src/linux/epoll.c

   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 }