summaryrefslogtreecommitdiffhomepage
path: root/test/syscalls/linux/getrusage.cc
diff options
context:
space:
mode:
Diffstat (limited to 'test/syscalls/linux/getrusage.cc')
-rw-r--r--test/syscalls/linux/getrusage.cc185
1 files changed, 0 insertions, 185 deletions
diff --git a/test/syscalls/linux/getrusage.cc b/test/syscalls/linux/getrusage.cc
deleted file mode 100644
index e84cbfdc3..000000000
--- a/test/syscalls/linux/getrusage.cc
+++ /dev/null
@@ -1,185 +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 <signal.h>
-#include <sys/mman.h>
-#include <sys/resource.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-#include "gtest/gtest.h"
-#include "absl/time/clock.h"
-#include "absl/time/time.h"
-#include "test/util/logging.h"
-#include "test/util/memory_util.h"
-#include "test/util/multiprocess_util.h"
-#include "test/util/signal_util.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-TEST(GetrusageTest, BasicFork) {
- pid_t pid = fork();
- if (pid == 0) {
- struct rusage rusage_self;
- TEST_PCHECK(getrusage(RUSAGE_SELF, &rusage_self) == 0);
- struct rusage rusage_children;
- TEST_PCHECK(getrusage(RUSAGE_CHILDREN, &rusage_children) == 0);
- // The child has consumed some memory.
- TEST_CHECK(rusage_self.ru_maxrss != 0);
- // The child has no children of its own.
- TEST_CHECK(rusage_children.ru_maxrss == 0);
- _exit(0);
- }
- ASSERT_THAT(pid, SyscallSucceeds());
- int status;
- ASSERT_THAT(RetryEINTR(waitpid)(pid, &status, 0), SyscallSucceeds());
- struct rusage rusage_self;
- ASSERT_THAT(getrusage(RUSAGE_SELF, &rusage_self), SyscallSucceeds());
- struct rusage rusage_children;
- ASSERT_THAT(getrusage(RUSAGE_CHILDREN, &rusage_children), SyscallSucceeds());
- // The parent has consumed some memory.
- EXPECT_GT(rusage_self.ru_maxrss, 0);
- // The child has consumed some memory, and because it has exited we can get
- // its max RSS.
- EXPECT_GT(rusage_children.ru_maxrss, 0);
-}
-
-// Verifies that a process can get the max resident set size of its grandchild,
-// i.e. that maxrss propagates correctly from children to waiting parents.
-TEST(GetrusageTest, Grandchild) {
- constexpr int kGrandchildSizeKb = 1024;
- pid_t pid = fork();
- if (pid == 0) {
- pid = fork();
- if (pid == 0) {
- int flags = MAP_ANONYMOUS | MAP_POPULATE | MAP_PRIVATE;
- void* addr =
- mmap(nullptr, kGrandchildSizeKb * 1024, PROT_WRITE, flags, -1, 0);
- TEST_PCHECK(addr != MAP_FAILED);
- } else {
- int status;
- TEST_PCHECK(RetryEINTR(waitpid)(pid, &status, 0) == pid);
- }
- _exit(0);
- }
- ASSERT_THAT(pid, SyscallSucceeds());
- int status;
- ASSERT_THAT(RetryEINTR(waitpid)(pid, &status, 0), SyscallSucceeds());
- struct rusage rusage_self;
- ASSERT_THAT(getrusage(RUSAGE_SELF, &rusage_self), SyscallSucceeds());
- struct rusage rusage_children;
- ASSERT_THAT(getrusage(RUSAGE_CHILDREN, &rusage_children), SyscallSucceeds());
- // The parent has consumed some memory.
- EXPECT_GT(rusage_self.ru_maxrss, 0);
- // The child should consume next to no memory, but the grandchild will
- // consume at least 1MB. Verify that usage bubbles up to the grandparent.
- EXPECT_GT(rusage_children.ru_maxrss, kGrandchildSizeKb);
-}
-
-// Verifies that processes ignoring SIGCHLD do not have updated child maxrss
-// updated.
