Extract SleepSafe from test_util

Allows socket tests that rely on test_util to compile on Fuchsia.

PiperOrigin-RevId: 249884084
Change-Id: I17617e3f1baaba4c85c689f40db4a42a8de1597e

5 files changed, 80 insertions, 19 deletions

diff --git a/test/util/BUILD b/test/util/BUILD
index a4b47de56..a1b9ff526 100644
--- a/test/util/BUILD
+++ b/test/util/BUILD
@@ -238,6 +238,16 @@ cc_library(
 )
 
 cc_library(
+    name = "time_util",
+    testonly = 1,
+    srcs = ["time_util.cc"],
+    hdrs = ["time_util.h"],
+    deps = [
+        "@com_google_absl//absl/time",
+    ],
+)
+
+cc_library(
     name = "timer_util",
     testonly = 1,
     srcs = ["timer_util.cc"],
diff --git a/test/util/test_util.cc b/test/util/test_util.cc
index c52fd9a4a..bf0029951 100644
--- a/test/util/test_util.cc
+++ b/test/util/test_util.cc
@@ -18,7 +18,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
-#include <sys/syscall.h>
 #include <sys/types.h>
 #include <sys/uio.h>
 #include <sys/utsname.h>
@@ -211,21 +210,6 @@ std::vector<std::vector<struct iovec>> GenerateIovecs(uint64_t total_size,
   return result;
 }
 
-void SleepSafe(absl::Duration duration) {
-  if (duration == absl::ZeroDuration()) {
-    return;
-  }
-
-  struct timespec ts = absl::ToTimespec(duration);
-  int ret;
-  while (1) {
-    ret = syscall(__NR_nanosleep, &ts, &ts);
-    if (ret == 0 || (ret <= 0 && errno != EINTR)) {
-      break;
-    }
-  }
-}
-
 uint64_t Megabytes(uint64_t n) {
   // Overflow check, upper 20 bits in n shouldn't be set.
   TEST_CHECK(!(0xfffff00000000000 & n));
diff --git a/test/util/test_util.h b/test/util/test_util.h
index 8f5eb5089..cdbe8bfd1 100644
--- a/test/util/test_util.h
+++ b/test/util/test_util.h
@@ -738,9 +738,6 @@ inline PosixErrorOr<float> Atof(absl::string_view str) {
 std::vector<std::vector<struct iovec>> GenerateIovecs(uint64_t total_size,
                                                       void* buf, size_t buflen);
 
-// Sleep for at least the specified duration. Avoids glibc.
-void SleepSafe(absl::Duration duration);
-
 // Returns bytes in 'n' megabytes. Used for readability.
 uint64_t Megabytes(uint64_t n);
 
diff --git a/test/util/time_util.cc b/test/util/time_util.cc
new file mode 100644
index 000000000..1ddfbfc9c
--- /dev/null
+++ b/test/util/time_util.cc
@@ -0,0 +1,41 @@
+// Copyright 2019 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 "test/util/time_util.h"
+
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "absl/time/time.h"
+
+namespace gvisor {
+namespace testing {
+
+void SleepSafe(absl::Duration duration) {
+  if (duration == absl::ZeroDuration()) {
+    return;
+  }
+
+  struct timespec ts = absl::ToTimespec(duration);
+  int ret;
+  while (1) {
+    ret = syscall(__NR_nanosleep, &ts, &ts);
+    if (ret == 0 || (ret <= 0 && errno != EINTR)) {
+      break;
+    }
+  }
+}
+
+}  // namespace testing
+}  // namespace gvisor
diff --git a/test/util/time_util.h b/test/util/time_util.h
new file mode 100644
index 000000000..f3ddc9fde
--- /dev/null
+++ b/test/util/time_util.h
@@ -0,0 +1,29 @@
+// Copyright 2019 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.
+
+#ifndef GVISOR_TEST_UTIL_TIME_UTIL_H_
+#define GVISOR_TEST_UTIL_TIME_UTIL_H_
+
+#include "absl/time/time.h"
+
+namespace gvisor {
+namespace testing {
+
+// Sleep for at least the specified duration. Avoids glibc.
+void SleepSafe(absl::Duration duration);
+
+}  // namespace testing
+}  // namespace gvisor
+
+#endif  // GVISOR_TEST_UTIL_TIME_UTIL_H_