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https://github.com/jart/cosmopolitan.git
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c260345e06
This change switches most of the core locks to be re-entrant, in order to reduce the chance of deadlocking code that does, clever things with asynchronous signal handlers. This change implements it it in pthreads so we're one step closer to having a standardized threading primitives
96 lines
3.8 KiB
C
96 lines
3.8 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/dce.h"
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#include "libc/errno.h"
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#include "libc/runtime/internal.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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#include "libc/time/time.h"
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static _Thread_local int tdata = 31337;
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static _Thread_local int tbss;
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static void *ReturnArg(void *arg) {
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return arg;
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}
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TEST(cthread_create, testJoinDeadlock) {
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ASSERT_SYS(0, EDEADLK, cthread_join(cthread_self(), 0));
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}
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TEST(cthread_create, testCreateReturnJoin) {
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void *exitcode;
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cthread_t thread;
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ASSERT_EQ(0, cthread_create(&thread, 0, ReturnArg, ReturnArg));
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ASSERT_EQ(0, cthread_join(thread, &exitcode));
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ASSERT_EQ(ReturnArg, exitcode);
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}
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static void *ExitArg(void *arg) {
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cthread_exit(arg);
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}
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TEST(cthread_create, testCreateExitJoin) {
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void *exitcode;
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cthread_t thread;
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ASSERT_EQ(0, cthread_create(&thread, 0, ExitArg, (void *)-31337));
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ASSERT_EQ(0, cthread_join(thread, &exitcode));
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ASSERT_EQ((void *)-31337, exitcode);
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}
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TEST(gcctls, size) {
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if (IsXnu()) return; // TODO(jart): codemorph
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if (IsWindows()) return; // TODO(jart): codemorph
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// schlep in .zip section too
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// make sure executable isn't too huge
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size_t size;
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int64_t x = 0;
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gmtime(&x);
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ASSERT_LT((uintptr_t)_tls_size, 8192);
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size = GetFileSize(GetProgramExecutableName());
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if (IsTiny()) {
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ASSERT_LT(size, 200 * 1024);
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} else if (IsModeDbg() || IsAsan()) {
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ASSERT_LT(size, 4 * 1024 * 1024);
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} else {
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ASSERT_LT(size, 500 * 1024);
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}
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}
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static void *TlsWorker(void *arg) {
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ASSERT_EQ(31337, tdata);
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ASSERT_EQ(0, tbss);
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return 0;
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}
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TEST(gcctls, worksAndIsNonInheritable) {
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if (IsXnu()) return; // TODO(jart): codemorph
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if (IsWindows()) return; // TODO(jart): codemorph
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void *exitcode;
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cthread_t thread;
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ASSERT_EQ(tdata, 31337);
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ASSERT_EQ(tbss, 0);
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tdata = 1337;
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tbss = 1337;
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ASSERT_EQ(0, cthread_create(&thread, 0, TlsWorker, (void *)-31337));
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ASSERT_EQ(0, cthread_join(thread, &exitcode));
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ASSERT_EQ(NULL, exitcode);
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}
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