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https://github.com/jart/cosmopolitan.git
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67 lines
3.1 KiB
C
67 lines
3.1 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 2021 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/timeval.h"
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#include "libc/sock/select.h"
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#include "libc/sock/sock.h"
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#include "libc/testlib/testlib.h"
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#include "libc/time/time.h"
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void SetUpOnce(void) {
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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}
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// TEST(select, allZero) {
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// // todo: figure out how to test block until signal w/ select
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// EXPECT_SYS(0, 0, select(0, 0, 0, 0, 0));
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// }
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TEST(select, pipe_hasInputFromSameProcess) {
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fd_set rfds;
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char buf[2];
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int pipefds[2];
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struct timeval tv = {.tv_usec = 100 * 1000};
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EXPECT_SYS(0, 0, pipe(pipefds));
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FD_ZERO(&rfds);
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FD_SET(pipefds[0], &rfds);
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EXPECT_SYS(0, 2, write(pipefds[1], "hi", 2));
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EXPECT_SYS(0, 1, select(pipefds[0] + 1, &rfds, 0, 0, &tv));
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EXPECT_TRUE(FD_ISSET(pipefds[0], &rfds));
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EXPECT_SYS(0, 2, read(pipefds[0], buf, 2));
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EXPECT_SYS(0, 0, select(pipefds[0] + 1, &rfds, 0, 0, &tv));
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EXPECT_TRUE(!FD_ISSET(pipefds[0], &rfds));
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EXPECT_SYS(0, 0, close(pipefds[0]));
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EXPECT_SYS(0, 0, close(pipefds[1]));
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}
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#if 0 // flaky
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TEST(select, testSleep) {
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int64_t e;
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long double n;
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struct timeval t = {0, 2000};
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n = nowl();
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EXPECT_SYS(0, 0, select(0, 0, 0, 0, &t));
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e = (nowl() - n) * 1e6;
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EXPECT_GT(e, 1000);
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if (IsLinux()) {
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EXPECT_EQ(0, t.tv_sec);
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EXPECT_EQ(0, t.tv_usec);
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}
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}
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#endif
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