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#include <sys/select.h> #include <signal.h> #include <stdint.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 pselect(int n, fd_set *restrict rfds, fd_set *restrict wfds, fd_set *restrict efds, const struct timespec *restrict ts, const sigset_t *restrict mask) { syscall_arg_t data[2] = { (uintptr_t)mask, _NSIG/8 }; time_t s = ts ? ts->tv_sec : 0; long ns = ts ? ts->tv_nsec : 0; #ifdef SYS_pselect6_time64 int r = -ENOSYS; if (SYS_pselect6 == SYS_pselect6_time64 || !IS32BIT(s)) r = __syscall_cp(SYS_pselect6_time64, n, rfds, wfds, efds, ts ? ((long long[]){s, ns}) : 0, data); if (SYS_pselect6 == SYS_pselect6_time64 || r!=-ENOSYS) return __syscall_ret(r); s = CLAMP(s); #endif return syscall_cp(SYS_pselect6, n, rfds, wfds, efds, ts ? ((long[]){s, ns}) : 0, data); } |