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/* COVERAGE: fadvise64 fadvise64_64 */
#define _GNU_SOURCE
#define _LARGEFILE64_SOURCE
#define _ISOC99_SOURCE /* Needed for LLONG_MAX on RHEL5 */
#define _FILE_OFFSET_BITS 64
#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <limits.h>
#include <unistd.h>
#include <sys/syscall.h>
/*
* There are actually 2 related syscalls here:
*
* - fadvise64(int fd, loff_t offset, size_t len, int advice)
* - fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
*
* The difference is that on fadvise64(), 'offset' is 64-bit and 'len'
* is 64-bits (on a 64-bit system) or 32-bits (on a 32-bit system),
* while on fadvise64_64(), both 'offset' and 'len' are always
* 64-bits. posix_fadvise() is a wrapper around fadvice64_64(), since
* both 'offset' and 'len' are always 64-bits.
*
* So, let's define our own fadvice64() wrapper.
*/
#ifdef __NR_fadvise64
int __fadvise64(int fd, loff_t offset, size_t len, int advice)
{
#if defined(__powerpc__) && !defined(__powerpc64__)
/* ppc (not ppc64) has an extra unused argument as arg 2 */
return syscall(__NR_fadvise64, fd, 0, (unsigned int)(offset >> 32),
(unsigned int)offset, len, advice);
#else
return syscall(__NR_fadvise64, fd, offset, len, advice);
#endif
}
#endif
int main()
{
int fd;
fd = open("foobar", O_WRONLY|O_CREAT, S_IRWXU);
posix_fadvise(fd, 0, 1024, POSIX_FADV_NORMAL);
//staptest// fadvise64 (NNNN, 0, 1024, POSIX_FADV_NORMAL) = 0
/* Limit testing. */
posix_fadvise(-1, 0, 1024, POSIX_FADV_RANDOM);
//staptest// fadvise64 (-1, 0, 1024, POSIX_FADV_RANDOM) = NNNN
posix_fadvise(fd, -1, 1024, POSIX_FADV_SEQUENTIAL);
//staptest// fadvise64 (NNNN, -1, 1024, POSIX_FADV_SEQUENTIAL) = NNNN
posix_fadvise(fd, 0, -1, POSIX_FADV_WILLNEED);
//staptest// fadvise64 (NNNN, 0, -1, POSIX_FADV_WILLNEED) = NNNN
posix_fadvise(fd, LLONG_MAX, 0, POSIX_FADV_DONTNEED);
//staptest// fadvise64 (NNNN, 9223372036854775807, 0, POSIX_FADV_DONTNEED) = NNNN
posix_fadvise(fd, 0x72345678deadbeefLL, 0, POSIX_FADV_DONTNEED);
//staptest// fadvise64 (NNNN, 8229297496244731631, 0, POSIX_FADV_DONTNEED) = NNNN
posix_fadvise(fd, 0, LLONG_MAX, POSIX_FADV_DONTNEED);
//staptest// fadvise64 (NNNN, 0, 9223372036854775807, POSIX_FADV_DONTNEED) = NNNN
posix_fadvise(fd, 0, 0x72345678deadbeefLL, POSIX_FADV_DONTNEED);
//staptest// fadvise64 (NNNN, 0, 8229297496244731631, POSIX_FADV_DONTNEED) = NNNN
posix_fadvise(fd, 0, 1024, -1);
//staptest// fadvise64 (NNNN, 0, 1024, 0x[f]+) = NNNN
#ifdef __NR_fadvise64
__fadvise64(fd, 0, 1024, POSIX_FADV_NORMAL);
//staptest// fadvise64 (NNNN, 0, 1024, POSIX_FADV_NORMAL) = 0
/* Limit testing. */
__fadvise64(-1, 0, 1024, POSIX_FADV_RANDOM);
//staptest// fadvise64 (-1, 0, 1024, POSIX_FADV_RANDOM) = NNNN
__fadvise64(fd, -1, 1024, POSIX_FADV_SEQUENTIAL);
//staptest// fadvise64 (NNNN, -1, 1024, POSIX_FADV_SEQUENTIAL) = NNNN
__fadvise64(fd, 0, -1, POSIX_FADV_WILLNEED);
//staptest// fadvise64 (NNNN, 0, -1, POSIX_FADV_WILLNEED) = NNNN
__fadvise64(fd, LLONG_MAX, 0, POSIX_FADV_DONTNEED);
//staptest// fadvise64 (NNNN, 9223372036854775807, 0, POSIX_FADV_DONTNEED) = NNNN
__fadvise64(fd, 0x72345678deadbeefLL, 0, POSIX_FADV_DONTNEED);
//staptest// fadvise64 (NNNN, 8229297496244731631, 0, POSIX_FADV_DONTNEED) = NNNN
__fadvise64(fd, 0, LONG_MAX, POSIX_FADV_DONTNEED);
#if __WORDSIZE == 64
//staptest// fadvise64 (NNNN, 0, 9223372036854775807, POSIX_FADV_DONTNEED) = NNNN
#else
//staptest// fadvise64 (NNNN, 0, 2147483647, POSIX_FADV_DONTNEED) = NNNN
#endif
__fadvise64(fd, 0, 1024, -1);
//staptest// fadvise64 (NNNN, 0, 1024, 0x[f]+) = NNNN
#endif
close(fd);
return 0;
}
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