mirror of
https://github.com/jart/cosmopolitan.git
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112 lines
4.3 KiB
C
112 lines
4.3 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/atomic.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/syscall-sysv.internal.h"
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#include "libc/calls/syscall_support-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/atomic.h"
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#include "libc/runtime/runtime.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/thread.h"
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void SetUpOnce(void) {
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if (IsXnu()) {
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tinyprint(2, program_invocation_short_name,
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": no custom thread names on apple\n", NULL);
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exit(0);
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}
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if (IsWindows()) {
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tinyprint(2, program_invocation_short_name,
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": no custom thread names on windows\n", NULL);
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exit(0);
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}
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if (IsLinux() || IsOpenbsd()) {
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char buf[512];
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if (pthread_getname_np(pthread_self(), buf, sizeof(buf)) == ENOSYS) {
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tinyprint(2, program_invocation_short_name,
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": kernel too old for thread name support\n", NULL);
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exit(0);
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}
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}
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}
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static void *SetName(void *arg) {
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ASSERT_EQ(0, pthread_setname_np(pthread_self(), "justine"));
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return 0;
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}
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TEST(pthread_setname_np, SetName_SystemCallSucceeds) {
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pthread_t id;
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ASSERT_EQ(0, pthread_create(&id, 0, SetName, 0));
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ASSERT_EQ(0, pthread_join(id, 0));
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}
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static void *SetGetNameOfSelf(void *arg) {
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char me[16];
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ASSERT_EQ(0, pthread_setname_np(pthread_self(), "justine"));
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ASSERT_EQ(0, pthread_getname_np(pthread_self(), me, sizeof(me)));
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EXPECT_STREQ("justine", me);
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return 0;
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}
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TEST(pthread_setname_np, SetGetNameOfSelf) {
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pthread_t id;
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if (IsFreebsd()) {
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// no get thread name no freebsd (why??)
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return;
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}
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ASSERT_EQ(0, pthread_create(&id, 0, SetGetNameOfSelf, 0));
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ASSERT_EQ(0, pthread_join(id, 0));
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}
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atomic_char sync1, sync2;
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static void *GetNameOfOtherThreadWorker(void *arg) {
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pthread_setname_np(pthread_self(), "justine");
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atomic_store(&sync1, 1);
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while (!atomic_load(&sync2)) pthread_yield();
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return 0;
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}
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TEST(pthread_setname_np, GetNameOfOtherThread) {
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char me[16];
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pthread_t id;
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if (IsFreebsd()) {
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// no get thread name no freebsd (why??)
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return;
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}
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ASSERT_EQ(0, pthread_create(&id, 0, GetNameOfOtherThreadWorker, 0));
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while (!atomic_load(&sync1)) pthread_yield();
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errno_t e = pthread_getname_np(id, me, sizeof(me));
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if (IsLinux() && e == ENOENT) goto GiveUp; // bah old kernel
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if (IsLinux() && e == EACCES) goto GiveUp; // meh landlock
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ASSERT_EQ(0, e);
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EXPECT_STREQ("justine", me);
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ASSERT_EQ(0, pthread_setname_np(id, "tunney"));
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ASSERT_EQ(0, pthread_getname_np(id, me, sizeof(me)));
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EXPECT_STREQ("tunney", me);
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GiveUp:
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atomic_store(&sync2, 1);
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ASSERT_EQ(0, pthread_join(id, 0));
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}
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