-TEST(GetrusageTest, IgnoreSIGCHLD) {
- const auto rest = [] {
- struct sigaction sa;
- sa.sa_handler = SIG_IGN;
- sa.sa_flags = 0;
- auto cleanup = TEST_CHECK_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGCHLD, sa));
- pid_t pid = fork();
- if (pid == 0) {
- struct rusage rusage_self;
- TEST_PCHECK(getrusage(RUSAGE_SELF, &rusage_self) == 0);
- // The child has consumed some memory.
- TEST_CHECK(rusage_self.ru_maxrss != 0);
- _exit(0);
- }
- TEST_CHECK_SUCCESS(pid);
- int status;
- TEST_CHECK_ERRNO(RetryEINTR(waitpid)(pid, &status, 0), ECHILD);
- struct rusage rusage_self;
- TEST_CHECK_SUCCESS(getrusage(RUSAGE_SELF, &rusage_self));
- struct rusage rusage_children;
- TEST_CHECK_SUCCESS(getrusage(RUSAGE_CHILDREN, &rusage_children));
- // The parent has consumed some memory.
- TEST_CHECK(rusage_self.ru_maxrss > 0);
- // The child's maxrss should not have propagated up.
- TEST_CHECK(rusage_children.ru_maxrss == 0);
- };
- // Execute inside a forked process so that rusage_children is clean.
- EXPECT_THAT(InForkedProcess(rest), IsPosixErrorOkAndHolds(0));
-}
-
-// Verifies that zombie processes do not update their parent's maxrss. Only
-// reaped processes should do this.
-TEST(GetrusageTest, IgnoreZombie) {
- const auto rest = [] {
- pid_t pid = fork();
- if (pid == 0) {
- struct rusage rusage_self;
- TEST_PCHECK(getrusage(RUSAGE_SELF, &rusage_self) == 0);
- struct rusage rusage_children;
- TEST_PCHECK(getrusage(RUSAGE_CHILDREN, &rusage_children) == 0);
- // The child has consumed some memory.
- TEST_CHECK(rusage_self.ru_maxrss != 0);
- // The child has no children of its own.
- TEST_CHECK(rusage_children.ru_maxrss == 0);
- _exit(0);
- }
- TEST_CHECK_SUCCESS(pid);
- // Give the child time to exit. Because we don't call wait, the child should
- // remain a zombie.
- absl::SleepFor(absl::Seconds(5));
- struct rusage rusage_self;
- TEST_CHECK_SUCCESS(getrusage(RUSAGE_SELF, &rusage_self));
- struct rusage rusage_children;
- TEST_CHECK_SUCCESS(getrusage(RUSAGE_CHILDREN, &rusage_children));
- // The parent has consumed some memory.
- TEST_CHECK(rusage_self.ru_maxrss > 0);
- // The child has consumed some memory, but hasn't been reaped.
- TEST_CHECK(rusage_children.ru_maxrss == 0);
- };
- // Execute inside a forked process so that rusage_children is clean.
- EXPECT_THAT(InForkedProcess(rest), IsPosixErrorOkAndHolds(0));
-}
-
-TEST(GetrusageTest, Wait4) {
- pid_t pid = fork();
- if (pid == 0) {
- struct rusage rusage_self;
- TEST_PCHECK(getrusage(RUSAGE_SELF, &rusage_self) == 0);
- struct rusage rusage_children;
- TEST_PCHECK(getrusage(RUSAGE_CHILDREN, &rusage_children) == 0);
- // The child has consumed some memory.
- TEST_CHECK(rusage_self.ru_maxrss != 0);
- // The child has no children of its own.
- TEST_CHECK(rusage_children.ru_maxrss == 0);
- _exit(0);
- }
- ASSERT_THAT(pid, SyscallSucceeds());
- struct rusage rusage_children;
- int status;
- ASSERT_THAT(RetryEINTR(wait4)(pid, &status, 0, &rusage_children),
- SyscallSucceeds());
- // The child has consumed some memory, and because it has exited we can get
- // its max RSS.
- EXPECT_GT(rusage_children.ru_maxrss, 0);
-}
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 06:31:30 +0000