0000826378
Bug: 12449798 Change-Id: I07cbf3f670a0d1304b68148325a774f266b5c433
240 lines
5.8 KiB
C++
240 lines
5.8 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <fcntl.h>
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#include "TemporaryFile.h"
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TEST(fcntl, fcntl_smoke) {
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int fd = open("/proc/version", O_RDONLY);
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ASSERT_TRUE(fd != -1);
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int flags = fcntl(fd, F_GETFD);
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ASSERT_TRUE(flags != -1);
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ASSERT_EQ(0, flags & FD_CLOEXEC);
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int rc = fcntl(fd, F_SETFD, FD_CLOEXEC);
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ASSERT_EQ(0, rc);
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flags = fcntl(fd, F_GETFD);
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ASSERT_TRUE(flags != -1);
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ASSERT_EQ(FD_CLOEXEC, flags & FD_CLOEXEC);
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close(fd);
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}
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TEST(fcntl, open_open64) {
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int fd;
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fd = open("/proc/version", O_RDONLY);
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ASSERT_TRUE(fd != -1);
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close(fd);
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fd = open64("/proc/version", O_RDONLY);
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ASSERT_TRUE(fd != -1);
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close(fd);
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}
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TEST(fcntl, openat_openat64) {
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int fd;
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fd = openat(AT_FDCWD, "/proc/version", O_RDONLY);
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ASSERT_TRUE(fd != -1);
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close(fd);
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fd = openat64(AT_FDCWD, "/proc/version", O_RDONLY);
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ASSERT_TRUE(fd != -1);
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close(fd);
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}
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TEST(fcntl, creat_creat64) {
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ASSERT_EQ(-1, creat("", 0666));
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ASSERT_EQ(ENOENT, errno);
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ASSERT_EQ(-1, creat64("", 0666));
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ASSERT_EQ(ENOENT, errno);
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}
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TEST(fcntl, posix_fadvise) {
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TemporaryFile tf;
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errno = 0;
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EXPECT_EQ(EBADF, posix_fadvise(-1, 0, 0, POSIX_FADV_NORMAL));
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EXPECT_EQ(0, errno);
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EXPECT_EQ(EBADF, posix_fadvise64(-1, 0, 0, POSIX_FADV_NORMAL));
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EXPECT_EQ(0, errno);
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EXPECT_EQ(EINVAL, posix_fadvise(tf.fd, 0, 0, -1));
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EXPECT_EQ(0, errno);
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EXPECT_EQ(EINVAL, posix_fadvise64(tf.fd, 0, 0, -1));
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EXPECT_EQ(0, errno);
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EXPECT_EQ(0, posix_fadvise(tf.fd, 0, 0, POSIX_FADV_NORMAL));
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EXPECT_EQ(0, posix_fadvise64(tf.fd, 0, 0, POSIX_FADV_NORMAL));
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}
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TEST(fcntl, fallocate_EINVAL) {
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TemporaryFile tf;
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// fallocate/fallocate64 set errno.
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// posix_fallocate/posix_fallocate64 return an errno value.
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errno = 0;
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ASSERT_EQ(-1, fallocate(tf.fd, 0, 0, -1));
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ASSERT_EQ(EINVAL, errno);
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errno = 0;
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ASSERT_EQ(-1, fallocate64(tf.fd, 0, 0, -1));
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ASSERT_EQ(EINVAL, errno);
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errno = 0;
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ASSERT_EQ(EINVAL, posix_fallocate(tf.fd, 0, -1));
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ASSERT_EQ(0, errno);
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errno = 0;
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ASSERT_EQ(EINVAL, posix_fallocate64(tf.fd, 0, -1));
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ASSERT_EQ(0, errno);
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}
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TEST(fcntl, fallocate) {
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TemporaryFile tf;
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struct stat sb;
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ASSERT_EQ(0, fstat(tf.fd, &sb));
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ASSERT_EQ(0, sb.st_size);
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#if defined(__BIONIC__)
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ASSERT_EQ(0, fallocate(tf.fd, 0, 0, 1));
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ASSERT_EQ(0, fstat(tf.fd, &sb));
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ASSERT_EQ(1, sb.st_size);
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ASSERT_EQ(0, fallocate64(tf.fd, 0, 0, 2));
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ASSERT_EQ(0, fstat(tf.fd, &sb));
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ASSERT_EQ(2, sb.st_size);
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#endif
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ASSERT_EQ(0, posix_fallocate(tf.fd, 0, 3));
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ASSERT_EQ(0, fstat(tf.fd, &sb));
