github.com/afumu/libc@v0.0.6/musl/src/linux/epoll.c (about)

     1  #include <sys/epoll.h>
     2  #include <signal.h>
     3  #include <errno.h>
     4  #include "syscall.h"
     5  
     6  int epoll_create(int size)
     7  {
     8  	return epoll_create1(0);
     9  }
    10  
    11  int epoll_create1(int flags)
    12  {
    13  	int r = __syscall(SYS_epoll_create1, flags);
    14  #ifdef SYS_epoll_create
    15  	if (r==-ENOSYS && !flags) r = __syscall(SYS_epoll_create, 1);
    16  #endif
    17  	return __syscall_ret(r);
    18  }
    19  
    20  int epoll_ctl(int fd, int op, int fd2, struct epoll_event *ev)
    21  {
    22  	return syscall(SYS_epoll_ctl, fd, op, fd2, ev);
    23  }
    24  
    25  int epoll_pwait(int fd, struct epoll_event *ev, int cnt, int to, const sigset_t *sigs)
    26  {
    27  	int r = __syscall(SYS_epoll_pwait, fd, ev, cnt, to, sigs, _NSIG/8);
    28  #ifdef SYS_epoll_wait
    29  	if (r==-ENOSYS && !sigs) r = __syscall(SYS_epoll_wait, fd, ev, cnt, to);
    30  #endif
    31  	return __syscall_ret(r);
    32  }
    33  
    34  int epoll_wait(int fd, struct epoll_event *ev, int cnt, int to)
    35  {
    36  	return epoll_pwait(fd, ev, cnt, to, 0);
    37  }