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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      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
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     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.
     15  */
     16 
     17 #include <gtest/gtest.h>
     18 #include "TemporaryFile.h"
     19 
     20 #include <sys/sendfile.h>
     21 #include <sys/types.h>
     22 #include <sys/stat.h>
     23 #include <fcntl.h>
     24 #include <errno.h>
     25 
     26 TEST(sys_sendfile, sendfile) {
     27   TemporaryFile src_file;
     28   ASSERT_EQ(5, TEMP_FAILURE_RETRY(write(src_file.fd, "hello", 5)));
     29 
     30   TemporaryFile dst_file;
     31 
     32   off_t offset = 2;
     33   size_t count = 2;
     34   ssize_t rc = sendfile(dst_file.fd, src_file.fd, &offset, count);
     35   ASSERT_EQ(2, rc);
     36   ASSERT_EQ(4, offset);
     37 
     38   ASSERT_EQ(0, lseek(dst_file.fd, 0, SEEK_SET));
     39   char buf[3];
     40   buf[2] = '\0';
     41   ASSERT_EQ(2, TEMP_FAILURE_RETRY(read(dst_file.fd, &buf, 2)));
     42   ASSERT_STREQ("ll", buf);
     43 }
     44 
     45 TEST(sys_sendfile, sendfile64) {
     46   TemporaryFile src_file;
     47   ASSERT_EQ(5, TEMP_FAILURE_RETRY(write(src_file.fd, "hello", 5)));
     48 
     49   TemporaryFile dst_file;
     50 
     51   off64_t offset = 2;
     52   size_t count = 2;
     53   ssize_t rc = sendfile64(dst_file.fd, src_file.fd, &offset, count);
     54   ASSERT_EQ(2, rc);
     55   ASSERT_EQ(4, offset);
     56 
     57   ASSERT_EQ(0, lseek(dst_file.fd, 0, SEEK_SET));
     58   char buf[3];
     59   buf[2] = '\0';
     60   ASSERT_EQ(2, TEMP_FAILURE_RETRY(read(dst_file.fd, &buf, 2)));
     61   ASSERT_STREQ("ll", buf);
     62 }
     63