zig/lib/libc/musl/src/fcntl/posix_fadvise.c
Andrew Kelley 49d1a4c562 move lib dirs to lib subdir
also start prefering NtDll API. so far:
 * NtQueryInformationFile
 * NtClose

adds a performance workaround for windows unicode conversion. but that
should probably be removed before merging
2019-07-15 17:54:50 -04:00

19 lines
541 B
C

#include <fcntl.h>
#include "syscall.h"
int posix_fadvise(int fd, off_t base, off_t len, int advice)
{
#if defined(SYSCALL_FADVISE_6_ARG)
/* Some archs, at least arm and powerpc, have the syscall
* arguments reordered to avoid needing 7 argument registers
* due to 64-bit argument alignment. */
return -__syscall(SYS_fadvise, fd, advice,
__SYSCALL_LL_E(base), __SYSCALL_LL_E(len));
#else
return -__syscall(SYS_fadvise, fd, __SYSCALL_LL_O(base),
__SYSCALL_LL_E(len), advice);
#endif
}
weak_alias(posix_fadvise, posix_fadvise64);