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-rw-r--r--test/syscalls/linux/ppoll.cc155
1 files changed, 0 insertions, 155 deletions
diff --git a/test/syscalls/linux/ppoll.cc b/test/syscalls/linux/ppoll.cc
deleted file mode 100644
index 7f7d69731..000000000
--- a/test/syscalls/linux/ppoll.cc
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <poll.h>
-#include <signal.h>
-#include <sys/syscall.h>
-#include <sys/time.h>
-#include <unistd.h>
-
-#include "gtest/gtest.h"
-#include "absl/time/time.h"
-#include "test/syscalls/linux/base_poll_test.h"
-#include "test/util/signal_util.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-namespace {
-
-// Linux and glibc have a different idea of the sizeof sigset_t. When calling
-// the syscall directly, use what the kernel expects.
-unsigned kSigsetSize = SIGRTMAX / 8;
-
-// Linux ppoll(2) differs from the glibc wrapper function in that Linux updates
-// the timeout with the amount of time remaining. In order to test this behavior
-// we need to use the syscall directly.
-int syscallPpoll(struct pollfd* fds, nfds_t nfds, struct timespec* timeout_ts,
- const sigset_t* sigmask, unsigned mask_size) {
- return syscall(SYS_ppoll, fds, nfds, timeout_ts, sigmask, mask_size);
-}
-
-class PpollTest : public BasePollTest {
- protected:
- void SetUp() override { BasePollTest::SetUp(); }
- void TearDown() override { BasePollTest::TearDown(); }
-};
-
-TEST_F(PpollTest, InvalidFds) {
- // fds is invalid because it's null, but we tell ppoll the length is non-zero.
- struct timespec timeout = {};
- sigset_t sigmask;
- TEST_PCHECK(sigemptyset(&sigmask) == 0);
- EXPECT_THAT(syscallPpoll(nullptr, 1, &timeout, &sigmask, kSigsetSize),
- SyscallFailsWithErrno(EFAULT));
- EXPECT_THAT(syscallPpoll(nullptr, -1, &timeout, &sigmask, kSigsetSize),
- SyscallFailsWithErrno(EINVAL));
-}
-
-// See that when fds is null, ppoll behaves like sleep.
-TEST_F(PpollTest, NullFds) {
- struct timespec timeout = absl::ToTimespec(absl::Milliseconds(10));
- ASSERT_THAT(syscallPpoll(nullptr, 0, &timeout, nullptr, 0),
- SyscallSucceeds());
- EXPECT_EQ(timeout.tv_sec, 0);
- EXPECT_EQ(timeout.tv_nsec, 0);
-}
-
-TEST_F(PpollTest, ZeroTimeout) {
- struct timespec timeout = {};
- ASSERT_THAT(syscallPpoll(nullptr, 0, &timeout, nullptr, 0),
- SyscallSucceeds());
- EXPECT_EQ(timeout.tv_sec, 0);
- EXPECT_EQ(timeout.tv_nsec, 0);
-}
-
-// If random S/R interrupts the ppoll, SIGALRM may be delivered before ppoll
-// restarts, causing the ppoll to hang forever.
-TEST_F(PpollTest, NoTimeout) {
- // When there's no timeout, ppoll may never return so set a timer.
- SetTimer(absl::Milliseconds(100));
- // See that we get interrupted by the timer.
- ASSERT_THAT(syscallPpoll(nullptr, 0, nullptr, nullptr, 0),
- SyscallFailsWithErrno(EINTR));
- EXPECT_TRUE(TimerFired());
-}
-
-TEST_F(PpollTest, InvalidTimeoutNegative) {
- struct timespec timeout = absl::ToTimespec(absl::Nanoseconds(-1));
- EXPECT_THAT(syscallPpoll(nullptr, 0, &timeout, nullptr, 0),
- SyscallFailsWithErrno(EINVAL));
-}
-
-TEST_F(PpollTest, InvalidTimeoutNotNormalized) {
- struct timespec timeout = {0, 1000000001};
- EXPECT_THAT(syscallPpoll(nullptr, 0, &timeout, nullptr, 0),
- SyscallFailsWithErrno(EINVAL));
-}
-
-TEST_F(PpollTest, InvalidMaskSize) {
- struct timespec timeout = {};
- sigset_t sigmask;
- TEST_PCHECK(sigemptyset(&sigmask) == 0);
- EXPECT_THAT(syscallPpoll(nullptr, 0, &timeout, &sigmask, 128),
- SyscallFailsWithErrno(EINVAL));
-}
-
-// Verify that signals blocked by the ppoll mask (that would otherwise be
-// allowed) do not interrupt ppoll.
-TEST_F(PpollTest, SignalMaskBlocksSignal) {
- absl::Duration duration(absl::Seconds(30));
- struct timespec timeout = absl::ToTimespec(duration);
- absl::Duration timer_duration(absl::Seconds(10));
-
- // Call with a mask that blocks SIGALRM. See that ppoll is not interrupted
- // (i.e. returns 0) and that upon completion, the timer has fired.
- sigset_t mask;
- ASSERT_THAT(sigprocmask(0, nullptr, &mask), SyscallSucceeds());
- TEST_PCHECK(sigaddset(&mask, SIGALRM) == 0);
- SetTimer(timer_duration);
- MaybeSave();
- ASSERT_FALSE(TimerFired());
- ASSERT_THAT(syscallPpoll(nullptr, 0, &timeout, &mask, kSigsetSize),
- SyscallSucceeds());
- EXPECT_TRUE(TimerFired());
- EXPECT_EQ(absl::DurationFromTimespec(timeout), absl::Duration());
-}
-
-// Verify that signals allowed by the ppoll mask (that would otherwise be
-// blocked) interrupt ppoll.
-TEST_F(PpollTest, SignalMaskAllowsSignal) {
- absl::Duration duration(absl::Seconds(30));
- struct timespec timeout = absl::ToTimespec(duration);
- absl::Duration timer_duration(absl::Seconds(10));
-
- sigset_t mask;
- ASSERT_THAT(sigprocmask(0, nullptr, &mask), SyscallSucceeds());
-
- // Block SIGALRM.
- auto cleanup =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, SIGALRM));
-
- // Call with a mask that unblocks SIGALRM. See that ppoll is interrupted.
- SetTimer(timer_duration);
- MaybeSave();
- ASSERT_FALSE(TimerFired());
- ASSERT_THAT(syscallPpoll(nullptr, 0, &timeout, &mask, kSigsetSize),
- SyscallFailsWithErrno(EINTR));
- EXPECT_TRUE(TimerFired());
- EXPECT_GT(absl::DurationFromTimespec(timeout), absl::Duration());
-}
-
-} // namespace
-} // namespace testing
-} // namespace gvisor