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Changes from review epoll() implementation for consistency with NuttX naming and coding style

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This commit is contained in:
Gregory Nutt
2015-08-10 10:38:41 -06:00
parent 0c34ef7468
commit c74dc5f83f
6 changed files with 280 additions and 118 deletions
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include/sys/epoll.h
+61 -10
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@@ -1,8 +1,59 @@
#ifndef _EPOLL__H
#define _EPOLL__H
/****************************************************************************
* fs/vfs/fs_epoll.c
*
* Copyright (C) 2015 Anton D. Kachalov. All rights reserved.
* Author: Anton D. Kachalov <mouse@mayc.ru>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __INCLUDE_NUTTX_SYS_EPOLL_H
#define __INCLUDE_NUTTX_SYS_EPOLL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <poll.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define EPOLL_CTL_ADD 1 /* Add a file descriptor to the interface. */
#define EPOLL_CTL_DEL 2 /* Remove a file descriptor from the interface. */
#define EPOLL_CTL_MOD 3 /* Change file descriptor epoll_event structure. */
/****************************************************************************
* Public Types
****************************************************************************/
enum EPOLL_EVENTS
{
EPOLLIN = POLLIN,
@@ -25,19 +76,15 @@ enum EPOLL_EVENTS
#define EPOLLHUP EPOLLHUP
};
#define EPOLL_CTL_ADD 1 /* Add a file descriptor to the interface. */
#define EPOLL_CTL_DEL 2 /* Remove a file descriptor from the interface. */
#define EPOLL_CTL_MOD 3 /* Change file descriptor epoll_event structure. */
typedef union poll_data
{
int fd; /* The descriptor being polled */
int fd; /* The descriptor being polled */
} epoll_data_t;
struct epoll_event
{
epoll_data_t data;
sem_t *sem; /* Pointer to semaphore used to post output event */
FAR sem_t *sem; /* Pointer to semaphore used to post output event */
pollevent_t events; /* The input event flags */
pollevent_t revents; /* The output event flags */
FAR void *priv; /* For use by drivers */
@@ -47,13 +94,17 @@ struct epoll_head
{
int size;
int occupied;
struct epoll_event *evs;
FAR struct epoll_event *evs;
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
int epoll_create(int size);
int epoll_ctl(int epfd, int op, int fd, struct epoll_event *ev);
int epoll_wait(int epfd, struct epoll_event *evs, int maxevents, int timeout);
void epoll_close(int epfd);
#endif
#endif /* __INCLUDE_NUTTX_SYS_EPOLL_H */