mirror of
https://github.com/jart/cosmopolitan.git
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78 lines
3.2 KiB
C
78 lines
3.2 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/rlimit.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sysv/consts/rlimit.h"
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#include "libc/testlib/testlib.h"
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int ws, pid, f[2];
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char buf[6] = {0};
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struct rlimit rlim = {0, 10};
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TEST(pipe, efault) {
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EXPECT_SYS(EFAULT, -1, pipe(VEIL("r", (void *)0)));
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}
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TEST(pipe, einval) {
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EXPECT_SYS(EINVAL, -1, pipe2(f, -1));
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}
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TEST(pipe, ebadf) {
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if (IsFreebsd()) return; // somehow succeeds
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if (IsOpenbsd()) return; // somehow succeeds
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EXPECT_SYS(0, 0, pipe(f));
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EXPECT_SYS(EBADF, -1, write(f[0], "h", 1));
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EXPECT_SYS(EBADF, -1, read(f[1], buf, 1));
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EXPECT_SYS(0, 0, close(f[0]));
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EXPECT_SYS(0, 0, close(f[1]));
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}
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TEST(pipe, emfile) {
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if (IsWindows()) return; // TODO
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ASSERT_NE(-1, (pid = fork()));
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if (!pid) {
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ASSERT_EQ(0, setrlimit(RLIMIT_NOFILE, &rlim));
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ASSERT_SYS(EMFILE, -1, pipe(f));
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_exit(0);
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}
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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(0, WEXITSTATUS(ws));
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}
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TEST(pipe, usesLowestFileNumbers) {
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EXPECT_SYS(0, 0, pipe(f));
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EXPECT_SYS(0, 3, f[0]);
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EXPECT_SYS(0, 4, f[1]);
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EXPECT_SYS(0, 0, close(f[0]));
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EXPECT_SYS(0, 0, close(f[1]));
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}
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TEST(pipe, doesBuffering) {
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EXPECT_SYS(0, 0, pipe(f));
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EXPECT_SYS(0, 5, write(f[1], "hello", 5));
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EXPECT_SYS(0, 5, read(f[0], buf, 5));
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EXPECT_STREQ("hello", buf);
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EXPECT_SYS(0, 0, close(f[0]));
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EXPECT_SYS(0, 0, close(f[1]));
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}
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