1 files changed, 61 insertions, 0 deletions
diff --git a/test/syscalls/linux/readv_common.h b/test/syscalls/linux/readv_common.h
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+++ b/test/syscalls/linux/readv_common.h
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+// Copyright 2018 Google LLC
+//
+// 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_SYSCALLS_READV_COMMON_H_
+#define GVISOR_TEST_SYSCALLS_READV_COMMON_H_
+
+#include <stddef.h>
+
+namespace gvisor {
+namespace testing {
+
+// A NUL-terminated std::string containing the data used by tests using the following
+// test helpers.
+extern const char kReadvTestData[];
+
+// The size of kReadvTestData, including the terminating NUL.
+extern const size_t kReadvTestDataSize;
+
+// ReadAllOneBuffer asserts that it can read kReadvTestData from an fd using
+// exactly one iovec.
+void ReadAllOneBuffer(int fd);
+
+// ReadAllOneLargeBuffer asserts that it can read kReadvTestData from an fd
+// using exactly one iovec containing an overly large buffer.
+void ReadAllOneLargeBuffer(int fd);
+
+// ReadOneHalfAtATime asserts that it can read test_data_from an fd using
+// exactly two iovecs that are roughly equivalent in size.
+void ReadOneHalfAtATime(int fd);
+
+// ReadOneBufferPerByte asserts that it can read kReadvTestData from an fd
+// using one iovec per byte.
+void ReadOneBufferPerByte(int fd);
+
+// ReadBuffersOverlapping asserts that it can read kReadvTestData from an fd
+// where two iovecs are overlapping.
+void ReadBuffersOverlapping(int fd);
+
+// ReadBuffersDiscontinuous asserts that it can read kReadvTestData from an fd
+// where each iovec is discontinuous from the next by 1 byte.
+void ReadBuffersDiscontinuous(int fd);
+
+// ReadIovecsCompletelyFilled asserts that the previous iovec is completely
+// filled before moving onto the next.
+void ReadIovecsCompletelyFilled(int fd);
+
+}  // namespace testing
+}  // namespace gvisor
+
+#endif  // GVISOR_TEST_SYSCALLS_READV_COMMON_H_