From 6c63e2d8dfb1dd8b6383b4758080841a0fad37a4 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 11 Apr 2016 15:04:59 -0300 Subject: Consolidate fallocate{64} implementations This patch consolidates all the fallocate{64} implementation for Linux in only one (sysdeps/unix/sysv/linux/fallocate{64}.c). It also removes the syscall from the auto-generation using assembly macros. The new macro SYSCALL_LL{64} is used to handle the offset argument. Checked on x86_64, x32, i386, aarch64, and ppc64le. * sysdeps/unix/sysv/linux/Makefile (test): Add tst-fallocate and tst-fallocate64. * sysdeps/unix/sysv/linux/tst-fallocate.c: New file. * sysdeps/unix/sysv/linux/tst-fallocate64.c: Likewise. * sysdeps/unix/sysv/linux/tst-fallocate-common.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/fallocate.c: Remove file. * sysdeps/unix/sysv/linux/mips/mips64/n32/fallocate64.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate64.c: Likewise. * sysdeps/unix/sysv/linux/wordsize-64/fallocate.c: Likewise. * sysdeps/unix/sysv/linux/wordsize-64/fallocate64.c: Likewise. * sysdeps/unix/sysv/linux/fallocate.c (fallocate): Use SYSCALL_LL macro on offset argument. * sysdeps/unix/sysv/linux/fallocate64.c (fallocate64): Use SYSCALL_LL64 on offset argument. * test-skeleton.c (FAIL_RET): Add macro. (FAIL_EXIT): Likewise. (FAIL_EXIT1): Likewise. (_FAIL): Likewise. --- sysdeps/unix/sysv/linux/tst-fallocate-common.c | 87 ++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/tst-fallocate-common.c (limited to 'sysdeps/unix/sysv/linux/tst-fallocate-common.c') diff --git a/sysdeps/unix/sysv/linux/tst-fallocate-common.c b/sysdeps/unix/sysv/linux/tst-fallocate-common.c new file mode 100644 index 0000000000..9879488687 --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-fallocate-common.c @@ -0,0 +1,87 @@ +/* Basic fallocate test (no specific flags is checked). + 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 + . */ + +#include +#include +#include +#include + +static void do_prepare (void); +#define PREPARE(argc, argv) do_prepare () +static int do_test (void); +#define TEST_FUNCTION do_test () + +#define TIMEOUT 20 /* sec. */ + +#define XSTR(s) STR(S) +#define STR(s) #s + +#include + +static char *temp_filename; +static int temp_fd; + +void +do_prepare (void) +{ + temp_fd = create_temp_file ("tst-fallocate.", &temp_filename); + if (temp_fd == -1) + FAIL_EXIT1 ("cannot create temporary file: %m"); +} + +static int +do_test_with_offset (off_t offset) +{ + int ret; + struct stat finfo; +#define BLK_SIZE 1024 + char bwrite[BLK_SIZE] = { 0xf0 }; + char bread[BLK_SIZE]; + + /* It tries to fallocate 1024 bytes from 'offset' and then write 1024 bytes. + After both operation rewind the file descriptor and read 1024 bytes + and check if both buffer have the same contents. */ + ret = fallocate (temp_fd, 0, offset, BLK_SIZE); + if (ret == -1) + FAIL_EXIT1 ("fallocate failed"); + + ret = fstat (temp_fd, &finfo); + if (ret == -1) + FAIL_EXIT1 ("fstat failed"); + + if (finfo.st_size < (offset + BLK_SIZE)) + FAIL_EXIT1 ("size of first fallocate less than expected (%llu)", + (long long unsigned int)offset + BLK_SIZE); + + if (lseek (temp_fd, offset, SEEK_SET) == (off_t) -1) + FAIL_EXIT1 ("fseek (0, SEEK_SET) failed"); + + if (write (temp_fd, bwrite, BLK_SIZE) != BLK_SIZE) + FAIL_EXIT1 ("fail trying to write " XSTR (BLK_SIZE) " bytes"); + + if (lseek (temp_fd, offset, SEEK_SET) == (off_t) -1) + FAIL_EXIT1 ("fseek (0, SEEK_SET) failed"); + + if (read (temp_fd, bread, BLK_SIZE) != BLK_SIZE) + FAIL_EXIT1 ("fail trying to read " XSTR (BLK_SIZE) " bytes"); + + if (memcmp (bwrite, bread, BLK_SIZE) != 0) + FAIL_EXIT1 ("buffer written different than buffer readed"); + + return 0; +} -- cgit 1.4.1