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w_epoll.h
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w_epoll.h
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/*
* epoll wrapper functions
*
* 2011-2017, Operating Systems
*/
#ifndef W_EPOLL_H_
#define W_EPOLL_H_ 1
#ifdef __cplusplus
extern "C" {
#endif
#define EPOLL_TIMEOUT_INFINITE -1
static inline int w_epoll_create(void)
{
return epoll_create(10);
}
static inline int w_epoll_add_fd_in(int epollfd, int fd)
{
struct epoll_event ev;
ev.events = EPOLLIN;
ev.data.fd = fd;
return epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev);
}
static inline int w_epoll_add_fd_out(int epollfd, int fd)
{
struct epoll_event ev;
ev.events = EPOLLOUT;
ev.data.fd = fd;
return epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev);
}
static inline int w_epoll_add_fd_inout(int epollfd, int fd)
{
struct epoll_event ev;
ev.events = EPOLLIN | EPOLLOUT;
ev.data.fd = fd;
return epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev);
}
static inline int w_epoll_update_fd_in(int epollfd, int fd)
{
struct epoll_event ev;
ev.events = EPOLLIN;
ev.data.fd = fd;
return epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &ev);
}
static inline int w_epoll_update_fd_out(int epollfd, int fd)
{
struct epoll_event ev;
ev.events = EPOLLOUT;
ev.data.fd = fd;
return epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &ev);
}
static inline int w_epoll_update_fd_inout(int epollfd, int fd)
{
struct epoll_event ev;
ev.events = EPOLLIN | EPOLLOUT;
ev.data.fd = fd;
return epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &ev);
}
static inline int w_epoll_remove_fd(int epollfd, int fd)
{
struct epoll_event ev;
/*
* ev needn't be initialized
* It has to be passed to epoll as a non-NULL argument for
* pre-2.6.9 kernels.
*/
ev.events = EPOLLIN;
ev.data.fd = fd;
return epoll_ctl(epollfd, EPOLL_CTL_DEL, fd, &ev);
}
static inline int w_epoll_add_ptr_in(int epollfd, int fd, void *ptr)
{
struct epoll_event ev;
ev.events = EPOLLIN;
ev.data.ptr = ptr;
return epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev);
}
static inline int w_epoll_add_ptr_out(int epollfd, int fd, void *ptr)
{
struct epoll_event ev;
ev.events = EPOLLOUT;
ev.data.ptr = ptr;
return epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev);
}
static inline int w_epoll_add_ptr_inout(int epollfd, int fd, void *ptr)
{
struct epoll_event ev;
ev.events = EPOLLIN | EPOLLOUT;
ev.data.ptr = ptr;
return epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev);
}
static inline int w_epoll_update_ptr_in(int epollfd, int fd, void *ptr)
{
struct epoll_event ev;
ev.events = EPOLLIN;
ev.data.ptr = ptr;
return epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &ev);
}
static inline int w_epoll_update_ptr_out(int epollfd, int fd, void *ptr)
{
struct epoll_event ev;
ev.events = EPOLLOUT;
ev.data.ptr = ptr;
return epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &ev);
}
static inline int w_epoll_update_ptr_inout(int epollfd, int fd, void *ptr)
{
struct epoll_event ev;
ev.events = EPOLLIN | EPOLLOUT;
ev.data.ptr = ptr;
return epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &ev);
}
static inline int w_epoll_remove_ptr(int epollfd, int fd, void *ptr)
{
struct epoll_event ev;
/*
* ev needn't be initialized
* It has to be passed to epoll as a non-NULL argument for
* pre-2.6.9 kernels.
*/
ev.events = EPOLLIN;
ev.data.ptr = ptr;
return epoll_ctl(epollfd, EPOLL_CTL_DEL, fd, &ev);
}
static inline int w_epoll_wait_infinite(int epollfd, struct epoll_event *rev)
{
return epoll_wait(epollfd, rev, 1, EPOLL_TIMEOUT_INFINITE);
}
#ifdef __cplusplus
}
#endif
#endif /* EPOLL_H_ */