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ASSERT_EQ(3, sb.st_size);
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ASSERT_EQ(0, posix_fallocate64(tf.fd, 0, 4));
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ASSERT_EQ(0, fstat(tf.fd, &sb));
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ASSERT_EQ(4, sb.st_size);
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}
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TEST(fcntl, f_getlk64) {
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int fd = open64("/proc/version", O_RDONLY);
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ASSERT_TRUE(fd != -1);
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struct flock64 check_lock;
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check_lock.l_type = F_WRLCK;
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check_lock.l_start = 0;
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check_lock.l_whence = SEEK_SET;
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check_lock.l_len = 0;
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int rc = fcntl(fd, F_GETLK64, &check_lock);
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ASSERT_EQ(0, rc);
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close(fd);
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}
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TEST(fcntl, splice) {
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int pipe_fds[2];
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ASSERT_EQ(0, pipe(pipe_fds));
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int in = open("/proc/cpuinfo", O_RDONLY);
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ASSERT_NE(in, -1);
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TemporaryFile tf;
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ssize_t bytes_read = splice(in, 0, pipe_fds[1], NULL, 8*1024, SPLICE_F_MORE | SPLICE_F_MOVE);
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ASSERT_NE(bytes_read, -1);
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ssize_t bytes_written = splice(pipe_fds[0], NULL, tf.fd, 0, bytes_read, SPLICE_F_MORE | SPLICE_F_MOVE);
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ASSERT_EQ(bytes_read, bytes_written);
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close(pipe_fds[0]);
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close(pipe_fds[1]);
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close(in);
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}
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TEST(fcntl, vmsplice) {
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int pipe_fds[2];
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ASSERT_EQ(0, pipe(pipe_fds));
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iovec v[2];
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v[0].iov_base = const_cast<char*>("hello ");
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v[0].iov_len = 6;
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v[1].iov_base = const_cast<char*>("world\n");
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v[1].iov_len = 6;
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ssize_t bytes_written = vmsplice(pipe_fds[1], v, sizeof(v)/sizeof(iovec), 0);
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ASSERT_EQ(v[0].iov_len + v[1].iov_len, static_cast<size_t>(bytes_written));
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close(pipe_fds[1]);
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char buf[BUFSIZ];
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FILE* fp = fdopen(pipe_fds[0], "r");
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ASSERT_TRUE(fp != NULL);
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ASSERT_TRUE(fgets(buf, sizeof(buf), fp) != NULL);
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fclose(fp);
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ASSERT_STREQ("hello world\n", buf);
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}
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TEST(fcntl, tee) {
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char expected[256];
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FILE* expected_fp = fopen("/proc/version", "r");
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ASSERT_TRUE(expected_fp != NULL);
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ASSERT_TRUE(fgets(expected, sizeof(expected), expected_fp) != NULL);
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fclose(expected_fp);
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int pipe1[2];
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ASSERT_EQ(0, pipe(pipe1));
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int pipe2[2];
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ASSERT_EQ(0, pipe(pipe2));
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int in = open("/proc/version", O_RDONLY);
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ASSERT_NE(in, -1);
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// Write /proc/version into pipe1.
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ssize_t bytes_read = splice(in, 0, pipe1[1], NULL, 8*1024, SPLICE_F_MORE | SPLICE_F_MOVE);
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ASSERT_NE(bytes_read, -1);
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close(pipe1[1]);
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// Tee /proc/version from pipe1 into pipe2.
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ssize_t bytes_teed = tee(pipe1[0], pipe2[1], SIZE_MAX, 0);
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ASSERT_EQ(bytes_read, bytes_teed);
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close(pipe2[1]);
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// The out fds of both pipe1 and pipe2 should now contain /proc/version.
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char buf1[BUFSIZ];
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FILE* fp1 = fdopen(pipe1[0], "r");
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ASSERT_TRUE(fp1 != NULL);
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ASSERT_TRUE(fgets(buf1, sizeof(buf1), fp1) != NULL);
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fclose(fp1);
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char buf2[BUFSIZ];
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FILE* fp2 = fdopen(pipe2[0], "r");
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ASSERT_TRUE(fp2 != NULL);
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ASSERT_TRUE(fgets(buf2, sizeof(buf2), fp2) != NULL);
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fclose(fp2);
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ASSERT_STREQ(expected, buf1);
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ASSERT_STREQ(expected, buf2);
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}
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