mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-17 02:52:40 +00:00
116 lines
4.1 KiB
C
116 lines
4.1 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 2023 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/sysv/consts/sig.h"
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#include "libc/atomic.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/sigaction.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/nt/enum/context.h"
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#include "libc/nt/struct/context.h"
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#include "libc/nt/thread.h"
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#include "libc/sock/struct/pollfd.h"
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#include "libc/sysv/consts/poll.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/posixthread.internal.h"
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#include "libc/thread/thread.h"
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atomic_bool ready;
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atomic_bool didit;
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atomic_bool isdone;
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atomic_bool gotsig;
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void SetUp(void) {
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ready = false;
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didit = false;
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isdone = false;
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gotsig = false;
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}
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void Teleport(long rdi, long rsi, long rdx, long rcx) {
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ASSERT_EQ(0x1111111111111111, rdi);
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ASSERT_EQ(0x2222222222222222, rsi);
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ASSERT_EQ(0x3333333333333333, rdx);
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ASSERT_EQ(0x4444444444444444, rcx);
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didit = true;
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pthread_exit(0);
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}
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void *Worker(void *arg) {
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for (;;) {
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ready = true;
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}
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}
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TEST(SetThreadContext, test) {
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pthread_t th;
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if (!IsWindows()) return;
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ASSERT_EQ(0, pthread_create(&th, 0, Worker, 0));
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while (!ready) donothing;
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int64_t hand = _pthread_syshand((struct PosixThread *)th);
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ASSERT_EQ(0, SuspendThread(hand));
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struct NtContext nc;
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nc.ContextFlags = kNtContextFull;
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ASSERT_NE(0, GetThreadContext(hand, &nc));
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nc.Rsp = (nc.Rsp - 128) & -16;
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*(long *)(nc.Rsp -= 8) = nc.Rip;
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nc.Rip = (long)Teleport;
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nc.Rdi = 0x1111111111111111;
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nc.Rsi = 0x2222222222222222;
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nc.Rdx = 0x3333333333333333;
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nc.Rcx = 0x4444444444444444;
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ASSERT_NE(0, SetThreadContext(hand, &nc));
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ASSERT_EQ(1, ResumeThread(hand));
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ASSERT_EQ(0, pthread_join(th, 0));
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ASSERT_TRUE(didit);
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}
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int pfds[2];
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void OnSig(int sig) {
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gotsig = true;
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}
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void *Worker2(void *arg) {
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do {
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ASSERT_SYS(EINTR, -1, poll(&(struct pollfd){pfds[0], POLLIN}, 1, -1u));
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} while (!isdone);
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didit = true;
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return 0;
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}
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TEST(poll, interrupt) {
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pthread_t th;
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signal(SIGUSR1, OnSig);
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ASSERT_SYS(0, 0, pipe(pfds));
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ASSERT_EQ(0, pthread_create(&th, 0, Worker2, 0));
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for (int i = 0; i < 100; ++i) {
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ASSERT_EQ(0, pthread_kill(th, SIGUSR1));
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usleep(1000);
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}
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isdone = true;
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ASSERT_EQ(0, pthread_kill(th, SIGUSR1));
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ASSERT_EQ(0, pthread_join(th, 0));
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ASSERT_SYS(0, 0, close(pfds[1]));
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ASSERT_SYS(0, 0, close(pfds[0]));
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ASSERT_TRUE(gotsig);
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ASSERT_TRUE(didit);
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}
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