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| /* | |
| * Copyright (c) International Business Machines Corp., 2006 | |
| * Author Yi Yang <yyangcdl@cn.ibm.com> | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation; either version 2 of the License, or | |
| * (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
| * the GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software Foundation, | |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| /* | |
| * DESCRIPTION | |
| * This test case will verify basic function of splice | |
| * added by kernel 2.6.17 or up. | |
| * | |
| */ | |
| #define _GNU_SOURCE | |
| #include <errno.h> | |
| #include <string.h> | |
| #include <signal.h> | |
| #include <sys/types.h> | |
| #include <fcntl.h> | |
| #include "tst_test.h" | |
| #include "lapi/splice.h" | |
| #define TEST_BLOCK_SIZE 1024 | |
| #define TESTFILE1 "splice_testfile_1" | |
| #define TESTFILE2 "splice_testfile_2" | |
| static char buffer[TEST_BLOCK_SIZE]; | |
| static int fd_in, fd_out; | |
| static void check_file(void) | |
| { | |
| int i; | |
| char splicebuffer[TEST_BLOCK_SIZE]; | |
| fd_out = SAFE_OPEN(TESTFILE2, O_RDONLY); | |
| SAFE_READ(1, fd_out, splicebuffer, TEST_BLOCK_SIZE); | |
| for (i = 0; i < TEST_BLOCK_SIZE; i++) { | |
| if (buffer[i] != splicebuffer[i]) | |
| break; | |
| } | |
| if (i < TEST_BLOCK_SIZE) | |
| tst_res(TFAIL, "Wrong data read from the buffer at %i", i); | |
| else | |
| tst_res(TPASS, "Written data has been read back correctly"); | |
| SAFE_CLOSE(fd_out); | |
| } | |
| static void splice_test(void) | |
| { | |
| int pipes[2]; | |
| int ret; | |
| fd_in = SAFE_OPEN(TESTFILE1, O_RDONLY); | |
| fd_out = SAFE_OPEN(TESTFILE2, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| SAFE_PIPE(pipes); | |
| ret = splice(fd_in, NULL, pipes[1], NULL, TEST_BLOCK_SIZE, 0); | |
| if (ret < 0) | |
| tst_brk(TBROK | TERRNO, "splice(fd_in, pipe) failed"); | |
| ret = splice(pipes[0], NULL, fd_out, NULL, TEST_BLOCK_SIZE, 0); | |
| if (ret < 0) | |
| tst_brk(TBROK | TERRNO, "splice(pipe, fd_out) failed"); | |
| SAFE_CLOSE(fd_in); | |
| SAFE_CLOSE(fd_out); | |
| SAFE_CLOSE(pipes[0]); | |
| SAFE_CLOSE(pipes[1]); | |
| check_file(); | |
| } | |
| static void setup(void) | |
| { | |
| int i; | |
| if (tst_fs_type(".") == TST_NFS_MAGIC) { | |
| if (tst_kvercmp(2, 6, 32) < 0) | |
| tst_brk(TCONF, "Cannot do splice on a file" | |
| " on NFS filesystem before 2.6.32"); | |
| } | |
| for (i = 0; i < TEST_BLOCK_SIZE; i++) | |
| buffer[i] = i & 0xff; | |
| fd_in = SAFE_OPEN(TESTFILE1, O_WRONLY | O_CREAT | O_TRUNC, 0777); | |
| SAFE_WRITE(1, fd_in, buffer, TEST_BLOCK_SIZE); | |
| SAFE_CLOSE(fd_in); | |
| } | |
| static void cleanup(void) | |
| { | |
| if (fd_in > 0) | |
| SAFE_CLOSE(fd_in); | |
| if (fd_out > 0) | |
| SAFE_CLOSE(fd_out); | |
| } | |
| static struct tst_test test = { | |
| .setup = setup, | |
| .cleanup = cleanup, | |
| .test_all = splice_test, | |
| .needs_tmpdir = 1, | |
| .min_kver = "2.6.17", | |
| }; |