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/*******************************************************************************
* Copyright (c) 2007, 2010 Wind River Systems, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
/*
* Asynchronous system call request interface
*/
#ifndef D_asyncreq
#define D_asyncreq
#if ENABLE_AIO
# include <aio.h>
#endif
#ifdef __SYMBIAN32__
# include <select.h>
#endif
#include <framework/link.h>
#include <framework/events.h>
enum {
AsyncReqRead, /* File read */
AsyncReqWrite, /* File write */
AsyncReqSeekRead, /* File seek and read */
AsyncReqSeekWrite, /* File seek and write */
AsyncReqRecv, /* Socket recv */
AsyncReqSend, /* Socket send */
AsyncReqRecvFrom, /* Socket recvfrom */
AsyncReqSendTo, /* Socket sendto */
AsyncReqAccept, /* Accept socket connections */
AsyncReqConnect, /* Connect to socket */
AsyncReqConnectPipe, /* Connect named pipe (Windows) */
AsyncReqWaitpid, /* Wait for process change */
AsyncReqSelect, /* Do select() on file handles */
AsyncReqClose /* File close */
};
typedef struct AsyncReqInfo AsyncReqInfo;
struct AsyncReqInfo {
EventCallBack * done; /* The callback argument is address of AsyncReqInfo */
void * client_data;
int type;
union {
struct {
/* In */
int fd;
off_t offset;
void * bufp;
size_t bufsz;
/* Out */
ssize_t rval;
#if ENABLE_AIO
/* Private */
struct aiocb aio;
#endif
} fio;
struct {
/* In */
int sock;
void * bufp;
size_t bufsz;
int flags;
struct sockaddr * addr;
#if defined(_WRS_KERNEL)
int addrlen;
#else
socklen_t addrlen;
#endif
/* Out */
ssize_t rval;
} sio;
struct {
/* In */
int sock;
struct sockaddr * addr;
#if defined(_WRS_KERNEL)
int addrlen;
#else
socklen_t addrlen;
#endif
/* Out */
int rval;
} acc;
struct {
/* In */
int sock;
struct sockaddr * addr;
socklen_t addrlen;
/* Out */
int rval;
} con;
#ifdef WIN32
struct {
/* In */
HANDLE pipe;
/* Out */
BOOL rval;
} cnp;
#endif
struct {
/* In */
pid_t pid;
int options;
/* Out */
int status;
pid_t rval;
} wpid;
struct {
/* In */
int nfds;
fd_set readfds;
fd_set writefds;
fd_set errorfds;
struct timespec timeout;
/* Out */
int rval;
} select;
} u;
int error; /* Readable by callback function */
};
extern void async_req_post(AsyncReqInfo * req);
extern void ini_asyncreq(void);
#endif /* D_asyncreq */
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