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| | #define _GNU_SOURCE
#include <poll.h>
#include <signal.h>
#include <errno.h>
#include "syscall.h"
#define IS32BIT(x) !((x)+0x80000000ULL>>32)
#define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63))
int ppoll(struct pollfd *fds, nfds_t n, const struct timespec *to, const sigset_t *mask)
{
time_t s = to ? to->tv_sec : 0;
long ns = to ? to->tv_nsec : 0;
#ifdef SYS_ppoll_time64
static int use_ppoll_time64 = 1;
int r = -ENOSYS;
if (use_ppoll_time64) {
if (SYS_ppoll == SYS_ppoll_time64 || !IS32BIT(s))
r = __syscall_cp(SYS_ppoll_time64, fds, n,
to ? ((long long[]){s, ns}) : 0,
mask, _NSIG/8);
if (SYS_ppoll == SYS_ppoll_time64 || r != -ENOSYS)
return __syscall_ret(r);
else use_ppoll_time64 = 0;
}
s = CLAMP(s);
#endif
return syscall_cp(SYS_ppoll, fds, n,
to ? ((long[]){s, ns}) : 0, mask, _NSIG/8);
}
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