diff options
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/tst-preadvwritev-common.c | 111 | ||||
| -rw-r--r-- | misc/tst-preadvwritev.c | 95 | ||||
| -rw-r--r-- | misc/tst-preadvwritev64.c | 35 |
3 files changed, 146 insertions, 95 deletions
diff --git a/misc/tst-preadvwritev-common.c b/misc/tst-preadvwritev-common.c new file mode 100644 index 0000000000..2b1e36f312 --- /dev/null +++ b/misc/tst-preadvwritev-common.c @@ -0,0 +1,111 @@ +/* Common definitions for preadv and pwritev. + Copyright (C) 2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sys/uio.h> + +static void do_prepare (void); +#define PREPARE(argc, argv) do_prepare () +static int do_test (void); +#define TEST_FUNCTION do_test () +#include "test-skeleton.c" + +static char *temp_filename; +static int temp_fd; + +static void +do_prepare (void) +{ + temp_fd = create_temp_file ("tst-preadvwritev.", &temp_filename); + if (temp_fd == -1) + { + printf ("cannot create temporary file: %m\n"); + exit (1); + } +} + +#define FAIL(str) \ + do { printf ("error: %s (line %d)\n", str, __LINE__); return 1; } while (0) + +static int +do_test_with_offset (off_t offset) +{ + struct iovec iov[2]; + ssize_t ret; + + char buf1[32]; + char buf2[64]; + + memset (buf1, 0xf0, sizeof buf1); + memset (buf2, 0x0f, sizeof buf2); + + /* Write two buffer with 32 and 64 bytes respectively. */ + memset (iov, 0, sizeof iov); + iov[0].iov_base = buf1; + iov[0].iov_len = sizeof buf1; + iov[1].iov_base = buf2; + iov[1].iov_len = sizeof buf2; + + ret = pwritev (temp_fd, iov, 2, offset); + if (ret == -1) + FAIL ("first pwritev returned -1"); + if (ret != (sizeof buf1 + sizeof buf2)) + FAIL ("first pwritev returned an unexpected value"); + + ret = pwritev (temp_fd, iov, 2, sizeof buf1 + sizeof buf2 + offset); + if (ret == -1) + FAIL ("second pwritev returned -1"); + if (ret != (sizeof buf1 + sizeof buf2)) + FAIL ("second pwritev returned an unexpected value"); + + char buf3[32]; + char buf4[64]; + + memset (buf3, 0x0f, sizeof buf3); + memset (buf4, 0xf0, sizeof buf4); + + iov[0].iov_base = buf3; + iov[0].iov_len = sizeof buf3; + iov[1].iov_base = buf4; + iov[1].iov_len = sizeof buf4; + + /* Now read two buffer with 32 and 64 bytes respectively. */ + ret = preadv (temp_fd, iov, 2, offset); + if (ret == -1) + FAIL ("first preadv returned -1"); + if (ret != (sizeof buf3 + sizeof buf4)) + FAIL ("first preadv returned an unexpected value"); + + if (memcmp (buf1, buf3, sizeof buf1) != 0) + FAIL ("first buffer from first preadv different than expected"); + if (memcmp (buf2, buf4, sizeof buf2) != 0) + FAIL ("second buffer from first preadv different than expected"); + + ret = preadv (temp_fd, iov, 2, sizeof buf3 + sizeof buf4 + offset); + if (ret == -1) + FAIL ("second preadv returned -1"); + if (ret != (sizeof buf3 + sizeof buf4)) + FAIL ("second preadv returned an unexpected value"); + + /* And compare the buffers read and written to check if there are equal. */ + if (memcmp (buf1, buf3, sizeof buf1) != 0) + FAIL ("first buffer from second preadv different than expected"); + if (memcmp (buf2, buf4, sizeof buf2) != 0) + FAIL ("second buffer from second preadv different than expected"); + + return 0; +} diff --git a/misc/tst-preadvwritev.c b/misc/tst-preadvwritev.c index 08deecca11..fb3f1298a2 100644 --- a/misc/tst-preadvwritev.c +++ b/misc/tst-preadvwritev.c @@ -16,99 +16,10 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sys/uio.h> +#include "tst-preadvwritev-common.c" -/* Allow testing of the 64-bit versions as well. */ -#ifndef PREADV -# define PREADV preadv -# define PWRITEV pwritev -#endif - -static void do_prepare (void); -static int do_test (void); -#define PREPARE(argc, argv) do_prepare () -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" - -static char *temp_filename; -static int temp_fd; - -void -do_prepare (void) -{ - temp_fd = create_temp_file ("tst-PREADVwritev.", &temp_filename); - if (temp_fd == -1) - { - printf ("cannot create temporary file: %m\n"); - exit (1); - } -} - -#define FAIL(str) \ - do { printf ("error: %s (line %d)\n", str, __LINE__); return 1; } while (0) - -int +static int do_test (void) { - struct iovec iov[2]; - ssize_t ret; - - char buf1[32]; - char buf2[64]; - - memset (buf1, 0xf0, sizeof buf1); - memset (buf2, 0x0f, sizeof buf2); - - memset (iov, 0, sizeof iov); - iov[0].iov_base = buf1; - iov[0].iov_len = sizeof buf1; - iov[1].iov_base = buf2; - iov[1].iov_len = sizeof buf2; - - ret = PWRITEV (temp_fd, iov, 2, 0); - if (ret == -1) - FAIL ("first PWRITEV returned -1"); - if (ret != (sizeof buf1 + sizeof buf2)) - FAIL ("first PWRITEV returned an unexpected value"); - - ret = PWRITEV (temp_fd, iov, 2, sizeof buf1 + sizeof buf2); - if (ret == -1) - FAIL ("second PWRITEV returned -1"); - if (ret != (sizeof buf1 + sizeof buf2)) - FAIL ("second PWRITEV returned an unexpected value"); - - char buf3[32]; - char buf4[64]; - - memset (buf3, 0x0f, sizeof buf3); - memset (buf4, 0xf0, sizeof buf4); - - iov[0].iov_base = buf3; - iov[0].iov_len = sizeof buf3; - iov[1].iov_base = buf4; - iov[1].iov_len = sizeof buf4; - - ret = PREADV (temp_fd, iov, 2, 0); - if (ret == -1) - FAIL ("first PREADV returned -1"); - if (ret != (sizeof buf3 + sizeof buf4)) - FAIL ("first PREADV returned an unexpected value"); - - if (memcmp (buf1, buf3, sizeof buf1) != 0) - FAIL ("first buffer from first PREADV different than expected"); - if (memcmp (buf2, buf4, sizeof buf2) != 0) - FAIL ("second buffer from first PREADV different than expected"); - - ret = PREADV (temp_fd, iov, 2, sizeof buf3 + sizeof buf4); - if (ret == -1) - FAIL ("second PREADV returned -1"); - if (ret != (sizeof buf3 + sizeof buf4)) - FAIL ("second PREADV returned an unexpected value"); - - if (memcmp (buf1, buf3, sizeof buf1) != 0) - FAIL ("first buffer from second PREADV different than expected"); - if (memcmp (buf2, buf4, sizeof buf2) != 0) - FAIL ("second buffer from second PREADV different than expected"); - - return 0; + return do_test_with_offset (0); } diff --git a/misc/tst-preadvwritev64.c b/misc/tst-preadvwritev64.c index ff6e134eab..53e153ed90 100644 --- a/misc/tst-preadvwritev64.c +++ b/misc/tst-preadvwritev64.c @@ -16,7 +16,36 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#define PREADV preadv64 -#define PWRITEV pwritev64 +#define _FILE_OFFSET_BITS 64 +#include "tst-preadvwritev-common.c" -#include "tst-preadvwritev.c" +static int +do_test (void) +{ + int ret; + + ret = do_test_with_offset (0); + + /* Create a sparse file larger than 4GB to check if offset is handled + correctly in p{write,read}v64. */ + off_t base_offset = UINT32_MAX + 2048LL; + ret += do_test_with_offset (base_offset); + + struct stat st; + if (fstat (temp_fd, &st) == -1) + { + printf ("error: fstat on temporary file failed: %m"); + return 1; + } + + /* The total size should base_offset plus 2 * 96. */ + off_t expected_value = base_offset + (2 * (96LL)); + if (st.st_size != expected_value) + { + printf ("error: file size different than expected (%jd != %jd)\n", + (intmax_t) expected_value, (intmax_t) st.st_size); + return 1; + } + + return ret; +} |