1*c9945492SAndroid Build Coastguard Worker #define _BSD_SOURCE
2*c9945492SAndroid Build Coastguard Worker #include <poll.h>
3*c9945492SAndroid Build Coastguard Worker #include <signal.h>
4*c9945492SAndroid Build Coastguard Worker #include <errno.h>
5*c9945492SAndroid Build Coastguard Worker #include "syscall.h"
6*c9945492SAndroid Build Coastguard Worker
7*c9945492SAndroid Build Coastguard Worker #define IS32BIT(x) !((x)+0x80000000ULL>>32)
8*c9945492SAndroid Build Coastguard Worker #define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63))
9*c9945492SAndroid Build Coastguard Worker
ppoll(struct pollfd * fds,nfds_t n,const struct timespec * to,const sigset_t * mask)10*c9945492SAndroid Build Coastguard Worker int ppoll(struct pollfd *fds, nfds_t n, const struct timespec *to, const sigset_t *mask)
11*c9945492SAndroid Build Coastguard Worker {
12*c9945492SAndroid Build Coastguard Worker time_t s = to ? to->tv_sec : 0;
13*c9945492SAndroid Build Coastguard Worker long ns = to ? to->tv_nsec : 0;
14*c9945492SAndroid Build Coastguard Worker #ifdef SYS_ppoll_time64
15*c9945492SAndroid Build Coastguard Worker int r = -ENOSYS;
16*c9945492SAndroid Build Coastguard Worker if (SYS_ppoll == SYS_ppoll_time64 || !IS32BIT(s))
17*c9945492SAndroid Build Coastguard Worker r = __syscall_cp(SYS_ppoll_time64, fds, n,
18*c9945492SAndroid Build Coastguard Worker to ? ((long long[]){s, ns}) : 0,
19*c9945492SAndroid Build Coastguard Worker mask, _NSIG/8);
20*c9945492SAndroid Build Coastguard Worker if (SYS_ppoll == SYS_ppoll_time64 || r != -ENOSYS)
21*c9945492SAndroid Build Coastguard Worker return __syscall_ret(r);
22*c9945492SAndroid Build Coastguard Worker s = CLAMP(s);
23*c9945492SAndroid Build Coastguard Worker #endif
24*c9945492SAndroid Build Coastguard Worker return syscall_cp(SYS_ppoll, fds, n,
25*c9945492SAndroid Build Coastguard Worker to ? ((long[]){s, ns}) : 0, mask, _NSIG/8);
26*c9945492SAndroid Build Coastguard Worker }
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