set_t x, y;
|
|
CPU_ZERO(&x);
|
|
CPU_SET(0, &x);
|
|
ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
|
|
ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
|
|
EXPECT_EQ(1, CPU_COUNT(&y));
|
|
EXPECT_TRUE(CPU_ISSET(0, &y));
|
|
EXPECT_FALSE(CPU_ISSET(1, &y));
|
|
}
|
|
|
|
TEST(sched_getaffinity, secondOnly) {
|
|
if (_getcpucount() < 2) return;
|
|
cpu_set_t x, y;
|
|
CPU_ZERO(&x);
|
|
CPU_SET(1, &x);
|
|
ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
|
|
ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
|
|
EXPECT_EQ(1, CPU_COUNT(&y));
|
|
EXPECT_FALSE(CPU_ISSET(0, &y));
|
|
EXPECT_TRUE(CPU_ISSET(1, &y));
|
|
}
|
|
|
|
TEST(sched_setaffinity, isInheritedAcrossFork) {
|
|
cpu_set_t x, y;
|
|
CPU_ZERO(&x);
|
|
CPU_SET(0, &x);
|
|
ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
|
|
SPAWN(fork);
|
|
ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
|
|
EXPECT_EQ(1, CPU_COUNT(&y));
|
|
EXPECT_TRUE(CPU_ISSET(0, &y));
|
|
EXPECT_FALSE(CPU_ISSET(1, &y));
|
|
EXITS(0);
|
|
}
|
|
|
|
__attribute__((__constructor__)) static void init(void) {
|
|
cpu_set_t y;
|
|
switch (atoi(nulltoempty(getenv("THE_DOGE")))) {
|
|
case 42:
|
|
ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
|
|
EXPECT_EQ(1, CPU_COUNT(&y));
|
|
EXPECT_TRUE(CPU_ISSET(0, &y));
|
|
EXPECT_FALSE(CPU_ISSET(1, &y));
|
|
exit(42);
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef __x86_64__
|
|
TEST(sched_setaffinity, isInheritedAcrossExecve) {
|
|
cpu_set_t x, y;
|
|
CPU_ZERO(&x);
|
|
CPU_SET(0, &x);
|
|
ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
|
|
int rc, ws, pid;
|
|
char *prog = GetProgramExecutableName();
|
|
char *args[] = {program_invocation_name, NULL};
|
|
char *envs[] = {"THE_DOGE=42", NULL};
|
|
EXPECT_EQ(0, posix_spawn(&pid, prog, NULL, NULL, args, envs));
|
|
EXPECT_NE(-1, waitpid(pid, &ws, 0));
|
|
EXPECT_TRUE(WIFEXITED(ws));
|
|
EXPECT_EQ(42, WEXITSTATUS(ws));
|
|
}
|
|
#endif /* __x86_64__ */
|
|
|
|
TEST(sched_getaffinity, getpid) {
|
|
cpu_set_t x, y;
|
|
CPU_ZERO(&x);
|
|
CPU_SET(0, &x);
|
|
ASSERT_SYS(0, 0, sched_setaffinity(getpid(), sizeof(x), &x));
|
|
ASSERT_SYS(0, 0, sched_getaffinity(getpid(), sizeof(y), &y));
|
|
EXPECT_EQ(1, CPU_COUNT(&y));
|
|
EXPECT_TRUE(CPU_ISSET(0, &y));
|
|
EXPECT_FALSE(CPU_ISSET(1, &y));
|
|
}
|
|
|
|
TEST(pthread_getaffinity, getpid) {
|
|
cpu_set_t x, y;
|
|
CPU_ZERO(&x);
|
|
CPU_SET(0, &x);
|
|
ASSERT_SYS(0, 0, pthread_setaffinity_np(pthread_self(), sizeof(x), &x));
|
|
if (IsWindows()) return; // win32 doesn't define GetThreadAffinityMask ;_;
|
|
ASSERT_SYS(0, 0, pthread_getaffinity_np(pthread_self(), sizeof(y), &y));
|
|
EXPECT_EQ(1, CPU_COUNT(&y));
|
|
EXPECT_TRUE(CPU_ISSET(0, &y));
|
|
EXPECT_FALSE(CPU_ISSET(1, &y));
|
|
}
|