diff options
Diffstat (limited to 'libc/sysdeps/linux/common/sync_file_range.c')
| -rw-r--r-- | libc/sysdeps/linux/common/sync_file_range.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/sync_file_range.c b/libc/sysdeps/linux/common/sync_file_range.c new file mode 100644 index 000000000..53f7ae6a1 --- /dev/null +++ b/libc/sysdeps/linux/common/sync_file_range.c @@ -0,0 +1,33 @@ +/* vi: set sw=4 ts=4: */ +/* + * sync_file_range() for uClibc + * + * Copyright (C) 2008 Bernhard Reutner-Fischer <uclibc@uclibc.org> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <sys/syscall.h> +#if defined __USE_GNU +#include <fcntl.h> + +#if defined __NR_sync_file_range && defined __UCLIBC_HAS_LFS__ +#define __NR___syscall_sync_file_range __NR_sync_file_range +static __inline__ _syscall6(int, __syscall_sync_file_range, int, fd, + off_t, offset_hi, off_t, offset_lo, + off_t, nbytes_hi, off_t, nbytes_lo, unsigned int, flags); +int sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags) +{ + return __syscall_sync_file_range(fd, + __LONG_LONG_PAIR((long)(offset >> 32), (long)(offset & 0xffffffff)), + __LONG_LONG_PAIR((long)(nbytes >> 32), (long)(nbytes & 0xffffffff)), + flags); +} +#elif defined __UCLIBC_HAS_STUBS__ +int sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags) +{ + __set_errno(ENOSYS); + return -1; +} +#endif +#endif |