<commit_before>/*
 * Copyright (C) 2015 <NAME> <<EMAIL>>
 *
 * This file is subject to the terms and conditions of the GNU Lesser General
 * Public License v2.1. See the file LICENSE in the top level directory for
 * more details.
 */

/**
 * @ingroup     cpu_native
 * @{
 *
 * @file
 * @brief       Multiple asynchronus read on file descriptors
 *
 * @author      <NAME> <<EMAIL>>
 */
#ifndef ASYNC_READ_H
#define ASYNC_READ_H

#include <stdlib.h>
#include <poll.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief   Maximum number of file descriptors
 */
#ifndef ASYNC_READ_NUMOF
#define ASYNC_READ_NUMOF 2
#endif

/**
 * @brief   asynchronus read callback type
 */
typedef void (*native_async_read_callback_t)(int fd, void *arg);

/**
 * @brief    Interrupt callback information structure
 */
typedef struct {
    pid_t child_pid;                    /**< PID of the interrupt listener */
    native_async_read_callback_t cb;    /**< Interrupt callback funtion */
    void *arg;                          /**< Argument ptr for the callback */
    struct pollfd *fd;                  /**< sysfs gpio fd */
} async_read_t;

/**
 * @brief   initialize asynchronus read system
 *
 * This registers SIGIO signal handler.
 */
void native_async_read_setup(void);

/**
 * @brief   shutdown asynchronus read system
 *
 * This deregisters SIGIO signal handler.
 */
void native_async_read_cleanup(void);

/**
 * @brief   resume monitoring of file descriptors
 *
 * Call this function after reading file descriptors.<commit_msg>cpu/native: fix typo 'funtion' -> 'function'<commit_after>/*
 * Copyright (C) 2015 <NAME> <<EMAIL>>
 *
 * This file is subject to the terms and conditions of the GNU Lesser General
 * Public License v2.1. See the file LICENSE in the top level directory for
 * more details.
 */

/**
 * @ingroup     cpu_native
 * @{
 *
 * @file
 * @brief       Multiple asynchronus read on file descriptors
 *
 * @author      <NAME> <<EMAIL>>
 */
#ifndef ASYNC_READ_H
#define ASYNC_READ_H

#include <stdlib.h>
#include <poll.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief   Maximum number of file descriptors
 */
#ifndef ASYNC_READ_NUMOF
#define ASYNC_READ_NUMOF 2
#endif

/**
 * @brief   asynchronus read callback type
 */
typedef void (*native_async_read_callback_t)(int fd, void *arg);

/**
 * @brief    Interrupt callback information structure
 */
typedef struct {
    pid_t child_pid;                    /**< PID of the interrupt listener */
    native_async_read_callback_t cb;    /**< Interrupt callback function */
    void *arg;                          /**< Argument ptr for the callback */
    struct pollfd *fd;                  /**< sysfs gpio fd */
} async_read_t;

/**
 * @brief   initialize asynchronus read system
 *
 * This registers SIGIO signal handler.
 */
void native_async_read_setup(void);

/**
 * @brief   shutdown asynchronus read system
 *
 * This deregisters SIGIO signal handler.
 */
void native_async_read_cleanup(void);

/**
 * @brief   resume monitoring of file descriptors
 *
 * Call this function after reading file descriptors.
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