2 * Copyright (C) 2013 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <gtest/gtest.h>
22 #include "TemporaryFile.h"
24 TEST(fcntl, fcntl_smoke) {
25 int fd = open("/proc/version", O_RDONLY);
26 ASSERT_TRUE(fd != -1);
28 int flags = fcntl(fd, F_GETFD);
29 ASSERT_TRUE(flags != -1);
30 ASSERT_EQ(0, flags & FD_CLOEXEC);
32 int rc = fcntl(fd, F_SETFD, FD_CLOEXEC);
35 flags = fcntl(fd, F_GETFD);
36 ASSERT_TRUE(flags != -1);
37 ASSERT_EQ(FD_CLOEXEC, flags & FD_CLOEXEC);
42 TEST(fcntl, open_open64) {
45 fd = open("/proc/version", O_RDONLY);
46 ASSERT_TRUE(fd != -1);
49 fd = open64("/proc/version", O_RDONLY);
50 ASSERT_TRUE(fd != -1);
54 TEST(fcntl, openat_openat64) {
57 fd = openat(AT_FDCWD, "/proc/version", O_RDONLY);
58 ASSERT_TRUE(fd != -1);
61 fd = openat64(AT_FDCWD, "/proc/version", O_RDONLY);
62 ASSERT_TRUE(fd != -1);
66 TEST(fcntl, creat_creat64) {
67 ASSERT_EQ(-1, creat("", 0666));
68 ASSERT_EQ(ENOENT, errno);
69 ASSERT_EQ(-1, creat64("", 0666));
70 ASSERT_EQ(ENOENT, errno);
73 TEST(fcntl, posix_fadvise) {
77 EXPECT_EQ(EBADF, posix_fadvise(-1, 0, 0, POSIX_FADV_NORMAL));
80 EXPECT_EQ(EBADF, posix_fadvise64(-1, 0, 0, POSIX_FADV_NORMAL));
83 EXPECT_EQ(EINVAL, posix_fadvise(tf.fd, 0, 0, -1));
86 EXPECT_EQ(EINVAL, posix_fadvise64(tf.fd, 0, 0, -1));
89 EXPECT_EQ(0, posix_fadvise(tf.fd, 0, 0, POSIX_FADV_NORMAL));
90 EXPECT_EQ(0, posix_fadvise64(tf.fd, 0, 0, POSIX_FADV_NORMAL));
93 TEST(fcntl, fallocate_EINVAL) {
96 // fallocate/fallocate64 set errno.
97 // posix_fallocate/posix_fallocate64 return an errno value.
100 ASSERT_EQ(-1, fallocate(tf.fd, 0, 0, -1));
101 ASSERT_EQ(EINVAL, errno);
104 ASSERT_EQ(-1, fallocate64(tf.fd, 0, 0, -1));
105 ASSERT_EQ(EINVAL, errno);
108 ASSERT_EQ(EINVAL, posix_fallocate(tf.fd, 0, -1));
112 ASSERT_EQ(EINVAL, posix_fallocate64(tf.fd, 0, -1));
116 TEST(fcntl, fallocate) {
119 ASSERT_EQ(0, fstat(tf.fd, &sb));
120 ASSERT_EQ(0, sb.st_size);
122 #if defined(__BIONIC__)
123 ASSERT_EQ(0, fallocate(tf.fd, 0, 0, 1));
124 ASSERT_EQ(0, fstat(tf.fd, &sb));
125 ASSERT_EQ(1, sb.st_size);
127 ASSERT_EQ(0, fallocate64(tf.fd, 0, 0, 2));
128 ASSERT_EQ(0, fstat(tf.fd, &sb));
129 ASSERT_EQ(2, sb.st_size);
132 ASSERT_EQ(0, posix_fallocate(tf.fd, 0, 3));
133 ASSERT_EQ(0, fstat(tf.fd, &sb));
134 ASSERT_EQ(3, sb.st_size);
136 ASSERT_EQ(0, posix_fallocate64(tf.fd, 0, 4));
137 ASSERT_EQ(0, fstat(tf.fd, &sb));
138 ASSERT_EQ(4, sb.st_size);
141 TEST(fcntl, f_getlk64) {
142 int fd = open64("/proc/version", O_RDONLY);
143 ASSERT_TRUE(fd != -1);
145 struct flock64 check_lock;
146 check_lock.l_type = F_WRLCK;
147 check_lock.l_start = 0;
148 check_lock.l_whence = SEEK_SET;
149 check_lock.l_len = 0;
151 int rc = fcntl(fd, F_GETLK64, &check_lock);
157 TEST(fcntl, splice) {
159 ASSERT_EQ(0, pipe(pipe_fds));
161 int in = open("/proc/cpuinfo", O_RDONLY);
166 ssize_t bytes_read = splice(in, 0, pipe_fds[1], NULL, 8*1024, SPLICE_F_MORE | SPLICE_F_MOVE);
167 ASSERT_NE(bytes_read, -1);
169 ssize_t bytes_written = splice(pipe_fds[0], NULL, tf.fd, 0, bytes_read, SPLICE_F_MORE | SPLICE_F_MOVE);
170 ASSERT_EQ(bytes_read, bytes_written);
177 TEST(fcntl, vmsplice) {
179 ASSERT_EQ(0, pipe(pipe_fds));
182 v[0].iov_base = const_cast<char*>("hello ");
184 v[1].iov_base = const_cast<char*>("world\n");
186 ssize_t bytes_written = vmsplice(pipe_fds[1], v, sizeof(v)/sizeof(iovec), 0);
187 ASSERT_EQ(v[0].iov_len + v[1].iov_len, static_cast<size_t>(bytes_written));
191 FILE* fp = fdopen(pipe_fds[0], "r");
192 ASSERT_TRUE(fp != NULL);
193 ASSERT_TRUE(fgets(buf, sizeof(buf), fp) != NULL);
195 ASSERT_STREQ("hello world\n", buf);
200 FILE* expected_fp = fopen("/proc/version", "r");
201 ASSERT_TRUE(expected_fp != NULL);
202 ASSERT_TRUE(fgets(expected, sizeof(expected), expected_fp) != NULL);
206 ASSERT_EQ(0, pipe(pipe1));
209 ASSERT_EQ(0, pipe(pipe2));
211 int in = open("/proc/version", O_RDONLY);
214 // Write /proc/version into pipe1.
215 ssize_t bytes_read = splice(in, 0, pipe1[1], NULL, 8*1024, SPLICE_F_MORE | SPLICE_F_MOVE);
216 ASSERT_NE(bytes_read, -1);
219 // Tee /proc/version from pipe1 into pipe2.
220 ssize_t bytes_teed = tee(pipe1[0], pipe2[1], SIZE_MAX, 0);
221 ASSERT_EQ(bytes_read, bytes_teed);
224 // The out fds of both pipe1 and pipe2 should now contain /proc/version.
226 FILE* fp1 = fdopen(pipe1[0], "r");
227 ASSERT_TRUE(fp1 != NULL);
228 ASSERT_TRUE(fgets(buf1, sizeof(buf1), fp1) != NULL);
232 FILE* fp2 = fdopen(pipe2[0], "r");
233 ASSERT_TRUE(fp2 != NULL);
234 ASSERT_TRUE(fgets(buf2, sizeof(buf2), fp2) != NULL);
237 ASSERT_STREQ(expected, buf1);
238 ASSERT_STREQ(expected, buf2);