github.com/afumu/libc@v0.0.6/musl/src/select/poll.c (about)

     1  #include <poll.h>
     2  #include <time.h>
     3  #include <signal.h>
     4  #include "syscall.h"
     5  
     6  int poll(struct pollfd *fds, nfds_t n, int timeout)
     7  {
     8  #ifdef SYS_poll
     9  	return syscall_cp(SYS_poll, fds, n, timeout);
    10  #else
    11  	return syscall_cp(SYS_ppoll, fds, n, timeout>=0 ?
    12  		&((struct timespec){ .tv_sec = timeout/1000,
    13  		.tv_nsec = timeout%1000*1000000 }) : 0, 0, _NSIG/8);
    14  #endif
    15  }